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<div class="subTitle">org.apache.sysds.runtime.controlprogram.caching</div>
<h2 title="Class MatrixObject" class="title">Class MatrixObject</h2>
</div>
<div class="contentContainer">
<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/instructions/cp/Data.html" title="class in org.apache.sysds.runtime.instructions.cp">org.apache.sysds.runtime.instructions.cp.Data</a></li>
<li>
<ul class="inheritance">
<li><a href="../../../../../../org/apache/sysds/runtime/controlprogram/caching/CacheableData.html" title="class in org.apache.sysds.runtime.controlprogram.caching">org.apache.sysds.runtime.controlprogram.caching.CacheableData</a>&lt;<a href="../../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a>&gt;</li>
<li>
<ul class="inheritance">
<li>org.apache.sysds.runtime.controlprogram.caching.MatrixObject</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>
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<pre>public class <span class="typeNameLabel">MatrixObject</span>
extends <a href="../../../../../../org/apache/sysds/runtime/controlprogram/caching/CacheableData.html" title="class in org.apache.sysds.runtime.controlprogram.caching">CacheableData</a>&lt;<a href="../../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a>&gt;</pre>
<div class="block">Represents a matrix in control program. This class contains method to read
matrices from HDFS and convert them to a specific format/representation. It
is also able to write several formats/representation of matrices to HDFS.
IMPORTANT: Preserve one-to-one correspondence between <a href="../../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching"><code>MatrixObject</code></a>
and <a href="../../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data"><code>MatrixBlock</code></a> objects, for cache purposes. Do not change a
<a href="../../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data"><code>MatrixBlock</code></a> object without informing its <a href="../../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching"><code>MatrixObject</code></a> object.</div>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../../serialized-form.html#org.apache.sysds.runtime.controlprogram.caching.MatrixObject">Serialized Form</a></dd>
</dl>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Class and Description</th>
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<tr class="altColor">
<td class="colFirst"><code>static class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.UpdateType.html" title="enum in org.apache.sysds.runtime.controlprogram.caching">MatrixObject.UpdateType</a></span></code>&nbsp;</td>
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<h3>Nested classes/interfaces inherited from class&nbsp;org.apache.sysds.runtime.controlprogram.caching.<a href="../../../../../../org/apache/sysds/runtime/controlprogram/caching/CacheableData.html" title="class in org.apache.sysds.runtime.controlprogram.caching">CacheableData</a></h3>
<code><a href="../../../../../../org/apache/sysds/runtime/controlprogram/caching/CacheableData.CacheStatus.html" title="enum in org.apache.sysds.runtime.controlprogram.caching">CacheableData.CacheStatus</a></code></li>
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<h3>Fields inherited from class&nbsp;org.apache.sysds.runtime.controlprogram.caching.<a href="../../../../../../org/apache/sysds/runtime/controlprogram/caching/CacheableData.html" title="class in org.apache.sysds.runtime.controlprogram.caching">CacheableData</a></h3>
<code><a href="../../../../../../org/apache/sysds/runtime/controlprogram/caching/CacheableData.html#cacheEvictionLocalFilePath">cacheEvictionLocalFilePath</a>, <a href="../../../../../../org/apache/sysds/runtime/controlprogram/caching/CacheableData.html#cacheEvictionLocalFilePrefix">cacheEvictionLocalFilePrefix</a>, <a href="../../../../../../org/apache/sysds/runtime/controlprogram/caching/CacheableData.html#CACHING_ASYNC_FILECLEANUP">CACHING_ASYNC_FILECLEANUP</a>, <a href="../../../../../../org/apache/sysds/runtime/controlprogram/caching/CacheableData.html#CACHING_ASYNC_SERIALIZE">CACHING_ASYNC_SERIALIZE</a>, <a href="../../../../../../org/apache/sysds/runtime/controlprogram/caching/CacheableData.html#CACHING_BUFFER_PAGECACHE">CACHING_BUFFER_PAGECACHE</a>, <a href="../../../../../../org/apache/sysds/runtime/controlprogram/caching/CacheableData.html#CACHING_BUFFER_POLICY">CACHING_BUFFER_POLICY</a>, <a