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| <h2 title="Uses of Interface org.apache.hadoop.mapred.JobConfigurable" class="title">Uses of Interface<br>org.apache.hadoop.mapred.JobConfigurable</h2> |
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| <caption><span>Packages that use <a href="../../../../../org/apache/hadoop/mapred/JobConfigurable.html" title="interface in org.apache.hadoop.mapred">JobConfigurable</a></span><span class="tabEnd"> </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"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="#org.apache.hadoop.mapred.lib">org.apache.hadoop.mapred.lib</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="#org.apache.hadoop.mapred.lib.aggregate">org.apache.hadoop.mapred.lib.aggregate</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="#org.apache.hadoop.mapred.lib.db">org.apache.hadoop.mapred.lib.db</a></td> |
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| <li class="blockList"> |
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| <h3>Uses of <a href="../../../../../org/apache/hadoop/mapred/JobConfigurable.html" title="interface in org.apache.hadoop.mapred">JobConfigurable</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 subinterfaces, and an explanation"> |
| <caption><span>Subinterfaces of <a href="../../../../../org/apache/hadoop/mapred/JobConfigurable.html" title="interface in org.apache.hadoop.mapred">JobConfigurable</a> in <a href="../../../../../org/apache/hadoop/mapred/package-summary.html">org.apache.hadoop.mapred</a></span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Interface and Description</th> |
| </tr> |
| <tbody> |
| <tr class="altColor"> |
| <td class="colFirst"><code>interface </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred">Mapper</a><K1,V1,K2,V2></span></code> |
| <div class="block">Maps input key/value pairs to a set of intermediate key/value pairs.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>interface </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/MapRunnable.html" title="interface in org.apache.hadoop.mapred">MapRunnable</a><K1,V1,K2,V2></span></code> |
| <div class="block">Expert: Generic interface for <a href="../../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred"><code>Mapper</code></a>s.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>interface </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/Partitioner.html" title="interface in org.apache.hadoop.mapred">Partitioner</a><K2,V2></span></code> |
| <div class="block">Partitions the key space.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>interface </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/Reducer.html" title="interface in org.apache.hadoop.mapred">Reducer</a><K2,V2,K3,V3></span></code> |
| <div class="block">Reduces a set of intermediate values which share a key to a smaller set of |
| values.</div> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| <table class="useSummary" border="0" cellpadding="3" cellspacing="0" summary="Use table, listing classes, and an explanation"> |
| <caption><span>Classes in <a href="../../../../../org/apache/hadoop/mapred/package-summary.html">org.apache.hadoop.mapred</a> that implement <a href="../../../../../org/apache/hadoop/mapred/JobConfigurable.html" title="interface in org.apache.hadoop.mapred">JobConfigurable</a></span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Class and Description</th> |
| </tr> |
| <tbody> |
| <tr class="altColor"> |
| <td class="colFirst"><code>class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/FixedLengthInputFormat.html" title="class in org.apache.hadoop.mapred">FixedLengthInputFormat</a></span></code> |
| <div class="block">FixedLengthInputFormat is an input format used to read input files |
| which contain fixed length records.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/KeyValueTextInputFormat.html" title="class in org.apache.hadoop.mapred">KeyValueTextInputFormat</a></span></code> |
| <div class="block">An <a href="../../../../../org/apache/hadoop/mapred/InputFormat.html" title="interface in org.apache.hadoop.mapred"><code>InputFormat</code></a> for plain text files.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/MapReduceBase.html" title="class in org.apache.hadoop.mapred">MapReduceBase</a></span></code> |
| <div class="block">Base class for <a href="../../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred"><code>Mapper</code></a> and <a href="../../../../../org/apache/hadoop/mapred/Reducer.html" title="interface in org.apache.hadoop.mapred"><code>Reducer</code></a> implementations.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/MapRunner.html" title="class in org.apache.hadoop.mapred">MapRunner</a><K1,V1,K2,V2></span></code> |
