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<h2 title="Uses of Interface org.apache.hadoop.mapred.Reporter" class="title">Uses of Interface<br>org.apache.hadoop.mapred.Reporter</h2>
</div>
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<ul class="blockList">
<li class="blockList">
<table class="useSummary" border="0" cellpadding="3" cellspacing="0" summary="Use table, listing packages, and an explanation">
<caption><span>Packages that use <a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a></span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Package</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tbody>
<tr class="altColor">
<td class="colFirst"><a href="#org.apache.hadoop.mapred">org.apache.hadoop.mapred</a></td>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="#org.apache.hadoop.mapred.join">org.apache.hadoop.mapred.join</a></td>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="#org.apache.hadoop.mapred.lib">org.apache.hadoop.mapred.lib</a></td>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="#org.apache.hadoop.mapred.lib.aggregate">org.apache.hadoop.mapred.lib.aggregate</a></td>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="#org.apache.hadoop.mapred.lib.db">org.apache.hadoop.mapred.lib.db</a></td>
<td class="colLast">&nbsp;</td>
</tr>
</tbody>
</table>
</li>
<li class="blockList">
<ul class="blockList">
<li class="blockList"><a name="org.apache.hadoop.mapred">
<!-- -->
</a>
<h3>Uses of <a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a> in <a href="../../../../../org/apache/hadoop/mapred/package-summary.html">org.apache.hadoop.mapred</a></h3>
<table class="useSummary" border="0" cellpadding="3" cellspacing="0" summary="Use table, listing fields, and an explanation">
<caption><span>Fields in <a href="../../../../../org/apache/hadoop/mapred/package-summary.html">org.apache.hadoop.mapred</a> declared as <a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a></span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Field and Description</th>
</tr>
<tbody>
<tr class="altColor">
<td class="colFirst"><code>static <a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a></code></td>
<td class="colLast"><span class="typeNameLabel">Reporter.</span><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/Reporter.html#NULL">NULL</a></span></code>
<div class="block">A constant of Reporter type that does nothing.</div>
</td>
</tr>
</tbody>
</table>
<table class="useSummary" border="0" cellpadding="3" cellspacing="0" summary="Use table, listing methods, and an explanation">
<caption><span>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/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a></span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
</tr>
<tbody>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><span class="typeNameLabel">RecordWriter.</span><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/RecordWriter.html#close-org.apache.hadoop.mapred.Reporter-">close</a></span>(<a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a>&nbsp;reporter)</code>
<div class="block">Close this <code>RecordWriter</code> to future operations.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>abstract <a href="../../../../../org/apache/hadoop/mapred/RecordReader.html" title="interface in org.apache.hadoop.mapred">RecordReader</a>&lt;<a href="../../../../../org/apache/hadoop/mapred/FileInputFormat.html" title="type parameter in FileInputFormat">K</a>,<a href="../../../../../org/apache/hadoop/mapred/FileInputFormat.html" title="type parameter in FileInputFormat">V</a>&gt;</code></td>
<td class="colLast"><span class="typeNameLabel">FileInputFormat.</span><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/FileInputFormat.html#getRecordReader-org.apache.hadoop.mapred.InputSplit-org.apache.hadoop.mapred.JobConf-org.apache.hadoop.mapred.Reporter-">getRecordReader</a></span>(<a href="../../../../../org/apache/hadoop/mapred/InputSplit.html" title="interface in org.apache.hadoop.mapred">InputSplit</a>&nbsp;split,
<a href="../../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</a>&nbsp;job,
<a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a>&nbsp;reporter)</code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><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></td>
<td class="colLast"><span class="typeNameLabel">TextInputFormat.</span><code><span class="memberNameLink"><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></span>(<a href="../../../../../org/apache/hadoop/mapred/InputSplit.html" title="interface in org.apache.hadoop.mapred">InputSplit</a>&nbsp;genericSplit,
<a href="../../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</a>&nbsp;job,
<a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a>&nbsp;reporter)</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/hadoop/mapred/RecordReader.html" title="interface in org.apache.hadoop.mapred">RecordReader</a>&lt;<a href="../../../../../org/apache/hadoop/mapred/InputFormat.html" title="type parameter in InputFormat">K</a>,<a href="../../../../../org/apache/hadoop/mapred/InputFormat.html" title="type parameter in InputFormat">V</a>&gt;</code></td>
<td class="colLast"><span class="typeNameLabel">InputFormat.</span><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/InputFormat.html#getRecordReader-org.apache.hadoop.mapred.InputSplit-org.apache.hadoop.mapred.JobConf-org.apache.hadoop.mapred.Reporter-">getRecordReader</a></span>(<a href="../../../../../org/apache/hadoop/mapred/InputSplit.html" title="interface in org.apache.hadoop.mapred">InputSplit</a>&nbsp;split,
