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<li>Summary:&nbsp;</li>
<li><a href="#nested.classes.inherited.from.class.org.apache.sysds.runtime.compress.colgroup.ColGroup">Nested</a>&nbsp;|&nbsp;</li>
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<div class="subTitle">org.apache.sysds.runtime.compress.colgroup</div>
<h2 title="Class ColGroupValue" class="title">Class ColGroupValue</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>
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<ul class="inheritance">
<li><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.html" title="class in org.apache.sysds.runtime.compress.colgroup">org.apache.sysds.runtime.compress.colgroup.ColGroup</a></li>
<li>
<ul class="inheritance">
<li>org.apache.sysds.runtime.compress.colgroup.ColGroupValue</li>
</ul>
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<dt>All Implemented Interfaces:</dt>
<dd><a href="https://docs.oracle.com/javase/8/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</a></dd>
</dl>
<dl>
<dt>Direct Known Subclasses:</dt>
<dd><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupDDC.html" title="class in org.apache.sysds.runtime.compress.colgroup">ColGroupDDC</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupOffset.html" title="class in org.apache.sysds.runtime.compress.colgroup">ColGroupOffset</a></dd>
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<pre>public abstract class <span class="typeNameLabel">ColGroupValue</span>
extends <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.html" title="class in org.apache.sysds.runtime.compress.colgroup">ColGroup</a></pre>
<div class="block">Base class for column groups encoded with value dictionary. This include column groups such as DDC OLE and RLE.</div>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../../serialized-form.html#org.apache.sysds.runtime.compress.colgroup.ColGroupValue">Serialized Form</a></dd>
</dl>
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</ul>
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<!-- -->
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<h3>Nested classes/interfaces inherited from class&nbsp;org.apache.sysds.runtime.compress.colgroup.<a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.html" title="class in org.apache.sysds.runtime.compress.colgroup">ColGroup</a></h3>
<code><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.CompressionType.html" title="enum in org.apache.sysds.runtime.compress.colgroup">ColGroup.CompressionType</a></code></li>
</ul>
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<h3>Method Summary</h3>
<table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation">
<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></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="t3" class="tableTab"><span><a href="javascript:show(4);">Abstract 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>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
</tr>
<tr id="i0" class="altColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#cleanupThreadLocalMemory--">cleanupThreadLocalMemory</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>byte[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#getByteValues--">getByteValues</a></span>()</code>&nbsp;</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/sysds/runtime/compress/colgroup/ColGroupValue.html#getCounts--">getCounts</a></span>()</code>
<div class="block">Returns the counts of values inside the MatrixBlock returned in getValuesAsBlock Throws an exception if the
getIfCountsType is false.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>abstract int[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#getCounts-int:A-">getCounts</a></span>(int[]&nbsp;out)</code>&nbsp;</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/sysds/runtime/compress/colgroup/ColGroupValue.html#getCounts-int-int-">getCounts</a></span>(int&nbsp;rl,
int&nbsp;ru)</code>
<div class="block">Returns the counts of values inside the MatrixBlock returned in getValuesAsBlock Throws an exception if the
getIfCountsType is false.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>abstract int[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#getCounts-int-int-int:A-">getCounts</a></span>(int&nbsp;rl,
int&nbsp;ru,
int[]&nbsp;out)</code>&nbsp;</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#getExactSizeOnDisk--">getExactSizeOnDisk</a></span>()</code>
<div class="block">Returns the exact serialized size of column group.</div>
</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#getIfCountsType--">getIfCountsType</a></span>()</code>
<div class="block">Returns true if in the getValuesAsBlock method returns values in groups (that needs to be counted) or
individually potentially repeated values</div>
</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#getNumValues--">getNumValues</a></span>()</code>
<div class="block">Obtain number of distinct sets of values associated with the bitmaps in this column group.</div>
</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code>double[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#getValues--">getValues</a></span>()</code>
<div class="block">Get all the values in the colGroup.</div>
</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code><a href="../../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#getValuesAsBlock--">getValuesAsBlock</a></span>()</code>
