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| <li>Summary: </li> |
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| <div class="subTitle">org.apache.iceberg.actions</div> |
| <h2 title="Class SortStrategy" class="title">Class SortStrategy</h2> |
| </div> |
| <div class="contentContainer"> |
| <ul class="inheritance"> |
| <li>java.lang.Object</li> |
| <li> |
| <ul class="inheritance"> |
| <li><a href="../../../../org/apache/iceberg/actions/BinPackStrategy.html" title="class in org.apache.iceberg.actions">org.apache.iceberg.actions.BinPackStrategy</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.iceberg.actions.SortStrategy</li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| <div class="description"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <dl> |
| <dt>All Implemented Interfaces:</dt> |
| <dd>java.io.Serializable, <a href="../../../../org/apache/iceberg/actions/RewriteStrategy.html" title="interface in org.apache.iceberg.actions">RewriteStrategy</a></dd> |
| </dl> |
| <dl> |
| <dt>Direct Known Subclasses:</dt> |
| <dd><a href="../../../../org/apache/iceberg/spark/actions/Spark3SortStrategy.html" title="class in org.apache.iceberg.spark.actions">Spark3SortStrategy</a></dd> |
| </dl> |
| <hr> |
| <br> |
| <pre>public abstract class <span class="typeNameLabel">SortStrategy</span> |
| extends <a href="../../../../org/apache/iceberg/actions/BinPackStrategy.html" title="class in org.apache.iceberg.actions">BinPackStrategy</a></pre> |
| <div class="block">A rewrite strategy for data files which aims to reorder data with data files to optimally lay them out |
| in relation to a column. For example, if the Sort strategy is used on a set of files which is ordered |
| by column x and original has files File A (x: 0 - 50), File B ( x: 10 - 40) and File C ( x: 30 - 60), |
| this Strategy will attempt to rewrite those files into File A' (x: 0-20), File B' (x: 21 - 40), |
| File C' (x: 41 - 60). |
| <p> |
| Currently the there is no file overlap detection and we will rewrite all files if <a href="../../../../org/apache/iceberg/actions/SortStrategy.html#REWRITE_ALL"><code>REWRITE_ALL</code></a> |
| is true (default: false). If this property is disabled any files that would be chosen by |
| <a href="../../../../org/apache/iceberg/actions/BinPackStrategy.html" title="class in org.apache.iceberg.actions"><code>BinPackStrategy</code></a> will be rewrite candidates. |
| <p> |
| In the future other algorithms for determining files to rewrite will be provided.</div> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../serialized-form.html#org.apache.iceberg.actions.SortStrategy">Serialized Form</a></dd> |
| </dl> |
| </li> |
| </ul> |
| </div> |
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| <!-- =========== FIELD SUMMARY =========== --> |
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| <h3>Field Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Field Summary table, listing fields, and an explanation"> |
| <caption><span>Fields</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Field and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static java.lang.String</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/iceberg/actions/SortStrategy.html#REWRITE_ALL">REWRITE_ALL</a></span></code> |
| <div class="block">Rewrites all files, regardless of their size.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/iceberg/actions/SortStrategy.html#REWRITE_ALL_DEFAULT">REWRITE_ALL_DEFAULT</a></span></code> </td> |
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| <h3>Fields inherited from class org.apache.iceberg.actions.<a href="../../../../org/apache/iceberg/actions/BinPackStrategy.html" title="class in org.apache.iceberg.actions">BinPackStrategy</a></h3> |
| <code><a href="../../../../org/apache/iceberg/actions/BinPackStrategy.html#DELETE_FILE_THRESHOLD">DELETE_FILE_THRESHOLD</a>, <a href="../../../../org/apache/iceberg/actions/BinPackStrategy.html#DELETE_FILE_THRESHOLD_DEFAULT">DELETE_FILE_THRESHOLD_DEFAULT</a>, <a href="../../../../org/apache/iceberg/actions/BinPackStrategy.html#MAX_FILE_SIZE_BYTES">MAX_FILE_SIZE_BYTES</a>, <a href="../../../../org/apache/iceberg/actions/BinPackStrategy.html#MAX_FILE_SIZE_DEFAULT_RATIO">MAX_FILE_SIZE_DEFAULT_RATIO</a>, <a href="../../../../org/apache/iceberg/actions/BinPackStrategy.html#MIN_FILE_SIZE_BYTES">MIN_FILE_SIZE_BYTES</a>, <a href="../../../../org/apache/iceberg/actions/BinPackStrategy.html#MIN_FILE_SIZE_DEFAULT_RATIO">MIN_FILE_SIZE_DEFAULT_RATIO</a>, <a href="../../../../org/apache/iceberg/actions/BinPackStrategy.html#MIN_INPUT_FILES">MIN_INPUT_FILES</a>, <a href="../../../../org/apache/iceberg/actions/BinPackStrategy.html#MIN_INPUT_FILES_DEFAULT">MIN_INPUT_FILES_DEFAULT</a></code></li> |
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| <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/iceberg/actions/SortStrategy.html#SortStrategy--">SortStrategy</a></span>()</code> </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| <!-- ========== METHOD SUMMARY =========== --> |
