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| <div class="subTitle">org.apache.drill.exec.physical.resultSet.impl</div> |
| <h2 title="Class ColumnState" class="title">Class ColumnState</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> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.drill.exec.physical.resultSet.impl.ColumnState</li> |
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| <dt>Direct Known Subclasses:</dt> |
| <dd><a href="../../../../../../../org/apache/drill/exec/physical/resultSet/impl/ColumnState.BaseContainerColumnState.html" title="class in org.apache.drill.exec.physical.resultSet.impl">ColumnState.BaseContainerColumnState</a>, <a href="../../../../../../../org/apache/drill/exec/physical/resultSet/impl/ColumnState.PrimitiveColumnState.html" title="class in org.apache.drill.exec.physical.resultSet.impl">ColumnState.PrimitiveColumnState</a></dd> |
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| <br> |
| <pre>public abstract class <span class="typeNameLabel">ColumnState</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">Represents the write-time state for a column including the writer and the (optional) |
| backing vector. Implements per-column operations such as vector overflow. If a column |
| is a (possibly repeated) map, then the column state will hold a tuple state. |
| <p> |
| If a column is not projected, then the writer exists (to make life easier for the |
| reader), but there will be no vector backing the writer. |
| <p> |
| Different columns need different kinds of vectors: a data vector, possibly an offset |
| vector, or even a non-existent vector. The <a href="../../../../../../../org/apache/drill/exec/physical/resultSet/impl/VectorState.html" title="interface in org.apache.drill.exec.physical.resultSet.impl"><code>VectorState</code></a> class abstracts out |
| these differences.</div> |
| </li> |
| </ul> |
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| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Class and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/drill/exec/physical/resultSet/impl/ColumnState.BaseContainerColumnState.html" title="class in org.apache.drill.exec.physical.resultSet.impl">ColumnState.BaseContainerColumnState</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/drill/exec/physical/resultSet/impl/ColumnState.PrimitiveColumnState.html" title="class in org.apache.drill.exec.physical.resultSet.impl">ColumnState.PrimitiveColumnState</a></span></code> |
| <div class="block">Primitive (non-map) column state.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected static class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/drill/exec/physical/resultSet/impl/ColumnState.State.html" title="enum in org.apache.drill.exec.physical.resultSet.impl">ColumnState.State</a></span></code> |
| <div class="block">Columns move through various lifecycle states as identified by this |
| enum.</div> |
| </td> |
| </tr> |
| </table> |
| </li> |
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| <td class="colFirst"><code>protected int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/drill/exec/physical/resultSet/impl/ColumnState.html#addVersion">addVersion</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/drill/exec/physical/resultSet/impl/ColumnState.html#cardinality">cardinality</a></span></code> |
| <div class="block">Cardinality of the value itself.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected org.apache.drill.exec.physical.resultSet.impl.LoaderInternals</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/drill/exec/physical/resultSet/impl/ColumnState.html#loader">loader</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/drill/exec/physical/resultSet/impl/ColumnState.html#outputIndex">outputIndex</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected <a href="../../../../../../../org/apache/drill/exec/physical/resultSet/impl/ColumnState.State.html" title="enum in org.apache.drill.exec.physical.resultSet.impl">ColumnState.State</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/drill/exec/physical/resultSet/impl/ColumnState.html#state">state</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected <a href="../../../../../../../org/apache/drill/exec/physical/resultSet/impl/VectorState.html" title="interface in org.apache.drill.exec.physical.resultSet.impl">VectorState</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/drill/exec/physical/resultSet/impl/ColumnState.html#vectorState">vectorState</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected <a href="../../../../../../../org/apache/drill/exec/vector/accessor/writer/AbstractObjectWriter.html" title="class in org.apache.drill.exec.vector.accessor.writer">AbstractObjectWriter</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/drill/exec/physical/resultSet/impl/ColumnState.html#writer">writer</a></span></code> </td> |
