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<div class="subTitle">org.apache.sysds.runtime.compress.colgroup</div>
<h2 title="Class ColGroupOffset" class="title">Class ColGroupOffset</h2>
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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/sysds/runtime/compress/colgroup/AColGroup.html" title="class in org.apache.sysds.runtime.compress.colgroup">org.apache.sysds.runtime.compress.colgroup.AColGroup</a></li>
<li>
<ul class="inheritance">
<li><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html" title="class in org.apache.sysds.runtime.compress.colgroup">org.apache.sysds.runtime.compress.colgroup.ColGroupValue</a></li>
<li>
<ul class="inheritance">
<li>org.apache.sysds.runtime.compress.colgroup.ColGroupOffset</li>
</ul>
</li>
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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>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Cloneable.html?is-external=true" title="class or interface in java.lang">Cloneable</a></dd>
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<dl>
<dt>Direct Known Subclasses:</dt>
<dd><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupOLE.html" title="class in org.apache.sysds.runtime.compress.colgroup">ColGroupOLE</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupRLE.html" title="class in org.apache.sysds.runtime.compress.colgroup">ColGroupRLE</a></dd>
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<pre>public abstract class <span class="typeNameLabel">ColGroupOffset</span>
extends <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html" title="class in org.apache.sysds.runtime.compress.colgroup">ColGroupValue</a></pre>
<div class="block">Base class for column groups encoded with various types of bitmap encoding.
NOTES: * OLE: separate storage segment length and bitmaps led to a 30% improvement but not applied because more
difficult to support both data layouts at the same time (distributed/local as well as w/ and w/o low-level opt)</div>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../../serialized-form.html#org.apache.sysds.runtime.compress.colgroup.ColGroupOffset">Serialized Form</a></dd>
</dl>
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<li class="blockList"><a name="nested.classes.inherited.from.class.org.apache.sysds.runtime.compress.colgroup.AColGroup">
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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/AColGroup.html" title="class in org.apache.sysds.runtime.compress.colgroup">AColGroup</a></h3>
<code><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/AColGroup.ColGroupType.html" title="enum in org.apache.sysds.runtime.compress.colgroup">AColGroup.ColGroupType</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/AColGroup.CompressionType.html" title="enum in org.apache.sysds.runtime.compress.colgroup">AColGroup.CompressionType</a></code></li>
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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="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>
<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>long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupOffset.html#estimateInMemorySize--">estimateInMemorySize</a></span>()</code>
<div class="block">Note: Must be overridden by child classes to account for additional data and metadata</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>int[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupOffset.html#getBitmapOffsets--">getBitmapOffsets</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>char[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupOffset.html#getBitmaps--">getBitmaps</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupOffset.html#getExactSizeOnDisk--">getExactSizeOnDisk</a></span>()</code>
<div class="block">Returns the exact serialized size of column group.</div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupOffset.html#hasZeros--">hasZeros</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupOffset.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="i6" 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/ColGroupOffset.html#toString--">toString</a></span>()</code>&nbsp;</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/sysds/runtime/compress/colgroup/ColGroupOffset.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>
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<ul class="blockList">
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<h3>Methods inherited from class&nbsp;org.apache.sysds.runtime.compress.colgroup.<a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html" title="class in org.apache.sysds.runtime.compress.colgroup">ColGroupValue</a></h3>
<code><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#addMinMax-double:A-">addMinMax</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#applyBinaryRowOp-org.apache.sysds.runtime.functionobjects.ValueFunction-double:A-boolean-boolean-">applyBinaryRowOp</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#cleanupThreadLocalMemory--">cleanupThreadLocalMemory</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#containsValue-double-">containsValue</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#copy--">copy</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#copyAndSet-int:A-org.apache.sysds.runtime.compress.colgroup.ADictionary-">copyAndSet</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#copyAndSet-int:A-double:A-">copyAndSet</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#decompressToBlock-org.apache.sysds.runtime.matrix.data.MatrixBlock-int-int-">decompressToBlock</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#decompressToBlock-org.apache.sysds.runtime.matrix.data.MatrixBlock-int-int-int-">decompressToBlock</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#getCachedCounts--">getCachedCounts</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#getCounts--">getCounts</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#getCounts-int:A-">getCounts</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#getCounts-int-int-">getCounts</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#getCounts-int-int-int:A-">getCounts</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#getDictionary--">getDictionary</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#getIfCountsType--">getIfCountsType</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#getIndexStructureHash--">getIndexStructureHash</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#getMax--">getMax</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#getMin--">getMin</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#getNumberNonZeros--">getNumberNonZeros</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#getNumValues--">getNumValues</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#getValues--">getValues</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#getValuesAsBlock--">getValuesAsBlock</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#isLossy--">isLossy</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#leftMultByAggregatedColGroup-org.apache.sysds.runtime.compress.colgroup.ColGroupValue-double:A-int-int-">leftMultByAggregatedColGroup</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#leftMultByRowVector-double:A-double:A-">leftMultByRowVector</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#leftMultByRowVector-double:A-double:A-int-">leftMultByRowVector</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#leftMultByRowVector-double:A-double:A-int-double:A-">leftMultByRowVector</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#leftMultByRowVector-double:A-double:A-int-double:A-int-">leftMultByRowVector</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#leftMultBySelfDiagonalColGroup-double:A-int-">leftMultBySelfDiagonalColGroup</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#preAggregate-org.apache.sysds.runtime.compress.colgroup.ColGroupValue-">preAggregate</