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5<!-- Generated by javadoc (build 1.6.0_07) on Tue Sep 01 20:57:00 UTC 2009 -->
6<TITLE>
7Uses of Class org.apache.hadoop.io.LongWritable (Hadoop 0.20.1 API)
8</TITLE>
9
10<META NAME="date" CONTENT="2009-09-01">
11
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18        parent.document.title="Uses of Class org.apache.hadoop.io.LongWritable (Hadoop 0.20.1 API)";
19    }
20}
21</SCRIPT>
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37<A NAME="navbar_top_firstrow"><!-- --></A>
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39  <TR ALIGN="center" VALIGN="top">
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>
42  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../../../../org/apache/hadoop/io/LongWritable.html" title="class in org.apache.hadoop.io"><FONT CLASS="NavBarFont1"><B>Class</B></FONT></A>&nbsp;</TD>
43  <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> &nbsp;<FONT CLASS="NavBarFont1Rev"><B>Use</B></FONT>&nbsp;</TD>
44  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A>&nbsp;</TD>
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79<!-- ========= END OF TOP NAVBAR ========= -->
80
81<HR>
82<CENTER>
83<H2>
84<B>Uses of Class<br>org.apache.hadoop.io.LongWritable</B></H2>
85</CENTER>
86
87<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
88<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
89<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
90Packages that use <A HREF="../../../../../org/apache/hadoop/io/LongWritable.html" title="class in org.apache.hadoop.io">LongWritable</A></FONT></TH>
91</TR>
92<TR BGCOLOR="white" CLASS="TableRowColor">
93<TD><A HREF="#org.apache.hadoop.examples"><B>org.apache.hadoop.examples</B></A></TD>
94<TD>Hadoop example code.&nbsp;</TD>
95</TR>
96<TR BGCOLOR="white" CLASS="TableRowColor">
97<TD><A HREF="#org.apache.hadoop.examples.terasort"><B>org.apache.hadoop.examples.terasort</B></A></TD>
98<TD>This package consists of 3 map/reduce applications for Hadoop to
99compete in the annual <a
100href="http://www.hpl.hp.com/hosted/sortbenchmark" target="_top">terabyte sort</a>
101competition.&nbsp;</TD>
102</TR>
103<TR BGCOLOR="white" CLASS="TableRowColor">
104<TD><A HREF="#org.apache.hadoop.mapred"><B>org.apache.hadoop.mapred</B></A></TD>
105<TD>A software framework for easily writing applications which process vast
106amounts of data (multi-terabyte data-sets) parallelly on large clusters
107(thousands of nodes) built of commodity hardware in a reliable, fault-tolerant
108manner.&nbsp;</TD>
109</TR>
110<TR BGCOLOR="white" CLASS="TableRowColor">
111<TD><A HREF="#org.apache.hadoop.mapred.lib"><B>org.apache.hadoop.mapred.lib</B></A></TD>
112<TD>Library of generally useful mappers, reducers, and partitioners.&nbsp;</TD>
113</TR>
114<TR BGCOLOR="white" CLASS="TableRowColor">
115<TD><A HREF="#org.apache.hadoop.mapred.lib.db"><B>org.apache.hadoop.mapred.lib.db</B></A></TD>
116<TD>org.apache.hadoop.mapred.lib.db Package&nbsp;</TD>
117</TR>
118<TR BGCOLOR="white" CLASS="TableRowColor">
119<TD><A HREF="#org.apache.hadoop.mapreduce.lib.input"><B>org.apache.hadoop.mapreduce.lib.input</B></A></TD>
120<TD>&nbsp;&nbsp;</TD>
121</TR>
122<TR BGCOLOR="white" CLASS="TableRowColor">
123<TD><A HREF="#org.apache.hadoop.mapreduce.lib.reduce"><B>org.apache.hadoop.mapreduce.lib.reduce</B></A></TD>
124<TD>&nbsp;&nbsp;</TD>
125</TR>
126</TABLE>
127&nbsp;
128<P>
129<A NAME="org.apache.hadoop.examples"><!-- --></A>
130<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
131<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
132<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
133Uses of <A HREF="../../../../../org/apache/hadoop/io/LongWritable.html" title="class in org.apache.hadoop.io">LongWritable</A> in <A HREF="../../../../../org/apache/hadoop/examples/package-summary.html">org.apache.hadoop.examples</A></FONT></TH>
134</TR>
135</TABLE>
136&nbsp;
137<P>
138
139<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
140<TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor">
