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7ObjectWritable (Hadoop 0.20.1 API)
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40  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A>&nbsp;</TD>
41  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A>&nbsp;</TD>
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79  SUMMARY:&nbsp;NESTED&nbsp;|&nbsp;FIELD&nbsp;|&nbsp;<A HREF="#constructor_summary">CONSTR</A>&nbsp;|&nbsp;<A HREF="#method_summary">METHOD</A></FONT></TD>
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87<HR>
88<!-- ======== START OF CLASS DATA ======== -->
89<H2>
90<FONT SIZE="-1">
91org.apache.hadoop.io</FONT>
92<BR>
93Class ObjectWritable</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.io.ObjectWritable</B>
97</PRE>
98<DL>
99<DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../../../org/apache/hadoop/conf/Configurable.html" title="interface in org.apache.hadoop.conf">Configurable</A>, <A HREF="../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A></DD>
100</DL>
101<HR>
102<DL>
103<DT><PRE>public class <B>ObjectWritable</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="../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A>, <A HREF="../../../../org/apache/hadoop/conf/Configurable.html" title="interface in org.apache.hadoop.conf">Configurable</A></DL>
104</PRE>
105
106<P>
107A polymorphic Writable that writes an instance with it's class name.
108 Handles arrays, strings and primitive types without a Writable wrapper.
109<P>
110
111<P>
112<HR>
113
114<P>
115
116<!-- ======== CONSTRUCTOR SUMMARY ======== -->
117
118<A NAME="constructor_summary"><!-- --></A>
119<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
120<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
121<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
122<B>Constructor Summary</B></FONT></TH>
123</TR>
124<TR BGCOLOR="white" CLASS="TableRowColor">
125<TD><CODE><B><A HREF="../../../../org/apache/hadoop/io/ObjectWritable.html#ObjectWritable()">ObjectWritable</A></B>()</CODE>
126
127<BR>
128&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
129</TR>
130<TR BGCOLOR="white" CLASS="TableRowColor">
131<TD><CODE><B><A HREF="../../../../org/apache/hadoop/io/ObjectWritable.html#ObjectWritable(java.lang.Class, java.lang.Object)">ObjectWritable</A></B>(<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>&nbsp;declaredClass,
132               <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>&nbsp;instance)</CODE>
133
134<BR>
135&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
136</TR>
137<TR BGCOLOR="white" CLASS="TableRowColor">
138<TD><CODE><B><A HREF="../../../../org/apache/hadoop/io/ObjectWritable.html#ObjectWritable(java.lang.Object)">ObjectWritable</A></B>(<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>&nbsp;instance)</CODE>
139
140<BR>
141&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
142</TR>
143</TABLE>
144&nbsp;
145<!-- ========== METHOD SUMMARY =========== -->
146
147<A NAME="method_summary"><!-- --></A>
148<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
149<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
150<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
151<B>Method Summary</B></FONT></TH>
152</TR>
153<TR BGCOLOR="white" CLASS="TableRowColor">
154<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
155<CODE>&nbsp;<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></FONT></TD>
156<TD><CODE><B><A HREF="../../../../org/apache/hadoop/io/ObjectWritable.html#get()">get</A></B>()</CODE>
157
158<BR>
159&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Return the instance, or null if none.</TD>
160</TR>
161<TR BGCOLOR="white" CLASS="TableRowColor">
162<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
163<CODE>&nbsp;<A HREF="../../../../org/apache/hadoop/conf/Configuration.html" title="class in org.apache.hadoop.conf">Configuration</A></CODE></FONT></TD>
164<TD><CODE><B><A HREF="../../../../org/apache/hadoop/io/ObjectWritable.html#getConf()">getConf</A></B>()</CODE>
165
166<BR>
167&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Return the configuration used by this object.</TD>
168</TR>
169<TR BGCOLOR="white" CLASS="TableRowColor">
170<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
171<CODE>&nbsp;<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>
172<TD><CODE><B><A HREF="../../../../org/apache/hadoop/io/ObjectWritable.html#getDeclaredClass()">getDeclaredClass</A></B>()</CODE>
173
174<BR>
175&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Return the class this is meant to be.</TD>
176</TR>
177<TR BGCOLOR="white" CLASS="TableRowColor">
178<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
179<CODE>&nbsp;void</CODE></FONT></TD>
