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| <div class="subTitle">org.apache.hadoop.mapreduce.lib.output</div> |
| <h2 title="Class SequenceFileAsBinaryOutputFormat" class="title">Class SequenceFileAsBinaryOutputFormat</h2> |
| </div> |
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| <ul class="inheritance"> |
| <li><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li><a href="../../../../../../org/apache/hadoop/mapreduce/OutputFormat.html" title="class in org.apache.hadoop.mapreduce">org.apache.hadoop.mapreduce.OutputFormat</a><K,V></li> |
| <li> |
| <ul class="inheritance"> |
| <li><a href="../../../../../../org/apache/hadoop/mapreduce/lib/output/FileOutputFormat.html" title="class in org.apache.hadoop.mapreduce.lib.output">org.apache.hadoop.mapreduce.lib.output.FileOutputFormat</a><K,V></li> |
| <li> |
| <ul class="inheritance"> |
| <li><a href="../../../../../../org/apache/hadoop/mapreduce/lib/output/SequenceFileOutputFormat.html" title="class in org.apache.hadoop.mapreduce.lib.output">org.apache.hadoop.mapreduce.lib.output.SequenceFileOutputFormat</a><<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>></li> |
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| <li>org.apache.hadoop.mapreduce.lib.output.SequenceFileAsBinaryOutputFormat</li> |
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| <pre>@InterfaceAudience.Public |
| @InterfaceStability.Stable |
| public class <span class="typeNameLabel">SequenceFileAsBinaryOutputFormat</span> |
| extends <a href="../../../../../../org/apache/hadoop/mapreduce/lib/output/SequenceFileOutputFormat.html" title="class in org.apache.hadoop.mapreduce.lib.output">SequenceFileOutputFormat</a><<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>></pre> |
| <div class="block">An <a href="../../../../../../org/apache/hadoop/mapreduce/OutputFormat.html" title="class in org.apache.hadoop.mapreduce"><code>OutputFormat</code></a> that writes keys, |
| values to <a href="../../../../../../org/apache/hadoop/io/SequenceFile.html" title="class in org.apache.hadoop.io"><code>SequenceFile</code></a>s in binary(raw) format</div> |
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| <tr class="altColor"> |
| <td class="colFirst"><code>static <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></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/mapreduce/lib/output/SequenceFileAsBinaryOutputFormat.html#KEY_CLASS">KEY_CLASS</a></span></code> </td> |
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| <tr class="rowColor"> |
| <td class="colFirst"><code>static <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></code></td> |
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| <h3>Fields inherited from class org.apache.hadoop.mapreduce.lib.output.<a href="../../../../../../org/apache/hadoop/mapreduce/lib/output/FileOutputFormat.html" title="class in org.apache.hadoop.mapreduce.lib.output">FileOutputFormat</a></h3> |
| <code><a href="../../../../../../org/apache/hadoop/mapreduce/lib/output/FileOutputFormat.html#BASE_OUTPUT_NAME">BASE_OUTPUT_NAME</a>, <a href="../../../../../../org/apache/hadoop/mapreduce/lib/output/FileOutputFormat.html#COMPRESS">COMPRESS</a>, <a href="../../../../../../org/apache/hadoop/mapreduce/lib/output/FileOutputFormat.html#COMPRESS_CODEC">COMPRESS_CODEC</a>, <a href="../../../../../../org/apache/hadoop/mapreduce/lib/output/FileOutputFormat.html#COMPRESS_TYPE">COMPRESS_TYPE</a>, <a href="../../../../../../org/apache/hadoop/mapreduce/lib/output/FileOutputFormat.html#OUTDIR">OUTDIR</a>, <a href="../../../../../../org/apache/hadoop/mapreduce/lib/output/FileOutputFormat.html#PART">PART</a></code></li> |
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| <th class="colOne" scope="col">Constructor and Description</th> |
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| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/mapreduce/lib/output/SequenceFileAsBinaryOutputFormat.html#SequenceFileAsBinaryOutputFormat--">SequenceFileAsBinaryOutputFormat</a></span>()</code> </td> |
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| <h3>Method Summary</h3> |
