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7	Configuration (Hadoop 0.20.1 API)
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89	<H2>
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91	org.apache.hadoop.conf</FONT>
92	<BR>
93	Class Configuration</H2>
94	<PRE>
95	<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</A>
96	<IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><B>org.apache.hadoop.conf.Configuration</B>
97	</PRE>
98	<DL>
99	<DT><B>All Implemented Interfaces:</B> <DD><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Iterable.html?is-external=true" title="class or interface in java.lang">Iterable</A><<A HREF="http://java.sun.com/javase/6/docs/api/java/util/Map.Entry.html?is-external=true" title="class or interface in java.util">Map.Entry</A><<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>,<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>>>, <A HREF="../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A></DD>
100	</DL>
101	<DL>
102	<DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</A></DD>
103	</DL>
104	<HR>
105	<DL>
106	<DT><PRE>public class <B>Configuration</B><DT>extends <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A><DT>implements <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Iterable.html?is-external=true" title="class or interface in java.lang">Iterable</A><<A HREF="http://java.sun.com/javase/6/docs/api/java/util/Map.Entry.html?is-external=true" title="class or interface in java.util">Map.Entry</A><<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>,<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>>>, <A HREF="../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A></DL>
107	</PRE>
108
109	<P>
110	Provides access to configuration parameters.
111
112	<h4 id="Resources">Resources</h4>
113
114	<p>Configurations are specified by resources. A resource contains a set of
115	name/value pairs as XML data. Each resource is named by either a
116	<code>String</code> or by a <A HREF="../../../../org/apache/hadoop/fs/Path.html" title="class in org.apache.hadoop.fs"><CODE>Path</CODE></A>. If named by a <code>String</code>,
117	then the classpath is examined for a file with that name. If named by a
118	<code>Path</code>, then the local filesystem is examined directly, without
119	referring to the classpath.
120
121	<p>Unless explicitly turned off, Hadoop by default specifies two
122	resources, loaded in-order from the classpath: <ol>
123	<li><tt><a href="../../../../../core-default.html">core-default.xml</a>
124	</tt>: Read-only defaults for hadoop.</li>
125	<li><tt>core-site.xml</tt>: Site-specific configuration for a given hadoop
126	installation.</li>
127	</ol>
128	Applications may add additional resources, which are loaded
129	subsequent to these resources in the order they are added.
130
131	<h4 id="FinalParams">Final Parameters</h4>
132
133	<p>Configuration parameters may be declared <i>final</i>.
134	Once a resource declares a value final, no subsequently-loaded
135	resource can alter that value.
136	For example, one might define a final parameter with:
137	<tt><pre>
138	<property>
139	<name>dfs.client.buffer.dir</name>
140	<value>/tmp/hadoop/dfs/client</value>
141	<b><final>true</final></b>
142	</property></pre></tt>
143
144	Administrators typically define parameters as final in
145	<tt>core-site.xml</tt> for values that user applications may not alter.
146
147	<h4 id="VariableExpansion">Variable Expansion</h4>
148
149	<p>Value strings are first processed for <i>variable expansion</i>. The
150	available properties are:<ol>
151	<li>Other properties defined in this Configuration; and, if a name is
152	undefined here,</li>
153	<li>Properties in <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/System.html?is-external=true#getProperties()" title="class or interface in java.lang"><CODE>System.getProperties()</CODE></A>.</li>
154	</ol>
155
156	<p>For example, if a configuration resource contains the following property
157	definitions:
158	<tt><pre>
159	<property>
160	<name>basedir</name>
161	<value>/user/${<i>user.name</i>}</value>
162	</property>
163
164	<property>
165	<name>tempdir</name>
166	<value>${<i>basedir</i>}/tmp</value>
167	</property></pre></tt>
168
169	When <tt>conf.get("tempdir")</tt> is called, then <tt>${<i>basedir</i>}</tt>
170	will be resolved to another property in this Configuration, while
171	<tt>${<i>user.name</i>}</tt> would then ordinarily be resolved to the value
172	of the System property with that name.
173	<P>
174
175	<P>
176	<HR>
177
178	<P>
179	<!-- ======== NESTED CLASS SUMMARY ======== -->
180
181	<A NAME="nested_class_summary"><!-- --></A>
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183	<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
184	<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
185	<B>Nested Class Summary</B></FONT></TH>
186	</TR>
187	<TR BGCOLOR="white" CLASS="TableRowColor">
188	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
189	<CODE>static class</CODE></FONT></TD>
190	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.IntegerRanges.html" title="class in org.apache.hadoop.conf">Configuration.IntegerRanges</A></B></CODE>
191
192	<BR>
193	A class that represents a set of positive integer ranges.</TD>
194	</TR>
195	</TABLE>
196
197	<!-- ======== CONSTRUCTOR SUMMARY ======== -->
198
199	<A NAME="constructor_summary"><!-- --></A>
200	<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
201	<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
202	<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
203	<B>Constructor Summary</B></FONT></TH>
204	</TR>
205	<TR BGCOLOR="white" CLASS="TableRowColor">
206	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#Configuration()">Configuration</A></B>()</CODE>
207
208	<BR>
209	A new configuration.</TD>
210	</TR>
211	<TR BGCOLOR="white" CLASS="TableRowColor">
212	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#Configuration(boolean)">Configuration</A></B>(boolean loadDefaults)</CODE>
213
214	<BR>
215	A new configuration where the behavior of reading from the default
216	resources can be turned off.</TD>
217	</TR>
218	<TR BGCOLOR="white" CLASS="TableRowColor">
219	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#Configuration(org.apache.hadoop.conf.Configuration)">Configuration</A></B>(<A HREF="../../../../org/apache/hadoop/conf/Configuration.html" title="class in org.apache.hadoop.conf">Configuration</A> other)</CODE>
220
221	<BR>
222	A new configuration with the same settings cloned from another.</TD>
223	</TR>
224	</TABLE>
225
226	<!-- ========== METHOD SUMMARY =========== -->
227
228	<A NAME="method_summary"><!-- --></A>
229	<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
230	<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
231	<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
232	<B>Method Summary</B></FONT></TH>
233	</TR>
234	<TR BGCOLOR="white" CLASS="TableRowColor">
235	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
236	<CODE>static void</CODE></FONT></TD>
237	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#addDefaultResource(java.lang.String)">addDefaultResource</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name)</CODE>
238
239	<BR>
240	Add a default resource.</TD>
241	</TR>
242	<TR BGCOLOR="white" CLASS="TableRowColor">
243	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
244	<CODE> void</CODE></FONT></TD>
245	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#addResource(java.io.InputStream)">addResource</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/io/InputStream.html?is-external=true" title="class or interface in java.io">InputStream</A> in)</CODE>
246
247	<BR>
248	Add a configuration resource.</TD>
249	</TR>
250	<TR BGCOLOR="white" CLASS="TableRowColor">
251	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
252	<CODE> void</CODE></FONT></TD>
253	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#addResource(org.apache.hadoop.fs.Path)">addResource</A></B>(<A HREF="../../../../org/apache/hadoop/fs/Path.html" title="class in org.apache.hadoop.fs">Path</A> file)</CODE>
254
255	<BR>
256	Add a configuration resource.</TD>
257	</TR>
258	<TR BGCOLOR="white" CLASS="TableRowColor">
259	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
260	<CODE> void</CODE></FONT></TD>
261	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#addResource(java.lang.String)">addResource</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name)</CODE>
262
263	<BR>
264	Add a configuration resource.</TD>
265	</TR>
266	<TR BGCOLOR="white" CLASS="TableRowColor">
267	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
268	<CODE> void</CODE></FONT></TD>
269	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#addResource(java.net.URL)">addResource</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/net/URL.html?is-external=true" title="class or interface in java.net">URL</A> url)</CODE>
270
271	<BR>
272	Add a configuration resource.</TD>
273	</TR>
274	<TR BGCOLOR="white" CLASS="TableRowColor">
275	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
276	<CODE> void</CODE></FONT></TD>
277	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#clear()">clear</A></B>()</CODE>
278
279	<BR>
280	Clears all keys from the configuration.</TD>
281	</TR>
282	<TR BGCOLOR="white" CLASS="TableRowColor">
283	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
284	<CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD>
285	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#get(java.lang.String)">get</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name)</CODE>
286
287	<BR>
288	Get the value of the <code>name</code> property, <code>null</code> if
289	no such property exists.</TD>
290	</TR>
291	<TR BGCOLOR="white" CLASS="TableRowColor">
292	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
293	<CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD>
294	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#get(java.lang.String, java.lang.String)">get</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name,
295	<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> defaultValue)</CODE>
296
297	<BR>
298	Get the value of the <code>name</code> property.</TD>
299	</TR>
300	<TR BGCOLOR="white" CLASS="TableRowColor">
301	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
302	<CODE> boolean</CODE></FONT></TD>