141<TH ALIGN="left" COLSPAN="2">Methods in <A HREF="../../../../../org/apache/hadoop/examples/package-summary.html">org.apache.hadoop.examples</A> with parameters of type <A HREF="../../../../../org/apache/hadoop/io/LongWritable.html" title="class in org.apache.hadoop.io">LongWritable</A></FONT></TH>
142</TR>
143<TR BGCOLOR="white" CLASS="TableRowColor">
144<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
145<CODE>&nbsp;void</CODE></FONT></TD>
146<TD><CODE><B>PiEstimator.PiMapper.</B><B><A HREF="../../../../../org/apache/hadoop/examples/PiEstimator.PiMapper.html#map(org.apache.hadoop.io.LongWritable, org.apache.hadoop.io.LongWritable, org.apache.hadoop.mapred.OutputCollector, org.apache.hadoop.mapred.Reporter)">map</A></B>(<A HREF="../../../../../org/apache/hadoop/io/LongWritable.html" title="class in org.apache.hadoop.io">LongWritable</A>&nbsp;offset,
147    <A HREF="../../../../../org/apache/hadoop/io/LongWritable.html" title="class in org.apache.hadoop.io">LongWritable</A>&nbsp;size,
148    <A HREF="../../../../../org/apache/hadoop/mapred/OutputCollector.html" title="interface in org.apache.hadoop.mapred">OutputCollector</A>&lt;<A HREF="../../../../../org/apache/hadoop/io/BooleanWritable.html" title="class in org.apache.hadoop.io">BooleanWritable</A>,<A HREF="../../../../../org/apache/hadoop/io/LongWritable.html" title="class in org.apache.hadoop.io">LongWritable</A>&gt;&nbsp;out,
149    <A HREF="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</A>&nbsp;reporter)</CODE>
150
151<BR>
152&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Map method.</TD>
153</TR>
154<TR BGCOLOR="white" CLASS="TableRowColor">
155<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
156<CODE>&nbsp;void</CODE></FONT></TD>
157<TD><CODE><B>SecondarySort.MapClass.</B><B><A HREF="../../../../../org/apache/hadoop/examples/SecondarySort.MapClass.html#map(org.apache.hadoop.io.LongWritable, org.apache.hadoop.io.Text, org.apache.hadoop.mapreduce.Mapper.Context)">map</A></B>(<A HREF="../../../../../org/apache/hadoop/io/LongWritable.html" title="class in org.apache.hadoop.io">LongWritable</A>&nbsp;inKey,
158    <A HREF="../../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>&nbsp;inValue,
159    <A HREF="../../../../../org/apache/hadoop/mapreduce/Mapper.Context.html" title="class in org.apache.hadoop.mapreduce">Mapper.Context</A>&nbsp;context)</CODE>
160
161<BR>
162&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
163</TR>
164</TABLE>
165&nbsp;
166<P>
167
168<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
169<TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor">
170<TH ALIGN="left" COLSPAN="2">Method parameters in <A HREF="../../../../../org/apache/hadoop/examples/package-summary.html">org.apache.hadoop.examples</A> with type arguments of type <A HREF="../../../../../org/apache/hadoop/io/LongWritable.html" title="class in org.apache.hadoop.io">LongWritable</A></FONT></TH>
171</TR>
172<TR BGCOLOR="white" CLASS="TableRowColor">
173<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
174<CODE>&nbsp;void</CODE></FONT></TD>
175<TD><CODE><B>PiEstimator.PiMapper.</B><B><A HREF="../../../../../org/apache/hadoop/examples/PiEstimator.PiMapper.html#map(org.apache.hadoop.io.LongWritable, org.apache.hadoop.io.LongWritable, org.apache.hadoop.mapred.OutputCollector, org.apache.hadoop.mapred.Reporter)">map</A></B>(<A HREF="../../../../../org/apache/hadoop/io/LongWritable.html" title="class in org.apache.hadoop.io">LongWritable</A>&nbsp;offset,
176    <A HREF="../../../../../org/apache/hadoop/io/LongWritable.html" title="class in org.apache.hadoop.io">LongWritable</A>&nbsp;size,
177    <A HREF="../../../../../org/apache/hadoop/mapred/OutputCollector.html" title="interface in org.apache.hadoop.mapred">OutputCollector</A>&lt;<A HREF="../../../../../org/apache/hadoop/io/BooleanWritable.html" title="class in org.apache.hadoop.io">BooleanWritable</A>,<A HREF="../../../../../org/apache/hadoop/io/LongWritable.html" title="class in org.apache.hadoop.io">LongWritable</A>&gt;&nbsp;out,
178    <A HREF="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</A>&nbsp;reporter)</CODE>
179
180<BR>
181&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Map method.</TD>
182</TR>
183<TR BGCOLOR="white" CLASS="TableRowColor">
184<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