<div class="block">Returns the ColGroup as a MatrixBlock.</div>
</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#isLossy--">isLossy</a></span>()</code>
<div class="block">Is Lossy</div>
</td>
</tr>
<tr id="i12" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#readFields-java.io.DataInput-">readFields</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/io/DataInput.html?is-external=true" title="class or interface in java.io">DataInput</a>&nbsp;in)</code>
<div class="block">Deserialize column group from data input.</div>
</td>
</tr>
<tr id="i13" class="rowColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#setupThreadLocalMemory-int-">setupThreadLocalMemory</a></span>(int&nbsp;len)</code>&nbsp;</td>
</tr>
<tr id="i14" class="altColor">
<td class="colFirst"><code><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/sysds/runtime/compress/colgroup/ColGroupValue.html#toString--">toString</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i15" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#unaryAggregateOperations-org.apache.sysds.runtime.matrix.operators.AggregateUnaryOperator-double:A-">unaryAggregateOperations</a></span>(<a href="../../../../../../org/apache/sysds/runtime/matrix/operators/AggregateUnaryOperator.html" title="class in org.apache.sysds.runtime.matrix.operators">AggregateUnaryOperator</a>&nbsp;op,
double[]&nbsp;c)</code>
<div class="block">Unary Aggregate operator, since aggregate operators require new object output, the output becomes an uncompressed
matrix.</div>
</td>
</tr>
<tr id="i16" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#unaryAggregateOperations-org.apache.sysds.runtime.matrix.operators.AggregateUnaryOperator-double:A-int-int-">unaryAggregateOperations</a></span>(<a href="../../../../../../org/apache/sysds/runtime/matrix/operators/AggregateUnaryOperator.html" title="class in org.apache.sysds.runtime.matrix.operators">AggregateUnaryOperator</a>&nbsp;op,
double[]&nbsp;c,
int&nbsp;rl,
int&nbsp;ru)</code>
<div class="block">Unary Aggregate operator, since aggregate operators require new object output, the output becomes an uncompressed
matrix.</div>
</td>
</tr>
<tr id="i17" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#write-java.io.DataOutput-">write</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/io/DataOutput.html?is-external=true" title="class or interface in java.io">DataOutput</a>&nbsp;out)</code>
<div class="block">Serializes column group to data output.</div>
</td>
</tr>
</table>
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<h3>Methods inherited from class&nbsp;org.apache.sysds.runtime.compress.colgroup.<a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.html" title="class in org.apache.sysds.runtime.compress.colgroup">ColGroup</a></h3>
<code><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.html#countNonZerosPerRow-int:A-int-int-">countNonZerosPerRow</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.html#decompressToBlock-org.apache.sysds.runtime.matrix.data.MatrixBlock-int-">decompressToBlock</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.html#decompressToBlock-org.apache.sysds.runtime.matrix.data.MatrixBlock-int:A-">decompressToBlock</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.html#decompressToBlock-org.apache.sysds.runtime.matrix.data.MatrixBlock-int-int-">decompressToBlock</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.html#estimateInMemorySize--">estimateInMemorySize</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.html#get-int-int-">get</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.html#getColIndex-int-">getColIndex</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.html#getColIndices--">getColIndices</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.html#getCompType--">getCompType</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.html#getIterator-int-int-boolean-boolean-">getIterator</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.html#getNumCols--">getNumCols</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.html#getNumRows--">getNumRows</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.html#getRowIterator-int-int-">getRowIterator</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.html#leftMultByMatrix-double:A-double:A-int-double:A-int-int-int-int-int-">leftMultByMatrix</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.html#leftMultByRowVector-double:A-double:A-int-">leftMultByRowVector</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.html#leftMultByRowVector-double:A-double:A-int-double:A-">leftMultByRowVector</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.html#rightMultByMatrix-double:A-double:A-int-double:A-int-int-int-">rightMultByMatrix</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.html#rightMultByVector-double:A-double:A-int-int-double:A-">rightMultByVector</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.html#scalarOperation-org.apache.sysds.runtime.matrix.operators.ScalarOperator-">scalarOperation</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.html#shiftColIndices-int-">shiftColIndices</a></code></li>
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<h3>Methods inherited from class&nbsp;java.lang.<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3>