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| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
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| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/mapreduce/lib/output/SequenceFileAsBinaryOutputFormat.html#checkOutputSpecs-org.apache.hadoop.mapreduce.JobContext-">checkOutputSpecs</a></span>(<a href="../../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="interface in org.apache.hadoop.mapreduce">JobContext</a> job)</code> |
| <div class="block">Check for validity of the output-specification for the job.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/hadoop/mapreduce/RecordWriter.html" title="class in org.apache.hadoop.mapreduce">RecordWriter</a><<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>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/mapreduce/lib/output/SequenceFileAsBinaryOutputFormat.html#getRecordWriter-org.apache.hadoop.mapreduce.TaskAttemptContext-">getRecordWriter</a></span>(<a href="../../../../../../org/apache/hadoop/mapreduce/TaskAttemptContext.html" title="interface in org.apache.hadoop.mapreduce">TaskAttemptContext</a> context)</code> |
| <div class="block">Get the <a href="../../../../../../org/apache/hadoop/mapreduce/RecordWriter.html" title="class in org.apache.hadoop.mapreduce"><code>RecordWriter</code></a> for the given task.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>static <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><? extends <a href="../../../../../../org/apache/hadoop/io/WritableComparable.html" title="interface in org.apache.hadoop.io">WritableComparable</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/mapreduce/lib/output/SequenceFileAsBinaryOutputFormat.html#getSequenceFileOutputKeyClass-org.apache.hadoop.mapreduce.JobContext-">getSequenceFileOutputKeyClass</a></span>(<a href="../../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="interface in org.apache.hadoop.mapreduce">JobContext</a> job)</code> |
| <div class="block">Get the key class for the <a href="../../../../../../org/apache/hadoop/io/SequenceFile.html" title="class in org.apache.hadoop.io"><code>SequenceFile</code></a></div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>static <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><? extends <a href="../../../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/mapreduce/lib/output/SequenceFileAsBinaryOutputFormat.html#getSequenceFileOutputValueClass-org.apache.hadoop.mapreduce.JobContext-">getSequenceFileOutputValueClass</a></span>(<a href="../../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="interface in org.apache.hadoop.mapreduce">JobContext</a> job)</code> |
| <div class="block">Get the value class for the <a href="../../../../../../org/apache/hadoop/io/SequenceFile.html" title="class in org.apache.hadoop.io"><code>SequenceFile</code></a></div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>static void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/mapreduce/lib/output/SequenceFileAsBinaryOutputFormat.html#setSequenceFileOutputKeyClass-org.apache.hadoop.mapreduce.Job-java.lang.Class-">setSequenceFileOutputKeyClass</a></span>(<a href="../../../../../../org/apache/hadoop/mapreduce/Job.html" title="class in org.apache.hadoop.mapreduce">Job</a> job, |
| <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><?> theClass)</code> |
| <div class="block">Set the key class for the <a href="../../../../../../org/apache/hadoop/io/SequenceFile.html" title="class in org.apache.hadoop.io"><code>SequenceFile</code></a></div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>static void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/mapreduce/lib/output/SequenceFileAsBinaryOutputFormat.html#setSequenceFileOutputValueClass-org.apache.hadoop.mapreduce.Job-java.lang.Class-">setSequenceFileOutputValueClass</a></span>(<a href="../../../../../../org/apache/hadoop/mapreduce/Job.html" title="class in org.apache.hadoop.mapreduce">Job</a> job, |
| <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><?> theClass)</code> |