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| </a> |
| <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="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> |
| <th class="colLast" scope="col">Method and Description</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>java.lang.String</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/iceberg/actions/SortStrategy.html#name--">name</a></span>()</code> |
| <div class="block">Returns the name of this rewrite strategy</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../org/apache/iceberg/actions/RewriteStrategy.html" title="interface in org.apache.iceberg.actions">RewriteStrategy</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/iceberg/actions/SortStrategy.html#options-java.util.Map-">options</a></span>(java.util.Map<java.lang.String,java.lang.String> options)</code> |
| <div class="block">Sets options to be used with this strategy</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>java.lang.Iterable<java.util.List<<a href="../../../../org/apache/iceberg/FileScanTask.html" title="interface in org.apache.iceberg">FileScanTask</a>>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/iceberg/actions/SortStrategy.html#planFileGroups-java.lang.Iterable-">planFileGroups</a></span>(java.lang.Iterable<<a href="../../../../org/apache/iceberg/FileScanTask.html" title="interface in org.apache.iceberg">FileScanTask</a>> dataFiles)</code> |
| <div class="block">Groups file scans into lists which will be processed in a single executable unit.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>java.lang.Iterable<<a href="../../../../org/apache/iceberg/FileScanTask.html" title="interface in org.apache.iceberg">FileScanTask</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/iceberg/actions/SortStrategy.html#selectFilesToRewrite-java.lang.Iterable-">selectFilesToRewrite</a></span>(java.lang.Iterable<<a href="../../../../org/apache/iceberg/FileScanTask.html" title="interface in org.apache.iceberg">FileScanTask</a>> dataFiles)</code> |
| <div class="block">Selects files which this strategy believes are valid targets to be rewritten.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>protected <a href="../../../../org/apache/iceberg/SortOrder.html" title="class in org.apache.iceberg">SortOrder</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/iceberg/actions/SortStrategy.html#sortOrder--">sortOrder</a></span>()</code> </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../org/apache/iceberg/actions/SortStrategy.html" title="class in org.apache.iceberg.actions">SortStrategy</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/iceberg/actions/SortStrategy.html#sortOrder-org.apache.iceberg.SortOrder-">sortOrder</a></span>(<a href="../../../../org/apache/iceberg/SortOrder.html" title="class in org.apache.iceberg">SortOrder</a> order)</code> |
| <div class="block">Sets the sort order to be used in this strategy when rewriting files</div> |
| </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>protected void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/iceberg/actions/SortStrategy.html#validateOptions--">validateOptions</a></span>()</code> </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>java.util.Set<java.lang.String></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/iceberg/actions/SortStrategy.html#validOptions--">validOptions</a></span>()</code> |
| <div class="block">Returns a set of options which this rewrite strategy can use.</div> |
| </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
| <li class="blockList"><a name="methods.inherited.from.class.org.apache.iceberg.actions.BinPackStrategy"> |
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| </a> |
| <h3>Methods inherited from class org.apache.iceberg.actions.<a href="../../../../org/apache/iceberg/actions/BinPackStrategy.html" title="class in org.apache.iceberg.actions">BinPackStrategy</a></h3> |
| <code><a href="../../../../org/apache/iceberg/actions/BinPackStrategy.html#inputFileSize-java.util.List-">inputFileSize</a>, <a href="../../../../org/apache/iceberg/actions/BinPackStrategy.html#maxGroupSize--">maxGroupSize</a>, <a href="../../../../org/apache/iceberg/actions/BinPackStrategy.html#numOutputFiles-long-">numOutputFiles</a>, <a href="../../../../org/apache/iceberg/actions/BinPackStrategy.html#splitSize-long-">splitSize</a>, <a href="../../../../org/apache/iceberg/actions/BinPackStrategy.html#targetFileSize--">targetFileSize</a>, <a href="../../../../org/apache/iceberg/actions/BinPackStrategy.html#writeMaxFileSize--">writeMaxFileSize</a></code></li> |
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| <h3>Methods inherited from class java.lang.Object</h3> |
| <code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li> |