| </tr> |
| </table> |
| </li> |
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| <caption><span>Constructors</span><span class="tabEnd"> </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/drill/exec/physical/resultSet/impl/ColumnState.html#ColumnState-org.apache.drill.exec.physical.resultSet.impl.LoaderInternals-org.apache.drill.exec.vector.accessor.writer.AbstractObjectWriter-org.apache.drill.exec.physical.resultSet.impl.VectorState-">ColumnState</a></span>(org.apache.drill.exec.physical.resultSet.impl.LoaderInternals loader, |
| <a href="../../../../../../../org/apache/drill/exec/vector/accessor/writer/AbstractObjectWriter.html" title="class in org.apache.drill.exec.vector.accessor.writer">AbstractObjectWriter</a> writer, |
| <a href="../../../../../../../org/apache/drill/exec/physical/resultSet/impl/VectorState.html" title="interface in org.apache.drill.exec.physical.resultSet.impl">VectorState</a> vectorState)</code> </td> |
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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"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t3" class="tableTab"><span><a href="javascript:show(4);">Abstract Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </span></span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
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| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/drill/exec/physical/resultSet/impl/ColumnState.html#allocateVectors--">allocateVectors</a></span>()</code> </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/drill/exec/physical/resultSet/impl/ColumnState.html#buildOutput-org.apache.drill.exec.physical.resultSet.impl.TupleState-">buildOutput</a></span>(<a href="../../../../../../../org/apache/drill/exec/physical/resultSet/impl/TupleState.html" title="class in org.apache.drill.exec.physical.resultSet.impl">TupleState</a> tupleState)</code> </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/drill/exec/physical/resultSet/impl/ColumnState.html#close--">close</a></span>()</code> </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/drill/exec/physical/resultSet/impl/ColumnState.html#dump-org.apache.drill.exec.vector.accessor.impl.HierarchicalFormatter-">dump</a></span>(<a href="../../../../../../../org/apache/drill/exec/vector/accessor/impl/HierarchicalFormatter.html" title="interface in org.apache.drill.exec.vector.accessor.impl">HierarchicalFormatter</a> format)</code> </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/drill/exec/physical/resultSet/impl/ColumnState.html#harvestWithLookAhead--">harvestWithLookAhead</a></span>()</code> |
| <div class="block">Writing of a row batch is complete.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/drill/exec/physical/resultSet/impl/ColumnState.html#innerCardinality--">innerCardinality</a></span>()</code> </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/drill/exec/physical/resultSet/impl/ColumnState.html#isProjected--">isProjected</a></span>()</code> </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/drill/exec/physical/resultSet/impl/ColumnState.html#outerCardinality--">outerCardinality</a></span>()</code> </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code>abstract <a href="../../../../../../../org/apache/drill/exec/record/metadata/ColumnMetadata.html" title="interface in org.apache.drill.exec.record.metadata">ColumnMetadata</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/drill/exec/physical/resultSet/impl/ColumnState.html#outputSchema--">outputSchema</a></span>()</code> </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/drill/exec/physical/resultSet/impl/ColumnState.html#rollover--">rollover</a></span>()</code> |
| <div class="block">A column within the row batch overflowed.</div> |
| </td> |
| </tr> |
| <tr id="i10" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../../../org/apache/drill/exec/record/metadata/ColumnMetadata.html" title="interface in org.apache.drill.exec.record.metadata">ColumnMetadata</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/drill/exec/physical/resultSet/impl/ColumnState.html#schema--">schema</a></span>()</code> </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/drill/exec/physical/resultSet/impl/ColumnState.html#startBatch-boolean-">startBatch</a></span>(boolean schemaOnly)</code> |
| <div class="block">Prepare the column for a new row batch after overflow on the previous |
| batch.</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/drill/exec/physical/resultSet/impl/ColumnState.html#updateCardinality-int-">updateCardinality</a></span>(int cardinality)</code> </td> |
| </tr> |
| <tr id="i13" class="rowColor"> |
| <td class="colFirst"><code><T extends <a href="../../../../../../../org/apache/drill/exec/vector/ValueVector.html" title="interface in org.apache.drill.exec.vector">ValueVector</a>><br>T</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/drill/exec/physical/resultSet/impl/ColumnState.html#vector--">vector</a></span>()</code> </td> |