185<CODE>&nbsp;void</CODE></FONT></TD>
186<TD><CODE><B>PiEstimator.PiReducer.</B><B><A HREF="../../../../../org/apache/hadoop/examples/PiEstimator.PiReducer.html#reduce(org.apache.hadoop.io.BooleanWritable, java.util.Iterator, org.apache.hadoop.mapred.OutputCollector, org.apache.hadoop.mapred.Reporter)">reduce</A></B>(<A HREF="../../../../../org/apache/hadoop/io/BooleanWritable.html" title="class in org.apache.hadoop.io">BooleanWritable</A>&nbsp;isInside,
187       <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/io/LongWritable.html" title="class in org.apache.hadoop.io">LongWritable</A>&gt;&nbsp;values,
188       <A HREF="../../../../../org/apache/hadoop/mapred/OutputCollector.html" title="interface in org.apache.hadoop.mapred">OutputCollector</A>&lt;<A HREF="../../../../../org/apache/hadoop/io/WritableComparable.html" title="interface in org.apache.hadoop.io">WritableComparable</A>&lt;?&gt;,<A HREF="../../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</A>&gt;&nbsp;output,
189       <A HREF="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</A>&nbsp;reporter)</CODE>
190
191<BR>
192&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accumulate number of points inside/outside results from the mappers.</TD>
193</TR>
194</TABLE>
195&nbsp;
196<P>
197<A NAME="org.apache.hadoop.examples.terasort"><!-- --></A>
198<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
199<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
200<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
201Uses of <A HREF="../../../../../org/apache/hadoop/io/LongWritable.html" title="class in org.apache.hadoop.io">LongWritable</A> in <A HREF="../../../../../org/apache/hadoop/examples/terasort/package-summary.html">org.apache.hadoop.examples.terasort</A></FONT></TH>
202</TR>
203</TABLE>
204&nbsp;
205<P>
206
207<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
208<TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor">
209<TH ALIGN="left" COLSPAN="2">Methods in <A HREF="../../../../../org/apache/hadoop/examples/terasort/package-summary.html">org.apache.hadoop.examples.terasort</A> with parameters of type <A HREF="../../../../../org/apache/hadoop/io/LongWritable.html" title="class in org.apache.hadoop.io">LongWritable</A></FONT></TH>
210</TR>
211<TR BGCOLOR="white" CLASS="TableRowColor">
212<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
213<CODE>&nbsp;void</CODE></FONT></TD>
214<TD><CODE><B>TeraGen.SortGenMapper.</B><B><A HREF="../../../../../org/apache/hadoop/examples/terasort/TeraGen.SortGenMapper.html#map(org.apache.hadoop.io.LongWritable, org.apache.hadoop.io.NullWritable, org.apache.hadoop.mapred.OutputCollector, org.apache.hadoop.mapred.Reporter)">map</A></B>(<A HREF="../../../../../org/apache/hadoop/io/LongWritable.html" title="class in org.apache.hadoop.io">LongWritable</A>&nbsp;row,
215    <A HREF="../../../../../org/apache/hadoop/io/NullWritable.html" title="class in org.apache.hadoop.io">NullWritable</A>&nbsp;ignored,
216    <A HREF="../../../../../org/apache/hadoop/mapred/OutputCollector.html" title="interface in org.apache.hadoop.mapred">OutputCollector</A>&lt;<A HREF="../../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>,<A HREF="../../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>&gt;&nbsp;output,
217    <A HREF="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</A>&nbsp;reporter)</CODE>
218
219<BR>
220&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
221</TR>
222</TABLE>
223&nbsp;
224<P>
225<A NAME="org.apache.hadoop.mapred"><!-- --></A>
226<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
227<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
228<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
229Uses of <A HREF="../../../../../org/apache/hadoop/io/LongWritable.html" title="class in org.apache.hadoop.io">LongWritable</A> in <A HREF="../../../../../org/apache/hadoop/mapred/package-summary.html">org.apache.hadoop.mapred</A></FONT></TH>
230</TR>
231</TABLE>
232&nbsp;
233<P>
234
235<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
236<TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor">