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| </a> |
| <h3>Methods inherited from interface org.apache.iceberg.actions.<a href="../../../../org/apache/iceberg/actions/RewriteStrategy.html" title="interface in org.apache.iceberg.actions">RewriteStrategy</a></h3> |
| <code><a href="../../../../org/apache/iceberg/actions/RewriteStrategy.html#rewriteFiles-java.util.List-">rewriteFiles</a>, <a href="../../../../org/apache/iceberg/actions/RewriteStrategy.html#table--">table</a></code></li> |
| </ul> |
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| </ul> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
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| <!-- ============ FIELD DETAIL =========== --> |
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| <h3>Field Detail</h3> |
| <a name="REWRITE_ALL"> |
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| <h4>REWRITE_ALL</h4> |
| <pre>public static final java.lang.String REWRITE_ALL</pre> |
| <div class="block">Rewrites all files, regardless of their size. Defaults to false, rewriting only mis-sized |
| files;</div> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../constant-values.html#org.apache.iceberg.actions.SortStrategy.REWRITE_ALL">Constant Field Values</a></dd> |
| </dl> |
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| </ul> |
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| <h4>REWRITE_ALL_DEFAULT</h4> |
| <pre>public static final boolean REWRITE_ALL_DEFAULT</pre> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../constant-values.html#org.apache.iceberg.actions.SortStrategy.REWRITE_ALL_DEFAULT">Constant Field Values</a></dd> |
| </dl> |
| </li> |
| </ul> |
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| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
| <ul class="blockList"> |
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| <h3>Constructor Detail</h3> |
| <a name="SortStrategy--"> |
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| <h4>SortStrategy</h4> |
| <pre>public SortStrategy()</pre> |
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| <!-- ============ METHOD DETAIL ========== --> |
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| <li class="blockList"><a name="method.detail"> |
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| <h3>Method Detail</h3> |
| <a name="sortOrder-org.apache.iceberg.SortOrder-"> |
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| <h4>sortOrder</h4> |
| <pre>public <a href="../../../../org/apache/iceberg/actions/SortStrategy.html" title="class in org.apache.iceberg.actions">SortStrategy</a> sortOrder(<a href="../../../../org/apache/iceberg/SortOrder.html" title="class in org.apache.iceberg">SortOrder</a> order)</pre> |
| <div class="block">Sets the sort order to be used in this strategy when rewriting files</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>order</code> - the order to use</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>this for method chaining</dd> |
| </dl> |
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| <a name="sortOrder--"> |
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| <h4>sortOrder</h4> |
| <pre>protected <a href="../../../../org/apache/iceberg/SortOrder.html" title="class in org.apache.iceberg">SortOrder</a> sortOrder()</pre> |
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| <a name="name--"> |
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| <h4>name</h4> |
| <pre>public java.lang.String name()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../org/apache/iceberg/actions/RewriteStrategy.html#name--">RewriteStrategy</a></code></span></div> |
| <div class="block">Returns the name of this rewrite strategy</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../org/apache/iceberg/actions/RewriteStrategy.html#name--">name</a></code> in interface <code><a href="../../../../org/apache/iceberg/actions/RewriteStrategy.html" title="interface in org.apache.iceberg.actions">RewriteStrategy</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../org/apache/iceberg/actions/BinPackStrategy.html#name--">name</a></code> in class <code><a href="../../../../org/apache/iceberg/actions/BinPackStrategy.html" title="class in org.apache.iceberg.actions">BinPackStrategy</a></code></dd> |
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| <a name="validOptions--"> |
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| <h4>validOptions</h4> |
| <pre>public java.util.Set<java.lang.String> validOptions()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../org/apache/iceberg/actions/RewriteStrategy.html#validOptions--">RewriteStrategy</a></code></span></div> |
| <div class="block">Returns a set of options which this rewrite strategy can use. This is an allowed-list and any options not |
