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7Counters (Hadoop 0.20.1 API)
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91org.apache.hadoop.mapred</FONT>
92<BR>
93Class Counters</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.mapred.Counters</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>&lt;<A HREF="../../../../org/apache/hadoop/mapred/Counters.Group.html" title="class in org.apache.hadoop.mapred">Counters.Group</A>&gt;, <A HREF="../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A></DD>
100</DL>
101<HR>
102<B>Deprecated.</B>&nbsp;<I>Use <A HREF="../../../../org/apache/hadoop/mapreduce/Counters.html" title="class in org.apache.hadoop.mapreduce"><CODE>Counters</CODE></A> instead.</I>
103<P>
104<DL>
105<DT><PRE><FONT SIZE="-1"><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Deprecated.html?is-external=true" title="class or interface in java.lang">@Deprecated</A>
106</FONT>public class <B>Counters</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="http://java.sun.com/javase/6/docs/api/java/lang/Iterable.html?is-external=true" title="class or interface in java.lang">Iterable</A>&lt;<A HREF="../../../../org/apache/hadoop/mapred/Counters.Group.html" title="class in org.apache.hadoop.mapred">Counters.Group</A>&gt;</DL>
107</PRE>
108
109<P>
110A set of named counters.
111 
112 <p><code>Counters</code> represent global counters, defined either by the
113 Map-Reduce framework or applications. Each <code>Counter</code> can be of
114 any <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Enum.html?is-external=true" title="class or interface in java.lang"><CODE>Enum</CODE></A> type.</p>
115 
116 <p><code>Counters</code> are bunched into <A HREF="../../../../org/apache/hadoop/mapred/Counters.Group.html" title="class in org.apache.hadoop.mapred"><CODE>Counters.Group</CODE></A>s, each comprising of
117 counters from a particular <code>Enum</code> class.
118<P>
119
120<P>
121<HR>
122
123<P>
124<!-- ======== NESTED CLASS SUMMARY ======== -->
125
126<A NAME="nested_class_summary"><!-- --></A>
127<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
128<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
129<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
130<B>Nested Class Summary</B></FONT></TH>
131</TR>
132<TR BGCOLOR="white" CLASS="TableRowColor">
133<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
134<CODE>static&nbsp;class</CODE></FONT></TD>
135<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/Counters.Counter.html" title="class in org.apache.hadoop.mapred">Counters.Counter</A></B></CODE>
136
137<BR>
138&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;A counter record, comprising its name and value.</TD>
139</TR>
140<TR BGCOLOR="white" CLASS="TableRowColor">
141<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
142<CODE>static&nbsp;class</CODE></FONT></TD>
143<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/Counters.Group.html" title="class in org.apache.hadoop.mapred">Counters.Group</A></B></CODE>
144
145<BR>
146&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;<code>Group</code> of counters, comprising of counters from a particular
147  counter <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Enum.html?is-external=true" title="class or interface in java.lang"><CODE>Enum</CODE></A> class.</TD>
148</TR>
149</TABLE>
150&nbsp;
151<!-- ======== CONSTRUCTOR SUMMARY ======== -->
152
153<A NAME="constructor_summary"><!-- --></A>
154<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
155<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
156<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
157<B>Constructor Summary</B></FONT></TH>
158</TR>
159<TR BGCOLOR="white" CLASS="TableRowColor">
160<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/Counters.html#Counters()">Counters</A></B>()</CODE>
161
162<BR>
163&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;&nbsp;</TD>
164</TR>
165</TABLE>
166&nbsp;
167<!-- ========== METHOD SUMMARY =========== -->
168
169<A NAME="method_summary"><!-- --></A>
170<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
171<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
172<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
173<B>Method Summary</B></FONT></TH>
174</TR>
175<TR BGCOLOR="white" CLASS="TableRowColor">
176<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
177<CODE>&nbsp;boolean</CODE></FONT></TD>
178<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/Counters.html#equals(java.lang.Object)">equals</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;obj)</CODE>
179
180<BR>
181&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;&nbsp;</TD>
182</TR>
183<TR BGCOLOR="white" CLASS="TableRowColor">