| <div class="block">Set the value class for the <a href="../../../../../../org/apache/hadoop/io/SequenceFile.html" title="class in org.apache.hadoop.io"><code>SequenceFile</code></a></div> |
| </td> |
| </tr> |
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| <li class="blockList"><a name="methods.inherited.from.class.org.apache.hadoop.mapreduce.lib.output.SequenceFileOutputFormat"> |
| <!-- --> |
| </a> |
| <h3>Methods inherited from class org.apache.hadoop.mapreduce.lib.output.<a href="../../../../../../org/apache/hadoop/mapreduce/lib/output/SequenceFileOutputFormat.html" title="class in org.apache.hadoop.mapreduce.lib.output">SequenceFileOutputFormat</a></h3> |
| <code><a href="../../../../../../org/apache/hadoop/mapreduce/lib/output/SequenceFileOutputFormat.html#getOutputCompressionType-org.apache.hadoop.mapreduce.JobContext-">getOutputCompressionType</a>, <a href="../../../../../../org/apache/hadoop/mapreduce/lib/output/SequenceFileOutputFormat.html#getSequenceWriter-org.apache.hadoop.mapreduce.TaskAttemptContext-java.lang.Class-java.lang.Class-">getSequenceWriter</a>, <a href="../../../../../../org/apache/hadoop/mapreduce/lib/output/SequenceFileOutputFormat.html#setOutputCompressionType-org.apache.hadoop.mapreduce.Job-org.apache.hadoop.io.SequenceFile.CompressionType-">setOutputCompressionType</a></code></li> |
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| <h3>Methods inherited from class org.apache.hadoop.mapreduce.lib.output.<a href="../../../../../../org/apache/hadoop/mapreduce/lib/output/FileOutputFormat.html" title="class in org.apache.hadoop.mapreduce.lib.output">FileOutputFormat</a></h3> |
| <code><a href="../../../../../../org/apache/hadoop/mapreduce/lib/output/FileOutputFormat.html#getCompressOutput-org.apache.hadoop.mapreduce.JobContext-">getCompressOutput</a>, <a href="../../../../../../org/apache/hadoop/mapreduce/lib/output/FileOutputFormat.html#getDefaultWorkFile-org.apache.hadoop.mapreduce.TaskAttemptContext-java.lang.String-">getDefaultWorkFile</a>, <a href="../../../../../../org/apache/hadoop/mapreduce/lib/output/FileOutputFormat.html#getOutputCommitter-org.apache.hadoop.mapreduce.TaskAttemptContext-">getOutputCommitter</a>, <a href="../../../../../../org/apache/hadoop/mapreduce/lib/output/FileOutputFormat.html#getOutputCompressorClass-org.apache.hadoop.mapreduce.JobContext-java.lang.Class-">getOutputCompressorClass</a>, <a href="../../../../../../org/apache/hadoop/mapreduce/lib/output/FileOutputFormat.html#getOutputName-org.apache.hadoop.mapreduce.JobContext-">getOutputName</a>, <a href="../../../../../../org/apache/hadoop/mapreduce/lib/output/FileOutputFormat.html#getOutputPath-org.apache.hadoop.mapreduce.JobContext-">getOutputPath</a>, <a href="../../../../../../org/apache/hadoop/mapreduce/lib/output/FileOutputFormat.html#getPathForWorkFile-org.apache.hadoop.mapreduce.TaskInputOutputContext-java.lang.String-java.lang.String-">getPathForWorkFile</a>, <a href="../../../../../../org/apache/hadoop/mapreduce/lib/output/FileOutputFormat.html#getUniqueFile-org.apache.hadoop.mapreduce.TaskAttemptContext-java.lang.String-java.lang.String-">getUniqueFile</a>, <a href="../../../../../../org/apache/hadoop/mapreduce/lib/output/FileOutputFormat.html#getWorkOutputPath-org.apache.hadoop.mapreduce.TaskInputOutputContext-">getWorkOutputPath</a>, <a href="../../../../../../org/apache/hadoop/mapreduce/lib/output/FileOutputFormat.html#setCompressOutput-org.apache.hadoop.mapreduce.Job-boolean-">setCompressOutput</a>, <a href="../../../../../../org/apache/hadoop/mapreduce/lib/output/FileOutputFormat.html#setOutputCompressorClass-org.apache.hadoop.mapreduce.Job-java.lang.Class-">setOutputCompressorClass</a>, <a href="../../../../../../org/apache/hadoop/mapreduce/lib/output/FileOutputFormat.html#setOutputName-org.apache.hadoop.mapreduce.JobContext-java.lang.String-">setOutputName</a>, <a href="../../../../../../org/apache/hadoop/mapreduce/lib/output/FileOutputFormat.html#setOutputPath-org.apache.hadoop.mapreduce.Job-org.apache.hadoop.fs.Path-">setOutputPath</a></code></li> |