<a href="../../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</a>&nbsp;job,
<a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a>&nbsp;reporter)</code>
<div class="block">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>.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/hadoop/mapred/RecordReader.html" title="interface in org.apache.hadoop.mapred">RecordReader</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;</code></td>
<td class="colLast"><span class="typeNameLabel">SequenceFileAsTextInputFormat.</span><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/SequenceFileAsTextInputFormat.html#getRecordReader-org.apache.hadoop.mapred.InputSplit-org.apache.hadoop.mapred.JobConf-org.apache.hadoop.mapred.Reporter-">getRecordReader</a></span>(<a href="../../../../../org/apache/hadoop/mapred/InputSplit.html" title="interface in org.apache.hadoop.mapred">InputSplit</a>&nbsp;split,
<a href="../../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</a>&nbsp;job,
<a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a>&nbsp;reporter)</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><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/BytesWritable.html" title="class in org.apache.hadoop.io">BytesWritable</a>&gt;</code></td>
<td class="colLast"><span class="typeNameLabel">FixedLengthInputFormat.</span><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/FixedLengthInputFormat.html#getRecordReader-org.apache.hadoop.mapred.InputSplit-org.apache.hadoop.mapred.JobConf-org.apache.hadoop.mapred.Reporter-">getRecordReader</a></span>(<a href="../../../../../org/apache/hadoop/mapred/InputSplit.html" title="interface in org.apache.hadoop.mapred">InputSplit</a>&nbsp;genericSplit,
<a href="../../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</a>&nbsp;job,
<a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a>&nbsp;reporter)</code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/hadoop/mapred/RecordReader.html" title="interface in org.apache.hadoop.mapred">RecordReader</a>&lt;<a href="../../../../../org/apache/hadoop/mapred/SequenceFileInputFilter.html" title="type parameter in SequenceFileInputFilter">K</a>,<a href="../../../../../org/apache/hadoop/mapred/SequenceFileInputFilter.html" title="type parameter in SequenceFileInputFilter">V</a>&gt;</code></td>
<td class="colLast"><span class="typeNameLabel">SequenceFileInputFilter.</span><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/SequenceFileInputFilter.html#getRecordReader-org.apache.hadoop.mapred.InputSplit-org.apache.hadoop.mapred.JobConf-org.apache.hadoop.mapred.Reporter-">getRecordReader</a></span>(<a href="../../../../../org/apache/hadoop/mapred/InputSplit.html" title="interface in org.apache.hadoop.mapred">InputSplit</a>&nbsp;split,
<a href="../../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</a>&nbsp;job,
<a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a>&nbsp;reporter)</code>
<div class="block">Create a record reader for the given split</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/hadoop/mapred/RecordReader.html" title="interface in org.apache.hadoop.mapred">RecordReader</a>&lt;<a href="../../../../../org/apache/hadoop/mapred/SequenceFileInputFormat.html" title="type parameter in SequenceFileInputFormat">K</a>,<a href="../../../../../org/apache/hadoop/mapred/SequenceFileInputFormat.html" title="type parameter in SequenceFileInputFormat">V</a>&gt;</code></td>
<td class="colLast"><span class="typeNameLabel">SequenceFileInputFormat.</span><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/SequenceFileInputFormat.html#getRecordReader-org.apache.hadoop.mapred.InputSplit-org.apache.hadoop.mapred.JobConf-org.apache.hadoop.mapred.Reporter-">getRecordReader</a></span>(<a href="../../../../../org/apache/hadoop/mapred/InputSplit.html" title="interface in org.apache.hadoop.mapred">InputSplit</a>&nbsp;split,
<a href="../../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</a>&nbsp;job,
<a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a>&nbsp;reporter)</code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>abstract <a href="../../../../../org/apache/hadoop/mapred/RecordReader.html" title="interface in org.apache.hadoop.mapred">RecordReader</a>&lt;<a href="../../../../../org/apache/hadoop/mapred/MultiFileInputFormat.html" title="type parameter in MultiFileInputFormat">K</a>,<a href="../../../../../org/apache/hadoop/mapred/MultiFileInputFormat.html" title="type parameter in MultiFileInputFormat">V</a>&gt;</code></td>
<td class="colLast"><span class="typeNameLabel">MultiFileInputFormat.</span><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/MultiFileInputFormat.html#getRecordReader-org.apache.hadoop.mapred.InputSplit-org.apache.hadoop.mapred.JobConf-org.apache.hadoop.mapred.Reporter-">getRecordReader</a></span>(<a href="../../../../../org/apache/hadoop/mapred/InputSplit.html" title="interface in org.apache.hadoop.mapred">InputSplit</a>&nbsp;split,
<a href="../../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</a>&nbsp;job,
<a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a>&nbsp;reporter)</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/hadoop/mapred/RecordReader.html" title="interface in org.apache.hadoop.mapred">RecordReader</a>&lt;<a href="../../../../../org/apache/hadoop/io/BytesWritable.html" title="class in org.apache.hadoop.io">BytesWritable</a>,<a href="../../../../../org/apache/hadoop/io/BytesWritable.html" title="class in org.apache.hadoop.io">BytesWritable</a>&gt;</code></td>
