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| <h2 title="Enum HashJoinState" class="title">Enum HashJoinState</h2> |
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| <li><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Enum.html?is-external=true" title="class or interface in java.lang">java.lang.Enum</a><<a href="../../../../../../../org/apache/drill/exec/physical/impl/join/HashJoinState.html" title="enum in org.apache.drill.exec.physical.impl.join">HashJoinState</a>></li> |
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| <li>org.apache.drill.exec.physical.impl.join.HashJoinState</li> |
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| <pre>public enum <span class="typeNameLabel">HashJoinState</span> |
| extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Enum.html?is-external=true" title="class or interface in java.lang">Enum</a><<a href="../../../../../../../org/apache/drill/exec/physical/impl/join/HashJoinState.html" title="enum in org.apache.drill.exec.physical.impl.join">HashJoinState</a>></pre> |
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| <h3>Enum Constant Summary</h3> |
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| <caption><span>Enum Constants</span><span class="tabEnd"> </span></caption> |
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| <th class="colOne" scope="col">Enum Constant and Description</th> |
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| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/drill/exec/physical/impl/join/HashJoinState.html#BUILD_SIDE_PARTITIONING">BUILD_SIDE_PARTITIONING</a></span></code> |
| <div class="block">In this state, the build side of the join operation is partitioned.</div> |
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| <tr class="rowColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/drill/exec/physical/impl/join/HashJoinState.html#INITIALIZING">INITIALIZING</a></span></code> </td> |
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| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/drill/exec/physical/impl/join/HashJoinState.html#POST_BUILD_CALCULATIONS">POST_BUILD_CALCULATIONS</a></span></code> |
| <div class="block">In this state, the probe side is consumed.</div> |
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| <td class="colFirst"><code>static <a href="../../../../../../../org/apache/drill/exec/physical/impl/join/HashJoinState.html" title="enum in org.apache.drill.exec.physical.impl.join">HashJoinState</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/drill/exec/physical/impl/join/HashJoinState.html#valueOf-java.lang.String-">valueOf</a></span>(<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> name)</code> |
| <div class="block">Returns the enum constant of this type with the specified name.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>static <a href="../../../../../../../org/apache/drill/exec/physical/impl/join/HashJoinState.html" title="enum in org.apache.drill.exec.physical.impl.join">HashJoinState</a>[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/drill/exec/physical/impl/join/HashJoinState.html#values--">values</a></span>()</code> |
| <div class="block">Returns an array containing the constants of this enum type, in |
| the order they are declared.</div> |
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| <h4>INITIALIZING</h4> |
| <pre>public static final <a href="../../../../../../../org/apache/drill/exec/physical/impl/join/HashJoinState.html" title="enum in org.apache.drill.exec.physical.impl.join">HashJoinState</a> INITIALIZING</pre> |
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| <h4>BUILD_SIDE_PARTITIONING</h4> |
| <pre>public static final <a href="../../../../../../../org/apache/drill/exec/physical/impl/join/HashJoinState.html" title="enum in org.apache.drill.exec.physical.impl.join">HashJoinState</a> BUILD_SIDE_PARTITIONING</pre> |
| <div class="block">In this state, the build side of the join operation is partitioned. Each partition is |
| kept in memory. If we are able to fit all the partitions in memory and we have completely |
| consumed the build side then we move to the <a href="../../../../../../../org/apache/drill/exec/physical/impl/join/HashJoinState.html#POST_BUILD_CALCULATIONS"><code>POST_BUILD_CALCULATIONS</code></a>. If we |
| run out of memory and we still have not consumed all of the build side, we start evicting |
| partitions from memory to free memory. Then resume processing the build side. We repeat |
| this process until the entire build side is consumed. After the build side is consumed we |
| proceed to the <a href="../../../../../../../org/apache/drill/exec/physical/impl/join/HashJoinState.html#POST_BUILD_CALCULATIONS"><code>POST_BUILD_CALCULATIONS</code></a> state.</div> |
| </li> |
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| <!-- --> |
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| <li class="blockList"> |
| <h4>POST_BUILD_CALCULATIONS</h4> |
| <pre>public static final <a href="../../../../../../../org/apache/drill/exec/physical/impl/join/HashJoinState.html" title="enum in org.apache.drill.exec.physical.impl.join">HashJoinState</a> POST_BUILD_CALCULATIONS</pre> |
| <div class="block">In this state, the probe side is consumed. If data in the probe side matches a build side partition |
| kept in memory, it is joined and sent out. If data in the probe side does not match a build side |
| partition, then it is spilled to disk. After all the probe side data is consumed processing moves |
| on to the <a href="../../../../../../../org/apache/drill/exec/physical/impl/join/HashJoinState.html#POST_BUILD_CALCULATIONS"><code>POST_BUILD_CALCULATIONS</code></a> state if build side partitions are small enough |
| to fit into memory. If build side partitions can't fit into memory processing moves to the |
| <a href="../../../../../../../org/apache/drill/exec/physical/impl/join/HashJoinState.html#POST_BUILD_CALCULATIONS"><code>POST_BUILD_CALCULATIONS</code></a> |
| state.</div> |
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| <h4>values</h4> |
| <pre>public static <a href="../../../../../../../org/apache/drill/exec/physical/impl/join/HashJoinState.html" title="enum in org.apache.drill.exec.physical.impl.join">HashJoinState</a>[] values()</pre> |
| <div class="block">Returns an array containing the constants of this enum type, in |
| the order they are declared. This method may be used to iterate |
| over the constants as follows: |
| <pre> |
| for (HashJoinState c : HashJoinState.values()) |
| System.out.println(c); |
| </pre></div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>an array containing the constants of this enum type, in the order they are declared</dd> |
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| <pre>public static <a href="../../../../../../../org/apache/drill/exec/physical/impl/join/HashJoinState.html" title="enum in org.apache.drill.exec.physical.impl.join">HashJoinState</a> valueOf(<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> name)</pre> |
| <div class="block">Returns the enum constant of this type with the specified name. |
| The string must match <i>exactly</i> an identifier used to declare an |
| enum constant in this type. (Extraneous whitespace characters are |
| not permitted.)</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>name</code> - the name of the enum constant to be returned.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the enum constant with the specified name</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></code> - if this enum type has no constant with the specified name</dd> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/NullPointerException.html?is-external=true" title="class or interface in java.lang">NullPointerException</a></code> - if the argument is null</dd> |
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