237<TH ALIGN="left" COLSPAN="2">Methods in <A HREF="../../../../../org/apache/hadoop/mapred/package-summary.html">org.apache.hadoop.mapred</A> that return <A HREF="../../../../../org/apache/hadoop/io/LongWritable.html" title="class in org.apache.hadoop.io">LongWritable</A></FONT></TH>
238</TR>
239<TR BGCOLOR="white" CLASS="TableRowColor">
240<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
241<CODE>&nbsp;<A HREF="../../../../../org/apache/hadoop/io/LongWritable.html" title="class in org.apache.hadoop.io">LongWritable</A></CODE></FONT></TD>
242<TD><CODE><B>LineRecordReader.</B><B><A HREF="../../../../../org/apache/hadoop/mapred/LineRecordReader.html#createKey()">createKey</A></B>()</CODE>
243
244<BR>
245&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;&nbsp;</TD>
246</TR>
247</TABLE>
248&nbsp;
249<P>
250
251<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
252<TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor">
253<TH ALIGN="left" COLSPAN="2">Methods in <A HREF="../../../../../org/apache/hadoop/mapred/package-summary.html">org.apache.hadoop.mapred</A> that return types with arguments of type <A HREF="../../../../../org/apache/hadoop/io/LongWritable.html" title="class in org.apache.hadoop.io">LongWritable</A></FONT></TH>
254</TR>
255<TR BGCOLOR="white" CLASS="TableRowColor">
256<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
257<CODE>&nbsp;<A HREF="../../../../../org/apache/hadoop/mapred/RecordReader.html" title="interface in org.apache.hadoop.mapred">RecordReader</A>&lt;<A HREF="../../../../../org/apache/hadoop/io/LongWritable.html" title="class in org.apache.hadoop.io">LongWritable</A>,<A HREF="../../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>&gt;</CODE></FONT></TD>
258<TD><CODE><B>TextInputFormat.</B><B><A HREF="../../../../../org/apache/hadoop/mapred/TextInputFormat.html#getRecordReader(org.apache.hadoop.mapred.InputSplit, org.apache.hadoop.mapred.JobConf, org.apache.hadoop.mapred.Reporter)">getRecordReader</A></B>(<A HREF="../../../../../org/apache/hadoop/mapred/InputSplit.html" title="interface in org.apache.hadoop.mapred">InputSplit</A>&nbsp;genericSplit,
259                <A HREF="../../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</A>&nbsp;job,
260                <A HREF="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</A>&nbsp;reporter)</CODE>
261
262<BR>
263&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;&nbsp;</TD>
264</TR>
265</TABLE>
266&nbsp;
267<P>
268
269<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
270<TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor">
271<TH ALIGN="left" COLSPAN="2">Methods in <A HREF="../../../../../org/apache/hadoop/mapred/package-summary.html">org.apache.hadoop.mapred</A> with parameters of type <A HREF="../../../../../org/apache/hadoop/io/LongWritable.html" title="class in org.apache.hadoop.io">LongWritable</A></FONT></TH>
272</TR>
273<TR BGCOLOR="white" CLASS="TableRowColor">
274<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
275<CODE>&nbsp;boolean</CODE></FONT></TD>
276<TD><CODE><B>LineRecordReader.</B><B><A HREF="../../../../../org/apache/hadoop/mapred/LineRecordReader.html#next(org.apache.hadoop.io.LongWritable, org.apache.hadoop.io.Text)">next</A></B>(<A HREF="../../../../../org/apache/hadoop/io/LongWritable.html" title="class in org.apache.hadoop.io">LongWritable</A>&nbsp;key,
277     <A HREF="../../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>&nbsp;value)</CODE>
278
279<BR>
280&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;Read a line.</TD>
281</TR>
282</TABLE>
283&nbsp;
284<P>
285<A NAME="org.apache.hadoop.mapred.lib"><!-- --></A>
286<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
287<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
288<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
289Uses of <A HREF="../../../../../org/apache/hadoop/io/LongWritable.html" title="class in org.apache.hadoop.io">LongWritable</A> in <A HREF="../../../../../org/apache/hadoop/mapred/lib/package-summary.html">org.apache.hadoop.mapred.lib</A></FONT></TH>
290</TR>
291</TABLE>
292&nbsp;
293<P>
294
295<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
296<TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor">