303	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#getBoolean(java.lang.String, boolean)">getBoolean</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name,
304	boolean defaultValue)</CODE>
305
306	<BR>
307	Get the value of the <code>name</code> property as a <code>boolean</code>.</TD>
308	</TR>
309	<TR BGCOLOR="white" CLASS="TableRowColor">
310	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
311	<CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><?></CODE></FONT></TD>
312	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#getClass(java.lang.String, java.lang.Class)">getClass</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name,
313	<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><?> defaultValue)</CODE>
314
315	<BR>
316	Get the value of the <code>name</code> property as a <code>Class</code>.</TD>
317	</TR>
318	<TR BGCOLOR="white" CLASS="TableRowColor">
319	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
320	<CODE>
321	<TABLE BORDER="0" CELLPADDING="0" CELLSPACING="0" SUMMARY="">
322	<TR ALIGN="right" VALIGN="">
323	<TD NOWRAP><FONT SIZE="-1">
324	<CODE><U> <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends U></CODE></FONT></TD>
325	</TR>
326	</TABLE>
327	</CODE></FONT></TD>
328	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#getClass(java.lang.String, java.lang.Class, java.lang.Class)">getClass</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name,
329	<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends U> defaultValue,
330	<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><U> xface)</CODE>
331
332	<BR>
333	Get the value of the <code>name</code> property as a <code>Class</code>
334	implementing the interface specified by <code>xface</code>.</TD>
335	</TR>
336	<TR BGCOLOR="white" CLASS="TableRowColor">
337	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
338	<CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><?></CODE></FONT></TD>
339	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#getClassByName(java.lang.String)">getClassByName</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name)</CODE>
340
341	<BR>
342	Load a class by name.</TD>
343	</TR>
344	<TR BGCOLOR="white" CLASS="TableRowColor">
345	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
346	<CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><?>[]</CODE></FONT></TD>
347	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#getClasses(java.lang.String, java.lang.Class...)">getClasses</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name,
348	<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><?>... defaultValue)</CODE>
349
350	<BR>
351	Get the value of the <code>name</code> property
352	as an array of <code>Class</code>.</TD>
353	</TR>
354	<TR BGCOLOR="white" CLASS="TableRowColor">
355	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
356	<CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/ClassLoader.html?is-external=true" title="class or interface in java.lang">ClassLoader</A></CODE></FONT></TD>
357	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#getClassLoader()">getClassLoader</A></B>()</CODE>
358
359	<BR>
360	Get the <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/ClassLoader.html?is-external=true" title="class or interface in java.lang"><CODE>ClassLoader</CODE></A> for this job.</TD>
361	</TR>
362	<TR BGCOLOR="white" CLASS="TableRowColor">
363	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
364	<CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/io/InputStream.html?is-external=true" title="class or interface in java.io">InputStream</A></CODE></FONT></TD>
365	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#getConfResourceAsInputStream(java.lang.String)">getConfResourceAsInputStream</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name)</CODE>
366
367	<BR>
368	Get an input stream attached to the configuration resource with the
369	given <code>name</code>.</TD>
370	</TR>
371	<TR BGCOLOR="white" CLASS="TableRowColor">
372	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
373	<CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/io/Reader.html?is-external=true" title="class or interface in java.io">Reader</A></CODE></FONT></TD>
374	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#getConfResourceAsReader(java.lang.String)">getConfResourceAsReader</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name)</CODE>
375
376	<BR>
377	Get a <A HREF="http://java.sun.com/javase/6/docs/api/java/io/Reader.html?is-external=true" title="class or interface in java.io"><CODE>Reader</CODE></A> attached to the configuration resource with the
378	given <code>name</code>.</TD>
379	</TR>
380	<TR BGCOLOR="white" CLASS="TableRowColor">
381	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
382	<CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/io/File.html?is-external=true" title="class or interface in java.io">File</A></CODE></FONT></TD>
383	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#getFile(java.lang.String, java.lang.String)">getFile</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> dirsProp,
384	<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> path)</CODE>
385
386	<BR>
387	Get a local file name under a directory named in <i>dirsProp</i> with
388	the given <i>path</i>.</TD>
389	</TR>
390	<TR BGCOLOR="white" CLASS="TableRowColor">
391	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
392	<CODE> float</CODE></FONT></TD>
393	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#getFloat(java.lang.String, float)">getFloat</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name,
394	float defaultValue)</CODE>
395
396	<BR>
397	Get the value of the <code>name</code> property as a <code>float</code>.</TD>
398	</TR>
399	<TR BGCOLOR="white" CLASS="TableRowColor">
400	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
401	<CODE> int</CODE></FONT></TD>
402	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#getInt(java.lang.String, int)">getInt</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name,
403	int defaultValue)</CODE>
404
405	<BR>
406	Get the value of the <code>name</code> property as an <code>int</code>.</TD>
407	</TR>
408	<TR BGCOLOR="white" CLASS="TableRowColor">
409	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
410	<CODE> <A HREF="../../../../org/apache/hadoop/fs/Path.html" title="class in org.apache.hadoop.fs">Path</A></CODE></FONT></TD>
411	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#getLocalPath(java.lang.String, java.lang.String)">getLocalPath</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> dirsProp,
412	<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> path)</CODE>
413
414	<BR>
415	Get a local file under a directory named by <i>dirsProp</i> with
416	the given <i>path</i>.</TD>
417	</TR>
418	<TR BGCOLOR="white" CLASS="TableRowColor">
419	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
420	<CODE> long</CODE></FONT></TD>
421	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#getLong(java.lang.String, long)">getLong</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name,
422	long defaultValue)</CODE>
423
424	<BR>
425	Get the value of the <code>name</code> property as a <code>long</code>.</TD>
426	</TR>
427	<TR BGCOLOR="white" CLASS="TableRowColor">
428	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
429	<CODE> <A HREF="../../../../org/apache/hadoop/conf/Configuration.IntegerRanges.html" title="class in org.apache.hadoop.conf">Configuration.IntegerRanges</A></CODE></FONT></TD>
430	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#getRange(java.lang.String, java.lang.String)">getRange</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name,
431	<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> defaultValue)</CODE>
432
433	<BR>
434	Parse the given attribute as a set of integer ranges</TD>
435	</TR>
436	<TR BGCOLOR="white" CLASS="TableRowColor">
437	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
438	<CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD>
439	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#getRaw(java.lang.String)">getRaw</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name)</CODE>
440
441	<BR>
442	Get the value of the <code>name</code> property, without doing
443	<a href="#VariableExpansion">variable expansion</a>.</TD>
444	</TR>
445	<TR BGCOLOR="white" CLASS="TableRowColor">
446	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
447	<CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/net/URL.html?is-external=true" title="class or interface in java.net">URL</A></CODE></FONT></TD>
448	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#getResource(java.lang.String)">getResource</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name)</CODE>
449
450	<BR>
451	Get the <A HREF="http://java.sun.com/javase/6/docs/api/java/net/URL.html?is-external=true" title="class or interface in java.net"><CODE>URL</CODE></A> for the named resource.</TD>
452	</TR>
453	<TR BGCOLOR="white" CLASS="TableRowColor">
454	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
455	<CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</A><<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>></CODE></FONT></TD>
456	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#getStringCollection(java.lang.String)">getStringCollection</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name)</CODE>
457
458	<BR>
459	Get the comma delimited values of the <code>name</code> property as
460	a collection of <code>String</code>s.</TD>
461	</TR>
462	<TR BGCOLOR="white" CLASS="TableRowColor">
463	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
464	<CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>[]</CODE></FONT></TD>
465	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#getStrings(java.lang.String)">getStrings</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name)</CODE>
466
467	<BR>
468	Get the comma delimited values of the <code>name</code> property as
469	an array of <code>String</code>s.</TD>
470	</TR>
471	<TR BGCOLOR="white" CLASS="TableRowColor">
472	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
473	<CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>[]</CODE></FONT></TD>
474	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#getStrings(java.lang.String, java.lang.String...)">getStrings</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name,
475	<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>... defaultValue)</CODE>
476
477	<BR>