href="../../../../../../org/apache/sysds/runtime/controlprogram/caching/CacheableData.html#CACHING_BUFFER_SIZE">CACHING_BUFFER_SIZE</a>, <a href="../../../../../../org/apache/sysds/runtime/controlprogram/caching/CacheableData.html#CACHING_COUNTER_GROUP_NAME">CACHING_COUNTER_GROUP_NAME</a>, <a href="../../../../../../org/apache/sysds/runtime/controlprogram/caching/CacheableData.html#CACHING_EVICTION_FILEEXTENSION">CACHING_EVICTION_FILEEXTENSION</a>, <a href="../../../../../../org/apache/sysds/runtime/controlprogram/caching/CacheableData.html#CACHING_THRESHOLD">CACHING_THRESHOLD</a>, <a href="../../../../../../org/apache/sysds/runtime/controlprogram/caching/CacheableData.html#CACHING_WRITE_CACHE_ON_READ">CACHING_WRITE_CACHE_ON_READ</a></code></li>
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<!-- ======== CONSTRUCTOR SUMMARY ======== -->
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<h3>Constructor Summary</h3>
<table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Constructor Summary table, listing constructors, and an explanation">
<caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colOne" scope="col">Constructor and Description</th>
</tr>
<tr class="altColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html#MatrixObject-org.apache.sysds.runtime.controlprogram.caching.MatrixObject-">MatrixObject</a></span>(<a href="../../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">MatrixObject</a>&nbsp;mo)</code>
<div class="block">Copy constructor that copies meta data but NO data.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html#MatrixObject-org.apache.sysds.common.Types.ValueType-java.lang.String-">MatrixObject</a></span>(<a href="../../../../../../org/apache/sysds/common/Types.ValueType.html" title="enum in org.apache.sysds.common">Types.ValueType</a>&nbsp;vt,
<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;file)</code>
<div class="block">Constructor that takes the value type and the HDFS filename.</div>
</td>
</tr>
<tr class="altColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html#MatrixObject-org.apache.sysds.common.Types.ValueType-java.lang.String-org.apache.sysds.runtime.meta.MetaData-">MatrixObject</a></span>(<a href="../../../../../../org/apache/sysds/common/Types.ValueType.html" title="enum in org.apache.sysds.common">Types.ValueType</a>&nbsp;vt,
<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;file,
<a href="../../../../../../org/apache/sysds/runtime/meta/MetaData.html" title="class in org.apache.sysds.runtime.meta">MetaData</a>&nbsp;mtd)</code>
<div class="block">Constructor that takes the value type, HDFS filename and associated metadata.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html#MatrixObject-org.apache.sysds.common.Types.ValueType-java.lang.String-org.apache.sysds.runtime.meta.MetaData-org.apache.sysds.runtime.matrix.data.MatrixBlock-">MatrixObject</a></span>(<a href="../../../../../../org/apache/sysds/common/Types.ValueType.html" title="enum in org.apache.sysds.common">Types.ValueType</a>&nbsp;vt,
<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;file,
<a href="../../../../../../org/apache/sysds/runtime/meta/MetaData.html" title="class in org.apache.sysds.runtime.meta">MetaData</a>&nbsp;mtd,
<a href="../../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a>&nbsp;data)</code>
<div class="block">Constructor that takes the value type, HDFS filename and associated metadata and a MatrixBlock
used for creation after serialization</div>
</td>
</tr>
</table>
</li>
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<h3>Method Summary</h3>
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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>
<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/controlprogram/caching/MatrixObject.html#getBlocksize--">getBlocksize</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html#getNnz--">getNnz</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i2" 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/controlprogram/caching/MatrixObject.html#getPartitionFileName-org.apache.sysds.runtime.util.IndexRange-int-">getPartitionFileName</a></span>(<a href="../../../../../../org/apache/sysds/runtime/util/IndexRange.html" title="class in org.apache.sysds.runtime.util">IndexRange</a>&nbsp;pred,