<td class="colLast"><span class="typeNameLabel">SequenceFileAsBinaryInputFormat.</span><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/SequenceFileAsBinaryInputFormat.html#getRecordReader-org.apache.hadoop.mapred.InputSplit-org.apache.hadoop.mapred.JobConf-org.apache.hadoop.mapred.Reporter-">getRecordReader</a></span>(<a href="../../../../../org/apache/hadoop/mapred/InputSplit.html" title="interface in org.apache.hadoop.mapred">InputSplit</a>&nbsp;split,
<a href="../../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</a>&nbsp;job,
<a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a>&nbsp;reporter)</code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/hadoop/mapred/RecordReader.html" title="interface in org.apache.hadoop.mapred">RecordReader</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;</code></td>
<td class="colLast"><span class="typeNameLabel">KeyValueTextInputFormat.</span><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/KeyValueTextInputFormat.html#getRecordReader-org.apache.hadoop.mapred.InputSplit-org.apache.hadoop.mapred.JobConf-org.apache.hadoop.mapred.Reporter-">getRecordReader</a></span>(<a href="../../../../../org/apache/hadoop/mapred/InputSplit.html" title="interface in org.apache.hadoop.mapred">InputSplit</a>&nbsp;genericSplit,
<a href="../../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</a>&nbsp;job,
<a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a>&nbsp;reporter)</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><span class="typeNameLabel">Mapper.</span><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/Mapper.html#map-K1-V1-org.apache.hadoop.mapred.OutputCollector-org.apache.hadoop.mapred.Reporter-">map</a></span>(<a href="../../../../../org/apache/hadoop/mapred/Mapper.html" title="type parameter in Mapper">K1</a>&nbsp;key,
<a href="../../../../../org/apache/hadoop/mapred/Mapper.html" title="type parameter in Mapper">V1</a>&nbsp;value,
<a href="../../../../../org/apache/hadoop/mapred/OutputCollector.html" title="interface in org.apache.hadoop.mapred">OutputCollector</a>&lt;<a href="../../../../../org/apache/hadoop/mapred/Mapper.html" title="type parameter in Mapper">K2</a>,<a href="../../../../../org/apache/hadoop/mapred/Mapper.html" title="type parameter in Mapper">V2</a>&gt;&nbsp;output,
<a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a>&nbsp;reporter)</code>
<div class="block">Maps a single input key/value pair into an intermediate key/value pair.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><span class="typeNameLabel">Reducer.</span><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/Reducer.html#reduce-K2-java.util.Iterator-org.apache.hadoop.mapred.OutputCollector-org.apache.hadoop.mapred.Reporter-">reduce</a></span>(<a href="../../../../../org/apache/hadoop/mapred/Reducer.html" title="type parameter in Reducer">K2</a>&nbsp;key,
<a href="https://docs.oracle.com/javase/8/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/Reducer.html" title="type parameter in Reducer">V2</a>&gt;&nbsp;values,
<a href="../../../../../org/apache/hadoop/mapred/OutputCollector.html" title="interface in org.apache.hadoop.mapred">OutputCollector</a>&lt;<a href="../../../../../org/apache/hadoop/mapred/Reducer.html" title="type parameter in Reducer">K3</a>,<a href="../../../../../org/apache/hadoop/mapred/Reducer.html" title="type parameter in Reducer">V3</a>&gt;&nbsp;output,
<a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a>&nbsp;reporter)</code>
<div class="block"><i>Reduces</i> values for a given key.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><span class="typeNameLabel">MapRunnable.</span><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/MapRunnable.html#run-org.apache.hadoop.mapred.RecordReader-org.apache.hadoop.mapred.OutputCollector-org.apache.hadoop.mapred.Reporter-">run</a></span>(<a href="../../../../../org/apache/hadoop/mapred/RecordReader.html" title="interface in org.apache.hadoop.mapred">RecordReader</a>&lt;<a href="../../../../../org/apache/hadoop/mapred/MapRunnable.html" title="type parameter in MapRunnable">K1</a>,<a href="../../../../../org/apache/hadoop/mapred/MapRunnable.html" title="type parameter in MapRunnable">V1</a>&gt;&nbsp;input,
<a href="../../../../../org/apache/hadoop/mapred/OutputCollector.html" title="interface in org.apache.hadoop.mapred">OutputCollector</a>&lt;<a href="../../../../../org/apache/hadoop/mapred/MapRunnable.html" title="type parameter in MapRunnable">K2</a>,<a href="../../../../../org/apache/hadoop/mapred/MapRunnable.html" title="type parameter in MapRunnable">V2</a>&gt;&nbsp;output,
<a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a>&nbsp;reporter)</code>
<div class="block">Start mapping input <tt>&lt;key, value&gt;</tt> pairs.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><span class="typeNameLabel">MapRunner.</span><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/MapRunner.html#run-org.apache.hadoop.mapred.RecordReader-org.apache.hadoop.mapred.OutputCollector-org.apache.hadoop.mapred.Reporter-">run</a></span>(<a href="../../../../../org/apache/hadoop/mapred/RecordReader.html" title="interface in org.apache.hadoop.mapred">RecordReader</a>&lt;<a href="../../../../../org/apache/hadoop/mapred/MapRunner.html" title="type parameter in MapRunner">K1</a>,<a href="../../../../../org/apache/hadoop/mapred/MapRunner.html" title="type parameter in MapRunner">V1</a>&gt;&nbsp;input,