478	Get the comma delimited values of the <code>name</code> property as
479	an array of <code>String</code>s.</TD>
480	</TR>
481	<TR BGCOLOR="white" CLASS="TableRowColor">
482	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
483	<CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/util/Iterator.html?is-external=true" title="class or interface in java.util">Iterator</A><<A HREF="http://java.sun.com/javase/6/docs/api/java/util/Map.Entry.html?is-external=true" title="class or interface in java.util">Map.Entry</A><<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>,<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>>></CODE></FONT></TD>
484	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#iterator()">iterator</A></B>()</CODE>
485
486	<BR>
487	Get an <A HREF="http://java.sun.com/javase/6/docs/api/java/util/Iterator.html?is-external=true" title="class or interface in java.util"><CODE>Iterator</CODE></A> to go through the list of <code>String</code>
488	key-value pairs in the configuration.</TD>
489	</TR>
490	<TR BGCOLOR="white" CLASS="TableRowColor">
491	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
492	<CODE>static void</CODE></FONT></TD>
493	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#main(java.lang.String[])">main</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>[] args)</CODE>
494
495	<BR>
496	For debugging.</TD>
497	</TR>
498	<TR BGCOLOR="white" CLASS="TableRowColor">
499	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
500	<CODE> void</CODE></FONT></TD>
501	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#readFields(java.io.DataInput)">readFields</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/io/DataInput.html?is-external=true" title="class or interface in java.io">DataInput</A> in)</CODE>
502
503	<BR>
504	Deserialize the fields of this object from <code>in</code>.</TD>
505	</TR>
506	<TR BGCOLOR="white" CLASS="TableRowColor">
507	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
508	<CODE> void</CODE></FONT></TD>
509	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#reloadConfiguration()">reloadConfiguration</A></B>()</CODE>
510
511	<BR>
512	Reload configuration from previously added resources.</TD>
513	</TR>
514	<TR BGCOLOR="white" CLASS="TableRowColor">
515	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
516	<CODE> void</CODE></FONT></TD>
517	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#set(java.lang.String, java.lang.String)">set</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name,
518	<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> value)</CODE>
519
520	<BR>
521	Set the <code>value</code> of the <code>name</code> property.</TD>
522	</TR>
523	<TR BGCOLOR="white" CLASS="TableRowColor">
524	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
525	<CODE> void</CODE></FONT></TD>
526	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#setBoolean(java.lang.String, boolean)">setBoolean</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name,
527	boolean value)</CODE>
528
529	<BR>
530	Set the value of the <code>name</code> property to a <code>boolean</code>.</TD>
531	</TR>
532	<TR BGCOLOR="white" CLASS="TableRowColor">
533	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
534	<CODE> void</CODE></FONT></TD>
535	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#setBooleanIfUnset(java.lang.String, boolean)">setBooleanIfUnset</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name,
536	boolean value)</CODE>
537
538	<BR>
539	Set the given property, if it is currently unset.</TD>
540	</TR>
541	<TR BGCOLOR="white" CLASS="TableRowColor">
542	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
543	<CODE> void</CODE></FONT></TD>
544	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#setClass(java.lang.String, java.lang.Class, java.lang.Class)">setClass</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name,
545	<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><?> theClass,
546	<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><?> xface)</CODE>
547
548	<BR>
549	Set the value of the <code>name</code> property to the name of a
550	<code>theClass</code> implementing the given interface <code>xface</code>.</TD>
551	</TR>
552	<TR BGCOLOR="white" CLASS="TableRowColor">
553	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
554	<CODE> void</CODE></FONT></TD>
555	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#setClassLoader(java.lang.ClassLoader)">setClassLoader</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/ClassLoader.html?is-external=true" title="class or interface in java.lang">ClassLoader</A> classLoader)</CODE>
556
557	<BR>
558	Set the class loader that will be used to load the various objects.</TD>
559	</TR>
560	<TR BGCOLOR="white" CLASS="TableRowColor">
561	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
562	<CODE> void</CODE></FONT></TD>
563	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#setFloat(java.lang.String, float)">setFloat</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name,
564	float value)</CODE>
565
566	<BR>
567	Set the value of the <code>name</code> property to a <code>float</code>.</TD>
568	</TR>
569	<TR BGCOLOR="white" CLASS="TableRowColor">
570	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
571	<CODE> void</CODE></FONT></TD>
572	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#setIfUnset(java.lang.String, java.lang.String)">setIfUnset</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name,
573	<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> value)</CODE>
574
575	<BR>
576	Sets a property if it is currently unset.</TD>
577	</TR>
578	<TR BGCOLOR="white" CLASS="TableRowColor">
579	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
580	<CODE> void</CODE></FONT></TD>
581	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#setInt(java.lang.String, int)">setInt</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name,
582	int value)</CODE>
583
584	<BR>
585	Set the value of the <code>name</code> property to an <code>int</code>.</TD>
586	</TR>
587	<TR BGCOLOR="white" CLASS="TableRowColor">
588	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
589	<CODE> void</CODE></FONT></TD>
590	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#setLong(java.lang.String, long)">setLong</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name,
591	long value)</CODE>
592
593	<BR>
594	Set the value of the <code>name</code> property to a <code>long</code>.</TD>
595	</TR>
596	<TR BGCOLOR="white" CLASS="TableRowColor">
597	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
598	<CODE> void</CODE></FONT></TD>
599	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#setQuietMode(boolean)">setQuietMode</A></B>(boolean quietmode)</CODE>
600
601	<BR>
602	Set the quietness-mode.</TD>
603	</TR>
604	<TR BGCOLOR="white" CLASS="TableRowColor">
605	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
606	<CODE> void</CODE></FONT></TD>
607	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#setStrings(java.lang.String, java.lang.String...)">setStrings</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name,
608	<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>... values)</CODE>
609
610	<BR>
611	Set the array of string values for the <code>name</code> property as
612	as comma delimited values.</TD>
613	</TR>
614	<TR BGCOLOR="white" CLASS="TableRowColor">
615	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
616	<CODE> int</CODE></FONT></TD>
617	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#size()">size</A></B>()</CODE>
618
619	<BR>
620	Return the number of keys in the configuration.</TD>
621	</TR>
622	<TR BGCOLOR="white" CLASS="TableRowColor">
623	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
624	<CODE> <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD>
625	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#toString()">toString</A></B>()</CODE>
626
627	<BR>
628	</TD>
629	</TR>
630	<TR BGCOLOR="white" CLASS="TableRowColor">
631	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
632	<CODE> void</CODE></FONT></TD>
633	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#write(java.io.DataOutput)">write</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/io/DataOutput.html?is-external=true" title="class or interface in java.io">DataOutput</A> out)</CODE>
634
635	<BR>
636	Serialize the fields of this object to <code>out</code>.</TD>
637	</TR>
638	<TR BGCOLOR="white" CLASS="TableRowColor">
639	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
640	<CODE> void</CODE></FONT></TD>
641	<TD><CODE><B><A HREF="../../../../org/apache/hadoop/conf/Configuration.html#writeXml(java.io.OutputStream)">writeXml</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/io/OutputStream.html?is-external=true" title="class or interface in java.io">OutputStream</A> out)</CODE>
642
643	<BR>
644	Write out the non-default properties in this configuration to the give
645	<A HREF="http://java.sun.com/javase/6/docs/api/java/io/OutputStream.html?is-external=true" title="class or interface in java.io"><CODE>OutputStream</CODE></A>.</TD>
646	</TR>
647	</TABLE>
648	<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
649	<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
650	<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
651	<TH ALIGN="left"><B>Methods inherited from class java.lang.<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A></B></TH>
652	</TR>
653	<TR BGCOLOR="white" CLASS="TableRowColor">
654	<TD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang">equals</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang">finalize</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang">hashCode</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang">notifyAll</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait(long, int)" title="class or interface in java.lang">wait</A></CODE></TD>
655	</TR>
656	</TABLE>
657
658	<P>
659
660	<!-- ========= CONSTRUCTOR DETAIL ======== -->
661
662	<A NAME="constructor_detail"><!-- --></A>
663	<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
664	<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
665	<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
666	<B>Constructor Detail</B></FONT></TH>
667	</TR>
668	</TABLE>
669
670	<A NAME="Configuration()"><!-- --></A><H3>
671	Configuration</H3>
672	<PRE>
673	public <B>Configuration</B>()</PRE>
674	<DL>
675	<DD>A new configuration.