| </tr> |
| <tr id="i14" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../../../org/apache/drill/exec/physical/resultSet/impl/VectorState.html" title="interface in org.apache.drill.exec.physical.resultSet.impl">VectorState</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/drill/exec/physical/resultSet/impl/ColumnState.html#vectorState--">vectorState</a></span>()</code> </td> |
| </tr> |
| <tr id="i15" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../../../org/apache/drill/exec/vector/accessor/writer/AbstractObjectWriter.html" title="class in org.apache.drill.exec.vector.accessor.writer">AbstractObjectWriter</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/drill/exec/physical/resultSet/impl/ColumnState.html#writer--">writer</a></span>()</code> </td> |
| </tr> |
| </table> |
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| <li class="blockList"><a name="methods.inherited.from.class.java.lang.Object"> |
| <!-- --> |
| </a> |
| <h3>Methods inherited from class 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#clone--" title="class or interface in java.lang">clone</a>, <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#finalize--" title="class or interface in java.lang">finalize</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#toString--" title="class or interface in java.lang">toString</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> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
| <ul class="blockList"> |
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| <!-- ============ FIELD DETAIL =========== --> |
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| </a> |
| <h3>Field Detail</h3> |
| <a name="loader"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>loader</h4> |
| <pre>protected final org.apache.drill.exec.physical.resultSet.impl.LoaderInternals loader</pre> |
| </li> |
| </ul> |
| <a name="addVersion"> |
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| </a> |
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| <li class="blockList"> |
| <h4>addVersion</h4> |
| <pre>protected final int addVersion</pre> |
| </li> |
| </ul> |
| <a name="vectorState"> |
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| </a> |
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| <h4>vectorState</h4> |
| <pre>protected final <a href="../../../../../../../org/apache/drill/exec/physical/resultSet/impl/VectorState.html" title="interface in org.apache.drill.exec.physical.resultSet.impl">VectorState</a> vectorState</pre> |
| </li> |
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| <a name="state"> |
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| <h4>state</h4> |
| <pre>protected <a href="../../../../../../../org/apache/drill/exec/physical/resultSet/impl/ColumnState.State.html" title="enum in org.apache.drill.exec.physical.resultSet.impl">ColumnState.State</a> state</pre> |
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| <h4>writer</h4> |
| <pre>protected <a href="../../../../../../../org/apache/drill/exec/vector/accessor/writer/AbstractObjectWriter.html" title="class in org.apache.drill.exec.vector.accessor.writer">AbstractObjectWriter</a> writer</pre> |
| </li> |
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| <a name="cardinality"> |
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| </a> |
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| <h4>cardinality</h4> |
| <pre>protected int cardinality</pre> |
| <div class="block">Cardinality of the value itself. If this is an array, |
| then this is the number of arrays. A separate number, |
| the inner cardinality, is computed as the outer cardinality |
| times the expected array count (from metadata.) The inner |
| cardinality is the total number of array items in the |
| vector.</div> |
| </li> |
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| </a> |
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| <h4>outputIndex</h4> |
| <pre>protected int outputIndex</pre> |
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| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="constructor.detail"> |
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| </a> |
| <h3>Constructor Detail</h3> |
| <a name="ColumnState-org.apache.drill.exec.physical.resultSet.impl.LoaderInternals-org.apache.drill.exec.vector.accessor.writer.AbstractObjectWriter-org.apache.drill.exec.physical.resultSet.impl.VectorState-"> |
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| <h4>ColumnState</h4> |
| <pre>public ColumnState(org.apache.drill.exec.physical.resultSet.impl.LoaderInternals loader, |
| <a href="../../../../../../../org/apache/drill/exec/vector/accessor/writer/AbstractObjectWriter.html" title="class in org.apache.drill.exec.vector.accessor.writer">AbstractObjectWriter</a> writer, |