184<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
185<CODE>&nbsp;<A HREF="../../../../org/apache/hadoop/mapred/Counters.Counter.html" title="class in org.apache.hadoop.mapred">Counters.Counter</A></CODE></FONT></TD>
186<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/Counters.html#findCounter(java.lang.Enum)">findCounter</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Enum.html?is-external=true" title="class or interface in java.lang">Enum</A>&nbsp;key)</CODE>
187
188<BR>
189&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;Find the counter for the given enum.</TD>
190</TR>
191<TR BGCOLOR="white" CLASS="TableRowColor">
192<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
193<CODE>&nbsp;<A HREF="../../../../org/apache/hadoop/mapred/Counters.Counter.html" title="class in org.apache.hadoop.mapred">Counters.Counter</A></CODE></FONT></TD>
194<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/Counters.html#findCounter(java.lang.String, int, java.lang.String)">findCounter</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>&nbsp;group,
195            int&nbsp;id,
196            <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>&nbsp;name)</CODE>
197
198<BR>
199&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;<I></I>&nbsp;</TD>
200</TR>
201<TR BGCOLOR="white" CLASS="TableRowColor">
202<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
203<CODE>&nbsp;<A HREF="../../../../org/apache/hadoop/mapred/Counters.Counter.html" title="class in org.apache.hadoop.mapred">Counters.Counter</A></CODE></FONT></TD>
204<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/Counters.html#findCounter(java.lang.String, java.lang.String)">findCounter</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>&nbsp;group,
205            <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>&nbsp;name)</CODE>
206
207<BR>
208&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;Find a counter given the group and the name.</TD>
209</TR>
210<TR BGCOLOR="white" CLASS="TableRowColor">
211<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
212<CODE>static&nbsp;<A HREF="../../../../org/apache/hadoop/mapred/Counters.html" title="class in org.apache.hadoop.mapred">Counters</A></CODE></FONT></TD>
213<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/Counters.html#fromEscapedCompactString(java.lang.String)">fromEscapedCompactString</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>&nbsp;compactString)</CODE>
214
215<BR>
216&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;Convert a stringified counter representation into a counter object.</TD>
217</TR>
218<TR BGCOLOR="white" CLASS="TableRowColor">
219<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
220<CODE>&nbsp;long</CODE></FONT></TD>
221<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/Counters.html#getCounter(java.lang.Enum)">getCounter</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Enum.html?is-external=true" title="class or interface in java.lang">Enum</A>&nbsp;key)</CODE>
222
223<BR>
224&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;Returns current value of the specified counter, or 0 if the counter
225 does not exist.</TD>
226</TR>
227<TR BGCOLOR="white" CLASS="TableRowColor">
228<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
229<CODE>&nbsp;<A HREF="../../../../org/apache/hadoop/mapred/Counters.Group.html" title="class in org.apache.hadoop.mapred">Counters.Group</A></CODE></FONT></TD>
230<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/Counters.html#getGroup(java.lang.String)">getGroup</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>&nbsp;groupName)</CODE>
231
232<BR>
233&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;Returns the named counter group, or an empty group if there is none
234 with the specified name.</TD>
235</TR>
236<TR BGCOLOR="white" CLASS="TableRowColor">
237<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
238<CODE>&nbsp;<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>&lt;<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>&gt;</CODE></FONT></TD>
239<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/Counters.html#getGroupNames()">getGroupNames</A></B>()</CODE>
240
241<BR>
242&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;Returns the names of all counter classes.</TD>
243</TR>
244<TR BGCOLOR="white" CLASS="TableRowColor">
245<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
246<CODE>&nbsp;int</CODE></FONT></TD>
247<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/Counters.html#hashCode()">hashCode</A></B>()</CODE>
248
249<BR>
250&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;&nbsp;</TD>
251</TR>
252<TR BGCOLOR="white" CLASS="TableRowColor">
253<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