<a href="../../../../../org/apache/hadoop/mapred/OutputCollector.html" title="interface in org.apache.hadoop.mapred">OutputCollector</a>&lt;<a href="../../../../../org/apache/hadoop/mapred/MapRunner.html" title="type parameter in MapRunner">K2</a>,<a href="../../../../../org/apache/hadoop/mapred/MapRunner.html" title="type parameter in MapRunner">V2</a>&gt;&nbsp;output,
<a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a>&nbsp;reporter)</code>&nbsp;</td>
</tr>
</tbody>
</table>
</li>
<li class="blockList"><a name="org.apache.hadoop.mapred.join">
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</a>
<h3>Uses of <a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a> in <a href="../../../../../org/apache/hadoop/mapred/join/package-summary.html">org.apache.hadoop.mapred.join</a></h3>
<table class="useSummary" border="0" cellpadding="3" cellspacing="0" summary="Use table, listing methods, and an explanation">
<caption><span>Methods in <a href="../../../../../org/apache/hadoop/mapred/join/package-summary.html">org.apache.hadoop.mapred.join</a> with parameters of type <a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a></span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
</tr>
<tbody>
<tr class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/hadoop/mapred/join/ComposableRecordReader.html" title="interface in org.apache.hadoop.mapred.join">ComposableRecordReader</a>&lt;<a href="../../../../../org/apache/hadoop/mapred/join/CompositeInputFormat.html" title="type parameter in CompositeInputFormat">K</a>,<a href="../../../../../org/apache/hadoop/mapred/join/TupleWritable.html" title="class in org.apache.hadoop.mapred.join">TupleWritable</a>&gt;</code></td>
<td class="colLast"><span class="typeNameLabel">CompositeInputFormat.</span><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/join/CompositeInputFormat.html#getRecordReader-org.apache.hadoop.mapred.InputSplit-org.apache.hadoop.mapred.JobConf-org.apache.hadoop.mapred.Reporter-">getRecordReader</a></span>(<a href="../../../../../org/apache/hadoop/mapred/InputSplit.html" title="interface in org.apache.hadoop.mapred">InputSplit</a>&nbsp;split,
<a href="../../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</a>&nbsp;job,
<a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a>&nbsp;reporter)</code>
<div class="block">Construct a CompositeRecordReader for the children of this InputFormat
as defined in the init expression.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/hadoop/mapred/join/ComposableRecordReader.html" title="interface in org.apache.hadoop.mapred.join">ComposableRecordReader</a>&lt;<a href="../../../../../org/apache/hadoop/mapred/join/ComposableInputFormat.html" title="type parameter in ComposableInputFormat">K</a>,<a href="../../../../../org/apache/hadoop/mapred/join/ComposableInputFormat.html" title="type parameter in ComposableInputFormat">V</a>&gt;</code></td>
<td class="colLast"><span class="typeNameLabel">ComposableInputFormat.</span><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/join/ComposableInputFormat.html#getRecordReader-org.apache.hadoop.mapred.InputSplit-org.apache.hadoop.mapred.JobConf-org.apache.hadoop.mapred.Reporter-">getRecordReader</a></span>(<a href="../../../../../org/apache/hadoop/mapred/InputSplit.html" title="interface in org.apache.hadoop.mapred">InputSplit</a>&nbsp;split,
<a href="../../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</a>&nbsp;job,
<a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a>&nbsp;reporter)</code>&nbsp;</td>
</tr>
</tbody>
</table>
</li>
<li class="blockList"><a name="org.apache.hadoop.mapred.lib">
<!-- -->
</a>
<h3>Uses of <a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a> in <a href="../../../../../org/apache/hadoop/mapred/lib/package-summary.html">org.apache.hadoop.mapred.lib</a></h3>
<table class="useSummary" border="0" cellpadding="3" cellspacing="0" summary="Use table, listing fields, and an explanation">
<caption><span>Fields in <a href="../../../../../org/apache/hadoop/mapred/lib/package-summary.html">org.apache.hadoop.mapred.lib</a> declared as <a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a></span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Field and Description</th>
</tr>
<tbody>
<tr class="altColor">
<td class="colFirst"><code>protected <a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a></code></td>
<td class="colLast"><span class="typeNameLabel">CombineFileRecordReader.</span><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html#reporter">reporter</a></span></code>&nbsp;</td>
</tr>
</tbody>
</table>
<table class="useSummary" border="0" cellpadding="3" cellspacing="0" summary="Use table, listing methods, and an explanation">
<caption><span>Methods in <a href="../../../../../org/apache/hadoop/mapred/lib/package-summary.html">org.apache.hadoop.mapred.lib</a> with parameters of type <a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a></span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
</tr>
<tbody>
<tr class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/hadoop/mapred/OutputCollector.html" title="interface in org.apache.hadoop.mapred">OutputCollector</a></code></td>
<td class="colLast"><span class="typeNameLabel">MultipleOutputs.</span><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/lib/MultipleOutputs.html#getCollector-java.lang.String-org.apache.hadoop.mapred.Reporter-">getCollector</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;namedOutput,
<a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a>&nbsp;reporter)</code>