<code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/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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<h3>Method Detail</h3>
<a name="getNumValues--">
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<h4>getNumValues</h4>
<pre>public&nbsp;int&nbsp;getNumValues()</pre>
<div class="block">Obtain number of distinct sets of values associated with the bitmaps in this column group.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the number of distinct sets of values associated with the bitmaps in this column group</dd>
</dl>
</li>
</ul>
<a name="getValues--">
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<h4>getValues</h4>
<pre>public&nbsp;double[]&nbsp;getValues()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.html#getValues--">ColGroup</a></code></span></div>
<div class="block">Get all the values in the colGroup. Note that this is only the stored values not the way they are stored. Making
the output a list of values used in that colGroup not the actual full column.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.html#getValues--">getValues</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.html" title="class in org.apache.sysds.runtime.compress.colgroup">ColGroup</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a double list of values.</dd>
</dl>
</li>
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<a name="getByteValues--">
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<h4>getByteValues</h4>
<pre>public&nbsp;byte[]&nbsp;getByteValues()</pre>
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<a name="getValuesAsBlock--">
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<h4>getValuesAsBlock</h4>
<pre>public&nbsp;<a href="../../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a>&nbsp;getValuesAsBlock()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.html#getValuesAsBlock--">ColGroup</a></code></span></div>
<div class="block">Returns the ColGroup as a MatrixBlock. Used as a fall back solution in case a operation is not supported. Use in
connection to getIfCountsType to get if the values are repeated.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.html#getValuesAsBlock--">getValuesAsBlock</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.html" title="class in org.apache.sysds.runtime.compress.colgroup">ColGroup</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Matrix Block of the contained Values. Possibly contained in groups.</dd>
</dl>
</li>
</ul>
<a name="getCounts--">
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<h4>getCounts</h4>
<pre>public final&nbsp;int[]&nbsp;getCounts()</pre>
<div class="block">Returns the counts of values inside the MatrixBlock returned in getValuesAsBlock Throws an exception if the
getIfCountsType is false.
The returned counts always contains the number of zeros as well if there are some contained, even if they are not
materialized.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the count of each value in the MatrixBlock.</dd>
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<h4>getCounts</h4>
<pre>public final&nbsp;int[]&nbsp;getCounts(int&nbsp;rl,
int&nbsp;ru)</pre>
<div class="block">Returns the counts of values inside the MatrixBlock returned in getValuesAsBlock Throws an exception if the
getIfCountsType is false.
The returned counts always contains the number of zeros as well if there are some contained, even if they are not
materialized.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>rl</code> - the lower index of the interval of rows queried</dd>
<dd><code>ru</code> - the the upper boundary of the interval of rows queried</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the count of each value in the MatrixBlock.</dd>
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<h4>getIfCountsType</h4>
<pre>public&nbsp;boolean&nbsp;getIfCountsType()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.html#getIfCountsType--">ColGroup</a></code></span></div>
<div class="block">Returns true if in the getValuesAsBlock method returns values in groups (that needs to be counted) or
individually potentially repeated values</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.html#getIfCountsType--">getIfCountsType</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.html" title="class in org.apache.sysds.runtime.compress.colgroup">ColGroup</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>boolean</dd>
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<h4>unaryAggregateOperations</h4>
<pre>public&nbsp;void&nbsp;unaryAggregateOperations(<a href="../../../../../../org/apache/sysds/runtime/matrix/operators/AggregateUnaryOperator.html" title="class in org.apache.sysds.runtime.matrix.operators">AggregateUnaryOperator</a>&nbsp;op,
double[]&nbsp;c)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.html#unaryAggregateOperations-org.apache.sysds.runtime.matrix.operators.AggregateUnaryOperator-double:A-">ColGroup</a></code></span></div>
<div class="block">Unary Aggregate operator, since aggregate operators require new object output, the output becomes an uncompressed
matrix.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.html#unaryAggregateOperations-org.apache.sysds.runtime.matrix.operators.AggregateUnaryOperator-double:A-">unaryAggregateOperations</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.html" title="class in org.apache.sysds.runtime.compress.colgroup">ColGroup</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>op</code> - The operator used</dd>