| <a href="../../../../../../../org/apache/drill/exec/physical/resultSet/impl/VectorState.html" title="interface in org.apache.drill.exec.physical.resultSet.impl">VectorState</a> vectorState)</pre> |
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| <h4>writer</h4> |
| <pre>public <a href="../../../../../../../org/apache/drill/exec/vector/accessor/writer/AbstractObjectWriter.html" title="class in org.apache.drill.exec.vector.accessor.writer">AbstractObjectWriter</a> writer()</pre> |
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| </a> |
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| <h4>schema</h4> |
| <pre>public <a href="../../../../../../../org/apache/drill/exec/record/metadata/ColumnMetadata.html" title="interface in org.apache.drill.exec.record.metadata">ColumnMetadata</a> schema()</pre> |
| </li> |
| </ul> |
| <a name="vectorState--"> |
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| </a> |
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| <h4>vectorState</h4> |
| <pre>public <a href="../../../../../../../org/apache/drill/exec/physical/resultSet/impl/VectorState.html" title="interface in org.apache.drill.exec.physical.resultSet.impl">VectorState</a> vectorState()</pre> |
| </li> |
| </ul> |
| <a name="vector--"> |
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| </a> |
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| <h4>vector</h4> |
| <pre>public <T extends <a href="../../../../../../../org/apache/drill/exec/vector/ValueVector.html" title="interface in org.apache.drill.exec.vector">ValueVector</a>> T vector()</pre> |
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| <h4>allocateVectors</h4> |
| <pre>public void allocateVectors()</pre> |
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| </a> |
| <ul class="blockList"> |
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| <h4>startBatch</h4> |
| <pre>public void startBatch(boolean schemaOnly)</pre> |
| <div class="block">Prepare the column for a new row batch after overflow on the previous |
| batch. Restore the look-ahead buffer to the |
| active vector so we start writing where we left off.</div> |
| </li> |
| </ul> |
| <a name="rollover--"> |
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| </a> |
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| <h4>rollover</h4> |
| <pre>public void rollover()</pre> |
| <div class="block">A column within the row batch overflowed. Prepare to absorb the rest of the |
| in-flight row by rolling values over to a new vector, saving the complete |
| vector for later. This column could have a value for the overflow row, or |
| for some previous row, depending on exactly when and where the overflow |
| occurs.</div> |
| </li> |
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| <h4>harvestWithLookAhead</h4> |
| <pre>public void harvestWithLookAhead()</pre> |
| <div class="block">Writing of a row batch is complete. Prepare the vector for harvesting |
| to send downstream. If this batch encountered overflow, set aside the |
| look-ahead vector and put the full vector buffer back into the active |
| vector.</div> |
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| <h4>isProjected</h4> |
| <pre>public boolean isProjected()</pre> |
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| <h4>updateCardinality</h4> |
| <pre>public void updateCardinality(int cardinality)</pre> |
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| <h4>outerCardinality</h4> |
| <pre>public int outerCardinality()</pre> |
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| <h4>innerCardinality</h4> |
| <pre>public int innerCardinality()</pre> |
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| </a> |
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| <h4>buildOutput</h4> |
| <pre>public void buildOutput(<a href="../../../../../../../org/apache/drill/exec/physical/resultSet/impl/TupleState.html" title="class in org.apache.drill.exec.physical.resultSet.impl">TupleState</a> tupleState)</pre> |
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| <a name="outputSchema--"> |
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| <h4>outputSchema</h4> |
| <pre>public abstract <a href="../../../../../../../org/apache/drill/exec/record/metadata/ColumnMetadata.html" title="interface in org.apache.drill.exec.record.metadata">ColumnMetadata</a> outputSchema()</pre> |
| </li> |
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| <pre>public void close()</pre> |
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| <h4>dump</h4> |
| <pre>public void dump(<a href="../../../../../../../org/apache/drill/exec/vector/accessor/impl/HierarchicalFormatter.html" title="interface in org.apache.drill.exec.vector.accessor.impl">HierarchicalFormatter</a> format)</pre> |
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