676	<P>
677	</DL>
678	<HR>
679
680	<A NAME="Configuration(boolean)"><!-- --></A><H3>
681	Configuration</H3>
682	<PRE>
683	public <B>Configuration</B>(boolean loadDefaults)</PRE>
684	<DL>
685	<DD>A new configuration where the behavior of reading from the default
686	resources can be turned off.
687
688	If the parameter <code>loadDefaults</code> is false, the new instance
689	will not load resources from the default files.
690	<P>
691	<DL>
692	<DT><B>Parameters:</B><DD><CODE>loadDefaults</CODE> - specifies whether to load from the default files</DL>
693	</DL>
694	<HR>
695
696	<A NAME="Configuration(org.apache.hadoop.conf.Configuration)"><!-- --></A><H3>
697	Configuration</H3>
698	<PRE>
699	public <B>Configuration</B>(<A HREF="../../../../org/apache/hadoop/conf/Configuration.html" title="class in org.apache.hadoop.conf">Configuration</A> other)</PRE>
700	<DL>
701	<DD>A new configuration with the same settings cloned from another.
702	<P>
703	<DL>
704	<DT><B>Parameters:</B><DD><CODE>other</CODE> - the configuration from which to clone settings.</DL>
705	</DL>
706
707	<!-- ============ METHOD DETAIL ========== -->
708
709	<A NAME="method_detail"><!-- --></A>
710	<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
711	<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
712	<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
713	<B>Method Detail</B></FONT></TH>
714	</TR>
715	</TABLE>
716
717	<A NAME="addDefaultResource(java.lang.String)"><!-- --></A><H3>
718	addDefaultResource</H3>
719	<PRE>
720	public static void <B>addDefaultResource</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name)</PRE>
721	<DL>
722	<DD>Add a default resource. Resources are loaded in the order of the resources
723	added.
724	<P>
725	<DD><DL>
726	</DL>
727	</DD>
728	<DD><DL>
729	<DT><B>Parameters:</B><DD><CODE>name</CODE> - file name. File should be present in the classpath.</DL>
730	</DD>
731	</DL>
732	<HR>
733
734	<A NAME="addResource(java.lang.String)"><!-- --></A><H3>
735	addResource</H3>
736	<PRE>
737	public void <B>addResource</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name)</PRE>
738	<DL>
739	<DD>Add a configuration resource.
740
741	The properties of this resource will override properties of previously
742	added resources, unless they were marked <a href="#Final">final</a>.
743	<P>
744	<DD><DL>
745	</DL>
746	</DD>
747	<DD><DL>
748	<DT><B>Parameters:</B><DD><CODE>name</CODE> - resource to be added, the classpath is examined for a file
749	with that name.</DL>
750	</DD>
751	</DL>
752	<HR>
753
754	<A NAME="addResource(java.net.URL)"><!-- --></A><H3>
755	addResource</H3>
756	<PRE>
757	public void <B>addResource</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/net/URL.html?is-external=true" title="class or interface in java.net">URL</A> url)</PRE>
758	<DL>
759	<DD>Add a configuration resource.
760
761	The properties of this resource will override properties of previously
762	added resources, unless they were marked <a href="#Final">final</a>.
763	<P>
764	<DD><DL>
765	</DL>
766	</DD>
767	<DD><DL>
768	<DT><B>Parameters:</B><DD><CODE>url</CODE> - url of the resource to be added, the local filesystem is
769	examined directly to find the resource, without referring to
770	the classpath.</DL>
771	</DD>
772	</DL>
773	<HR>
774
775	<A NAME="addResource(org.apache.hadoop.fs.Path)"><!-- --></A><H3>
776	addResource</H3>
777	<PRE>
778	public void <B>addResource</B>(<A HREF="../../../../org/apache/hadoop/fs/Path.html" title="class in org.apache.hadoop.fs">Path</A> file)</PRE>
779	<DL>
780	<DD>Add a configuration resource.
781
782	The properties of this resource will override properties of previously
783	added resources, unless they were marked <a href="#Final">final</a>.
784	<P>
785	<DD><DL>
786	</DL>
787	</DD>
788	<DD><DL>
789	<DT><B>Parameters:</B><DD><CODE>file</CODE> - file-path of resource to be added, the local filesystem is
790	examined directly to find the resource, without referring to
791	the classpath.</DL>
792	</DD>
793	</DL>
794	<HR>
795
796	<A NAME="addResource(java.io.InputStream)"><!-- --></A><H3>
797	addResource</H3>
798	<PRE>
799	public void <B>addResource</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/io/InputStream.html?is-external=true" title="class or interface in java.io">InputStream</A> in)</PRE>
800	<DL>
801	<DD>Add a configuration resource.
802
803	The properties of this resource will override properties of previously
804	added resources, unless they were marked <a href="#Final">final</a>.
805	<P>
806	<DD><DL>
807	</DL>
808	</DD>
809	<DD><DL>
810	<DT><B>Parameters:</B><DD><CODE>in</CODE> - InputStream to deserialize the object from.</DL>
811	</DD>
812	</DL>
813	<HR>
814
815	<A NAME="reloadConfiguration()"><!-- --></A><H3>
816	reloadConfiguration</H3>
817	<PRE>
818	public void <B>reloadConfiguration</B>()</PRE>
819	<DL>
820	<DD>Reload configuration from previously added resources.
821
822	This method will clear all the configuration read from the added
823	resources, and final parameters. This will make the resources to
824	be read again before accessing the values. Values that are added
825	via set methods will overlay values read from the resources.
826	<P>
827	<DD><DL>
828	</DL>
829	</DD>
830	<DD><DL>
831	</DL>
832	</DD>
833	</DL>
834	<HR>
835
836	<A NAME="get(java.lang.String)"><!-- --></A><H3>
837	get</H3>
838	<PRE>
839	public <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>get</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name)</PRE>
840	<DL>
841	<DD>Get the value of the <code>name</code> property, <code>null</code> if
842	no such property exists.
843
844	Values are processed for <a href="#VariableExpansion">variable expansion</a>
845	before being returned.
846	<P>
847	<DD><DL>
848	</DL>
849	</DD>
850	<DD><DL>
851	<DT><B>Parameters:</B><DD><CODE>name</CODE> - the property name.
852	<DT><B>Returns:</B><DD>the value of the <code>name</code> property,
853	or null if no such property exists.</DL>
854	</DD>
855	</DL>
856	<HR>
857
858	<A NAME="getRaw(java.lang.String)"><!-- --></A><H3>
859	getRaw</H3>
860	<PRE>
861	public <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>getRaw</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name)</PRE>
862	<DL>
863	<DD>Get the value of the <code>name</code> property, without doing
864	<a href="#VariableExpansion">variable expansion</a>.