<dd><code>c</code> - Rhe output matrix block.</dd>
</dl>
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<pre>public&nbsp;void&nbsp;unaryAggregateOperations(<a href="../../../../../../org/apache/sysds/runtime/matrix/operators/AggregateUnaryOperator.html" title="class in org.apache.sysds.runtime.matrix.operators">AggregateUnaryOperator</a>&nbsp;op,
double[]&nbsp;c,
int&nbsp;rl,
int&nbsp;ru)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.html#unaryAggregateOperations-org.apache.sysds.runtime.matrix.operators.AggregateUnaryOperator-double:A-int-int-">ColGroup</a></code></span></div>
<div class="block">Unary Aggregate operator, since aggregate operators require new object output, the output becomes an uncompressed
matrix.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.html#unaryAggregateOperations-org.apache.sysds.runtime.matrix.operators.AggregateUnaryOperator-double:A-int-int-">unaryAggregateOperations</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.html" title="class in org.apache.sysds.runtime.compress.colgroup">ColGroup</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>op</code> - The operator used</dd>
<dd><code>c</code> - The output matrix block.</dd>
<dd><code>rl</code> - The Starting Row to do aggregation from</dd>
<dd><code>ru</code> - The last Row to do aggregation to (not included)</dd>
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<h4>setupThreadLocalMemory</h4>
<pre>public static&nbsp;void&nbsp;setupThreadLocalMemory(int&nbsp;len)</pre>
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<h4>cleanupThreadLocalMemory</h4>
<pre>public static&nbsp;void&nbsp;cleanupThreadLocalMemory()</pre>
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<h4>toString</h4>
<pre>public&nbsp;<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>&nbsp;toString()</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/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="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></dd>
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<pre>public&nbsp;boolean&nbsp;isLossy()</pre>
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<div class="block">Is Lossy</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.html#isLossy--">isLossy</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.html" title="class in org.apache.sysds.runtime.compress.colgroup">ColGroup</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>returns if the ColGroup is compressed in a lossy manner.</dd>
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<pre>public&nbsp;void&nbsp;readFields(<a href="https://docs.oracle.com/javase/8/docs/api/java/io/DataInput.html?is-external=true" title="class or interface in java.io">DataInput</a>&nbsp;in)
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/sysds/runtime/compress/colgroup/ColGroup.html#readFields-java.io.DataInput-">ColGroup</a></code></span></div>
<div class="block">Deserialize column group from data input.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.html#readFields-java.io.DataInput-">readFields</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.html" title="class in org.apache.sysds.runtime.compress.colgroup">ColGroup</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>in</code> - data input</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> - if IOException occurs</dd>
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<pre>public&nbsp;void&nbsp;write(<a href="https://docs.oracle.com/javase/8/docs/api/java/io/DataOutput.html?is-external=true" title="class or interface in java.io">DataOutput</a>&nbsp;out)
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/sysds/runtime/compress/colgroup/ColGroup.html#write-java.io.DataOutput-">ColGroup</a></code></span></div>
<div class="block">Serializes column group to data output.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.html#write-java.io.DataOutput-">write</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.html" title="class in org.apache.sysds.runtime.compress.colgroup">ColGroup</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>out</code> - data output</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> - if IOException occurs</dd>
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<pre>public&nbsp;long&nbsp;getExactSizeOnDisk()</pre>
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<div class="block">Returns the exact serialized size of column group. This can be used for example for buffer preallocation.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.html#getExactSizeOnDisk--">getExactSizeOnDisk</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroup.html" title="class in org.apache.sysds.runtime.compress.colgroup">ColGroup</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>exact serialized size for column group</dd>
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<h4>getCounts</h4>
<pre>public abstract&nbsp;int[]&nbsp;getCounts(int[]&nbsp;out)</pre>
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<h4>getCounts</h4>
<pre>public abstract&nbsp;int[]&nbsp;getCounts(int&nbsp;rl,
int&nbsp;ru,
int[]&nbsp;out)</pre>
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