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| <div class="subTitle">org.apache.drill.exec.physical.impl.scan.project</div> |
| <h2 title="Class StaticColumnLoader" class="title">Class StaticColumnLoader</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> |
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| <li>org.apache.drill.exec.physical.impl.scan.project.StaticColumnLoader</li> |
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| <dd><a href="../../../../../../../../org/apache/drill/exec/physical/impl/scan/project/ConstantColumnLoader.html" title="class in org.apache.drill.exec.physical.impl.scan.project">ConstantColumnLoader</a>, <a href="../../../../../../../../org/apache/drill/exec/physical/impl/scan/project/NullColumnLoader.html" title="class in org.apache.drill.exec.physical.impl.scan.project">NullColumnLoader</a></dd> |
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| <pre>public abstract class <span class="typeNameLabel">StaticColumnLoader</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">Base class for columns that take values based on the |
| reader, not individual rows. E.g. null columns (values |
| are all null) or file metadata (AKA "implicit") columns |
| that take values based on the file.</div> |
| </li> |
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| <th class="colLast" scope="col">Field and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected <a href="../../../../../../../../org/apache/drill/exec/physical/resultSet/ResultSetLoader.html" title="interface in org.apache.drill.exec.physical.resultSet">ResultSetLoader</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/drill/exec/physical/impl/scan/project/StaticColumnLoader.html#loader">loader</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected <a href="../../../../../../../../org/apache/drill/exec/physical/resultSet/ResultVectorCache.html" title="interface in org.apache.drill.exec.physical.resultSet">ResultVectorCache</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/drill/exec/physical/impl/scan/project/StaticColumnLoader.html#vectorCache">vectorCache</a></span></code> </td> |
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| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/drill/exec/physical/impl/scan/project/StaticColumnLoader.html#StaticColumnLoader-org.apache.drill.exec.physical.resultSet.ResultVectorCache-">StaticColumnLoader</a></span>(<a href="../../../../../../../../org/apache/drill/exec/physical/resultSet/ResultVectorCache.html" title="interface in org.apache.drill.exec.physical.resultSet">ResultVectorCache</a> vectorCache)</code> </td> |
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| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/drill/exec/physical/impl/scan/project/StaticColumnLoader.html#close--">close</a></span>()</code> </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>abstract <a href="../../../../../../../../org/apache/drill/exec/record/VectorContainer.html" title="class in org.apache.drill.exec.record">VectorContainer</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/drill/exec/physical/impl/scan/project/StaticColumnLoader.html#load-int-">load</a></span>(int rowCount)</code> |
| <div class="block">Populate static vectors with the defined static values.</div> |
| </td> |
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| <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> |
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| <h4>loader</h4> |
| <pre>protected final <a href="../../../../../../../../org/apache/drill/exec/physical/resultSet/ResultSetLoader.html" title="interface in org.apache.drill.exec.physical.resultSet">ResultSetLoader</a> loader</pre> |
| </li> |
| </ul> |
| <a name="vectorCache"> |
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| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>vectorCache</h4> |
| <pre>protected final <a href="../../../../../../../../org/apache/drill/exec/physical/resultSet/ResultVectorCache.html" title="interface in org.apache.drill.exec.physical.resultSet">ResultVectorCache</a> vectorCache</pre> |
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| <h4>StaticColumnLoader</h4> |
| <pre>public StaticColumnLoader(<a href="../../../../../../../../org/apache/drill/exec/physical/resultSet/ResultVectorCache.html" title="interface in org.apache.drill.exec.physical.resultSet">ResultVectorCache</a> vectorCache)</pre> |
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| <h4>load</h4> |
| <pre>public abstract <a href="../../../../../../../../org/apache/drill/exec/record/VectorContainer.html" title="class in org.apache.drill.exec.record">VectorContainer</a> load(int rowCount)</pre> |
| <div class="block">Populate static vectors with the defined static values.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>rowCount</code> - number of rows to generate. Must match the |
| row count in the batch returned by the reader</dd> |
| </dl> |
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| <h4>close</h4> |
| <pre>public void close()</pre> |
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