865	<P>
866	<DD><DL>
867	</DL>
868	</DD>
869	<DD><DL>
870	<DT><B>Parameters:</B><DD><CODE>name</CODE> - the property name.
871	<DT><B>Returns:</B><DD>the value of the <code>name</code> property,
872	or null if no such property exists.</DL>
873	</DD>
874	</DL>
875	<HR>
876
877	<A NAME="set(java.lang.String, java.lang.String)"><!-- --></A><H3>
878	set</H3>
879	<PRE>
880	public void <B>set</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name,
881	<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> value)</PRE>
882	<DL>
883	<DD>Set the <code>value</code> of the <code>name</code> property.
884	<P>
885	<DD><DL>
886	</DL>
887	</DD>
888	<DD><DL>
889	<DT><B>Parameters:</B><DD><CODE>name</CODE> - property name.<DD><CODE>value</CODE> - property value.</DL>
890	</DD>
891	</DL>
892	<HR>
893
894	<A NAME="setIfUnset(java.lang.String, java.lang.String)"><!-- --></A><H3>
895	setIfUnset</H3>
896	<PRE>
897	public void <B>setIfUnset</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name,
898	<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> value)</PRE>
899	<DL>
900	<DD>Sets a property if it is currently unset.
901	<P>
902	<DD><DL>
903	</DL>
904	</DD>
905	<DD><DL>
906	<DT><B>Parameters:</B><DD><CODE>name</CODE> - the property name<DD><CODE>value</CODE> - the new value</DL>
907	</DD>
908	</DL>
909	<HR>
910
911	<A NAME="get(java.lang.String, java.lang.String)"><!-- --></A><H3>
912	get</H3>
913	<PRE>
914	public <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>get</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name,
915	<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> defaultValue)</PRE>
916	<DL>
917	<DD>Get the value of the <code>name</code> property. If no such property
918	exists, then <code>defaultValue</code> is returned.
919	<P>
920	<DD><DL>
921	</DL>
922	</DD>
923	<DD><DL>
924	<DT><B>Parameters:</B><DD><CODE>name</CODE> - property name.<DD><CODE>defaultValue</CODE> - default value.
925	<DT><B>Returns:</B><DD>property value, or <code>defaultValue</code> if the property
926	doesn't exist.</DL>
927	</DD>
928	</DL>
929	<HR>
930
931	<A NAME="getInt(java.lang.String, int)"><!-- --></A><H3>
932	getInt</H3>
933	<PRE>
934	public int <B>getInt</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name,
935	int defaultValue)</PRE>
936	<DL>
937	<DD>Get the value of the <code>name</code> property as an <code>int</code>.
938
939	If no such property exists, or if the specified value is not a valid
940	<code>int</code>, then <code>defaultValue</code> is returned.
941	<P>
942	<DD><DL>
943	</DL>
944	</DD>
945	<DD><DL>
946	<DT><B>Parameters:</B><DD><CODE>name</CODE> - property name.<DD><CODE>defaultValue</CODE> - default value.
947	<DT><B>Returns:</B><DD>property value as an <code>int</code>,
948	or <code>defaultValue</code>.</DL>
949	</DD>
950	</DL>
951	<HR>
952
953	<A NAME="setInt(java.lang.String, int)"><!-- --></A><H3>
954	setInt</H3>
955	<PRE>
956	public void <B>setInt</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name,
957	int value)</PRE>
958	<DL>
959	<DD>Set the value of the <code>name</code> property to an <code>int</code>.
960	<P>
961	<DD><DL>
962	</DL>
963	</DD>
964	<DD><DL>
965	<DT><B>Parameters:</B><DD><CODE>name</CODE> - property name.<DD><CODE>value</CODE> - <code>int</code> value of the property.</DL>
966	</DD>
967	</DL>
968	<HR>
969
970	<A NAME="getLong(java.lang.String, long)"><!-- --></A><H3>
971	getLong</H3>
972	<PRE>
973	public long <B>getLong</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name,
974	long defaultValue)</PRE>
975	<DL>
976	<DD>Get the value of the <code>name</code> property as a <code>long</code>.
977	If no such property is specified, or if the specified value is not a valid
978	<code>long</code>, then <code>defaultValue</code> is returned.
979	<P>
980	<DD><DL>
981	</DL>
982	</DD>
983	<DD><DL>
984	<DT><B>Parameters:</B><DD><CODE>name</CODE> - property name.<DD><CODE>defaultValue</CODE> - default value.
985	<DT><B>Returns:</B><DD>property value as a <code>long</code>,
986	or <code>defaultValue</code>.</DL>
987	</DD>
988	</DL>
989	<HR>
990
991	<A NAME="setLong(java.lang.String, long)"><!-- --></A><H3>
992	setLong</H3>
993	<PRE>
994	public void <B>setLong</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name,
995	long value)</PRE>
996	<DL>
997	<DD>Set the value of the <code>name</code> property to a <code>long</code>.
998	<P>
999	<DD><DL>
1000	</DL>
1001	</DD>
1002	<DD><DL>
1003	<DT><B>Parameters:</B><DD><CODE>name</CODE> - property name.<DD><CODE>value</CODE> - <code>long</code> value of the property.</DL>
1004	</DD>
1005	</DL>
1006	<HR>
1007
1008	<A NAME="getFloat(java.lang.String, float)"><!-- --></A><H3>
1009	getFloat</H3>
1010	<PRE>
1011	public float <B>getFloat</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name,
1012	float defaultValue)</PRE>
1013	<DL>
1014	<DD>Get the value of the <code>name</code> property as a <code>float</code>.
1015	If no such property is specified, or if the specified value is not a valid
1016	<code>float</code>, then <code>defaultValue</code> is returned.
1017	<P>
1018	<DD><DL>
1019	</DL>
1020	</DD>
1021	<DD><DL>
1022	<DT><B>Parameters:</B><DD><CODE>name</CODE> - property name.<DD><CODE>defaultValue</CODE> - default value.
1023	<DT><B>Returns:</B><DD>property value as a <code>float</code>,
1024	or <code>defaultValue</code>.</DL>
1025	</DD>
1026	</DL>
1027	<HR>
1028
1029	<A NAME="setFloat(java.lang.String, float)"><!-- --></A><H3>
1030	setFloat</H3>
1031	<PRE>
1032	public void <B>setFloat</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name,
1033	float value)</PRE>
1034	<DL>
1035	<DD>Set the value of the <code>name</code> property to a <code>float</code>.
1036	<P>
1037	<DD><DL>
1038	</DL>
1039	</DD>
1040	<DD><DL>
1041	<DT><B>Parameters:</B><DD><CODE>name</CODE> - property name.<DD><CODE>value</CODE> - property value.</DL>
1042	</DD>
1043	</DL>
1044	<HR>
1045
1046	<A NAME="getBoolean(java.lang.String, boolean)"><!-- --></A><H3>
1047	getBoolean</H3>
1048	<PRE>
1049	public boolean <B>getBoolean</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name,
1050	boolean defaultValue)</PRE>
1051	<DL>
1052	<DD>Get the value of the <code>name</code> property as a <code>boolean</code>.
1053	If no such property is specified, or if the specified value is not a valid
1054	<code>boolean</code>, then <code>defaultValue</code> is returned.
1055	<P>
1056	<DD><DL>
1057	</DL>
1058	</DD>
1059	<DD><DL>
1060	<DT><B>Parameters:</B><DD><CODE>name</CODE> - property name.<DD><CODE>defaultValue</CODE> - default value.
1061	<DT><B>Returns:</B><DD>property value as a <code>boolean</code>,
1062	or <code>defaultValue</code>.</DL>
1063	</DD>
1064	</DL>
1065	<HR>
1066
1067	<A NAME="setBoolean(java.lang.String, boolean)"><!-- --></A><H3>
1068	setBoolean</H3>
1069	<PRE>
1070	public void <B>setBoolean</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name,
1071	boolean value)</PRE>
1072	<DL>
1073	<DD>Set the value of the <code>name</code> property to a <code>boolean</code>.
