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| <li>Summary: </li> |
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| <div class="subTitle">org.apache.pirk.responder.wideskies.mapreduce</div> |
| <h2 title="Class HashSelectorsAndPartitionDataMapper" class="title">Class HashSelectorsAndPartitionDataMapper</h2> |
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| <ul class="inheritance"> |
| <li>java.lang.Object</li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.Text,org.apache.hadoop.io.MapWritable,org.apache.hadoop.io.IntWritable,<a href="../../../../../../org/apache/pirk/inputformat/hadoop/BytesArrayWritable.html" title="class in org.apache.pirk.inputformat.hadoop">BytesArrayWritable</a>></li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.pirk.responder.wideskies.mapreduce.HashSelectorsAndPartitionDataMapper</li> |
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| <pre>public class <span class="strong">HashSelectorsAndPartitionDataMapper</span> |
| extends org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.Text,org.apache.hadoop.io.MapWritable,org.apache.hadoop.io.IntWritable,<a href="../../../../../../org/apache/pirk/inputformat/hadoop/BytesArrayWritable.html" title="class in org.apache.pirk.inputformat.hadoop">BytesArrayWritable</a>></pre> |
| <div class="block">Initialization mapper for PIR |
| <p> |
| Reads in data, extracts the selector by queryType from each dataElement, performs a keyed hash of the selector, extracts the partitions of the dataElement, |
| and emits <hash(selector), dataPartitions></div> |
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| <h3>Nested classes/interfaces inherited from class org.apache.hadoop.mapreduce.Mapper</h3> |
| <code>org.apache.hadoop.mapreduce.Mapper.Context</code></li> |
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| <th class="colOne" scope="col">Constructor and Description</th> |
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| <td class="colOne"><code><strong><a href="../../../../../../org/apache/pirk/responder/wideskies/mapreduce/HashSelectorsAndPartitionDataMapper.html#HashSelectorsAndPartitionDataMapper()">HashSelectorsAndPartitionDataMapper</a></strong>()</code> </td> |
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| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../../org/apache/pirk/responder/wideskies/mapreduce/HashSelectorsAndPartitionDataMapper.html#cleanup(org.apache.hadoop.mapreduce.Mapper.Context)">cleanup</a></strong>(org.apache.hadoop.mapreduce.Mapper.Context ctx)</code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../../org/apache/pirk/responder/wideskies/mapreduce/HashSelectorsAndPartitionDataMapper.html#map(org.apache.hadoop.io.Text,%20org.apache.hadoop.io.MapWritable,%20org.apache.hadoop.mapreduce.Mapper.Context)">map</a></strong>(org.apache.hadoop.io.Text key, |
| org.apache.hadoop.io.MapWritable value, |
| org.apache.hadoop.mapreduce.Mapper.Context ctx)</code> |
| <div class="block">The key is the docID/line number and the value is the doc</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../../org/apache/pirk/responder/wideskies/mapreduce/HashSelectorsAndPartitionDataMapper.html#setup(org.apache.hadoop.mapreduce.Mapper.Context)">setup</a></strong>(org.apache.hadoop.mapreduce.Mapper.Context ctx)</code> </td> |
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| <code>run</code></li> |
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| <h4>HashSelectorsAndPartitionDataMapper</h4> |
| <pre>public HashSelectorsAndPartitionDataMapper()</pre> |
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| <h4>setup</h4> |
| <pre>public void setup(org.apache.hadoop.mapreduce.Mapper.Context ctx) |
| throws java.io.IOException, |
| java.lang.InterruptedException</pre> |
| <dl> |
| <dt><strong>Overrides:</strong></dt> |
| <dd><code>setup</code> in class <code>org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.Text,org.apache.hadoop.io.MapWritable,org.apache.hadoop.io.IntWritable,<a href="../../../../../../org/apache/pirk/inputformat/hadoop/BytesArrayWritable.html" title="class in org.apache.pirk.inputformat.hadoop">BytesArrayWritable</a>></code></dd> |
| <dt><span class="strong">Throws:</span></dt> |
| <dd><code>java.io.IOException</code></dd> |
| <dd><code>java.lang.InterruptedException</code></dd></dl> |
| </li> |
| </ul> |
| <a name="map(org.apache.hadoop.io.Text, org.apache.hadoop.io.MapWritable, org.apache.hadoop.mapreduce.Mapper.Context)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>map</h4> |
| <pre>public void map(org.apache.hadoop.io.Text key, |
| org.apache.hadoop.io.MapWritable value, |
| org.apache.hadoop.mapreduce.Mapper.Context ctx) |
| throws java.io.IOException, |
| java.lang.InterruptedException</pre> |
| <div class="block">The key is the docID/line number and the value is the doc</div> |
| <dl> |
| <dt><strong>Overrides:</strong></dt> |
| <dd><code>map</code> in class <code>org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.Text,org.apache.hadoop.io.MapWritable,org.apache.hadoop.io.IntWritable,<a href="../../../../../../org/apache/pirk/inputformat/hadoop/BytesArrayWritable.html" title="class in org.apache.pirk.inputformat.hadoop">BytesArrayWritable</a>></code></dd> |
| <dt><span class="strong">Throws:</span></dt> |
| <dd><code>java.io.IOException</code></dd> |
| <dd><code>java.lang.InterruptedException</code></dd></dl> |
| </li> |
| </ul> |
| <a name="cleanup(org.apache.hadoop.mapreduce.Mapper.Context)"> |
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| <h4>cleanup</h4> |
| <pre>public void cleanup(org.apache.hadoop.mapreduce.Mapper.Context ctx) |
| throws java.io.IOException, |
| java.lang.InterruptedException</pre> |
| <dl> |
| <dt><strong>Overrides:</strong></dt> |
| <dd><code>cleanup</code> in class <code>org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.Text,org.apache.hadoop.io.MapWritable,org.apache.hadoop.io.IntWritable,<a href="../../../../../../org/apache/pirk/inputformat/hadoop/BytesArrayWritable.html" title="class in org.apache.pirk.inputformat.hadoop">BytesArrayWritable</a>></code></dd> |
| <dt><span class="strong">Throws:</span></dt> |
| <dd><code>java.io.IOException</code></dd> |
| <dd><code>java.lang.InterruptedException</code></dd></dl> |
| </li> |
| </ul> |
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