int&nbsp;blen)</code>&nbsp;</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code><a href="../../../../../../org/apache/sysds/runtime/controlprogram/ParForProgramBlock.PDataPartitionFormat.html" title="enum in org.apache.sysds.runtime.controlprogram">ParForProgramBlock.PDataPartitionFormat</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html#getPartitionFormat--">getPartitionFormat</a></span>()</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/controlprogram/caching/MatrixObject.html#getPartitionSize--">getPartitionSize</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>double</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html#getSparsity--">getSparsity</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code><a href="../../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.UpdateType.html" title="enum in org.apache.sysds.runtime.controlprogram.caching">MatrixObject.UpdateType</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html#getUpdateType--">getUpdateType</a></span>()</code>&nbsp;</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/controlprogram/caching/MatrixObject.html#isDiag--">isDiag</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html#isMarked--">isMarked</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html#isPartitioned--">isPartitioned</a></span>()</code>&nbsp;</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/controlprogram/caching/MatrixObject.html#readMatrixPartition-org.apache.sysds.runtime.util.IndexRange-">readMatrixPartition</a></span>(<a href="../../../../../../org/apache/sysds/runtime/util/IndexRange.html" title="class in org.apache.sysds.runtime.util">IndexRange</a>&nbsp;pred)</code>
<div class="block">NOTE: for reading matrix partitions, we could cache (in its real sense) the read block
with soft references (no need for eviction, as partitioning only applied for read-only matrices).</div>
</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html#refreshMetaData--">refreshMetaData</a></span>()</code>
<div class="block">Make the matrix metadata consistent with the in-memory matrix data</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/controlprogram/caching/MatrixObject.html#setDiag-boolean-">setDiag</a></span>(boolean&nbsp;diag)</code>&nbsp;</td>
</tr>
<tr id="i13" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html#setInMemoryPartition-org.apache.sysds.runtime.matrix.data.MatrixBlock-">setInMemoryPartition</a></span>(<a href="../../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a>&nbsp;block)</code>&nbsp;</td>
</tr>
<tr id="i14" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html#setMarkForLinCache-boolean-">setMarkForLinCache</a></span>(boolean&nbsp;mark)</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/controlprogram/caching/MatrixObject.html#setPartitioned-org.apache.sysds.runtime.controlprogram.ParForProgramBlock.PDataPartitionFormat-int-">setPartitioned</a></span>(<a href="../../../../../../org/apache/sysds/runtime/controlprogram/ParForProgramBlock.PDataPartitionFormat.html" title="enum in org.apache.sysds.runtime.controlprogram">ParForProgramBlock.PDataPartitionFormat</a>&nbsp;format,
int&nbsp;n)</code>&nbsp;</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/controlprogram/caching/MatrixObject.html#setUpdateType-org.apache.sysds.runtime.controlprogram.caching.MatrixObject.UpdateType-">setUpdateType</a></span>(<a href="../../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.UpdateType.html" title="enum in org.apache.sysds.runtime.controlprogram.caching">MatrixObject.UpdateType</a>&nbsp;flag)</code>&nbsp;</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/controlprogram/caching/MatrixObject.html#unsetPartitioned--">unsetPartitioned</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i18" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html#updateDataCharacteristics-org.apache.sysds.runtime.meta.DataCharacteristics-">updateDataCharacteristics</a></span>(<a href="../../../../../../org/apache/sysds/runtime/meta/DataCharacteristics.html" title="class in org.apache.sysds.runtime.meta">DataCharacteristics</a>&nbsp;dc)</code>&nbsp;</td>
</tr>
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<h3>Methods inherited from class&nbsp;org.apache.sysds.runtime.controlprogram.caching.<a href="../../../../../../org/apache/sysds/runtime/controlprogram/caching/CacheableData.html" title="class in org.apache.sysds.runtime.controlprogram.caching">CacheableData</a></h3>
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<h3>Methods inherited from class&nbsp;org.apache.sysds.runtime.instructions.cp.<a href="../../../../../../org/apache/sysds/runtime/instructions/cp/Data.html" title="class in org.apache.sysds.runtime.instructions.cp">Data</a></h3>