1074	<P>
1075	<DD><DL>
1076	</DL>
1077	</DD>
1078	<DD><DL>
1079	<DT><B>Parameters:</B><DD><CODE>name</CODE> - property name.<DD><CODE>value</CODE> - <code>boolean</code> value of the property.</DL>
1080	</DD>
1081	</DL>
1082	<HR>
1083
1084	<A NAME="setBooleanIfUnset(java.lang.String, boolean)"><!-- --></A><H3>
1085	setBooleanIfUnset</H3>
1086	<PRE>
1087	public void <B>setBooleanIfUnset</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name,
1088	boolean value)</PRE>
1089	<DL>
1090	<DD>Set the given property, if it is currently unset.
1091	<P>
1092	<DD><DL>
1093	</DL>
1094	</DD>
1095	<DD><DL>
1096	<DT><B>Parameters:</B><DD><CODE>name</CODE> - property name<DD><CODE>value</CODE> - new value</DL>
1097	</DD>
1098	</DL>
1099	<HR>
1100
1101	<A NAME="getRange(java.lang.String, java.lang.String)"><!-- --></A><H3>
1102	getRange</H3>
1103	<PRE>
1104	public <A HREF="../../../../org/apache/hadoop/conf/Configuration.IntegerRanges.html" title="class in org.apache.hadoop.conf">Configuration.IntegerRanges</A> <B>getRange</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name,
1105	<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> defaultValue)</PRE>
1106	<DL>
1107	<DD>Parse the given attribute as a set of integer ranges
1108	<P>
1109	<DD><DL>
1110	</DL>
1111	</DD>
1112	<DD><DL>
1113	<DT><B>Parameters:</B><DD><CODE>name</CODE> - the attribute name<DD><CODE>defaultValue</CODE> - the default value if it is not set
1114	<DT><B>Returns:</B><DD>a new set of ranges from the configured value</DL>
1115	</DD>
1116	</DL>
1117	<HR>
1118
1119	<A NAME="getStringCollection(java.lang.String)"><!-- --></A><H3>
1120	getStringCollection</H3>
1121	<PRE>
1122	public <A HREF="http://java.sun.com/javase/6/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</A><<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>> <B>getStringCollection</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name)</PRE>
1123	<DL>
1124	<DD>Get the comma delimited values of the <code>name</code> property as
1125	a collection of <code>String</code>s.
1126	If no such property is specified then empty collection is returned.
1127	<p>
1128	This is an optimized version of <A HREF="../../../../org/apache/hadoop/conf/Configuration.html#getStrings(java.lang.String)"><CODE>getStrings(String)</CODE></A>
1129	<P>
1130	<DD><DL>
1131	</DL>
1132	</DD>
1133	<DD><DL>
1134	<DT><B>Parameters:</B><DD><CODE>name</CODE> - property name.
1135	<DT><B>Returns:</B><DD>property value as a collection of <code>String</code>s.</DL>
1136	</DD>
1137	</DL>
1138	<HR>
1139
1140	<A NAME="getStrings(java.lang.String)"><!-- --></A><H3>
1141	getStrings</H3>
1142	<PRE>
1143	public <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>[] <B>getStrings</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name)</PRE>
1144	<DL>
1145	<DD>Get the comma delimited values of the <code>name</code> property as
1146	an array of <code>String</code>s.
1147	If no such property is specified then <code>null</code> is returned.
1148	<P>
1149	<DD><DL>
1150	</DL>
1151	</DD>
1152	<DD><DL>
1153	<DT><B>Parameters:</B><DD><CODE>name</CODE> - property name.
1154	<DT><B>Returns:</B><DD>property value as an array of <code>String</code>s,
1155	or <code>null</code>.</DL>
1156	</DD>
1157	</DL>
1158	<HR>
1159
1160	<A NAME="getStrings(java.lang.String, java.lang.String...)"><!-- --></A><H3>
1161	getStrings</H3>
1162	<PRE>
1163	public <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>[] <B>getStrings</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name,
1164	<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>... defaultValue)</PRE>
1165	<DL>
1166	<DD>Get the comma delimited values of the <code>name</code> property as
1167	an array of <code>String</code>s.
1168	If no such property is specified then default value is returned.
1169	<P>
1170	<DD><DL>
1171	</DL>
1172	</DD>
1173	<DD><DL>
1174	<DT><B>Parameters:</B><DD><CODE>name</CODE> - property name.<DD><CODE>defaultValue</CODE> - The default value
1175	<DT><B>Returns:</B><DD>property value as an array of <code>String</code>s,
1176	or default value.</DL>
1177	</DD>
1178	</DL>
1179	<HR>
1180
1181	<A NAME="setStrings(java.lang.String, java.lang.String...)"><!-- --></A><H3>
1182	setStrings</H3>
1183	<PRE>
1184	public void <B>setStrings</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name,
1185	<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>... values)</PRE>
1186	<DL>
1187	<DD>Set the array of string values for the <code>name</code> property as
1188	as comma delimited values.
1189	<P>
1190	<DD><DL>
1191	</DL>
1192	</DD>
1193	<DD><DL>
1194	<DT><B>Parameters:</B><DD><CODE>name</CODE> - property name.<DD><CODE>values</CODE> - The values</DL>
1195	</DD>
1196	</DL>
1197	<HR>
1198
1199	<A NAME="getClassByName(java.lang.String)"><!-- --></A><H3>
1200	getClassByName</H3>
1201	<PRE>
1202	public <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><?> <B>getClassByName</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name)
1203	throws <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/ClassNotFoundException.html?is-external=true" title="class or interface in java.lang">ClassNotFoundException</A></PRE>
1204	<DL>
1205	<DD>Load a class by name.
1206	<P>
1207	<DD><DL>
1208	</DL>
1209	</DD>
1210	<DD><DL>
1211	<DT><B>Parameters:</B><DD><CODE>name</CODE> - the class name.
1212	<DT><B>Returns:</B><DD>the class object.
1213	<DT><B>Throws:</B>
1214	<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/ClassNotFoundException.html?is-external=true" title="class or interface in java.lang">ClassNotFoundException</A></CODE> - if the class is not found.</DL>
1215	</DD>
1216	</DL>
1217	<HR>
1218
1219	<A NAME="getClasses(java.lang.String, java.lang.Class...)"><!-- --></A><H3>
1220	getClasses</H3>
1221	<PRE>
1222	public <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><?>[] <B>getClasses</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name,
1223	<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><?>... defaultValue)</PRE>
1224	<DL>
1225	<DD>Get the value of the <code>name</code> property
1226	as an array of <code>Class</code>.
1227	The value of the property specifies a list of comma separated class names.
1228	If no such property is specified, then <code>defaultValue</code> is
1229	returned.
1230	<P>
1231	<DD><DL>
1232	</DL>
1233	</DD>
1234	<DD><DL>
1235	<DT><B>Parameters:</B><DD><CODE>name</CODE> - the property name.<DD><CODE>defaultValue</CODE> - default value.
1236	<DT><B>Returns:</B><DD>property value as a <code>Class[]</code>,
1237	or <code>defaultValue</code>.</DL>
1238	</DD>
1239	</DL>
1240	<HR>
1241
1242	<A NAME="getClass(java.lang.String, java.lang.Class)"><!-- --></A><H3>
1243	getClass</H3>
1244	<PRE>
1245	public <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><?> <B>getClass</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name,
1246	<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><?> defaultValue)</PRE>
1247	<DL>
1248	<DD>Get the value of the <code>name</code> property as a <code>Class</code>.
1249	If no such property is specified, then <code>defaultValue</code> is
1250	returned.
1251	<P>
1252	<DD><DL>
1253	</DL>
1254	</DD>
1255	<DD><DL>
1256	<DT><B>Parameters:</B><DD><CODE>name</CODE> - the class name.<DD><CODE>defaultValue</CODE> - default value.