<div class="block">Gets the output collector for a named output.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/hadoop/mapred/OutputCollector.html" title="interface in org.apache.hadoop.mapred">OutputCollector</a></code></td>
<td class="colLast"><span class="typeNameLabel">MultipleOutputs.</span><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/lib/MultipleOutputs.html#getCollector-java.lang.String-java.lang.String-org.apache.hadoop.mapred.Reporter-">getCollector</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;namedOutput,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;multiName,
<a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a>&nbsp;reporter)</code>
<div class="block">Gets the output collector for a multi named output.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><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></td>
<td class="colLast"><span class="typeNameLabel">CombineTextInputFormat.</span><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/lib/CombineTextInputFormat.html#getRecordReader-org.apache.hadoop.mapred.InputSplit-org.apache.hadoop.mapred.JobConf-org.apache.hadoop.mapred.Reporter-">getRecordReader</a></span>(<a href="../../../../../org/apache/hadoop/mapred/InputSplit.html" title="interface in org.apache.hadoop.mapred">InputSplit</a>&nbsp;split,
<a href="../../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</a>&nbsp;conf,
<a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a>&nbsp;reporter)</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/hadoop/mapred/RecordReader.html" title="interface in org.apache.hadoop.mapred">RecordReader</a>&lt;<a href="../../../../../org/apache/hadoop/mapred/lib/CombineSequenceFileInputFormat.html" title="type parameter in CombineSequenceFileInputFormat">K</a>,<a href="../../../../../org/apache/hadoop/mapred/lib/CombineSequenceFileInputFormat.html" title="type parameter in CombineSequenceFileInputFormat">V</a>&gt;</code></td>
<td class="colLast"><span class="typeNameLabel">CombineSequenceFileInputFormat.</span><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/lib/CombineSequenceFileInputFormat.html#getRecordReader-org.apache.hadoop.mapred.InputSplit-org.apache.hadoop.mapred.JobConf-org.apache.hadoop.mapred.Reporter-">getRecordReader</a></span>(<a href="../../../../../org/apache/hadoop/mapred/InputSplit.html" title="interface in org.apache.hadoop.mapred">InputSplit</a>&nbsp;split,
<a href="../../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</a>&nbsp;conf,
<a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a>&nbsp;reporter)</code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><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></td>
<td class="colLast"><span class="typeNameLabel">NLineInputFormat.</span><code><span class="memberNameLink"><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></span>(<a href="../../../../../org/apache/hadoop/mapred/InputSplit.html" title="interface in org.apache.hadoop.mapred">InputSplit</a>&nbsp;genericSplit,
<a href="../../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</a>&nbsp;job,
<a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a>&nbsp;reporter)</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>abstract <a href="../../../../../org/apache/hadoop/mapred/RecordReader.html" title="interface in org.apache.hadoop.mapred">RecordReader</a>&lt;<a href="../../../../../org/apache/hadoop/mapred/lib/CombineFileInputFormat.html" title="type parameter in CombineFileInputFormat">K</a>,<a href="../../../../../org/apache/hadoop/mapred/lib/CombineFileInputFormat.html" title="type parameter in CombineFileInputFormat">V</a>&gt;</code></td>
<td class="colLast"><span class="typeNameLabel">CombineFileInputFormat.</span><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/lib/CombineFileInputFormat.html#getRecordReader-org.apache.hadoop.mapred.InputSplit-org.apache.hadoop.mapred.JobConf-org.apache.hadoop.mapred.Reporter-">getRecordReader</a></span>(<a href="../../../../../org/apache/hadoop/mapred/InputSplit.html" title="interface in org.apache.hadoop.mapred">InputSplit</a>&nbsp;split,
<a href="../../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</a>&nbsp;job,
<a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a>&nbsp;reporter)</code>
<div class="block">This is not implemented yet.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><span class="typeNameLabel">RegexMapper.</span><code><span class="memberNameLink"><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></span>(<a href="../../../../../org/apache/hadoop/mapred/lib/RegexMapper.html" title="type parameter in RegexMapper">K</a>&nbsp;key,
<a href="../../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</a>&nbsp;value,
<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,
<a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a>&nbsp;reporter)</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><span class="typeNameLabel">TokenCountMapper.</span><code><span class="memberNameLink"><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></span>(<a href="../../../../../org/apache/hadoop/mapred/lib/TokenCountMapper.html" title="type parameter in TokenCountMapper">K</a>&nbsp;key,
<a href="../../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</a>&nbsp;value,
<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,
<a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a>&nbsp;reporter)</code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><span class="typeNameLabel">IdentityMapper.</span><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/lib/IdentityMapper.html#map-K-V-org.apache.hadoop.mapred.OutputCollector-org.apache.hadoop.mapred.Reporter-">map</a></span>(<a href="../../../../../org/apache/hadoop/mapred/lib/IdentityMapper.html" title="type parameter in IdentityMapper">K</a>&nbsp;key,