297<TH ALIGN="left" COLSPAN="2">Methods in <A HREF="../../../../../org/apache/hadoop/mapred/lib/package-summary.html">org.apache.hadoop.mapred.lib</A> that return types with arguments of type <A HREF="../../../../../org/apache/hadoop/io/LongWritable.html" title="class in org.apache.hadoop.io">LongWritable</A></FONT></TH>
298</TR>
299<TR BGCOLOR="white" CLASS="TableRowColor">
300<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
301<CODE>&nbsp;<A HREF="../../../../../org/apache/hadoop/mapred/RecordReader.html" title="interface in org.apache.hadoop.mapred">RecordReader</A>&lt;<A HREF="../../../../../org/apache/hadoop/io/LongWritable.html" title="class in org.apache.hadoop.io">LongWritable</A>,<A HREF="../../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>&gt;</CODE></FONT></TD>
302<TD><CODE><B>NLineInputFormat.</B><B><A HREF="../../../../../org/apache/hadoop/mapred/lib/NLineInputFormat.html#getRecordReader(org.apache.hadoop.mapred.InputSplit, org.apache.hadoop.mapred.JobConf, org.apache.hadoop.mapred.Reporter)">getRecordReader</A></B>(<A HREF="../../../../../org/apache/hadoop/mapred/InputSplit.html" title="interface in org.apache.hadoop.mapred">InputSplit</A>&nbsp;genericSplit,
303                <A HREF="../../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</A>&nbsp;job,
304                <A HREF="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</A>&nbsp;reporter)</CODE>
305
306<BR>
307&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
308</TR>
309</TABLE>
310&nbsp;
311<P>
312
313<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
314<TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor">
315<TH ALIGN="left" COLSPAN="2">Method parameters in <A HREF="../../../../../org/apache/hadoop/mapred/lib/package-summary.html">org.apache.hadoop.mapred.lib</A> with type arguments of type <A HREF="../../../../../org/apache/hadoop/io/LongWritable.html" title="class in org.apache.hadoop.io">LongWritable</A></FONT></TH>
316</TR>
317<TR BGCOLOR="white" CLASS="TableRowColor">
318<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
319<CODE>&nbsp;void</CODE></FONT></TD>
320<TD><CODE><B>TokenCountMapper.</B><B><A HREF="../../../../../org/apache/hadoop/mapred/lib/TokenCountMapper.html#map(K, org.apache.hadoop.io.Text, org.apache.hadoop.mapred.OutputCollector, org.apache.hadoop.mapred.Reporter)">map</A></B>(<A HREF="../../../../../org/apache/hadoop/mapred/lib/TokenCountMapper.html" title="type parameter in TokenCountMapper">K</A>&nbsp;key,
321    <A HREF="../../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>&nbsp;value,
322    <A HREF="../../../../../org/apache/hadoop/mapred/OutputCollector.html" title="interface in org.apache.hadoop.mapred">OutputCollector</A>&lt;<A HREF="../../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>,<A HREF="../../../../../org/apache/hadoop/io/LongWritable.html" title="class in org.apache.hadoop.io">LongWritable</A>&gt;&nbsp;output,
323    <A HREF="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</A>&nbsp;reporter)</CODE>
324
325<BR>
326&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;&nbsp;</TD>
327</TR>
328<TR BGCOLOR="white" CLASS="TableRowColor">
329<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
330<CODE>&nbsp;void</CODE></FONT></TD>
331<TD><CODE><B>RegexMapper.</B><B><A HREF="../../../../../org/apache/hadoop/mapred/lib/RegexMapper.html#map(K, org.apache.hadoop.io.Text, org.apache.hadoop.mapred.OutputCollector, org.apache.hadoop.mapred.Reporter)">map</A></B>(<A HREF="../../../../../org/apache/hadoop/mapred/lib/RegexMapper.html" title="type parameter in RegexMapper">K</A>&nbsp;key,
332    <A HREF="../../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>&nbsp;value,
333    <A HREF="../../../../../org/apache/hadoop/mapred/OutputCollector.html" title="interface in org.apache.hadoop.mapred">OutputCollector</A>&lt;<A HREF="../../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>,<A HREF="../../../../../org/apache/hadoop/io/LongWritable.html" title="class in org.apache.hadoop.io">LongWritable</A>&gt;&nbsp;output,
334    <A HREF="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</A>&nbsp;reporter)</CODE>
335
336<BR>
337&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