1257	<DT><B>Returns:</B><DD>property value as a <code>Class</code>,
1258	or <code>defaultValue</code>.</DL>
1259	</DD>
1260	</DL>
1261	<HR>
1262
1263	<A NAME="getClass(java.lang.String, java.lang.Class, java.lang.Class)"><!-- --></A><H3>
1264	getClass</H3>
1265	<PRE>
1266	public <U> <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends U> <B>getClass</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name,
1267	<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><? extends U> defaultValue,
1268	<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><U> xface)</PRE>
1269	<DL>
1270	<DD>Get the value of the <code>name</code> property as a <code>Class</code>
1271	implementing the interface specified by <code>xface</code>.
1272
1273	If no such property is specified, then <code>defaultValue</code> is
1274	returned.
1275
1276	An exception is thrown if the returned class does not implement the named
1277	interface.
1278	<P>
1279	<DD><DL>
1280	</DL>
1281	</DD>
1282	<DD><DL>
1283	<DT><B>Parameters:</B><DD><CODE>name</CODE> - the class name.<DD><CODE>defaultValue</CODE> - default value.<DD><CODE>xface</CODE> - the interface implemented by the named class.
1284	<DT><B>Returns:</B><DD>property value as a <code>Class</code>,
1285	or <code>defaultValue</code>.</DL>
1286	</DD>
1287	</DL>
1288	<HR>
1289
1290	<A NAME="setClass(java.lang.String, java.lang.Class, java.lang.Class)"><!-- --></A><H3>
1291	setClass</H3>
1292	<PRE>
1293	public void <B>setClass</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name,
1294	<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><?> theClass,
1295	<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</A><?> xface)</PRE>
1296	<DL>
1297	<DD>Set the value of the <code>name</code> property to the name of a
1298	<code>theClass</code> implementing the given interface <code>xface</code>.
1299
1300	An exception is thrown if <code>theClass</code> does not implement the
1301	interface <code>xface</code>.
1302	<P>
1303	<DD><DL>
1304	</DL>
1305	</DD>
1306	<DD><DL>
1307	<DT><B>Parameters:</B><DD><CODE>name</CODE> - property name.<DD><CODE>theClass</CODE> - property value.<DD><CODE>xface</CODE> - the interface implemented by the named class.</DL>
1308	</DD>
1309	</DL>
1310	<HR>
1311
1312	<A NAME="getLocalPath(java.lang.String, java.lang.String)"><!-- --></A><H3>
1313	getLocalPath</H3>
1314	<PRE>
1315	public <A HREF="../../../../org/apache/hadoop/fs/Path.html" title="class in org.apache.hadoop.fs">Path</A> <B>getLocalPath</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> dirsProp,
1316	<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> path)
1317	throws <A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE>
1318	<DL>
1319	<DD>Get a local file under a directory named by <i>dirsProp</i> with
1320	the given <i>path</i>. If <i>dirsProp</i> contains multiple directories,
1321	then one is chosen based on <i>path</i>'s hash code. If the selected
1322	directory does not exist, an attempt is made to create it.
1323	<P>
1324	<DD><DL>
1325	</DL>
1326	</DD>
1327	<DD><DL>
1328	<DT><B>Parameters:</B><DD><CODE>dirsProp</CODE> - directory in which to locate the file.<DD><CODE>path</CODE> - file-path.
1329	<DT><B>Returns:</B><DD>local file under the directory with the given path.
1330	<DT><B>Throws:</B>
1331	<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE></DL>
1332	</DD>
1333	</DL>
1334	<HR>
1335
1336	<A NAME="getFile(java.lang.String, java.lang.String)"><!-- --></A><H3>
1337	getFile</H3>
1338	<PRE>
1339	public <A HREF="http://java.sun.com/javase/6/docs/api/java/io/File.html?is-external=true" title="class or interface in java.io">File</A> <B>getFile</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> dirsProp,
1340	<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> path)
1341	throws <A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE>
1342	<DL>
1343	<DD>Get a local file name under a directory named in <i>dirsProp</i> with
1344	the given <i>path</i>. If <i>dirsProp</i> contains multiple directories,
1345	then one is chosen based on <i>path</i>'s hash code. If the selected
1346	directory does not exist, an attempt is made to create it.
1347	<P>
1348	<DD><DL>
1349	</DL>
1350	</DD>
1351	<DD><DL>
1352	<DT><B>Parameters:</B><DD><CODE>dirsProp</CODE> - directory in which to locate the file.<DD><CODE>path</CODE> - file-path.
1353	<DT><B>Returns:</B><DD>local file under the directory with the given path.
1354	<DT><B>Throws:</B>
1355	<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE></DL>
1356	</DD>
1357	</DL>
1358	<HR>
1359
1360	<A NAME="getResource(java.lang.String)"><!-- --></A><H3>
1361	getResource</H3>
1362	<PRE>
1363	public <A HREF="http://java.sun.com/javase/6/docs/api/java/net/URL.html?is-external=true" title="class or interface in java.net">URL</A> <B>getResource</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name)</PRE>
1364	<DL>
1365	<DD>Get the <A HREF="http://java.sun.com/javase/6/docs/api/java/net/URL.html?is-external=true" title="class or interface in java.net"><CODE>URL</CODE></A> for the named resource.
1366	<P>
1367	<DD><DL>
1368	</DL>
1369	</DD>
1370	<DD><DL>
1371	<DT><B>Parameters:</B><DD><CODE>name</CODE> - resource name.
1372	<DT><B>Returns:</B><DD>the url for the named resource.</DL>
1373	</DD>
1374	</DL>
1375	<HR>
1376
1377	<A NAME="getConfResourceAsInputStream(java.lang.String)"><!-- --></A><H3>
1378	getConfResourceAsInputStream</H3>
1379	<PRE>
1380	public <A HREF="http://java.sun.com/javase/6/docs/api/java/io/InputStream.html?is-external=true" title="class or interface in java.io">InputStream</A> <B>getConfResourceAsInputStream</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name)</PRE>
1381	<DL>
1382	<DD>Get an input stream attached to the configuration resource with the
1383	given <code>name</code>.
1384	<P>
1385	<DD><DL>
1386	</DL>
1387	</DD>
1388	<DD><DL>
1389	<DT><B>Parameters:</B><DD><CODE>name</CODE> - configuration resource name.
1390	<DT><B>Returns:</B><DD>an input stream attached to the resource.</DL>
1391	</DD>
1392	</DL>
1393	<HR>
1394
1395	<A NAME="getConfResourceAsReader(java.lang.String)"><!-- --></A><H3>
1396	getConfResourceAsReader</H3>
1397	<PRE>
1398	public <A HREF="http://java.sun.com/javase/6/docs/api/java/io/Reader.html?is-external=true" title="class or interface in java.io">Reader</A> <B>getConfResourceAsReader</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> name)</PRE>
1399	<DL>
1400	<DD>Get a <A HREF="http://java.sun.com/javase/6/docs/api/java/io/Reader.html?is-external=true" title="class or interface in java.io"><CODE>Reader</CODE></A> attached to the configuration resource with the
1401	given <code>name</code>.
1402	<P>
1403	<DD><DL>
1404	</DL>
1405	</DD>
1406	<DD><DL>
1407	<DT><B>Parameters:</B><DD><CODE>name</CODE> - configuration resource name.
1408	<DT><B>Returns:</B><DD>a reader attached to the resource.</DL>
1409	</DD>
1410	</DL>
1411	<HR>
1412
1413	<A NAME="size()"><!-- --></A><H3>
1414	size</H3>
1415	<PRE>
1416	public int <B>size</B>()</PRE>
1417	<DL>
1418	<DD>Return the number of keys in the configuration.
1419	<P>
1420	<DD><DL>
1421	</DL>
1422	</DD>
1423	<DD><DL>
1424
1425	<DT><B>Returns:</B><DD>number of keys in the configuration.</DL>
1426	</DD>
1427	</DL>
1428	<HR>
1429
1430	<A NAME="clear()"><!-- --></A><H3>
1431	clear</H3>
1432	<PRE>
1433	public void <B>clear</B>()</PRE>
1434	<DL>
1435	<DD>Clears all keys from the configuration.