<a href="../../../../../org/apache/hadoop/mapred/lib/IdentityMapper.html" title="type parameter in IdentityMapper">V</a>&nbsp;val,
<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/IdentityMapper.html" title="type parameter in IdentityMapper">K</a>,<a href="../../../../../org/apache/hadoop/mapred/lib/IdentityMapper.html" title="type parameter in IdentityMapper">V</a>&gt;&nbsp;output,
<a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a>&nbsp;reporter)</code>
<div class="block">The identity function.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><span class="typeNameLabel">FieldSelectionMapReduce.</span><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/lib/FieldSelectionMapReduce.html#map-K-V-org.apache.hadoop.mapred.OutputCollector-org.apache.hadoop.mapred.Reporter-">map</a></span>(<a href="../../../../../org/apache/hadoop/mapred/lib/FieldSelectionMapReduce.html" title="type parameter in FieldSelectionMapReduce">K</a>&nbsp;key,
<a href="../../../../../org/apache/hadoop/mapred/lib/FieldSelectionMapReduce.html" title="type parameter in FieldSelectionMapReduce">V</a>&nbsp;val,
<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,
<a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a>&nbsp;reporter)</code>
<div class="block">The identify function.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><span class="typeNameLabel">InverseMapper.</span><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/lib/InverseMapper.html#map-K-V-org.apache.hadoop.mapred.OutputCollector-org.apache.hadoop.mapred.Reporter-">map</a></span>(<a href="../../../../../org/apache/hadoop/mapred/lib/InverseMapper.html" title="type parameter in InverseMapper">K</a>&nbsp;key,
<a href="../../../../../org/apache/hadoop/mapred/lib/InverseMapper.html" title="type parameter in InverseMapper">V</a>&nbsp;value,
<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/InverseMapper.html" title="type parameter in InverseMapper">V</a>,<a href="../../../../../org/apache/hadoop/mapred/lib/InverseMapper.html" title="type parameter in InverseMapper">K</a>&gt;&nbsp;output,
<a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a>&nbsp;reporter)</code>
<div class="block">The inverse function.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><span class="typeNameLabel">ChainMapper.</span><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/lib/ChainMapper.html#map-java.lang.Object-java.lang.Object-org.apache.hadoop.mapred.OutputCollector-org.apache.hadoop.mapred.Reporter-">map</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;key,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;value,
<a href="../../../../../org/apache/hadoop/mapred/OutputCollector.html" title="interface in org.apache.hadoop.mapred">OutputCollector</a>&nbsp;output,
<a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a>&nbsp;reporter)</code>
<div class="block">Chains the <code>map(...)</code> methods of the Mappers in the chain.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><span class="typeNameLabel">LongSumReducer.</span><code><span class="memberNameLink"><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></span>(<a href="../../../../../org/apache/hadoop/mapred/lib/LongSumReducer.html" title="type parameter in LongSumReducer">K</a>&nbsp;key,
<a href="https://docs.oracle.com/javase/8/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,
<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,
<a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a>&nbsp;reporter)</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><span class="typeNameLabel">IdentityReducer.</span><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/lib/IdentityReducer.html#reduce-K-java.util.Iterator-org.apache.hadoop.mapred.OutputCollector-org.apache.hadoop.mapred.Reporter-">reduce</a></span>(<a href="../../../../../org/apache/hadoop/mapred/lib/IdentityReducer.html" title="type parameter in IdentityReducer">K</a>&nbsp;key,
<a href="https://docs.oracle.com/javase/8/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/lib/IdentityReducer.html" title="type parameter in IdentityReducer">V</a>&gt;&nbsp;values,
<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/IdentityReducer.html" title="type parameter in IdentityReducer">K</a>,<a href="../../../../../org/apache/hadoop/mapred/lib/IdentityReducer.html" title="type parameter in IdentityReducer">V</a>&gt;&nbsp;output,
<a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a>&nbsp;reporter)</code>
<div class="block">Writes all keys and values directly to output.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><span class="typeNameLabel">ChainReducer.</span><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/lib/ChainReducer.html#reduce-java.lang.Object-java.util.Iterator-org.apache.hadoop.mapred.OutputCollector-org.apache.hadoop.mapred.Reporter-">reduce</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;key,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Iterator.html?is-external=true" title="class or interface in java.util">Iterator</a>&nbsp;values,
<a href="../../../../../org/apache/hadoop/mapred/OutputCollector.html" title="interface in org.apache.hadoop.mapred">OutputCollector</a>&nbsp;output,
<a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a>&nbsp;reporter)</code>
<div class="block">Chains the <code>reduce(...)</code> method of the Reducer with the