| <div class="block">Default <a href="../../../../../org/apache/hadoop/mapred/MapRunnable.html" title="interface in org.apache.hadoop.mapred"><code>MapRunnable</code></a> implementation.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/TextInputFormat.html" title="class in org.apache.hadoop.mapred">TextInputFormat</a></span></code> |
| <div class="block">An <a href="../../../../../org/apache/hadoop/mapred/InputFormat.html" title="interface in org.apache.hadoop.mapred"><code>InputFormat</code></a> for plain text files.</div> |
| </td> |
| </tr> |
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| </a> |
| <h3>Uses of <a href="../../../../../org/apache/hadoop/mapred/JobConfigurable.html" title="interface in org.apache.hadoop.mapred">JobConfigurable</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 classes, and an explanation"> |
| <caption><span>Classes in <a href="../../../../../org/apache/hadoop/mapred/lib/package-summary.html">org.apache.hadoop.mapred.lib</a> that implement <a href="../../../../../org/apache/hadoop/mapred/JobConfigurable.html" title="interface in org.apache.hadoop.mapred">JobConfigurable</a></span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Class and Description</th> |
| </tr> |
| <tbody> |
| <tr class="altColor"> |
| <td class="colFirst"><code>class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/lib/BinaryPartitioner.html" title="class in org.apache.hadoop.mapred.lib">BinaryPartitioner</a><V></span></code> |
| <div class="block">Partition <a href="../../../../../org/apache/hadoop/io/BinaryComparable.html" title="class in org.apache.hadoop.io"><code>BinaryComparable</code></a> keys using a configurable part of |
| the bytes array returned by <a href="../../../../../org/apache/hadoop/io/BinaryComparable.html#getBytes--"><code>BinaryComparable.getBytes()</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/lib/ChainMapper.html" title="class in org.apache.hadoop.mapred.lib">ChainMapper</a></span></code> |
| <div class="block">The ChainMapper class allows to use multiple Mapper classes within a single |
| Map task.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/lib/ChainReducer.html" title="class in org.apache.hadoop.mapred.lib">ChainReducer</a></span></code> |
| <div class="block">The ChainReducer class allows to chain multiple Mapper classes after a |
| Reducer within the Reducer task.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/lib/FieldSelectionMapReduce.html" title="class in org.apache.hadoop.mapred.lib">FieldSelectionMapReduce</a><K,V></span></code> |
| <div class="block">This class implements a mapper/reducer class that can be used to perform |
| field selections in a manner similar to unix cut.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/lib/HashPartitioner.html" title="class in org.apache.hadoop.mapred.lib">HashPartitioner</a><K2,V2></span></code> |
| <div class="block">Partition keys by their <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang"><code>Object.hashCode()</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/lib/IdentityMapper.html" title="class in org.apache.hadoop.mapred.lib">IdentityMapper</a><K,V></span></code> |
| <div class="block">Implements the identity function, mapping inputs directly to outputs.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/lib/IdentityReducer.html" title="class in org.apache.hadoop.mapred.lib">IdentityReducer</a><K,V></span></code> |
| <div class="block">Performs no reduction, writing all input values directly to the output.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/lib/InverseMapper.html" title="class in org.apache.hadoop.mapred.lib">InverseMapper</a><K,V></span></code> |
| <div class="block">A <a href="../../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred"><code>Mapper</code></a> that swaps keys and values.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/lib/KeyFieldBasedComparator.html" title="class in org.apache.hadoop.mapred.lib">KeyFieldBasedComparator</a><K,V></span></code> |
| <div class="block">This comparator implementation provides a subset of the features provided |
| by the Unix/GNU Sort.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/lib/KeyFieldBasedPartitioner.html" title="class in org.apache.hadoop.mapred.lib">KeyFieldBasedPartitioner</a><K2,V2></span></code> |
| <div class="block">Defines a way to partition keys based on certain key fields (also see |
| <a href="../../../../../org/apache/hadoop/mapred/lib/KeyFieldBasedComparator.html" title="class in org.apache.hadoop.mapred.lib"><code>KeyFieldBasedComparator</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/lib/LongSumReducer.html" title="class in org.apache.hadoop.mapred.lib">LongSumReducer</a><K></span></code> |
| <div class="block">A <a href="../../../../../org/apache/hadoop/mapred/Reducer.html" title="interface in org.apache.hadoop.mapred"><code>Reducer</code></a> that sums long values.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/lib/MultithreadedMapRunner.html" title="class in org.apache.hadoop.mapred.lib">MultithreadedMapRunner</a><K1,V1,K2,V2></span></code> |
