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| <div class="subTitle">org.apache.sysds.runtime.compress.lib</div> |
| <h2 title="Class BitmapEncoder" class="title">Class BitmapEncoder</h2> |
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| <pre>public class <span class="typeNameLabel">BitmapEncoder</span> |
| extends <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></pre> |
| <div class="block">Static functions for encoding bitmaps in various ways.</div> |
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| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/compress/lib/BitmapEncoder.html#BitmapEncoder--">BitmapEncoder</a></span>()</code> </td> |
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| <td class="colFirst"><code>static <a href="../../../../../../org/apache/sysds/runtime/compress/utils/ABitmap.html" title="class in org.apache.sysds.runtime.compress.utils">ABitmap</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/compress/lib/BitmapEncoder.html#extractBitmap-int:A-int-java.util.BitSet-org.apache.sysds.runtime.compress.CompressionSettings-">extractBitmap</a></span>(int[] colIndices, |
| int rows, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/BitSet.html?is-external=true" title="class or interface in java.util">BitSet</a> rawBlock, |
| <a href="../../../../../../org/apache/sysds/runtime/compress/CompressionSettings.html" title="class in org.apache.sysds.runtime.compress">CompressionSettings</a> compSettings)</code> </td> |
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| <td class="colFirst"><code>static <a href="../../../../../../org/apache/sysds/runtime/compress/utils/Bitmap.html" title="class in org.apache.sysds.runtime.compress.utils">Bitmap</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sysds/runtime/compress/lib/BitmapEncoder.html#extractBitmap-int:A-org.apache.sysds.runtime.matrix.data.MatrixBlock-boolean-">extractBitmap</a></span>(int[] colIndices, |
| <a href="../../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a> rawBlock, |
| boolean transposed)</code> |
| <div class="block">Generate uncompressed bitmaps for a set of columns in an uncompressed matrix block.</div> |
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| <h4>BitmapEncoder</h4> |
| <pre>public BitmapEncoder()</pre> |
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| <h4>extractBitmap</h4> |
| <pre>public static <a href="../../../../../../org/apache/sysds/runtime/compress/utils/Bitmap.html" title="class in org.apache.sysds.runtime.compress.utils">Bitmap</a> extractBitmap(int[] colIndices, |
| <a href="../../../../../../org/apache/sysds/runtime/matrix/data/MatrixBlock.html" title="class in org.apache.sysds.runtime.matrix.data">MatrixBlock</a> rawBlock, |
| boolean transposed)</pre> |
| <div class="block">Generate uncompressed bitmaps for a set of columns in an uncompressed matrix block.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>colIndices</code> - Indexes (within the block) of the columns to extract</dd> |
| <dd><code>rawBlock</code> - An uncompressed matrix block; can be dense or sparse</dd> |
| <dd><code>transposed</code> - Boolean specifying if the rawblock was transposed.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>uncompressed bitmap representation of the columns</dd> |
| </dl> |
| </li> |
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| <pre>public static <a href="../../../../../../org/apache/sysds/runtime/compress/utils/ABitmap.html" title="class in org.apache.sysds.runtime.compress.utils">ABitmap</a> extractBitmap(int[] colIndices, |
| int rows, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/BitSet.html?is-external=true" title="class or interface in java.util">BitSet</a> rawBlock, |
| <a href="../../../../../../org/apache/sysds/runtime/compress/CompressionSettings.html" title="class in org.apache.sysds.runtime.compress">CompressionSettings</a> compSettings)</pre> |
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