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<h2 title="Class TableInputFormat" class="title">Class TableInputFormat</h2>
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<li>org.apache.hadoop.hbase.mapred.TableInputFormat</li>
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<dt>All Implemented Interfaces:</dt>
<dd>org.apache.hadoop.mapred.InputFormat&lt;<a href="../../../../../org/apache/hadoop/hbase/io/ImmutableBytesWritable.html" title="class in org.apache.hadoop.hbase.io">ImmutableBytesWritable</a>,<a href="../../../../../org/apache/hadoop/hbase/client/Result.html" title="class in org.apache.hadoop.hbase.client">Result</a>&gt;, org.apache.hadoop.mapred.JobConfigurable</dd>
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<pre>@InterfaceAudience.Public
public class <a href="../../../../../src-html/org/apache/hadoop/hbase/mapred/TableInputFormat.html#line.40">TableInputFormat</a>
extends <a href="../../../../../org/apache/hadoop/hbase/mapred/TableInputFormatBase.html" title="class in org.apache.hadoop.hbase.mapred">TableInputFormatBase</a>
implements org.apache.hadoop.mapred.JobConfigurable</pre>
<div class="block">Convert HBase tabular data into a format that is consumable by Map/Reduce.</div>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/mapred/TableInputFormat.html#COLUMN_LIST">COLUMN_LIST</a></span></code>
<div class="block">space delimited list of columns</div>
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<td class="colFirst"><code>private static org.slf4j.Logger</code></td>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/mapred/TableInputFormat.html#TableInputFormat--">TableInputFormat</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/mapred/TableInputFormat.html#configure-org.apache.hadoop.mapred.JobConf-">configure</a></span>(org.apache.hadoop.mapred.JobConf&nbsp;job)</code>&nbsp;</td>
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<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/mapred/TableInputFormat.html#initialize-org.apache.hadoop.mapred.JobConf-">initialize</a></span>(org.apache.hadoop.mapred.JobConf&nbsp;job)</code>
<div class="block">Handle subclass specific set up.</div>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/mapred/TableInputFormat.html#validateInput-org.apache.hadoop.mapred.JobConf-">validateInput</a></span>(org.apache.hadoop.mapred.JobConf&nbsp;job)</code>&nbsp;</td>
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<pre>private static final&nbsp;org.slf4j.Logger <a href="../../../../../src-html/org/apache/hadoop/hbase/mapred/TableInputFormat.html#line.42">LOG</a></pre>
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<pre>public&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/mapred/TableInputFormat.html#line.40">TableInputFormat</a>()</pre>
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<pre>public&nbsp;void&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/mapred/TableInputFormat.html#line.49">configure</a>(org.apache.hadoop.mapred.JobConf&nbsp;job)</pre>
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<pre>protected&nbsp;void&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/mapred/TableInputFormat.html#line.58">initialize</a>(org.apache.hadoop.mapred.JobConf&nbsp;job)
throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/mapred/TableInputFormatBase.html#initialize-org.apache.hadoop.mapred.JobConf-">TableInputFormatBase</a></code></span></div>
<div class="block">Handle subclass specific set up.
Each of the entry points used by the MapReduce framework,
<a href="../../../../../org/apache/hadoop/hbase/mapred/TableInputFormatBase.html#getRecordReader-org.apache.hadoop.mapred.InputSplit-org.apache.hadoop.mapred.JobConf-org.apache.hadoop.mapred.Reporter-"><code>TableInputFormatBase.getRecordReader(InputSplit, JobConf, Reporter)</code></a> and <a href="../../../../../org/apache/hadoop/hbase/mapred/TableInputFormatBase.html#getSplits-org.apache.hadoop.mapred.JobConf-int-"><code>TableInputFormatBase.getSplits(JobConf, int)</code></a>,
will call <a href="../../../../../org/apache/hadoop/hbase/mapred/TableInputFormatBase.html#initialize-org.apache.hadoop.mapred.JobConf-"><code>TableInputFormatBase.initialize(JobConf)</code></a> as a convenient centralized location to handle
retrieving the necessary configuration information and calling
<a href="../../../../../org/apache/hadoop/hbase/mapred/TableInputFormatBase.html#initializeTable-org.apache.hadoop.hbase.client.Connection-org.apache.hadoop.hbase.TableName-"><code>TableInputFormatBase.initializeTable(Connection, TableName)</code></a>.
Subclasses should implement their initialize call such that it is safe to call multiple times.
The current TableInputFormatBase implementation relies on a non-null table reference to decide
if an initialize call is needed, but this behavior may change in the future. In particular,
it is critical that initializeTable not be called multiple times since this will leak
Connection instances.</div>
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<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="../../../../../org/apache/hadoop/hbase/mapred/TableInputFormatBase.html#initialize-org.apache.hadoop.mapred.JobConf-">initialize</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/mapred/TableInputFormatBase.html" title="class in org.apache.hadoop.hbase.mapred">TableInputFormatBase</a></code></dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
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<pre>public&nbsp;void&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/mapred/TableInputFormat.html#line.71">validateInput</a>(org.apache.hadoop.mapred.JobConf&nbsp;job)
throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
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<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
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