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| <div class="subTitle">org.apache.arrow.algorithm.deduplicate</div> |
| <h2 title="Class VectorRunDeduplicator" class="title">Class VectorRunDeduplicator<V extends <a href="../../../../../org/apache/arrow/vector/ValueVector.html" title="interface in org.apache.arrow.vector">ValueVector</a>></h2> |
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| <li>org.apache.arrow.algorithm.deduplicate.VectorRunDeduplicator<V></li> |
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| <dt><span class="paramLabel">Type Parameters:</span></dt> |
| <dd><code>V</code> - vector type.</dd> |
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| <pre>public class <span class="typeNameLabel">VectorRunDeduplicator<V extends <a href="../../../../../org/apache/arrow/vector/ValueVector.html" title="interface in org.apache.arrow.vector">ValueVector</a>></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> |
| implements <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/AutoCloseable.html?is-external=true" title="class or interface in java.lang">AutoCloseable</a></pre> |
| <div class="block">Remove adjacent equal elements from a vector. |
| If the vector is sorted, it removes all duplicated values in the vector.</div> |
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| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/arrow/algorithm/deduplicate/VectorRunDeduplicator.html#VectorRunDeduplicator-V-org.apache.arrow.memory.BufferAllocator-">VectorRunDeduplicator</a></span>(<a href="../../../../../org/apache/arrow/algorithm/deduplicate/VectorRunDeduplicator.html" title="type parameter in VectorRunDeduplicator">V</a> vector, |
| <a href="../../../../../org/apache/arrow/memory/BufferAllocator.html" title="interface in org.apache.arrow.memory">BufferAllocator</a> allocator)</code> |
| <div class="block">Constructs a vector run deduplicator for a given vector.</div> |
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| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/arrow/algorithm/deduplicate/VectorRunDeduplicator.html#close--">close</a></span>()</code> </td> |
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| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/arrow/algorithm/deduplicate/VectorRunDeduplicator.html#getRunCount--">getRunCount</a></span>()</code> |
| <div class="block">Gets the number of values which are different from their predecessor.</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/arrow/algorithm/deduplicate/VectorRunDeduplicator.html#populateDeduplicatedValues-V-">populateDeduplicatedValues</a></span>(<a href="../../../../../org/apache/arrow/algorithm/deduplicate/VectorRunDeduplicator.html" title="type parameter in VectorRunDeduplicator">V</a> outVector)</code> |
| <div class="block">Gets the vector with deduplicated adjacent values removed.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/arrow/algorithm/deduplicate/VectorRunDeduplicator.html#populateRunLengths-org.apache.arrow.vector.IntVector-">populateRunLengths</a></span>(<a href="../../../../../org/apache/arrow/vector/IntVector.html" title="class in org.apache.arrow.vector">IntVector</a> lengthVector)</code> |
| <div class="block">Gets the length of each distinct value.</div> |
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| <h3>Constructor Detail</h3> |
| <a name="VectorRunDeduplicator-org.apache.arrow.vector.ValueVector-org.apache.arrow.memory.BufferAllocator-"> |
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| <h4>VectorRunDeduplicator</h4> |
| <pre>public VectorRunDeduplicator(<a href="../../../../../org/apache/arrow/algorithm/deduplicate/VectorRunDeduplicator.html" title="type parameter in VectorRunDeduplicator">V</a> vector, |
| <a href="../../../../../org/apache/arrow/memory/BufferAllocator.html" title="interface in org.apache.arrow.memory">BufferAllocator</a> allocator)</pre> |
| <div class="block">Constructs a vector run deduplicator for a given vector.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>vector</code> - the vector to deduplicate. Ownership is NOT taken.</dd> |
| <dd><code>allocator</code> - the allocator used for allocating buffers for start indices.</dd> |
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| <h4>getRunCount</h4> |
| <pre>public int getRunCount()</pre> |
| <div class="block">Gets the number of values which are different from their predecessor.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the run count.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="populateDeduplicatedValues-org.apache.arrow.vector.ValueVector-"> |
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| <h4>populateDeduplicatedValues</h4> |
| <pre>public void populateDeduplicatedValues(<a href="../../../../../org/apache/arrow/algorithm/deduplicate/VectorRunDeduplicator.html" title="type parameter in VectorRunDeduplicator">V</a> outVector)</pre> |
| <div class="block">Gets the vector with deduplicated adjacent values removed.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>outVector</code> - the output vector.</dd> |
| </dl> |
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| <h4>populateRunLengths</h4> |
| <pre>public void populateRunLengths(<a href="../../../../../org/apache/arrow/vector/IntVector.html" title="class in org.apache.arrow.vector">IntVector</a> lengthVector)</pre> |
| <div class="block">Gets the length of each distinct value.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>lengthVector</code> - the vector for holding length values.</dd> |
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