<code><a href="../../../../../../org/apache/sysds/runtime/instructions/cp/Data.html#getDataType--">getDataType</a>, <a href="../../../../../../org/apache/sysds/runtime/instructions/cp/Data.html#getPrivacyConstraint--">getPrivacyConstraint</a>, <a href="../../../../../../org/apache/sysds/runtime/instructions/cp/Data.html#getValueType--">getValueType</a>, <a href="../../../../../../org/apache/sysds/runtime/instructions/cp/Data.html#setPrivacyConstraints-org.apache.sysds.runtime.privacy.PrivacyConstraint-">setPrivacyConstraints</a></code></li>
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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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<h3>Constructor Detail</h3>
<a name="MatrixObject-org.apache.sysds.common.Types.ValueType-java.lang.String-">
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<h4>MatrixObject</h4>
<pre>public&nbsp;MatrixObject(<a href="../../../../../../org/apache/sysds/common/Types.ValueType.html" title="enum in org.apache.sysds.common">Types.ValueType</a>&nbsp;vt,
<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;file)</pre>
<div class="block">Constructor that takes the value type and the HDFS filename.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>vt</code> - value type</dd>
<dd><code>file</code> - file name</dd>
</dl>
</li>
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<h4>MatrixObject</h4>
<pre>public&nbsp;MatrixObject(<a href="../../../../../../org/apache/sysds/common/Types.ValueType.html" title="enum in org.apache.sysds.common">Types.ValueType</a>&nbsp;vt,
<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;file,
<a href="../../../../../../org/apache/sysds/runtime/meta/MetaData.html" title="class in org.apache.sysds.runtime.meta">MetaData</a>&nbsp;mtd)</pre>
<div class="block">Constructor that takes the value type, HDFS filename and associated metadata.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>vt</code> - value type</dd>
<dd><code>file</code> - file name</dd>
<dd><code>mtd</code> - metadata</dd>
</dl>
</li>
</ul>
<a name="MatrixObject-org.apache.sysds.common.Types.ValueType-java.lang.String-org.apache.sysds.runtime.meta.MetaData-org.apache.sysds.runtime.matrix.data.MatrixBlock-">
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<h4>MatrixObject</h4>
<pre>public&nbsp;MatrixObject(<a href="../../../../../../org/apache/sysds/common/Types.ValueType.html" title="enum in org.apache.sysds.common">Types.ValueType</a>&nbsp;vt,
<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;file,
<a href="../../../../../../org/apache/sysds/runtime/meta/MetaData.html" title="class in org.apache.sysds.runtime.meta">MetaData</a>&nbsp;mtd,
<a href="../../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a>&nbsp;data)</pre>
<div class="block">Constructor that takes the value type, HDFS filename and associated metadata and a MatrixBlock
used for creation after serialization</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>vt</code> - value type</dd>
<dd><code>file</code> - file name</dd>
<dd><code>mtd</code> - metadata</dd>
<dd><code>data</code> - matrix block data</dd>
</dl>
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<h4>MatrixObject</h4>
<pre>public&nbsp;MatrixObject(<a href="../../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.html" title="class in org.apache.sysds.runtime.controlprogram.caching">MatrixObject</a>&nbsp;mo)</pre>
<div class="block">Copy constructor that copies meta data but NO data.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>mo</code> - matrix object</dd>
</dl>
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<h4>setUpdateType</h4>
<pre>public&nbsp;void&nbsp;setUpdateType(<a href="../../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.UpdateType.html" title="enum in org.apache.sysds.runtime.controlprogram.caching">MatrixObject.UpdateType</a>&nbsp;flag)</pre>
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<h4>getUpdateType</h4>
<pre>public&nbsp;<a href="../../../../../../org/apache/sysds/runtime/controlprogram/caching/MatrixObject.UpdateType.html" title="enum in org.apache.sysds.runtime.controlprogram.caching">MatrixObject.UpdateType</a>&nbsp;getUpdateType()</pre>
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<pre>public&nbsp;boolean&nbsp;isMarked()</pre>