<code>map(...) </code> methods of the Mappers in the chain.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><span class="typeNameLabel">FieldSelectionMapReduce.</span><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/lib/FieldSelectionMapReduce.html#reduce-org.apache.hadoop.io.Text-java.util.Iterator-org.apache.hadoop.mapred.OutputCollector-org.apache.hadoop.mapred.Reporter-">reduce</a></span>(<a href="../../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</a>&nbsp;key,
<a href="https://docs.oracle.com/javase/8/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/Text.html" title="class in org.apache.hadoop.io">Text</a>&gt;&nbsp;values,
<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,
<a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a>&nbsp;reporter)</code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><span class="typeNameLabel">MultithreadedMapRunner.</span><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/lib/MultithreadedMapRunner.html#run-org.apache.hadoop.mapred.RecordReader-org.apache.hadoop.mapred.OutputCollector-org.apache.hadoop.mapred.Reporter-">run</a></span>(<a href="../../../../../org/apache/hadoop/mapred/RecordReader.html" title="interface in org.apache.hadoop.mapred">RecordReader</a>&lt;<a href="../../../../../org/apache/hadoop/mapred/lib/MultithreadedMapRunner.html" title="type parameter in MultithreadedMapRunner">K1</a>,<a href="../../../../../org/apache/hadoop/mapred/lib/MultithreadedMapRunner.html" title="type parameter in MultithreadedMapRunner">V1</a>&gt;&nbsp;input,
<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/MultithreadedMapRunner.html" title="type parameter in MultithreadedMapRunner">K2</a>,<a href="../../../../../org/apache/hadoop/mapred/lib/MultithreadedMapRunner.html" title="type parameter in MultithreadedMapRunner">V2</a>&gt;&nbsp;output,
<a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a>&nbsp;reporter)</code>&nbsp;</td>
</tr>
</tbody>
</table>
<table class="useSummary" border="0" cellpadding="3" cellspacing="0" summary="Use table, listing constructors, and an explanation">
<caption><span>Constructors in <a href="../../../../../org/apache/hadoop/mapred/lib/package-summary.html">org.apache.hadoop.mapred.lib</a> with parameters of type <a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a></span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colOne" scope="col">Constructor and Description</th>
</tr>
<tbody>
<tr class="altColor">
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html#CombineFileRecordReader-org.apache.hadoop.mapred.JobConf-org.apache.hadoop.mapred.lib.CombineFileSplit-org.apache.hadoop.mapred.Reporter-java.lang.Class-">CombineFileRecordReader</a></span>(<a href="../../../../../org/apache/hadoop/mapred/JobConf.html" title="class in org.apache.hadoop.mapred">JobConf</a>&nbsp;job,
<a href="../../../../../org/apache/hadoop/mapred/lib/CombineFileSplit.html" title="class in org.apache.hadoop.mapred.lib">CombineFileSplit</a>&nbsp;split,
<a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a>&nbsp;reporter,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a>&lt;<a href="../../../../../org/apache/hadoop/mapred/RecordReader.html" title="interface in org.apache.hadoop.mapred">RecordReader</a>&lt;<a href="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html" title="type parameter in CombineFileRecordReader">K</a>,<a href="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReader.html" title="type parameter in CombineFileRecordReader">V</a>&gt;&gt;&nbsp;rrClass)</code>
<div class="block">A generic RecordReader that can hand out different recordReaders
for each chunk in the CombineFileSplit.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReaderWrapper.html#CombineFileRecordReaderWrapper-org.apache.hadoop.mapred.FileInputFormat-org.apache.hadoop.mapred.lib.CombineFileSplit-org.apache.hadoop.conf.Configuration-org.apache.hadoop.mapred.Reporter-java.lang.Integer-">CombineFileRecordReaderWrapper</a></span>(<a href="../../../../../org/apache/hadoop/mapred/FileInputFormat.html" title="class in org.apache.hadoop.mapred">FileInputFormat</a>&lt;<a href="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReaderWrapper.html" title="type parameter in CombineFileRecordReaderWrapper">K</a>,<a href="../../../../../org/apache/hadoop/mapred/lib/CombineFileRecordReaderWrapper.html" title="type parameter in CombineFileRecordReaderWrapper">V</a>&gt;&nbsp;inputFormat,
<a href="../../../../../org/apache/hadoop/mapred/lib/CombineFileSplit.html" title="class in org.apache.hadoop.mapred.lib">CombineFileSplit</a>&nbsp;split,
<a href="../../../../../org/apache/hadoop/conf/Configuration.html" title="class in org.apache.hadoop.conf">Configuration</a>&nbsp;conf,
<a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a>&nbsp;reporter,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>&nbsp;idx)</code>&nbsp;</td>
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<h3>Uses of <a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a> in <a href="../../../../../org/apache/hadoop/mapred/lib/aggregate/package-summary.html">org.apache.hadoop.mapred.lib.aggregate</a></h3>
<table class="useSummary" border="0" cellpadding="3" cellspacing="0" summary="Use table, listing methods, and an explanation">
<caption><span>Methods in <a href="../../../../../org/apache/hadoop/mapred/lib/aggregate/package-summary.html">org.apache.hadoop.mapred.lib.aggregate</a> with parameters of type <a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a></span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
</tr>