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#preAggregate-double:A-">preAggregate</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#preAggregate-double:A-int-">preAggregate</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#preAggregate-org.apache.sysds.runtime.data.SparseBlock-">preAggregate</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#preAggregateCONST-org.apache.sysds.runtime.compress.colgroup.ColGroupConst-">preAggregateCONST</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#preAggregateDDC-org.apache.sysds.runtime.compress.colgroup.ColGroupDDC-">preAggregateDDC</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#preAggregateOLE-org.apache.sysds.runtime.compress.colgroup.ColGroupOLE-">preAggregateOLE</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#preAggregateRLE-org.apache.sysds.runtime.compress.colgroup.ColGroupRLE-">preAggregateRLE</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#preAggregateSDC-org.apache.sysds.runtime.compress.colgroup.ColGroupSDC-">preAggregateSDC</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#preAggregateSDCSingle-org.apache.sysds.runtime.compress.colgroup.ColGroupSDCSingle-">preAggregateSDCSingle</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#preAggregateSDCSingleZeros-org.apache.sysds.runtime.compress.colgroup.ColGroupSDCSingleZeros-">preAggregateSDCSingleZeros</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#preAggregateSDCZeros-org.apache.sysds.runtime.compress.colgroup.ColGroupSDCZeros-">preAggregateSDCZeros</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#preAggregateSparse-org.apache.sysds.runtime.data.SparseBlock-int-">preAggregateSparse</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#preaggValues-int-org.apache.sysds.runtime.matrix.data.MatrixBlock-double:A-int-int-int-">preaggValues</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#preCallAggregate-org.apache.sysds.runtime.compress.colgroup.ColGroupValue-">preCallAggregate</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#sameIndexStructure-org.apache.sysds.runtime.compress.colgroup.ColGroupValue-">sameIndexStructure</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#setupThreadLocalMemory-int-">setupThreadLocalMemory</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#sliceColumns-int-int-">sliceColumns</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#unaryAggregateOperations-org.apache.sysds.runtime.matrix.operators.AggregateUnaryOperator-double:A-">unaryAggregateOperations</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#unaryAggregateOperations-org.apache.sysds.runtime.matrix.operators.AggregateUnaryOperator-double:A-int-int-">unaryAggregateOperations</a></code></li>
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<h3>Methods inherited from class&nbsp;org.apache.sysds.runtime.compress.colgroup.<a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/AColGroup.html" title="class in org.apache.sysds.runtime.compress.colgroup">AColGroup</a></h3>
<code><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/AColGroup.html#binaryRowOp-org.apache.sysds.runtime.matrix.operators.BinaryOperator-double:A-boolean-boolean-">binaryRowOp</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/AColGroup.html#countNonZerosPerRow-int:A-int-int-">countNonZerosPerRow</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/AColGroup.html#decompressColumnToArray-double:A-int-java.util.List-">decompressColumnToArray</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/AColGroup.html#decompressColumnToBlock-double:A-int-int-int-">decompressColumnToBlock</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/AColGroup.html#decompressColumnToBlock-double:A-int-int-int-java.util.List-">decompressColumnToBlock</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/AColGroup.html#decompressColumnToBlock-org.apache.sysds.runtime.matrix.data.MatrixBlock-int-">decompressColumnToBlock</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/AColGroup.html#decompressColumnToBlock-org.apache.sysds.runtime.matrix.data.MatrixBlock-int-int-int-">decompressColumnToBlock</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/AColGroup.html#decompressColumnToBlock-org.apache.sysds.runtime.matrix.data.MatrixBlock-int-int-int-java.util.List-">decompressColumnToBlock</a>, <a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/AColGroup.html#decompressColumnToBlock-org.apache.sysds.runtime.matrix.data.MatrixBlock-int-java.util.List-">decompressColumnToBlock</a>, <a 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<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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<a name="estimateInMemorySize--">
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<h4>estimateInMemorySize</h4>
<pre>public&nbsp;long&nbsp;estimateInMemorySize()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/AColGroup.html#estimateInMemorySize--">AColGroup</a></code></span></div>
<div class="block">Note: Must be overridden by child classes to account for additional data and metadata</div>
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<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/AColGroup.html#estimateInMemorySize--">estimateInMemorySize</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/AColGroup.html" title="class in org.apache.sysds.runtime.compress.colgroup">AColGroup</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>an upper bound on the number of bytes used to store this ColGroup in memory.</dd>
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<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/AColGroup.html#readFields-java.io.DataInput-">AColGroup</a></code></span></div>
<div class="block">Deserialize column group from data input.</div>
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<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#readFields-java.io.DataInput-">readFields</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html" title="class in org.apache.sysds.runtime.compress.colgroup">ColGroupValue</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>in</code> - data input</dd>
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<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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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/AColGroup.html#write-java.io.DataOutput-">AColGroup</a></code></span></div>
<div class="block">Serializes column group to data output.</div>
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<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#write-java.io.DataOutput-">write</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html" title="class in org.apache.sysds.runtime.compress.colgroup">ColGroupValue</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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<h4>getExactSizeOnDisk</h4>
<pre>public&nbsp;long&nbsp;getExactSizeOnDisk()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/AColGroup.html#getExactSizeOnDisk--">AColGroup</a></code></span></div>
<div class="block">Returns the exact serialized size of column group. This can be used for example for buffer preallocation.</div>
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<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#getExactSizeOnDisk--">getExactSizeOnDisk</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html" title="class in org.apache.sysds.runtime.compress.colgroup">ColGroupValue</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>exact serialized size for column group</dd>
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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>
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<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html#toString--">toString</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../org/apache/sysds/runtime/compress/colgroup/ColGroupValue.html" title="class in org.apache.sysds.runtime.compress.colgroup">ColGroupValue</a></code></dd>
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