180<TD><CODE><B><A HREF="../../../../org/apache/hadoop/io/ObjectWritable.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>&nbsp;in)</CODE>
181
182<BR>
183&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Deserialize the fields of this object from <code>in</code>.</TD>
184</TR>
185<TR BGCOLOR="white" CLASS="TableRowColor">
186<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
187<CODE>static&nbsp;<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></FONT></TD>
188<TD><CODE><B><A HREF="../../../../org/apache/hadoop/io/ObjectWritable.html#readObject(java.io.DataInput, org.apache.hadoop.conf.Configuration)">readObject</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>&nbsp;in,
189           <A HREF="../../../../org/apache/hadoop/conf/Configuration.html" title="class in org.apache.hadoop.conf">Configuration</A>&nbsp;conf)</CODE>
190
191<BR>
192&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Read a <A HREF="../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io"><CODE>Writable</CODE></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"><CODE>String</CODE></A>, primitive type, or an array of
193 the preceding.</TD>
194</TR>
195<TR BGCOLOR="white" CLASS="TableRowColor">
196<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
197<CODE>static&nbsp;<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></FONT></TD>
198<TD><CODE><B><A HREF="../../../../org/apache/hadoop/io/ObjectWritable.html#readObject(java.io.DataInput, org.apache.hadoop.io.ObjectWritable, org.apache.hadoop.conf.Configuration)">readObject</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>&nbsp;in,
199           <A HREF="../../../../org/apache/hadoop/io/ObjectWritable.html" title="class in org.apache.hadoop.io">ObjectWritable</A>&nbsp;objectWritable,
200           <A HREF="../../../../org/apache/hadoop/conf/Configuration.html" title="class in org.apache.hadoop.conf">Configuration</A>&nbsp;conf)</CODE>
201
202<BR>
203&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Read a <A HREF="../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io"><CODE>Writable</CODE></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"><CODE>String</CODE></A>, primitive type, or an array of
204 the preceding.</TD>
205</TR>
206<TR BGCOLOR="white" CLASS="TableRowColor">
207<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
208<CODE>&nbsp;void</CODE></FONT></TD>
209<TD><CODE><B><A HREF="../../../../org/apache/hadoop/io/ObjectWritable.html#set(java.lang.Object)">set</A></B>(<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>&nbsp;instance)</CODE>
210
211<BR>
212&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Reset the instance.</TD>
213</TR>
214<TR BGCOLOR="white" CLASS="TableRowColor">
215<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
216<CODE>&nbsp;void</CODE></FONT></TD>
217<TD><CODE><B><A HREF="../../../../org/apache/hadoop/io/ObjectWritable.html#setConf(org.apache.hadoop.conf.Configuration)">setConf</A></B>(<A HREF="../../../../org/apache/hadoop/conf/Configuration.html" title="class in org.apache.hadoop.conf">Configuration</A>&nbsp;conf)</CODE>
218
219<BR>
220&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Set the configuration to be used by this object.</TD>
221</TR>
222<TR BGCOLOR="white" CLASS="TableRowColor">
223<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
224<CODE>&nbsp;<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>
225<TD><CODE><B><A HREF="../../../../org/apache/hadoop/io/ObjectWritable.html#toString()">toString</A></B>()</CODE>
226
227<BR>
228&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
229</TR>
230<TR BGCOLOR="white" CLASS="TableRowColor">
231<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
232<CODE>&nbsp;void</CODE></FONT></TD>
233<TD><CODE><B><A HREF="../../../../org/apache/hadoop/io/ObjectWritable.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>&nbsp;out)</CODE>
234
235<BR>
236&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Serialize the fields of this object to <code>out</code>.</TD>
237</TR>
238<TR BGCOLOR="white" CLASS="TableRowColor">
239<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
240<CODE>static&nbsp;void</CODE></FONT></TD>
241<TD><CODE><B><A HREF="../../../../org/apache/hadoop/io/ObjectWritable.html#writeObject(java.io.DataOutput, java.lang.Object, java.lang.Class, org.apache.hadoop.conf.Configuration)">writeObject</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>&nbsp;out,
242            <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>&nbsp;instance,
243            <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>&nbsp;declaredClass,
244            <A HREF="../../../../org/apache/hadoop/conf/Configuration.html" title="class in org.apache.hadoop.conf">Configuration</A>&nbsp;conf)</CODE>
245
246<BR>
