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<div class="subTitle">org.apache.hadoop.hive.ql.exec.vector</div>
<h2 title="Class VectorizedRowBatch" class="title">Class VectorizedRowBatch</h2>
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<li>org.apache.hadoop.hive.ql.exec.vector.VectorizedRowBatch</li>
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<dt>All Implemented Interfaces:</dt>
<dd>org.apache.hadoop.io.Writable</dd>
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<pre>public class <span class="typeNameLabel">VectorizedRowBatch</span>
extends <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>
implements org.apache.hadoop.io.Writable</pre>
<div class="block">A VectorizedRowBatch is a set of rows, organized with each column
 as a vector. It is the unit of query execution, organized to minimize
 the cost per row and achieve high cycles-per-instruction.
 The major fields are public by design to allow fast and convenient
 access by the vectorized query execution code.</div>
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<h3>Field Summary</h3>
<table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Field Summary table, listing fields, and an explanation">
<caption><span>Fields</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>
<tr class="altColor">
<td class="colFirst"><code><a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/ColumnVector.html" title="class in org.apache.hadoop.hive.ql.exec.vector">ColumnVector</a>[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/VectorizedRowBatch.html#cols">cols</a></span></code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/VectorizedRowBatch.html#DEFAULT_SIZE">DEFAULT_SIZE</a></span></code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/VectorizedRowBatch.html#endOfFile">endOfFile</a></span></code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/VectorizedRowBatch.html#numCols">numCols</a></span></code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>int[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/VectorizedRowBatch.html#projectedColumns">projectedColumns</a></span></code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/VectorizedRowBatch.html#projectionSize">projectionSize</a></span></code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>int[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/VectorizedRowBatch.html#selected">selected</a></span></code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/VectorizedRowBatch.html#selectedInUse">selectedInUse</a></span></code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/VectorizedRowBatch.html#size">size</a></span></code>&nbsp;</td>
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<th class="colOne" scope="col">Constructor and Description</th>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/VectorizedRowBatch.html#VectorizedRowBatch-int-">VectorizedRowBatch</a></span>(int&nbsp;numCols)</code>
<div class="block">Return a batch with the specified number of columns.</div>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/VectorizedRowBatch.html#VectorizedRowBatch-int-int-">VectorizedRowBatch</a></span>(int&nbsp;numCols,
                  int&nbsp;size)</code>
<div class="block">Return a batch with the specified number of columns and rows.</div>
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<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
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<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/VectorizedRowBatch.html#count--">count</a></span>()</code>
<div class="block">Return count of qualifying rows.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/VectorizedRowBatch.html#ensureSize-int-">ensureSize</a></span>(int&nbsp;rows)</code>
<div class="block">Set the maximum number of rows in the batch.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/VectorizedRowBatch.html#getDataColumnCount--">getDataColumnCount</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/VectorizedRowBatch.html#getMaxSize--">getMaxSize</a></span>()</code>
<div class="block">Returns the maximum size of the batch (number of rows it can hold)</div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/VectorizedRowBatch.html#getPartitionColumnCount--">getPartitionColumnCount</a></span>()</code>&nbsp;</td>
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<tr id="i5" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/VectorizedRowBatch.html#readFields-java.io.DataInput-">readFields</a></span>(<a href="http://docs.oracle.com/javase/7/docs/api/java/io/DataInput.html?is-external=true" title="class or interface in java.io">DataInput</a>&nbsp;arg0)</code>&nbsp;</td>
</tr>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/VectorizedRowBatch.html#reset--">reset</a></span>()</code>
<div class="block">Resets the row batch to default state
  - sets selectedInUse to false
  - sets size to 0
  - sets endOfFile to false
  - resets each column
  - inits each column</div>
</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/VectorizedRowBatch.html#setPartitionInfo-int-int-">setPartitionInfo</a></span>(int&nbsp;dataColumnCount,
