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| <div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">org.apache.iceberg.actions</a></div> |
| <h2 title="Class RewriteDataFilesAction" class="title">Class RewriteDataFilesAction</h2> |
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| <ul class="inheritance"> |
| <li>java.lang.Object</li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.iceberg.actions.RewriteDataFilesAction</li> |
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| <dt>All Implemented Interfaces:</dt> |
| <dd><code><a href="Action.html" title="interface in org.apache.iceberg.actions">Action</a><<a href="RewriteDataFilesActionResult.html" title="class in org.apache.iceberg.actions">RewriteDataFilesActionResult</a>></code>, <code><a href="SnapshotUpdateAction.html" title="interface in org.apache.iceberg.actions">SnapshotUpdateAction</a><<a href="RewriteDataFilesAction.html" title="class in org.apache.iceberg.actions">RewriteDataFilesAction</a>,​<a href="RewriteDataFilesActionResult.html" title="class in org.apache.iceberg.actions">RewriteDataFilesActionResult</a>></code></dd> |
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| <pre>public class <span class="typeNameLabel">RewriteDataFilesAction</span> |
| extends java.lang.Object</pre> |
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| <h3>Method Summary</h3> |
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| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colSecond" scope="col">Method</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>protected void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#commit(org.apache.iceberg.SnapshotUpdate)">commit</a></span>​(<a href="../SnapshotUpdate.html" title="interface in org.apache.iceberg">SnapshotUpdate</a><?> update)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code><a href="RewriteDataFilesActionResult.html" title="class in org.apache.iceberg.actions">RewriteDataFilesActionResult</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#execute()">execute</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Executes this action.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code><a href="RewriteDataFilesAction.html" title="class in org.apache.iceberg.actions">RewriteDataFilesAction</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#filter(org.apache.iceberg.expressions.Expression)">filter</a></span>​(<a href="../expressions/Expression.html" title="interface in org.apache.iceberg.expressions">Expression</a> expr)</code></th> |
| <td class="colLast"> |
| <div class="block">Pass a row Expression to filter DataFiles to be rewritten.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>protected java.lang.String</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#metadataTableName(org.apache.iceberg.MetadataTableType)">metadataTableName</a></span>​(<a href="../MetadataTableType.html" title="enum in org.apache.iceberg">MetadataTableType</a> type)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code><a href="RewriteDataFilesAction.html" title="class in org.apache.iceberg.actions">RewriteDataFilesAction</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#outputSpecId(int)">outputSpecId</a></span>​(int specId)</code></th> |
| <td class="colLast"> |
| <div class="block">Pass a PartitionSpec id to specify which PartitionSpec should be used in DataFile rewrite</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>protected <a href="RewriteDataFilesAction.html" title="class in org.apache.iceberg.actions">RewriteDataFilesAction</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#self()">self</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>ThisT</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#set(java.lang.String,java.lang.String)">set</a></span>​(java.lang.String property, |
| java.lang.String value)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code><a href="RewriteDataFilesAction.html" title="class in org.apache.iceberg.actions">RewriteDataFilesAction</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#splitLookback(int)">splitLookback</a></span>​(int lookback)</code></th> |
| <td class="colLast"> |
| <div class="block">Specify the number of "bins" considered when trying to pack the next file split into a task.</div> |
| </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code><a href="RewriteDataFilesAction.html" title="class in org.apache.iceberg.actions">RewriteDataFilesAction</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#splitOpenFileCost(long)">splitOpenFileCost</a></span>​(long openFileCost)</code></th> |
| <td class="colLast"> |
| <div class="block">Specify the minimum file size to count to pack into one "bin".</div> |
| </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code>protected <a href="../Table.html" title="interface in org.apache.iceberg">Table</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#table()">table</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i10" class="altColor"> |
| <td class="colFirst"><code><a href="RewriteDataFilesAction.html" title="class in org.apache.iceberg.actions">RewriteDataFilesAction</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#targetSizeInBytes(long)">targetSizeInBytes</a></span>​(long targetSize)</code></th> |
| <td class="colLast"> |
| <div class="block">Specify the target rewrite data file size in bytes</div> |
| </td> |
| </tr> |
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| <code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li> |
| </ul> |
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| <h4>self</h4> |
| <pre class="methodSignature">protected <a href="RewriteDataFilesAction.html" title="class in org.apache.iceberg.actions">RewriteDataFilesAction</a> self()</pre> |
| </li> |
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| <h4>table</h4> |