254<CODE>&nbsp;void</CODE></FONT></TD>
255<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/Counters.html#incrAllCounters(org.apache.hadoop.mapred.Counters)">incrAllCounters</A></B>(<A HREF="../../../../org/apache/hadoop/mapred/Counters.html" title="class in org.apache.hadoop.mapred">Counters</A>&nbsp;other)</CODE>
256
257<BR>
258&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;Increments multiple counters by their amounts in another Counters
259 instance.</TD>
260</TR>
261<TR BGCOLOR="white" CLASS="TableRowColor">
262<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
263<CODE>&nbsp;void</CODE></FONT></TD>
264<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/Counters.html#incrCounter(java.lang.Enum, long)">incrCounter</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Enum.html?is-external=true" title="class or interface in java.lang">Enum</A>&nbsp;key,
265            long&nbsp;amount)</CODE>
266
267<BR>
268&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;Increments the specified counter by the specified amount, creating it if
269 it didn't already exist.</TD>
270</TR>
271<TR BGCOLOR="white" CLASS="TableRowColor">
272<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
273<CODE>&nbsp;void</CODE></FONT></TD>
274<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/Counters.html#incrCounter(java.lang.String, java.lang.String, long)">incrCounter</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>&nbsp;group,
275            <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>&nbsp;counter,
276            long&nbsp;amount)</CODE>
277
278<BR>
279&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;Increments the specified counter by the specified amount, creating it if
280 it didn't already exist.</TD>
281</TR>
282<TR BGCOLOR="white" CLASS="TableRowColor">
283<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
284<CODE>&nbsp;<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>&lt;<A HREF="../../../../org/apache/hadoop/mapred/Counters.Group.html" title="class in org.apache.hadoop.mapred">Counters.Group</A>&gt;</CODE></FONT></TD>
285<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/Counters.html#iterator()">iterator</A></B>()</CODE>
286
287<BR>
288&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;&nbsp;</TD>
289</TR>
290<TR BGCOLOR="white" CLASS="TableRowColor">
291<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
292<CODE>&nbsp;void</CODE></FONT></TD>
293<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/Counters.html#log(org.apache.commons.logging.Log)">log</A></B>(org.apache.commons.logging.Log&nbsp;log)</CODE>
294
295<BR>
296&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;Logs the current counter values.</TD>
297</TR>
298<TR BGCOLOR="white" CLASS="TableRowColor">
299<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
300<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>
301<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/Counters.html#makeCompactString()">makeCompactString</A></B>()</CODE>
302
303<BR>
304&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;Convert a counters object into a single line that is easy to parse.</TD>
305</TR>
306<TR BGCOLOR="white" CLASS="TableRowColor">
307<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
308<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>
309<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/Counters.html#makeEscapedCompactString()">makeEscapedCompactString</A></B>()</CODE>
310
311<BR>
312&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;Represent the counter in a textual format that can be converted back to
313 its object form</TD>
314</TR>
315<TR BGCOLOR="white" CLASS="TableRowColor">
316<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
317<CODE>&nbsp;void</CODE></FONT></TD>
318<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/Counters.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>
319
320<BR>
321&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;Read a set of groups.</TD>
322</TR>
323<TR BGCOLOR="white" CLASS="TableRowColor">
324<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
325<CODE>&nbsp;int</CODE></FONT></TD>
326<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/Counters.html#size()">size</A></B>()</CODE>
327
328<BR>
329&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;Returns the total number of counters, by summing the number of counters
330 in each group.</TD>
331</TR>
332<TR BGCOLOR="white" CLASS="TableRowColor">
333<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
334<CODE>static&nbsp;<A HREF="../../../../org/apache/hadoop/mapred/Counters.html" title="class in org.apache.hadoop.mapred">Counters</A></CODE></FONT></TD>