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| <h3>Method Detail</h3> |
| <a name="setSequenceFileOutputKeyClass-org.apache.hadoop.mapreduce.Job-java.lang.Class-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>setSequenceFileOutputKeyClass</h4> |
| <pre>public static void setSequenceFileOutputKeyClass(<a href="../../../../../../org/apache/hadoop/mapreduce/Job.html" title="class in org.apache.hadoop.mapreduce">Job</a> job, |
| <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><?> theClass)</pre> |
| <div class="block">Set the key class for the <a href="../../../../../../org/apache/hadoop/io/SequenceFile.html" title="class in org.apache.hadoop.io"><code>SequenceFile</code></a> |
| <p>This allows the user to specify the key class to be different |
| from the actual class (<a href="../../../../../../org/apache/hadoop/io/BytesWritable.html" title="class in org.apache.hadoop.io"><code>BytesWritable</code></a>) used for writing </p></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>job</code> - the <a href="../../../../../../org/apache/hadoop/mapreduce/Job.html" title="class in org.apache.hadoop.mapreduce"><code>Job</code></a> to modify</dd> |
| <dd><code>theClass</code> - the SequenceFile output key class.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="setSequenceFileOutputValueClass-org.apache.hadoop.mapreduce.Job-java.lang.Class-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>setSequenceFileOutputValueClass</h4> |
| <pre>public static void setSequenceFileOutputValueClass(<a href="../../../../../../org/apache/hadoop/mapreduce/Job.html" title="class in org.apache.hadoop.mapreduce">Job</a> job, |
| <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><?> theClass)</pre> |
| <div class="block">Set the value class for the <a href="../../../../../../org/apache/hadoop/io/SequenceFile.html" title="class in org.apache.hadoop.io"><code>SequenceFile</code></a> |
| <p>This allows the user to specify the value class to be different |
| from the actual class (<a href="../../../../../../org/apache/hadoop/io/BytesWritable.html" title="class in org.apache.hadoop.io"><code>BytesWritable</code></a>) used for writing </p></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>job</code> - the <a href="../../../../../../org/apache/hadoop/mapreduce/Job.html" title="class in org.apache.hadoop.mapreduce"><code>Job</code></a> to modify</dd> |
| <dd><code>theClass</code> - the SequenceFile output key class.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getSequenceFileOutputKeyClass-org.apache.hadoop.mapreduce.JobContext-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getSequenceFileOutputKeyClass</h4> |
| <pre>public static <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><? extends <a href="../../../../../../org/apache/hadoop/io/WritableComparable.html" title="interface in org.apache.hadoop.io">WritableComparable</a>> getSequenceFileOutputKeyClass(<a href="../../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="interface in org.apache.hadoop.mapreduce">JobContext</a> job)</pre> |
| <div class="block">Get the key class for the <a href="../../../../../../org/apache/hadoop/io/SequenceFile.html" title="class in org.apache.hadoop.io"><code>SequenceFile</code></a></div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the key class of the <a href="../../../../../../org/apache/hadoop/io/SequenceFile.html" title="class in org.apache.hadoop.io"><code>SequenceFile</code></a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getSequenceFileOutputValueClass-org.apache.hadoop.mapreduce.JobContext-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getSequenceFileOutputValueClass</h4> |
| <pre>public static <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><? extends <a href="../../../../../../org/apache/hadoop/io/Writable.html" title="interface in org.apache.hadoop.io">Writable</a>> getSequenceFileOutputValueClass(<a href="../../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="interface in org.apache.hadoop.mapreduce">JobContext</a> job)</pre> |