| <pre class="methodSignature">protected <a href="../Table.html" title="interface in org.apache.iceberg">Table</a> table()</pre> |
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| <h4>outputSpecId</h4> |
| <pre class="methodSignature">public <a href="RewriteDataFilesAction.html" title="class in org.apache.iceberg.actions">RewriteDataFilesAction</a> outputSpecId​(int specId)</pre> |
| <div class="block">Pass a PartitionSpec id to specify which PartitionSpec should be used in DataFile rewrite</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>specId</code> - PartitionSpec id to rewrite</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>this for method chaining</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="targetSizeInBytes(long)"> |
| <!-- --> |
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| <li class="blockList"> |
| <h4>targetSizeInBytes</h4> |
| <pre class="methodSignature">public <a href="RewriteDataFilesAction.html" title="class in org.apache.iceberg.actions">RewriteDataFilesAction</a> targetSizeInBytes​(long targetSize)</pre> |
| <div class="block">Specify the target rewrite data file size in bytes</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>targetSize</code> - size in bytes of rewrite data file</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>this for method chaining</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="splitLookback(int)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>splitLookback</h4> |
| <pre class="methodSignature">public <a href="RewriteDataFilesAction.html" title="class in org.apache.iceberg.actions">RewriteDataFilesAction</a> splitLookback​(int lookback)</pre> |
| <div class="block">Specify the number of "bins" considered when trying to pack the next file split into a task. |
| Increasing this usually makes tasks a bit more even by considering more ways to pack file regions into a single |
| task with extra planning cost. |
| <p> |
| This configuration can reorder the incoming file regions, to preserve order for lower/upper bounds in file |
| metadata, user can use a lookback of 1.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>lookback</code> - number of "bins" considered when trying to pack the next file split into a task.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>this for method chaining</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="splitOpenFileCost(long)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>splitOpenFileCost</h4> |
| <pre class="methodSignature">public <a href="RewriteDataFilesAction.html" title="class in org.apache.iceberg.actions">RewriteDataFilesAction</a> splitOpenFileCost​(long openFileCost)</pre> |
| <div class="block">Specify the minimum file size to count to pack into one "bin". If the read file size is smaller than this specified |
| threshold, Iceberg will use this value to do count. |
| <p> |
| this configuration controls the number of files to compact for each task, small value would lead to a |
| high compaction, the default value is 4MB.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>openFileCost</code> - minimum file size to count to pack into one "bin".</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>this for method chaining</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="filter(org.apache.iceberg.expressions.Expression)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>filter</h4> |
| <pre class="methodSignature">public <a href="RewriteDataFilesAction.html" title="class in org.apache.iceberg.actions">RewriteDataFilesAction</a> filter​(<a href="../expressions/Expression.html" title="interface in org.apache.iceberg.expressions">Expression</a> expr)</pre> |
| <div class="block">Pass a row Expression to filter DataFiles to be rewritten. Note that all files that may contain data matching the |
| filter may be rewritten.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>expr</code> - Expression to filter out DataFiles</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>this for method chaining</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="execute()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>execute</h4> |
| <pre class="methodSignature">public <a href="RewriteDataFilesActionResult.html" title="class in org.apache.iceberg.actions">RewriteDataFilesActionResult</a> execute()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="Action.html#execute()">Action</a></code></span></div> |
| <div class="block">Executes this action.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the result of this action</dd> |
| </dl> |
| </li> |
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| <a id="set(java.lang.String,java.lang.String)"> |
| <!-- --> |
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| <h4>set</h4> |
| <pre class="methodSignature">public ThisT set​(java.lang.String property, |
| java.lang.String value)</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="SnapshotUpdateAction.html#set(java.lang.String,java.lang.String)">set</a></code> in interface <code><a href="SnapshotUpdateAction.html" title="interface in org.apache.iceberg.actions">SnapshotUpdateAction</a><ThisT,​R></code></dd> |
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| <!-- --> |
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| <h4>commit</h4> |
| <pre class="methodSignature">protected void commit​(<a href="../SnapshotUpdate.html" title="interface in org.apache.iceberg">SnapshotUpdate</a><?> update)</pre> |
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| <h4>metadataTableName</h4> |
| <pre class="methodSignature">protected java.lang.String metadataTableName​(<a href="../MetadataTableType.html" title="enum in org.apache.iceberg">MetadataTableType</a> type)</pre> |
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