335<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/Counters.html#sum(org.apache.hadoop.mapred.Counters, org.apache.hadoop.mapred.Counters)">sum</A></B>(<A HREF="../../../../org/apache/hadoop/mapred/Counters.html" title="class in org.apache.hadoop.mapred">Counters</A>&nbsp;a,
336    <A HREF="../../../../org/apache/hadoop/mapred/Counters.html" title="class in org.apache.hadoop.mapred">Counters</A>&nbsp;b)</CODE>
337
338<BR>
339&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;Convenience method for computing the sum of two sets of counters.</TD>
340</TR>
341<TR BGCOLOR="white" CLASS="TableRowColor">
342<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
343<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>
344<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/Counters.html#toString()">toString</A></B>()</CODE>
345
346<BR>
347&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;Return textual representation of the counter values.</TD>
348</TR>
349<TR BGCOLOR="white" CLASS="TableRowColor">
350<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
351<CODE>&nbsp;void</CODE></FONT></TD>
352<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/Counters.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>
353
354<BR>
355&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;Write the set of groups.</TD>
356</TR>
357</TABLE>
358&nbsp;<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
359<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
360<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
361<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>
362</TR>
363<TR BGCOLOR="white" CLASS="TableRowColor">
364<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#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#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>
365</TR>
366</TABLE>
367&nbsp;
368<P>
369
370<!-- ========= CONSTRUCTOR DETAIL ======== -->
371
372<A NAME="constructor_detail"><!-- --></A>
373<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
374<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
375<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
376<B>Constructor Detail</B></FONT></TH>
377</TR>
378</TABLE>
379
380<A NAME="Counters()"><!-- --></A><H3>
381Counters</H3>
382<PRE>
383public <B>Counters</B>()</PRE>
384<DL>
385<DD><B>Deprecated.</B>&nbsp;</DL>
386
387<!-- ============ METHOD DETAIL ========== -->
388
389<A NAME="method_detail"><!-- --></A>
390<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
391<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
392<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
393<B>Method Detail</B></FONT></TH>
394</TR>
395</TABLE>
396
397<A NAME="getGroupNames()"><!-- --></A><H3>
398getGroupNames</H3>
399<PRE>
400public <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>&lt;<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>&gt; <B>getGroupNames</B>()</PRE>
401<DL>
402<DD><B>Deprecated.</B>&nbsp;<DD>Returns the names of all counter classes.
403<P>
404<DD><DL>
405</DL>
406</DD>
407<DD><DL>
408
409<DT><B>Returns:</B><DD>Set of counter names.</DL>
410</DD>
411</DL>
412<HR>
413
414<A NAME="iterator()"><!-- --></A><H3>
415iterator</H3>
416<PRE>
417public <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>&lt;<A HREF="../../../../org/apache/hadoop/mapred/Counters.Group.html" title="class in org.apache.hadoop.mapred">Counters.Group</A>&gt; <B>iterator</B>()</PRE>
418<DL>
419<DD><B>Deprecated.</B>&nbsp;<DD><DL>
420<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>&lt;<A HREF="../../../../org/apache/hadoop/mapred/Counters.Group.html" title="class in org.apache.hadoop.mapred">Counters.Group</A>&gt;</CODE></DL>
421</DD>
422<DD><DL>
423</DL>
424</DD>
425</DL>
426<HR>
427
428<A NAME="getGroup(java.lang.String)"><!-- --></A><H3>
429getGroup</H3>
430<PRE>
431public <A HREF="../../../../org/apache/hadoop/mapred/Counters.Group.html" title="class in org.apache.hadoop.mapred">Counters.Group</A> <B>getGroup</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>&nbsp;groupName)</PRE>
432<DL>
433<DD><B>Deprecated.</B>&nbsp;<DD>Returns the named counter group, or an empty group if there is none
434 with the specified name.
435<P>
436<DD><DL>
437</DL>
438</DD>
439<DD><DL>
440</DL>
441</DD>
442</DL>
443<HR>
444
445<A NAME="findCounter(java.lang.Enum)"><!-- --></A><H3>
446findCounter</H3>
447<PRE>
448public <A HREF="../../../../org/apache/hadoop/mapred/Counters.Counter.html" title="class in org.apache.hadoop.mapred">Counters.Counter</A> <B>findCounter</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Enum.html?is-external=true" title="class or interface in java.lang">Enum</A>&nbsp;key)</PRE>
449<DL>
450<DD><B>Deprecated.</B>&nbsp;<DD>Find the counter for the given enum. The same enum will always return the
451 same counter.