| <div class="block">Multithreaded implementation for <a href="../../../../../org/apache/hadoop/mapred/MapRunnable.html" title="interface in org.apache.hadoop.mapred"><code>MapRunnable</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/lib/NLineInputFormat.html" title="class in org.apache.hadoop.mapred.lib">NLineInputFormat</a></span></code> |
| <div class="block">NLineInputFormat which splits N lines of input as one split.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/lib/RegexMapper.html" title="class in org.apache.hadoop.mapred.lib">RegexMapper</a><K></span></code> |
| <div class="block">A <a href="../../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred"><code>Mapper</code></a> that extracts text matching a regular expression.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/lib/TokenCountMapper.html" title="class in org.apache.hadoop.mapred.lib">TokenCountMapper</a><K></span></code> |
| <div class="block">A <a href="../../../../../org/apache/hadoop/mapred/Mapper.html" title="interface in org.apache.hadoop.mapred"><code>Mapper</code></a> that maps text values into <token,freq> pairs.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/lib/TotalOrderPartitioner.html" title="class in org.apache.hadoop.mapred.lib">TotalOrderPartitioner</a><K,V></span></code> |
| <div class="block">Partitioner effecting a total order by reading split points from |
| an externally generated source.</div> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| </li> |
| <li class="blockList"><a name="org.apache.hadoop.mapred.lib.aggregate"> |
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| <h3>Uses of <a href="../../../../../org/apache/hadoop/mapred/JobConfigurable.html" title="interface in org.apache.hadoop.mapred">JobConfigurable</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 classes, and an explanation"> |
| <caption><span>Classes in <a href="../../../../../org/apache/hadoop/mapred/lib/aggregate/package-summary.html">org.apache.hadoop.mapred.lib.aggregate</a> that implement <a href="../../../../../org/apache/hadoop/mapred/JobConfigurable.html" title="interface in org.apache.hadoop.mapred">JobConfigurable</a></span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Class and Description</th> |
| </tr> |
| <tbody> |
| <tr class="altColor"> |
| <td class="colFirst"><code>class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorCombiner.html" title="class in org.apache.hadoop.mapred.lib.aggregate">ValueAggregatorCombiner</a><K1 extends <a href="../../../../../org/apache/hadoop/io/WritableComparable.html" title="interface in org.apache.hadoop.io">WritableComparable</a>,V1 extends <a href="../../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</a>></span></code> |
| <div class="block">This class implements the generic combiner of Aggregate.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorJobBase.html" title="class in org.apache.hadoop.mapred.lib.aggregate">ValueAggregatorJobBase</a><K1 extends <a href="../../../../../org/apache/hadoop/io/WritableComparable.html" title="interface in org.apache.hadoop.io">WritableComparable</a>,V1 extends <a href="../../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</a>></span></code> |
| <div class="block">This abstract class implements some common functionalities of the |
| the generic mapper, reducer and combiner classes of Aggregate.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorMapper.html" title="class in org.apache.hadoop.mapred.lib.aggregate">ValueAggregatorMapper</a><K1 extends <a href="../../../../../org/apache/hadoop/io/WritableComparable.html" title="interface in org.apache.hadoop.io">WritableComparable</a>,V1 extends <a href="../../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</a>></span></code> |
| <div class="block">This class implements the generic mapper of Aggregate.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/mapred/lib/aggregate/ValueAggregatorReducer.html" title="class in org.apache.hadoop.mapred.lib.aggregate">ValueAggregatorReducer</a><K1 extends <a href="../../../../../org/apache/hadoop/io/WritableComparable.html" title="interface in org.apache.hadoop.io">WritableComparable</a>,V1 extends <a href="../../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</a>></span></code> |
| <div class="block">This class implements the generic reducer of Aggregate.</div> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| </li> |
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| <h3>Uses of <a href="../../../../../org/apache/hadoop/mapred/JobConfigurable.html" title="interface in org.apache.hadoop.mapred">JobConfigurable</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 classes, and an explanation"> |
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