<tbody>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><span class="typeNameLabel">ValueAggregatorMapper.</span><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorMapper.html#map-K1-V1-org.apache.hadoop.mapred.OutputCollector-org.apache.hadoop.mapred.Reporter-">map</a></span>(<a href="../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorMapper.html" title="type parameter in ValueAggregatorMapper">K1</a>&nbsp;key,
<a href="../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorMapper.html" title="type parameter in ValueAggregatorMapper">V1</a>&nbsp;value,
<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,
<a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a>&nbsp;reporter)</code>
<div class="block">the map function.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><span class="typeNameLabel">ValueAggregatorCombiner.</span><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorCombiner.html#map-K1-V1-org.apache.hadoop.mapred.OutputCollector-org.apache.hadoop.mapred.Reporter-">map</a></span>(<a href="../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorCombiner.html" title="type parameter in ValueAggregatorCombiner">K1</a>&nbsp;arg0,
<a href="../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorCombiner.html" title="type parameter in ValueAggregatorCombiner">V1</a>&nbsp;arg1,
<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;arg2,
<a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a>&nbsp;arg3)</code>
<div class="block">Do nothing.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><span class="typeNameLabel">ValueAggregatorReducer.</span><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorReducer.html#map-K1-V1-org.apache.hadoop.mapred.OutputCollector-org.apache.hadoop.mapred.Reporter-">map</a></span>(<a href="../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorReducer.html" title="type parameter in ValueAggregatorReducer">K1</a>&nbsp;arg0,
<a href="../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorReducer.html" title="type parameter in ValueAggregatorReducer">V1</a>&nbsp;arg1,
<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;arg2,
<a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a>&nbsp;arg3)</code>
<div class="block">Do nothing.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><span class="typeNameLabel">ValueAggregatorMapper.</span><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorMapper.html#reduce-org.apache.hadoop.io.Text-java.util.Iterator-org.apache.hadoop.mapred.OutputCollector-org.apache.hadoop.mapred.Reporter-">reduce</a></span>(<a href="../../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</a>&nbsp;arg0,
<a href="https://docs.oracle.com/javase/8/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/Text.html" title="class in org.apache.hadoop.io">Text</a>&gt;&nbsp;arg1,
<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;arg2,
<a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a>&nbsp;arg3)</code>
<div class="block">Do nothing.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><span class="typeNameLabel">ValueAggregatorCombiner.</span><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorCombiner.html#reduce-org.apache.hadoop.io.Text-java.util.Iterator-org.apache.hadoop.mapred.OutputCollector-org.apache.hadoop.mapred.Reporter-">reduce</a></span>(<a href="../../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</a>&nbsp;key,
<a href="https://docs.oracle.com/javase/8/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/Text.html" title="class in org.apache.hadoop.io">Text</a>&gt;&nbsp;values,
<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,
<a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a>&nbsp;reporter)</code>
<div class="block">Combines values for a given key.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><span class="typeNameLabel">ValueAggregatorReducer.</span><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorReducer.html#reduce-org.apache.hadoop.io.Text-java.util.Iterator-org.apache.hadoop.mapred.OutputCollector-org.apache.hadoop.mapred.Reporter-">reduce</a></span>(<a href="../../../../../org/apache/hadoop/io/Text.html" title="class in org.apache.hadoop.io">Text</a>&nbsp;key,
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<h3>Uses of <a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a> in <a href="../../../../../org/apache/hadoop/mapred/lib/db/package-summary.html">org.apache.hadoop.mapred.lib.db</a></h3>
<table class="useSummary" border="0" cellpadding="3" cellspacing="0" summary="Use table, listing methods, and an explanation">
<caption><span>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/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a></span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
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<tbody>
<tr class="altColor">
<td class="colFirst"><code><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></td>
<td class="colLast"><span class="typeNameLabel">DBInputFormat.</span><code><span class="memberNameLink"><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></span>(<a href="../../../../../org/apache/hadoop/mapred/InputSplit.html" title="interface in org.apache.hadoop.mapred">InputSplit</a>&nbsp;split,
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<a href="../../../../../org/apache/hadoop/mapred/Reporter.html" title="interface in org.apache.hadoop.mapred">Reporter</a>&nbsp;reporter)</code>
<div class="block">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>.</div>
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