452<P>
453<DD><DL>
454</DL>
455</DD>
456<DD><DL>
457<DT><B>Parameters:</B><DD><CODE>key</CODE> - the counter key
458<DT><B>Returns:</B><DD>the matching counter object</DL>
459</DD>
460</DL>
461<HR>
462
463<A NAME="findCounter(java.lang.String, java.lang.String)"><!-- --></A><H3>
464findCounter</H3>
465<PRE>
466public <A HREF="../../../../org/apache/hadoop/mapred/Counters.Counter.html" title="class in org.apache.hadoop.mapred">Counters.Counter</A> <B>findCounter</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>&nbsp;group,
467                                    <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>&nbsp;name)</PRE>
468<DL>
469<DD><B>Deprecated.</B>&nbsp;<DD>Find a counter given the group and the name.
470<P>
471<DD><DL>
472</DL>
473</DD>
474<DD><DL>
475<DT><B>Parameters:</B><DD><CODE>group</CODE> - the name of the group<DD><CODE>name</CODE> - the internal name of the counter
476<DT><B>Returns:</B><DD>the counter for that name</DL>
477</DD>
478</DL>
479<HR>
480
481<A NAME="findCounter(java.lang.String, int, java.lang.String)"><!-- --></A><H3>
482findCounter</H3>
483<PRE>
484<FONT SIZE="-1"><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Deprecated.html?is-external=true" title="class or interface in java.lang">@Deprecated</A>
485</FONT>public <A HREF="../../../../org/apache/hadoop/mapred/Counters.Counter.html" title="class in org.apache.hadoop.mapred">Counters.Counter</A> <B>findCounter</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>&nbsp;group,
486                                               int&nbsp;id,
487                                               <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>&nbsp;name)</PRE>
488<DL>
489<DD><B>Deprecated.</B>&nbsp;<I></I>
490<P>
491<DD>Find a counter by using strings
492<P>
493<DD><DL>
494</DL>
495</DD>
496<DD><DL>
497<DT><B>Parameters:</B><DD><CODE>group</CODE> - the name of the group<DD><CODE>id</CODE> - the id of the counter within the group (0 to N-1)<DD><CODE>name</CODE> - the internal name of the counter
498<DT><B>Returns:</B><DD>the counter for that name</DL>
499</DD>
500</DL>
501<HR>
502
503<A NAME="incrCounter(java.lang.Enum, long)"><!-- --></A><H3>
504incrCounter</H3>
505<PRE>
506public void <B>incrCounter</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Enum.html?is-external=true" title="class or interface in java.lang">Enum</A>&nbsp;key,
507                        long&nbsp;amount)</PRE>
508<DL>
509<DD><B>Deprecated.</B>&nbsp;<DD>Increments the specified counter by the specified amount, creating it if
510 it didn't already exist.
511<P>
512<DD><DL>
513</DL>
514</DD>
515<DD><DL>
516<DT><B>Parameters:</B><DD><CODE>key</CODE> - identifies a counter<DD><CODE>amount</CODE> - amount by which counter is to be incremented</DL>
517</DD>
518</DL>
519<HR>
520
521<A NAME="incrCounter(java.lang.String, java.lang.String, long)"><!-- --></A><H3>
522incrCounter</H3>
523<PRE>
524public void <B>incrCounter</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>&nbsp;group,
525                        <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>&nbsp;counter,
526                        long&nbsp;amount)</PRE>
527<DL>
528<DD><B>Deprecated.</B>&nbsp;<DD>Increments the specified counter by the specified amount, creating it if
529 it didn't already exist.
530<P>
531<DD><DL>
532</DL>
533</DD>
534<DD><DL>
535<DT><B>Parameters:</B><DD><CODE>group</CODE> - the name of the group<DD><CODE>counter</CODE> - the internal name of the counter<DD><CODE>amount</CODE> - amount by which counter is to be incremented</DL>
536</DD>
537</DL>
538<HR>
539
540<A NAME="getCounter(java.lang.Enum)"><!-- --></A><H3>
541getCounter</H3>
542<PRE>
543public long <B>getCounter</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Enum.html?is-external=true" title="class or interface in java.lang">Enum</A>&nbsp;key)</PRE>
544<DL>
545<DD><B>Deprecated.</B>&nbsp;<DD>Returns current value of the specified counter, or 0 if the counter
546 does not exist.