247&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Write a <A HREF="../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io"><CODE>Writable</CODE></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"><CODE>String</CODE></A>, primitive type, or an array of
248 the preceding.</TD>
249</TR>
250</TABLE>
251&nbsp;<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
252<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
253<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
254<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>
255</TR>
256<TR BGCOLOR="white" CLASS="TableRowColor">
257<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>
258</TR>
259</TABLE>
260&nbsp;
261<P>
262
263<!-- ========= CONSTRUCTOR DETAIL ======== -->
264
265<A NAME="constructor_detail"><!-- --></A>
266<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
267<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
268<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
269<B>Constructor Detail</B></FONT></TH>
270</TR>
271</TABLE>
272
273<A NAME="ObjectWritable()"><!-- --></A><H3>
274ObjectWritable</H3>
275<PRE>
276public <B>ObjectWritable</B>()</PRE>
277<DL>
278</DL>
279<HR>
280
281<A NAME="ObjectWritable(java.lang.Object)"><!-- --></A><H3>
282ObjectWritable</H3>
283<PRE>
284public <B>ObjectWritable</B>(<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>&nbsp;instance)</PRE>
285<DL>
286</DL>
287<HR>
288
289<A NAME="ObjectWritable(java.lang.Class, java.lang.Object)"><!-- --></A><H3>
290ObjectWritable</H3>
291<PRE>
292public <B>ObjectWritable</B>(<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>&nbsp;declaredClass,
293                      <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>&nbsp;instance)</PRE>
294<DL>
295</DL>
296
297<!-- ============ METHOD DETAIL ========== -->
298
299<A NAME="method_detail"><!-- --></A>
300<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
301<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
302<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
303<B>Method Detail</B></FONT></TH>
304</TR>
305</TABLE>
306
307<A NAME="get()"><!-- --></A><H3>
308get</H3>
309<PRE>
310public <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>get</B>()</PRE>
311<DL>
312<DD>Return the instance, or null if none.
313<P>
314<DD><DL>
315</DL>
316</DD>
317<DD><DL>
318</DL>
319</DD>
320</DL>
321<HR>
322
323<A NAME="getDeclaredClass()"><!-- --></A><H3>
324getDeclaredClass</H3>
325<PRE>
326public <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>getDeclaredClass</B>()</PRE>
327<DL>
328<DD>Return the class this is meant to be.
329<P>
330<DD><DL>
331</DL>
332</DD>
333<DD><DL>
334</DL>
335</DD>
336</DL>
337<HR>
338
339<A NAME="set(java.lang.Object)"><!-- --></A><H3>
340set</H3>
341<PRE>
342public void <B>set</B>(<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>&nbsp;instance)</PRE>
343<DL>
344<DD>Reset the instance.
345<P>
346<DD><DL>
347</DL>
348</DD>
349<DD><DL>
350</DL>
351</DD>
352</DL>
353<HR>
354
355<A NAME="toString()"><!-- --></A><H3>
356toString</H3>
357<PRE>
358public <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>
359<DL>
360<DD><DL>
361<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>
362</DD>
363<DD><DL>
364</DL>
365</DD>
366</DL>
367<HR>
368
369<A NAME="readFields(java.io.DataInput)"><!-- --></A><H3>
370readFields</H3>
371<PRE>
372public 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>&nbsp;in)
373                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>
374<DL>
375<DD><B>Description copied from interface: <CODE><A HREF="../../../../org/apache/hadoop/io/Writable.html#readFields(java.io.DataInput)">Writable</A></CODE></B></DD>
376<DD>Deserialize the fields of this object from <code>in</code>. 
377 
378 <p>For efficiency, implementations should attempt to re-use storage in the
379 existing object where possible.</p>
380<P>
381<DD><DL>
382<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>
383</DD>
384<DD><DL>
385<DT><B>Parameters:</B><DD><CODE>in</CODE> - <code>DataInput</code> to deseriablize this object from.
386<DT><B>Throws:</B>
387<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>
388</DD>
389</DL>
390<HR>
391
392<A NAME="write(java.io.DataOutput)"><!-- --></A><H3>
393write</H3>
394<PRE>
395public 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>&nbsp;out)
396           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>
397<DL>
398<DD><B>Description copied from interface: <CODE><A HREF="../../../../org/apache/hadoop/io/Writable.html#write(java.io.DataOutput)">Writable</A></CODE></B></DD>
399<DD>Serialize the fields of this object to <code>out</code>.
400<P>
401<DD><DL>
402<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>
403</DD>
404<DD><DL>
405<DT><B>Parameters:</B><DD><CODE>out</CODE> - <code>DataOuput</code> to serialize this object into.