338</TR>
339<TR BGCOLOR="white" CLASS="TableRowColor">
340<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
341<CODE>&nbsp;void</CODE></FONT></TD>
342<TD><CODE><B>LongSumReducer.</B><B><A HREF="../../../../../org/apache/hadoop/mapred/lib/LongSumReducer.html#reduce(K, java.util.Iterator, org.apache.hadoop.mapred.OutputCollector, org.apache.hadoop.mapred.Reporter)">reduce</A></B>(<A HREF="../../../../../org/apache/hadoop/mapred/lib/LongSumReducer.html" title="type parameter in LongSumReducer">K</A>&nbsp;key,
343       <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/io/LongWritable.html" title="class in org.apache.hadoop.io">LongWritable</A>&gt;&nbsp;values,
344       <A HREF="../../../../../org/apache/hadoop/mapred/OutputCollector.html" title="interface in org.apache.hadoop.mapred">OutputCollector</A>&lt;<A HREF="../../../../../org/apache/hadoop/mapred/lib/LongSumReducer.html" title="type parameter in LongSumReducer">K</A>,<A HREF="../../../../../org/apache/hadoop/io/LongWritable.html" title="class in org.apache.hadoop.io">LongWritable</A>&gt;&nbsp;output,
345       <A HREF="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</A>&nbsp;reporter)</CODE>
346
347<BR>
348&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;&nbsp;</TD>
349</TR>
350<TR BGCOLOR="white" CLASS="TableRowColor">
351<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
352<CODE>&nbsp;void</CODE></FONT></TD>
353<TD><CODE><B>LongSumReducer.</B><B><A HREF="../../../../../org/apache/hadoop/mapred/lib/LongSumReducer.html#reduce(K, java.util.Iterator, org.apache.hadoop.mapred.OutputCollector, org.apache.hadoop.mapred.Reporter)">reduce</A></B>(<A HREF="../../../../../org/apache/hadoop/mapred/lib/LongSumReducer.html" title="type parameter in LongSumReducer">K</A>&nbsp;key,
354       <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/io/LongWritable.html" title="class in org.apache.hadoop.io">LongWritable</A>&gt;&nbsp;values,
355       <A HREF="../../../../../org/apache/hadoop/mapred/OutputCollector.html" title="interface in org.apache.hadoop.mapred">OutputCollector</A>&lt;<A HREF="../../../../../org/apache/hadoop/mapred/lib/LongSumReducer.html" title="type parameter in LongSumReducer">K</A>,<A HREF="../../../../../org/apache/hadoop/io/LongWritable.html" title="class in org.apache.hadoop.io">LongWritable</A>&gt;&nbsp;output,
356       <A HREF="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</A>&nbsp;reporter)</CODE>
357
358<BR>
359&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;&nbsp;</TD>
360</TR>
361</TABLE>
362&nbsp;
363<P>
364<A NAME="org.apache.hadoop.mapred.lib.db"><!-- --></A>
365<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
366<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
367<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
368Uses of <A HREF="../../../../../org/apache/hadoop/io/LongWritable.html" title="class in org.apache.hadoop.io">LongWritable</A> in <A HREF="../../../../../org/apache/hadoop/mapred/lib/db/package-summary.html">org.apache.hadoop.mapred.lib.db</A></FONT></TH>
369</TR>
370</TABLE>
371&nbsp;
372<P>
373
374<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
375<TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor">
376<TH ALIGN="left" COLSPAN="2">Methods in <A HREF="../../../../../org/apache/hadoop/mapred/lib/db/package-summary.html">org.apache.hadoop.mapred.lib.db</A> that return <A HREF="../../../../../org/apache/hadoop/io/LongWritable.html" title="class in org.apache.hadoop.io">LongWritable</A></FONT></TH>
377</TR>
378<TR BGCOLOR="white" CLASS="TableRowColor">
379<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
380<CODE>&nbsp;<A HREF="../../../../../org/apache/hadoop/io/LongWritable.html" title="class in org.apache.hadoop.io">LongWritable</A></CODE></FONT></TD>
381<TD><CODE><B>DBInputFormat.DBRecordReader.</B><B><A HREF="../../../../../org/apache/hadoop/mapred/lib/db/DBInputFormat.DBRecordReader.html#createKey()">createKey</A></B>()</CODE>
382
383<BR>
384&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Create an object of the appropriate type to be used as a key.</TD>
385</TR>
386</TABLE>
387&nbsp;
388<P>
389
390<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