                int&nbsp;partitionColumnCount)</code>&nbsp;</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code><a href="http://docs.oracle.com/javase/7/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/hive/ql/exec/vector/VectorizedRowBatch.html#toString--">toString</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/VectorizedRowBatch.html#write-java.io.DataOutput-">write</a></span>(<a href="http://docs.oracle.com/javase/7/docs/api/java/io/DataOutput.html?is-external=true" title="class or interface in java.io">DataOutput</a>&nbsp;arg0)</code>&nbsp;</td>
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<code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li>
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<pre>public&nbsp;int numCols</pre>
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<h4>cols</h4>
<pre>public&nbsp;<a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/ColumnVector.html" title="class in org.apache.hadoop.hive.ql.exec.vector">ColumnVector</a>[] cols</pre>
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<h4>size</h4>
<pre>public&nbsp;int size</pre>
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<pre>public&nbsp;int[] projectedColumns</pre>
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<pre>public&nbsp;int projectionSize</pre>
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<pre>public&nbsp;boolean selectedInUse</pre>
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<pre>public&nbsp;boolean endOfFile</pre>
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<h4>DEFAULT_SIZE</h4>
<pre>public static final&nbsp;int DEFAULT_SIZE</pre>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../../../constant-values.html#org.apache.hadoop.hive.ql.exec.vector.VectorizedRowBatch.DEFAULT_SIZE">Constant Field Values</a></dd>
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<h4>VectorizedRowBatch</h4>
<pre>public&nbsp;VectorizedRowBatch(int&nbsp;numCols)</pre>
<div class="block">Return a batch with the specified number of columns.
 This is the standard constructor -- all batches should be the same size</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>numCols</code> - the number of columns to include in the batch</dd>
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<pre>public&nbsp;VectorizedRowBatch(int&nbsp;numCols,
                          int&nbsp;size)</pre>
<div class="block">Return a batch with the specified number of columns and rows.
 Only call this constructor directly for testing purposes.
 Batch size should normally always be defaultSize.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>numCols</code> - the number of columns to include in the batch</dd>
<dd><code>size</code> - the number of rows to include in the batch</dd>
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<h4>setPartitionInfo</h4>
<pre>public&nbsp;void&nbsp;setPartitionInfo(int&nbsp;dataColumnCount,
                             int&nbsp;partitionColumnCount)</pre>
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<pre>public&nbsp;int&nbsp;getDataColumnCount()</pre>
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<h4>getPartitionColumnCount</h4>
<pre>public&nbsp;int&nbsp;getPartitionColumnCount()</pre>
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<h4>getMaxSize</h4>
<pre>public&nbsp;int&nbsp;getMaxSize()</pre>
<div class="block">Returns the maximum size of the batch (number of rows it can hold)</div>
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<h4>count</h4>
<pre>public&nbsp;long&nbsp;count()</pre>
<div class="block">Return count of qualifying rows.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>number of rows that have not been filtered out</dd>
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<h4>toString</h4>
<pre>public&nbsp;<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;toString()</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a></code>&nbsp;in class&nbsp;<code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></dd>
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<h4>readFields</h4>
<pre>public&nbsp;void&nbsp;readFields(<a href="http://docs.oracle.com/javase/7/docs/api/java/io/DataInput.html?is-external=true" title="class or interface in java.io">DataInput</a>&nbsp;arg0)
                throws <a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>readFields</code>&nbsp;in interface&nbsp;<code>org.apache.hadoop.io.Writable</code></dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
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<h4>write</h4>
<pre>public&nbsp;void&nbsp;write(<a href="http://docs.oracle.com/javase/7/docs/api/java/io/DataOutput.html?is-external=true" title="class or interface in java.io">DataOutput</a>&nbsp;arg0)
           throws <a href="http://docs.oracle.com/javase/7/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="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>write</code>&nbsp;in interface&nbsp;<code>org.apache.hadoop.io.Writable</code></dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
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<h4>reset</h4>
<pre>public&nbsp;void&nbsp;reset()</pre>
<div class="block">Resets the row batch to default state
  - sets selectedInUse to false
  - sets size to 0
  - sets endOfFile to false
  - resets each column
  - inits each column</div>
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<h4>ensureSize</h4>
<pre>public&nbsp;void&nbsp;ensureSize(int&nbsp;rows)</pre>
<div class="block">Set the maximum number of rows in the batch.
 Data is not preserved.</div>
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