547<P>
548<DD><DL>
549</DL>
550</DD>
551<DD><DL>
552</DL>
553</DD>
554</DL>
555<HR>
556
557<A NAME="incrAllCounters(org.apache.hadoop.mapred.Counters)"><!-- --></A><H3>
558incrAllCounters</H3>
559<PRE>
560public void <B>incrAllCounters</B>(<A HREF="../../../../org/apache/hadoop/mapred/Counters.html" title="class in org.apache.hadoop.mapred">Counters</A>&nbsp;other)</PRE>
561<DL>
562<DD><B>Deprecated.</B>&nbsp;<DD>Increments multiple counters by their amounts in another Counters
563 instance.
564<P>
565<DD><DL>
566</DL>
567</DD>
568<DD><DL>
569<DT><B>Parameters:</B><DD><CODE>other</CODE> - the other Counters instance</DL>
570</DD>
571</DL>
572<HR>
573
574<A NAME="sum(org.apache.hadoop.mapred.Counters, org.apache.hadoop.mapred.Counters)"><!-- --></A><H3>
575sum</H3>
576<PRE>
577public static <A HREF="../../../../org/apache/hadoop/mapred/Counters.html" title="class in org.apache.hadoop.mapred">Counters</A> <B>sum</B>(<A HREF="../../../../org/apache/hadoop/mapred/Counters.html" title="class in org.apache.hadoop.mapred">Counters</A>&nbsp;a,
578                           <A HREF="../../../../org/apache/hadoop/mapred/Counters.html" title="class in org.apache.hadoop.mapred">Counters</A>&nbsp;b)</PRE>
579<DL>
580<DD><B>Deprecated.</B>&nbsp;<DD>Convenience method for computing the sum of two sets of counters.
581<P>
582<DD><DL>
583</DL>
584</DD>
585<DD><DL>
586</DL>
587</DD>
588</DL>
589<HR>
590
591<A NAME="size()"><!-- --></A><H3>
592size</H3>
593<PRE>
594public int <B>size</B>()</PRE>
595<DL>
596<DD><B>Deprecated.</B>&nbsp;<DD>Returns the total number of counters, by summing the number of counters
597 in each group.
598<P>
599<DD><DL>
600</DL>
601</DD>
602<DD><DL>
603</DL>
604</DD>
605</DL>
606<HR>
607
608<A NAME="write(java.io.DataOutput)"><!-- --></A><H3>
609write</H3>
610<PRE>
611public 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)
612           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>
613<DL>
614<DD><B>Deprecated.</B>&nbsp;<DD>Write the set of groups.
615 The external format is:
616     #groups (groupName group)*
617
618 i.e. the number of groups followed by 0 or more groups, where each
619 group is of the form:
620
621     groupDisplayName #counters (false | true counter)*
622
623 where each counter is of the form:
624
625     name (false | true displayName) value
626<P>
627<DD><DL>
628<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>
629</DD>
630<DD><DL>
631<DT><B>Parameters:</B><DD><CODE>out</CODE> - <code>DataOuput</code> to serialize this object into.
632<DT><B>Throws:</B>
633<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>
634</DD>
635</DL>
636<HR>
637
638<A NAME="readFields(java.io.DataInput)"><!-- --></A><H3>
639readFields</H3>
640<PRE>
641public 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)
642                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>
643<DL>
644<DD><B>Deprecated.</B>&nbsp;<DD>Read a set of groups.
645<P>
646<DD><DL>
647<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>
648</DD>
649<DD><DL>
650<DT><B>Parameters:</B><DD><CODE>in</CODE> - <code>DataInput</code> to deseriablize this object from.