391<TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor">
392<TH ALIGN="left" COLSPAN="2">Methods in <A HREF="../../../../../org/apache/hadoop/mapred/lib/db/package-summary.html">org.apache.hadoop.mapred.lib.db</A> that return types with arguments of type <A HREF="../../../../../org/apache/hadoop/io/LongWritable.html" title="class in org.apache.hadoop.io">LongWritable</A></FONT></TH>
393</TR>
394<TR BGCOLOR="white" CLASS="TableRowColor">
395<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
396<CODE>&nbsp;<A HREF="../../../../../org/apache/hadoop/mapred/RecordReader.html" title="interface in org.apache.hadoop.mapred">RecordReader</A>&lt;<A HREF="../../../../../org/apache/hadoop/io/LongWritable.html" title="class in org.apache.hadoop.io">LongWritable</A>,<A HREF="../../../../../org/apache/hadoop/mapred/lib/db/DBInputFormat.html" title="type parameter in DBInputFormat">T</A>&gt;</CODE></FONT></TD>
397<TD><CODE><B>DBInputFormat.</B><B><A HREF="../../../../../org/apache/hadoop/mapred/lib/db/DBInputFormat.html#getRecordReader(org.apache.hadoop.mapred.InputSplit, org.apache.hadoop.mapred.JobConf, org.apache.hadoop.mapred.Reporter)">getRecordReader</A></B>(<A HREF="../../../../../org/apache/hadoop/mapred/InputSplit.html" title="interface in org.apache.hadoop.mapred">InputSplit</A>&nbsp;split,
398                <A HREF="../../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</A>&nbsp;job,
399                <A HREF="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</A>&nbsp;reporter)</CODE>
400
401<BR>
402&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Get the <A HREF="../../../../../org/apache/hadoop/mapred/RecordReader.html" title="interface in org.apache.hadoop.mapred"><CODE>RecordReader</CODE></A> for the given <A HREF="../../../../../org/apache/hadoop/mapred/InputSplit.html" title="interface in org.apache.hadoop.mapred"><CODE>InputSplit</CODE></A>.</TD>
403</TR>
404</TABLE>
405&nbsp;
406<P>
407
408<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
409<TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor">
410<TH ALIGN="left" COLSPAN="2">Methods in <A HREF="../../../../../org/apache/hadoop/mapred/lib/db/package-summary.html">org.apache.hadoop.mapred.lib.db</A> with parameters of type <A HREF="../../../../../org/apache/hadoop/io/LongWritable.html" title="class in org.apache.hadoop.io">LongWritable</A></FONT></TH>
411</TR>
412<TR BGCOLOR="white" CLASS="TableRowColor">
413<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
414<CODE>&nbsp;boolean</CODE></FONT></TD>
415<TD><CODE><B>DBInputFormat.DBRecordReader.</B><B><A HREF="../../../../../org/apache/hadoop/mapred/lib/db/DBInputFormat.DBRecordReader.html#next(org.apache.hadoop.io.LongWritable, T)">next</A></B>(<A HREF="../../../../../org/apache/hadoop/io/LongWritable.html" title="class in org.apache.hadoop.io">LongWritable</A>&nbsp;key,
416     <A HREF="../../../../../org/apache/hadoop/mapred/lib/db/DBInputFormat.html" title="type parameter in DBInputFormat">T</A>&nbsp;value)</CODE>
417
418<BR>
419&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Reads the next key/value pair from the input for processing.</TD>
420</TR>
421</TABLE>
422&nbsp;
423<P>
424<A NAME="org.apache.hadoop.mapreduce.lib.input"><!-- --></A>
425<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
426<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
427<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
428Uses of <A HREF="../../../../../org/apache/hadoop/io/LongWritable.html" title="class in org.apache.hadoop.io">LongWritable</A> in <A HREF="../../../../../org/apache/hadoop/mapreduce/lib/input/package-summary.html">org.apache.hadoop.mapreduce.lib.input</A></FONT></TH>
429</TR>
430</TABLE>
431&nbsp;
432<P>
433
434<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
435<TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor">
436<TH ALIGN="left" COLSPAN="2">Methods in <A HREF="../../../../../org/apache/hadoop/mapreduce/lib/input/package-summary.html">org.apache.hadoop.mapreduce.lib.input</A> that return <A HREF="../../../../../org/apache/hadoop/io/LongWritable.html" title="class in org.apache.hadoop.io">LongWritable</A></FONT></TH>
437</TR>
