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<div class="subTitle">org.apache.hadoop.hive.ql.exec.vector</div>
<h2 title="Class DoubleColumnVector" class="title">Class DoubleColumnVector</h2>
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<li><a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/ColumnVector.html" title="class in org.apache.hadoop.hive.ql.exec.vector">org.apache.hadoop.hive.ql.exec.vector.ColumnVector</a></li>
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<li>org.apache.hadoop.hive.ql.exec.vector.DoubleColumnVector</li>
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<pre>public class <span class="typeNameLabel">DoubleColumnVector</span>
extends <a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/ColumnVector.html" title="class in org.apache.hadoop.hive.ql.exec.vector">ColumnVector</a></pre>
<div class="block">This class represents a nullable double precision floating point column vector.
 This class will be used for operations on all floating point types (float, double)
 and as such will use a 64-bit double value to hold the biggest possible value.
 During copy-in/copy-out, smaller types (i.e. float) will be converted as needed. This will
 reduce the amount of code that needs to be generated and also will run fast since the
 machine operates with 64-bit words.

 The vector[] field is public by design for high-performance access in the inner
 loop of query execution.</div>
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<h3>Nested classes/interfaces inherited from class&nbsp;org.apache.hadoop.hive.ql.exec.vector.<a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/ColumnVector.html" title="class in org.apache.hadoop.hive.ql.exec.vector">ColumnVector</a></h3>
<code><a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/ColumnVector.Type.html" title="enum in org.apache.hadoop.hive.ql.exec.vector">ColumnVector.Type</a></code></li>
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<caption><span>Fields</span><span class="tabEnd">&nbsp;</span></caption>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Field and Description</th>
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<td class="colFirst"><code>static double</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/DoubleColumnVector.html#NULL_VALUE">NULL_VALUE</a></span></code>&nbsp;</td>
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<td class="colFirst"><code>double[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/DoubleColumnVector.html#vector">vector</a></span></code>&nbsp;</td>
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<h3>Fields inherited from class&nbsp;org.apache.hadoop.hive.ql.exec.vector.<a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/ColumnVector.html" title="class in org.apache.hadoop.hive.ql.exec.vector">ColumnVector</a></h3>
<code><a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/ColumnVector.html#isNull">isNull</a>, <a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/ColumnVector.html#isRepeating">isRepeating</a>, <a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/ColumnVector.html#noNulls">noNulls</a></code></li>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/DoubleColumnVector.html#DoubleColumnVector--">DoubleColumnVector</a></span>()</code>
<div class="block">Use this constructor by default.</div>
</td>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/DoubleColumnVector.html#DoubleColumnVector-int-">DoubleColumnVector</a></span>(int&nbsp;len)</code>
<div class="block">Don't use this except for testing purposes.</div>
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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/DoubleColumnVector.html#copySelected-boolean-int:A-int-org.apache.hadoop.hive.ql.exec.vector.DoubleColumnVector-">copySelected</a></span>(boolean&nbsp;selectedInUse,
            int[]&nbsp;sel,
            int&nbsp;size,
            <a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/DoubleColumnVector.html" title="class in org.apache.hadoop.hive.ql.exec.vector">DoubleColumnVector</a>&nbsp;output)</code>&nbsp;</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/DoubleColumnVector.html#ensureSize-int-boolean-">ensureSize</a></span>(int&nbsp;size,
          boolean&nbsp;preserveData)</code>
<div class="block">Ensure the ColumnVector can hold at least size values.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/DoubleColumnVector.html#fill-double-">fill</a></span>(double&nbsp;value)</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/hive/ql/exec/vector/DoubleColumnVector.html#fillWithNulls--">fillWithNulls</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/hive/ql/exec/vector/DoubleColumnVector.html#flatten-boolean-int:A-int-">flatten</a></span>(boolean&nbsp;selectedInUse,
       int[]&nbsp;sel,
       int&nbsp;size)</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/hive/ql/exec/vector/DoubleColumnVector.html#setElement-int-int-org.apache.hadoop.hive.ql.exec.vector.ColumnVector-">setElement</a></span>(int&nbsp;outElementNum,
          int&nbsp;inputElementNum,
          <a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/ColumnVector.html" title="class in org.apache.hadoop.hive.ql.exec.vector">ColumnVector</a>&nbsp;inputVector)</code>
<div class="block">Set the element in this column vector from the given input vector.</div>
</td>
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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/DoubleColumnVector.html#stringifyValue-java.lang.StringBuilder-int-">stringifyValue</a></span>(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/StringBuilder.html?is-external=true" title="class or interface in java.lang">StringBuilder</a>&nbsp;buffer,
              int&nbsp;row)</code>
<div class="block">Print the value for this column into the given string builder.</div>