1436	<P>
1437	<DD><DL>
1438	</DL>
1439	</DD>
1440	<DD><DL>
1441	</DL>
1442	</DD>
1443	</DL>
1444	<HR>
1445
1446	<A NAME="iterator()"><!-- --></A><H3>
1447	iterator</H3>
1448	<PRE>
1449	public <A HREF="http://java.sun.com/javase/6/docs/api/java/util/Iterator.html?is-external=true" title="class or interface in java.util">Iterator</A><<A HREF="http://java.sun.com/javase/6/docs/api/java/util/Map.Entry.html?is-external=true" title="class or interface in java.util">Map.Entry</A><<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>,<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>>> <B>iterator</B>()</PRE>
1450	<DL>
1451	<DD>Get an <A HREF="http://java.sun.com/javase/6/docs/api/java/util/Iterator.html?is-external=true" title="class or interface in java.util"><CODE>Iterator</CODE></A> to go through the list of <code>String</code>
1452	key-value pairs in the configuration.
1453	<P>
1454	<DD><DL>
1455	<DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Iterable.html?is-external=true#iterator()" title="class or interface in java.lang">iterator</A></CODE> in interface <CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Iterable.html?is-external=true" title="class or interface in java.lang">Iterable</A><<A HREF="http://java.sun.com/javase/6/docs/api/java/util/Map.Entry.html?is-external=true" title="class or interface in java.util">Map.Entry</A><<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>,<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>>></CODE></DL>
1456	</DD>
1457	<DD><DL>
1458
1459	<DT><B>Returns:</B><DD>an iterator over the entries.</DL>
1460	</DD>
1461	</DL>
1462	<HR>
1463
1464	<A NAME="writeXml(java.io.OutputStream)"><!-- --></A><H3>
1465	writeXml</H3>
1466	<PRE>
1467	public void <B>writeXml</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/io/OutputStream.html?is-external=true" title="class or interface in java.io">OutputStream</A> out)
1468	throws <A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE>
1469	<DL>
1470	<DD>Write out the non-default properties in this configuration to the give
1471	<A HREF="http://java.sun.com/javase/6/docs/api/java/io/OutputStream.html?is-external=true" title="class or interface in java.io"><CODE>OutputStream</CODE></A>.
1472	<P>
1473	<DD><DL>
1474	</DL>
1475	</DD>
1476	<DD><DL>
1477	<DT><B>Parameters:</B><DD><CODE>out</CODE> - the output stream to write to.
1478	<DT><B>Throws:</B>
1479	<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE></DL>
1480	</DD>
1481	</DL>
1482	<HR>
1483
1484	<A NAME="getClassLoader()"><!-- --></A><H3>
1485	getClassLoader</H3>
1486	<PRE>
1487	public <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/ClassLoader.html?is-external=true" title="class or interface in java.lang">ClassLoader</A> <B>getClassLoader</B>()</PRE>
1488	<DL>
1489	<DD>Get the <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/ClassLoader.html?is-external=true" title="class or interface in java.lang"><CODE>ClassLoader</CODE></A> for this job.
1490	<P>
1491	<DD><DL>
1492	</DL>
1493	</DD>
1494	<DD><DL>
1495
1496	<DT><B>Returns:</B><DD>the correct class loader.</DL>
1497	</DD>
1498	</DL>
1499	<HR>
1500
1501	<A NAME="setClassLoader(java.lang.ClassLoader)"><!-- --></A><H3>
1502	setClassLoader</H3>
1503	<PRE>
1504	public void <B>setClassLoader</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/ClassLoader.html?is-external=true" title="class or interface in java.lang">ClassLoader</A> classLoader)</PRE>
1505	<DL>
1506	<DD>Set the class loader that will be used to load the various objects.
1507	<P>
1508	<DD><DL>
1509	</DL>
1510	</DD>
1511	<DD><DL>
1512	<DT><B>Parameters:</B><DD><CODE>classLoader</CODE> - the new class loader.</DL>
1513	</DD>
1514	</DL>
1515	<HR>
1516
1517	<A NAME="toString()"><!-- --></A><H3>
1518	toString</H3>
1519	<PRE>
1520	public <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>toString</B>()</PRE>
1521	<DL>
1522	<DD><DL>
1523	<DT><B>Overrides:</B><DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang">toString</A></CODE> in class <CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A></CODE></DL>
1524	</DD>
1525	<DD><DL>
1526	</DL>
1527	</DD>
1528	</DL>
1529	<HR>
1530
1531	<A NAME="setQuietMode(boolean)"><!-- --></A><H3>
1532	setQuietMode</H3>
1533	<PRE>
1534	public void <B>setQuietMode</B>(boolean quietmode)</PRE>
1535	<DL>
1536	<DD>Set the quietness-mode.
1537
1538	In the quiet-mode, error and informational messages might not be logged.
1539	<P>
1540	<DD><DL>
1541	</DL>
1542	</DD>
1543	<DD><DL>
1544	<DT><B>Parameters:</B><DD><CODE>quietmode</CODE> - <code>true</code> to set quiet-mode on, <code>false</code>
1545	to turn it off.</DL>
1546	</DD>
1547	</DL>
1548	<HR>
1549
1550	<A NAME="main(java.lang.String[])"><!-- --></A><H3>
1551	main</H3>
1552	<PRE>
1553	public static void <B>main</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>[] args)
1554	throws <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</A></PRE>
1555	<DL>
1556	<DD>For debugging. List non-default properties to the terminal and exit.
1557	<P>
1558	<DD><DL>
1559	</DL>
1560	</DD>
1561	<DD><DL>
1562
1563	<DT><B>Throws:</B>
1564	<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</A></CODE></DL>
1565	</DD>
1566	</DL>
1567	<HR>
1568
1569	<A NAME="readFields(java.io.DataInput)"><!-- --></A><H3>
1570	readFields</H3>
1571	<PRE>
1572	public void <B>readFields</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/io/DataInput.html?is-external=true" title="class or interface in java.io">DataInput</A> in)
1573	throws <A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE>
1574	<DL>
1575	<DD><B>Description copied from interface: <CODE><A HREF="../../../../org/apache/hadoop/io/Writable.html#readFields(java.io.DataInput)">Writable</A></CODE></B></DD>
1576	<DD>Deserialize the fields of this object from <code>in</code>.
1577
1578	<p>For efficiency, implementations should attempt to re-use storage in the
1579	existing object where possible.</p>
1580	<P>
1581	<DD><DL>
1582	<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/apache/hadoop/io/Writable.html#readFields(java.io.DataInput)">readFields</A></CODE> in interface <CODE><A HREF="../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A></CODE></DL>
1583	</DD>
1584	<DD><DL>
1585	<DT><B>Parameters:</B><DD><CODE>in</CODE> - <code>DataInput</code> to deseriablize this object from.
1586	<DT><B>Throws:</B>
1587	<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE></DL>
1588	</DD>
1589	</DL>
1590	<HR>
1591
1592	<A NAME="write(java.io.DataOutput)"><!-- --></A><H3>
1593	write</H3>
1594	<PRE>
1595	public void <B>write</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/io/DataOutput.html?is-external=true" title="class or interface in java.io">DataOutput</A> out)
1596	throws <A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE>
1597	<DL>
1598	<DD><B>Description copied from interface: <CODE><A HREF="../../../../org/apache/hadoop/io/Writable.html#write(java.io.DataOutput)">Writable</A></CODE></B></DD>
1599	<DD>Serialize the fields of this object to <code>out</code>.
1600	<P>
1601	<DD><DL>
1602	<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/apache/hadoop/io/Writable.html#write(java.io.DataOutput)">write</A></CODE> in interface <CODE><A HREF="../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A></CODE></DL>
1603	</DD>
1604	<DD><DL>
1605	<DT><B>Parameters:</B><DD><CODE>out</CODE> - <code>DataOuput</code> to serialize this object into.
1606	<DT><B>Throws:</B>
1607	<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE></DL>
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1641	<A HREF="../../../../org/apache/hadoop/conf/Configurable.html" title="interface in org.apache.hadoop.conf"><B>PREV CLASS</B></A>
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