| <div class="block">Get the value class for the <a href="../../../../../../org/apache/hadoop/io/SequenceFile.html" title="class in org.apache.hadoop.io"><code>SequenceFile</code></a></div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the value class of the <a href="../../../../../../org/apache/hadoop/io/SequenceFile.html" title="class in org.apache.hadoop.io"><code>SequenceFile</code></a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getRecordWriter-org.apache.hadoop.mapreduce.TaskAttemptContext-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getRecordWriter</h4> |
| <pre>public <a href="../../../../../../org/apache/hadoop/mapreduce/RecordWriter.html" title="class in org.apache.hadoop.mapreduce">RecordWriter</a><<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>> getRecordWriter(<a href="../../../../../../org/apache/hadoop/mapreduce/TaskAttemptContext.html" title="interface in org.apache.hadoop.mapreduce">TaskAttemptContext</a> context) |
| 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: <code><a href="../../../../../../org/apache/hadoop/mapreduce/OutputFormat.html#getRecordWriter-org.apache.hadoop.mapreduce.TaskAttemptContext-">OutputFormat</a></code></span></div> |
| <div class="block">Get the <a href="../../../../../../org/apache/hadoop/mapreduce/RecordWriter.html" title="class in org.apache.hadoop.mapreduce"><code>RecordWriter</code></a> for the given task.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/hadoop/mapreduce/lib/output/SequenceFileOutputFormat.html#getRecordWriter-org.apache.hadoop.mapreduce.TaskAttemptContext-">getRecordWriter</a></code> in class <code><a href="../../../../../../org/apache/hadoop/mapreduce/lib/output/SequenceFileOutputFormat.html" title="class in org.apache.hadoop.mapreduce.lib.output">SequenceFileOutputFormat</a><<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>></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>context</code> - the information about the current task.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a <a href="../../../../../../org/apache/hadoop/mapreduce/RecordWriter.html" title="class in org.apache.hadoop.mapreduce"><code>RecordWriter</code></a> to write the output for the job.</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> |
| </dl> |
| </li> |
| </ul> |
| <a name="checkOutputSpecs-org.apache.hadoop.mapreduce.JobContext-"> |
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| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>checkOutputSpecs</h4> |
| <pre>public void checkOutputSpecs(<a href="../../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="interface in org.apache.hadoop.mapreduce">JobContext</a> 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: <code><a href="../../../../../../org/apache/hadoop/mapreduce/OutputFormat.html#checkOutputSpecs-org.apache.hadoop.mapreduce.JobContext-">OutputFormat</a></code></span></div> |
| <div class="block">Check for validity of the output-specification for the job. |
| |
| <p>This is to validate the output specification for the job when it is |
| a job is submitted. Typically checks that it does not already exist, |
| throwing an exception when it already exists, so that output is not |
| overwritten.</p> |
| |
| Implementations which write to filesystems which support delegation |
| tokens usually collect the tokens for the destination path(s) |
| and attach them to the job context's JobConf.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/hadoop/mapreduce/lib/output/FileOutputFormat.html#checkOutputSpecs-org.apache.hadoop.mapreduce.JobContext-">checkOutputSpecs</a></code> in class <code><a href="../../../../../../org/apache/hadoop/mapreduce/lib/output/FileOutputFormat.html" title="class in org.apache.hadoop.mapreduce.lib.output">FileOutputFormat</a><<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>></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>job</code> - information about the job</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> - when output should not be attempted</dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
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