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<h4>updateDataCharacteristics</h4>
<pre>public&nbsp;void&nbsp;updateDataCharacteristics(<a href="../../../../../../org/apache/sysds/runtime/meta/DataCharacteristics.html" title="class in org.apache.sysds.runtime.meta">DataCharacteristics</a>&nbsp;dc)</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="../../../../../../org/apache/sysds/runtime/instructions/cp/Data.html#updateDataCharacteristics-org.apache.sysds.runtime.meta.DataCharacteristics-">updateDataCharacteristics</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../org/apache/sysds/runtime/instructions/cp/Data.html" title="class in org.apache.sysds.runtime.instructions.cp">Data</a></code></dd>
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<h4>refreshMetaData</h4>
<pre>public&nbsp;void&nbsp;refreshMetaData()</pre>
<div class="block">Make the matrix metadata consistent with the in-memory matrix data</div>
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<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../org/apache/sysds/runtime/controlprogram/caching/CacheableData.html#refreshMetaData--">refreshMetaData</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../org/apache/sysds/runtime/controlprogram/caching/CacheableData.html" title="class in org.apache.sysds.runtime.controlprogram.caching">CacheableData</a>&lt;<a href="../../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a>&gt;</code></dd>
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<h4>getBlocksize</h4>
<pre>public&nbsp;long&nbsp;getBlocksize()</pre>
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<h4>getNnz</h4>
<pre>public&nbsp;long&nbsp;getNnz()</pre>
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<h4>getSparsity</h4>
<pre>public&nbsp;double&nbsp;getSparsity()</pre>
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<h4>setPartitioned</h4>
<pre>public&nbsp;void&nbsp;setPartitioned(<a href="../../../../../../org/apache/sysds/runtime/controlprogram/ParForProgramBlock.PDataPartitionFormat.html" title="enum in org.apache.sysds.runtime.controlprogram">ParForProgramBlock.PDataPartitionFormat</a>&nbsp;format,
int&nbsp;n)</pre>
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<pre>public&nbsp;void&nbsp;unsetPartitioned()</pre>
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<pre>public&nbsp;boolean&nbsp;isPartitioned()</pre>
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<a name="getPartitionFormat--">
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<h4>getPartitionFormat</h4>
<pre>public&nbsp;<a href="../../../../../../org/apache/sysds/runtime/controlprogram/ParForProgramBlock.PDataPartitionFormat.html" title="enum in org.apache.sysds.runtime.controlprogram">ParForProgramBlock.PDataPartitionFormat</a>&nbsp;getPartitionFormat()</pre>
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<pre>public&nbsp;int&nbsp;getPartitionSize()</pre>
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<h4>setInMemoryPartition</h4>
<pre>public&nbsp;void&nbsp;setInMemoryPartition(<a href="../../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a>&nbsp;block)</pre>
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<h4>readMatrixPartition</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;readMatrixPartition(<a href="../../../../../../org/apache/sysds/runtime/util/IndexRange.html" title="class in org.apache.sysds.runtime.util">IndexRange</a>&nbsp;pred)</pre>
<div class="block">NOTE: for reading matrix partitions, we could cache (in its real sense) the read block
with soft references (no need for eviction, as partitioning only applied for read-only matrices).
However, since we currently only support row- and column-wise partitioning caching is not applied yet.
This could be changed once we also support column-block-wise and row-block-wise. Furthermore,
as we reject to partition vectors and support only full row or column indexing, no metadata (apart from
the partition flag) is required.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>pred</code> - index range</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>matrix block</dd>
</dl>
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<h4>getPartitionFileName</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;getPartitionFileName(<a href="../../../../../../org/apache/sysds/runtime/util/IndexRange.html" title="class in org.apache.sysds.runtime.util">IndexRange</a>&nbsp;pred,
int&nbsp;blen)</pre>
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