651<DT><B>Throws:</B>
652<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>
653</DD>
654</DL>
655<HR>
656
657<A NAME="log(org.apache.commons.logging.Log)"><!-- --></A><H3>
658log</H3>
659<PRE>
660public void <B>log</B>(org.apache.commons.logging.Log&nbsp;log)</PRE>
661<DL>
662<DD><B>Deprecated.</B>&nbsp;<DD>Logs the current counter values.
663<P>
664<DD><DL>
665</DL>
666</DD>
667<DD><DL>
668<DT><B>Parameters:</B><DD><CODE>log</CODE> - The log to use.</DL>
669</DD>
670</DL>
671<HR>
672
673<A NAME="toString()"><!-- --></A><H3>
674toString</H3>
675<PRE>
676public <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>
677<DL>
678<DD><B>Deprecated.</B>&nbsp;<DD>Return textual representation of the counter values.
679<P>
680<DD><DL>
681<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>
682</DD>
683<DD><DL>
684</DL>
685</DD>
686</DL>
687<HR>
688
689<A NAME="makeCompactString()"><!-- --></A><H3>
690makeCompactString</H3>
691<PRE>
692public <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>makeCompactString</B>()</PRE>
693<DL>
694<DD><B>Deprecated.</B>&nbsp;<DD>Convert a counters object into a single line that is easy to parse.
695<P>
696<DD><DL>
697</DL>
698</DD>
699<DD><DL>
700
701<DT><B>Returns:</B><DD>the string with "name=value" for each counter and separated by ","</DL>
702</DD>
703</DL>
704<HR>
705
706<A NAME="makeEscapedCompactString()"><!-- --></A><H3>
707makeEscapedCompactString</H3>
708<PRE>
709public <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>makeEscapedCompactString</B>()</PRE>
710<DL>
711<DD><B>Deprecated.</B>&nbsp;<DD>Represent the counter in a textual format that can be converted back to
712 its object form
713<P>
714<DD><DL>
715</DL>
716</DD>
717<DD><DL>
718
719<DT><B>Returns:</B><DD>the string in the following format
720 {(groupname)(group-displayname)[(countername)(displayname)(value)][][]}{}{}</DL>
721</DD>
722</DL>
723<HR>
724
725<A NAME="fromEscapedCompactString(java.lang.String)"><!-- --></A><H3>
726fromEscapedCompactString</H3>
727<PRE>
728public static <A HREF="../../../../org/apache/hadoop/mapred/Counters.html" title="class in org.apache.hadoop.mapred">Counters</A> <B>fromEscapedCompactString</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>&nbsp;compactString)
729                                         throws <A HREF="http://java.sun.com/javase/6/docs/api/java/text/ParseException.html?is-external=true" title="class or interface in java.text">ParseException</A></PRE>
730<DL>
731<DD><B>Deprecated.</B>&nbsp;<DD>Convert a stringified counter representation into a counter object. Note
732 that the counter can be recovered if its stringified using
733 <A HREF="../../../../org/apache/hadoop/mapred/Counters.html#makeEscapedCompactString()"><CODE>makeEscapedCompactString()</CODE></A>.
734<P>
735<DD><DL>
736</DL>
737</DD>
738<DD><DL>
739
740<DT><B>Returns:</B><DD>a Counter
741<DT><B>Throws:</B>
742<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/text/ParseException.html?is-external=true" title="class or interface in java.text">ParseException</A></CODE></DL>
743</DD>
744</DL>
745<HR>
746
747<A NAME="hashCode()"><!-- --></A><H3>
748hashCode</H3>
749<PRE>
750public int <B>hashCode</B>()</PRE>
751<DL>
752<DD><B>Deprecated.</B>&nbsp;<DD><DL>
753<DT><B>Overrides:</B><DD><CODE><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></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>
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761<A NAME="equals(java.lang.Object)"><!-- --></A><H3>
762equals</H3>
763<PRE>
764public boolean <B>equals</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;obj)</PRE>
765<DL>
766<DD><B>Deprecated.</B>&nbsp;<DD><DL>
767<DT><B>Overrides:</B><DD><CODE><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></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>
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