438<TR BGCOLOR="white" CLASS="TableRowColor">
439<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
440<CODE>&nbsp;<A HREF="../../../../../org/apache/hadoop/io/LongWritable.html" title="class in org.apache.hadoop.io">LongWritable</A></CODE></FONT></TD>
441<TD><CODE><B>LineRecordReader.</B><B><A HREF="../../../../../org/apache/hadoop/mapreduce/lib/input/LineRecordReader.html#getCurrentKey()">getCurrentKey</A></B>()</CODE>
442
443<BR>
444&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
445</TR>
446</TABLE>
447&nbsp;
448<P>
449
450<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
451<TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor">
452<TH ALIGN="left" COLSPAN="2">Methods in <A HREF="../../../../../org/apache/hadoop/mapreduce/lib/input/package-summary.html">org.apache.hadoop.mapreduce.lib.input</A> that return types with arguments of type <A HREF="../../../../../org/apache/hadoop/io/LongWritable.html" title="class in org.apache.hadoop.io">LongWritable</A></FONT></TH>
453</TR>
454<TR BGCOLOR="white" CLASS="TableRowColor">
455<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
456<CODE>&nbsp;<A HREF="../../../../../org/apache/hadoop/mapreduce/RecordReader.html" title="class in org.apache.hadoop.mapreduce">RecordReader</A>&lt;<A HREF="../../../../../org/apache/hadoop/io/LongWritable.html" title="class in org.apache.hadoop.io">LongWritable</A>,<A HREF="../../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</A>&gt;</CODE></FONT></TD>
457<TD><CODE><B>TextInputFormat.</B><B><A HREF="../../../../../org/apache/hadoop/mapreduce/lib/input/TextInputFormat.html#createRecordReader(org.apache.hadoop.mapreduce.InputSplit, org.apache.hadoop.mapreduce.TaskAttemptContext)">createRecordReader</A></B>(<A HREF="../../../../../org/apache/hadoop/mapreduce/InputSplit.html" title="class in org.apache.hadoop.mapreduce">InputSplit</A>&nbsp;split,
458                   <A HREF="../../../../../org/apache/hadoop/mapreduce/TaskAttemptContext.html" title="class in org.apache.hadoop.mapreduce">TaskAttemptContext</A>&nbsp;context)</CODE>
459
460<BR>
461&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
462</TR>
463</TABLE>
464&nbsp;
465<P>
466<A NAME="org.apache.hadoop.mapreduce.lib.reduce"><!-- --></A>
467<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
468<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
469<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
470Uses of <A HREF="../../../../../org/apache/hadoop/io/LongWritable.html" title="class in org.apache.hadoop.io">LongWritable</A> in <A HREF="../../../../../org/apache/hadoop/mapreduce/lib/reduce/package-summary.html">org.apache.hadoop.mapreduce.lib.reduce</A></FONT></TH>
471</TR>
472</TABLE>
473&nbsp;
474<P>
475
476<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
477<TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor">
478<TH ALIGN="left" COLSPAN="2">Method parameters in <A HREF="../../../../../org/apache/hadoop/mapreduce/lib/reduce/package-summary.html">org.apache.hadoop.mapreduce.lib.reduce</A> with type arguments of type <A HREF="../../../../../org/apache/hadoop/io/LongWritable.html" title="class in org.apache.hadoop.io">LongWritable</A></FONT></TH>
479</TR>
480<TR BGCOLOR="white" CLASS="TableRowColor">
481<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
482<CODE>&nbsp;void</CODE></FONT></TD>
483<TD><CODE><B>LongSumReducer.</B><B><A HREF="../../../../../org/apache/hadoop/mapreduce/lib/reduce/LongSumReducer.html#reduce(KEY, java.lang.Iterable, org.apache.hadoop.mapreduce.Reducer.Context)">reduce</A></B>(<A HREF="../../../../../org/apache/hadoop/mapreduce/lib/reduce/LongSumReducer.html" title="type parameter in LongSumReducer">KEY</A>&nbsp;key,
484       <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/io/LongWritable.html" title="class in org.apache.hadoop.io">LongWritable</A>&gt;&nbsp;values,
485       <A HREF="../../../../../org/apache/hadoop/mapreduce/Reducer.Context.html" title="class in org.apache.hadoop.mapreduce">Reducer.Context</A>&nbsp;context)</CODE>
486
487<BR>
488&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
489</TR>
490</TABLE>
491&nbsp;
492<P>
493<HR>
494
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