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<h3>Methods inherited from class&nbsp;org.apache.hadoop.hive.ql.exec.vector.<a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/ColumnVector.html" title="class in org.apache.hadoop.hive.ql.exec.vector">ColumnVector</a></h3>
<code><a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/ColumnVector.html#flattenNoNulls-boolean-int:A-int-">flattenNoNulls</a>, <a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/ColumnVector.html#flattenPush--">flattenPush</a>, <a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/ColumnVector.html#flattenRepeatingNulls-boolean-int:A-int-">flattenRepeatingNulls</a>, <a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/ColumnVector.html#init--">init</a>, <a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/ColumnVector.html#reset--">reset</a>, <a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/ColumnVector.html#setRepeating-boolean-">setRepeating</a>, <a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/ColumnVector.html#unFlatten--">unFlatten</a></code></li>
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<h4>vector</h4>
<pre>public&nbsp;double[] vector</pre>
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<pre>public static final&nbsp;double NULL_VALUE</pre>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../../../constant-values.html#org.apache.hadoop.hive.ql.exec.vector.DoubleColumnVector.NULL_VALUE">Constant Field Values</a></dd>
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<h4>DoubleColumnVector</h4>
<pre>public&nbsp;DoubleColumnVector()</pre>
<div class="block">Use this constructor by default. All column vectors
 should normally be the default size.</div>
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<h4>DoubleColumnVector</h4>
<pre>public&nbsp;DoubleColumnVector(int&nbsp;len)</pre>
<div class="block">Don't use this except for testing purposes.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>len</code> - </dd>
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<pre>public&nbsp;void&nbsp;copySelected(boolean&nbsp;selectedInUse,
                         int[]&nbsp;sel,
                         int&nbsp;size,
                         <a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/DoubleColumnVector.html" title="class in org.apache.hadoop.hive.ql.exec.vector">DoubleColumnVector</a>&nbsp;output)</pre>
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<h4>fill</h4>
<pre>public&nbsp;void&nbsp;fill(double&nbsp;value)</pre>
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<pre>public&nbsp;void&nbsp;fillWithNulls()</pre>
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<h4>flatten</h4>
<pre>public&nbsp;void&nbsp;flatten(boolean&nbsp;selectedInUse,
                    int[]&nbsp;sel,
                    int&nbsp;size)</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/ColumnVector.html#flatten-boolean-int:A-int-">flatten</a></code>&nbsp;in class&nbsp;<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></dd>
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<h4>setElement</h4>
<pre>public&nbsp;void&nbsp;setElement(int&nbsp;outElementNum,
                       int&nbsp;inputElementNum,
                       <a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/ColumnVector.html" title="class in org.apache.hadoop.hive.ql.exec.vector">ColumnVector</a>&nbsp;inputVector)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/ColumnVector.html#setElement-int-int-org.apache.hadoop.hive.ql.exec.vector.ColumnVector-">ColumnVector</a></code></span></div>
<div class="block">Set the element in this column vector from the given input vector.
 This method can assume that the output does not have isRepeating set.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/ColumnVector.html#setElement-int-int-org.apache.hadoop.hive.ql.exec.vector.ColumnVector-">setElement</a></code>&nbsp;in class&nbsp;<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></dd>
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<h4>stringifyValue</h4>
<pre>public&nbsp;void&nbsp;stringifyValue(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/StringBuilder.html?is-external=true" title="class or interface in java.lang">StringBuilder</a>&nbsp;buffer,
                           int&nbsp;row)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/ColumnVector.html#stringifyValue-java.lang.StringBuilder-int-">ColumnVector</a></code></span></div>
<div class="block">Print the value for this column into the given string builder.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/ColumnVector.html#stringifyValue-java.lang.StringBuilder-int-">stringifyValue</a></code>&nbsp;in class&nbsp;<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></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>buffer</code> - the buffer to print into</dd>
<dd><code>row</code> - the id of the row to print</dd>
</dl>
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<h4>ensureSize</h4>
<pre>public&nbsp;void&nbsp;ensureSize(int&nbsp;size,
                       boolean&nbsp;preserveData)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/ColumnVector.html#ensureSize-int-boolean-">ColumnVector</a></code></span></div>
<div class="block">Ensure the ColumnVector can hold at least size values.
 This method is deliberately *not* recursive because the complex types
 can easily have more (or less) children than the upper levels.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="../../../../../../../org/apache/hadoop/hive/ql/exec/vector/ColumnVector.html#ensureSize-int-boolean-">ensureSize</a></code>&nbsp;in class&nbsp;<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></dd>
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<dd><code>size</code> - the new minimum size</dd>
<dd><code>preserveData</code> - should the old data be preserved?</dd>
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