406<DT><B>Throws:</B>
407<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>
408</DD>
409</DL>
410<HR>
411
412<A NAME="writeObject(java.io.DataOutput, java.lang.Object, java.lang.Class, org.apache.hadoop.conf.Configuration)"><!-- --></A><H3>
413writeObject</H3>
414<PRE>
415public static void <B>writeObject</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>&nbsp;out,
416                               <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>&nbsp;instance,
417                               <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>&nbsp;declaredClass,
418                               <A HREF="../../../../org/apache/hadoop/conf/Configuration.html" title="class in org.apache.hadoop.conf">Configuration</A>&nbsp;conf)
419                        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>
420<DL>
421<DD>Write a <A HREF="../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io"><CODE>Writable</CODE></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"><CODE>String</CODE></A>, primitive type, or an array of
422 the preceding.
423<P>
424<DD><DL>
425</DL>
426</DD>
427<DD><DL>
428
429<DT><B>Throws:</B>
430<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>
431</DD>
432</DL>
433<HR>
434
435<A NAME="readObject(java.io.DataInput, org.apache.hadoop.conf.Configuration)"><!-- --></A><H3>
436readObject</H3>
437<PRE>
438public static <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>readObject</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>&nbsp;in,
439                                <A HREF="../../../../org/apache/hadoop/conf/Configuration.html" title="class in org.apache.hadoop.conf">Configuration</A>&nbsp;conf)
440                         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>
441<DL>
442<DD>Read a <A HREF="../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io"><CODE>Writable</CODE></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"><CODE>String</CODE></A>, primitive type, or an array of
443 the preceding.
444<P>
445<DD><DL>
446</DL>
447</DD>
448<DD><DL>
449
450<DT><B>Throws:</B>
451<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>
452</DD>
453</DL>
454<HR>
455
456<A NAME="readObject(java.io.DataInput, org.apache.hadoop.io.ObjectWritable, org.apache.hadoop.conf.Configuration)"><!-- --></A><H3>
457readObject</H3>
458<PRE>
459public static <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>readObject</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>&nbsp;in,
460                                <A HREF="../../../../org/apache/hadoop/io/ObjectWritable.html" title="class in org.apache.hadoop.io">ObjectWritable</A>&nbsp;objectWritable,
461                                <A HREF="../../../../org/apache/hadoop/conf/Configuration.html" title="class in org.apache.hadoop.conf">Configuration</A>&nbsp;conf)
462                         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>
463<DL>
464<DD>Read a <A HREF="../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io"><CODE>Writable</CODE></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"><CODE>String</CODE></A>, primitive type, or an array of
465 the preceding.
466<P>
467<DD><DL>
468</DL>
469</DD>
470<DD><DL>
471
472<DT><B>Throws:</B>
473<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>
474</DD>
475</DL>
476<HR>
477
478<A NAME="setConf(org.apache.hadoop.conf.Configuration)"><!-- --></A><H3>
479setConf</H3>
480<PRE>
481public void <B>setConf</B>(<A HREF="../../../../org/apache/hadoop/conf/Configuration.html" title="class in org.apache.hadoop.conf">Configuration</A>&nbsp;conf)</PRE>
482<DL>
483<DD><B>Description copied from interface: <CODE><A HREF="../../../../org/apache/hadoop/conf/Configurable.html#setConf(org.apache.hadoop.conf.Configuration)">Configurable</A></CODE></B></DD>
484<DD>Set the configuration to be used by this object.
485<P>
486<DD><DL>
487<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/apache/hadoop/conf/Configurable.html#setConf(org.apache.hadoop.conf.Configuration)">setConf</A></CODE> in interface <CODE><A HREF="../../../../org/apache/hadoop/conf/Configurable.html" title="interface in org.apache.hadoop.conf">Configurable</A></CODE></DL>
488</DD>
489<DD><DL>
490</DL>
491</DD>
492</DL>
493<HR>
494
495<A NAME="getConf()"><!-- --></A><H3>
496getConf</H3>
497<PRE>
498public <A HREF="../../../../org/apache/hadoop/conf/Configuration.html" title="class in org.apache.hadoop.conf">Configuration</A> <B>getConf</B>()</PRE>
499<DL>
500<DD><B>Description copied from interface: <CODE><A HREF="../../../../org/apache/hadoop/conf/Configurable.html#getConf()">Configurable</A></CODE></B></DD>
501<DD>Return the configuration used by this object.
502<P>
503<DD><DL>
504<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/apache/hadoop/conf/Configurable.html#getConf()">getConf</A></CODE> in interface <CODE><A HREF="../../../../org/apache/hadoop/conf/Configurable.html" title="interface in org.apache.hadoop.conf">Configurable</A></CODE></DL>
505</DD>
506<DD><DL>
507</DL>
508</DD>
509</DL>
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