| specified here will be rejected at runtime.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../org/apache/iceberg/actions/RewriteStrategy.html#validOptions--">validOptions</a></code> in interface <code><a href="../../../../org/apache/iceberg/actions/RewriteStrategy.html" title="interface in org.apache.iceberg.actions">RewriteStrategy</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../org/apache/iceberg/actions/BinPackStrategy.html#validOptions--">validOptions</a></code> in class <code><a href="../../../../org/apache/iceberg/actions/BinPackStrategy.html" title="class in org.apache.iceberg.actions">BinPackStrategy</a></code></dd> |
| </dl> |
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| <a name="options-java.util.Map-"> |
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| <h4>options</h4> |
| <pre>public <a href="../../../../org/apache/iceberg/actions/RewriteStrategy.html" title="interface in org.apache.iceberg.actions">RewriteStrategy</a> options(java.util.Map<java.lang.String,java.lang.String> options)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../org/apache/iceberg/actions/RewriteStrategy.html#options-java.util.Map-">RewriteStrategy</a></code></span></div> |
| <div class="block">Sets options to be used with this strategy</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../org/apache/iceberg/actions/RewriteStrategy.html#options-java.util.Map-">options</a></code> in interface <code><a href="../../../../org/apache/iceberg/actions/RewriteStrategy.html" title="interface in org.apache.iceberg.actions">RewriteStrategy</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../org/apache/iceberg/actions/BinPackStrategy.html#options-java.util.Map-">options</a></code> in class <code><a href="../../../../org/apache/iceberg/actions/BinPackStrategy.html" title="class in org.apache.iceberg.actions">BinPackStrategy</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="selectFilesToRewrite-java.lang.Iterable-"> |
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| <li class="blockList"> |
| <h4>selectFilesToRewrite</h4> |
| <pre>public java.lang.Iterable<<a href="../../../../org/apache/iceberg/FileScanTask.html" title="interface in org.apache.iceberg">FileScanTask</a>> selectFilesToRewrite(java.lang.Iterable<<a href="../../../../org/apache/iceberg/FileScanTask.html" title="interface in org.apache.iceberg">FileScanTask</a>> dataFiles)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../org/apache/iceberg/actions/RewriteStrategy.html#selectFilesToRewrite-java.lang.Iterable-">RewriteStrategy</a></code></span></div> |
| <div class="block">Selects files which this strategy believes are valid targets to be rewritten.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../org/apache/iceberg/actions/RewriteStrategy.html#selectFilesToRewrite-java.lang.Iterable-">selectFilesToRewrite</a></code> in interface <code><a href="../../../../org/apache/iceberg/actions/RewriteStrategy.html" title="interface in org.apache.iceberg.actions">RewriteStrategy</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../org/apache/iceberg/actions/BinPackStrategy.html#selectFilesToRewrite-java.lang.Iterable-">selectFilesToRewrite</a></code> in class <code><a href="../../../../org/apache/iceberg/actions/BinPackStrategy.html" title="class in org.apache.iceberg.actions">BinPackStrategy</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>dataFiles</code> - iterable of FileScanTasks for files in a given partition</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>iterable containing only FileScanTasks to be rewritten</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="planFileGroups-java.lang.Iterable-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>planFileGroups</h4> |
| <pre>public java.lang.Iterable<java.util.List<<a href="../../../../org/apache/iceberg/FileScanTask.html" title="interface in org.apache.iceberg">FileScanTask</a>>> planFileGroups(java.lang.Iterable<<a href="../../../../org/apache/iceberg/FileScanTask.html" title="interface in org.apache.iceberg">FileScanTask</a>> dataFiles)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../org/apache/iceberg/actions/RewriteStrategy.html#planFileGroups-java.lang.Iterable-">RewriteStrategy</a></code></span></div> |
| <div class="block">Groups file scans into lists which will be processed in a single executable unit. Each group will end up being |
| committed as an independent set of changes. This creates the jobs which will eventually be run as by the underlying |
| Action.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../org/apache/iceberg/actions/RewriteStrategy.html#planFileGroups-java.lang.Iterable-">planFileGroups</a></code> in interface <code><a href="../../../../org/apache/iceberg/actions/RewriteStrategy.html" title="interface in org.apache.iceberg.actions">RewriteStrategy</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../org/apache/iceberg/actions/BinPackStrategy.html#planFileGroups-java.lang.Iterable-">planFileGroups</a></code> in class <code><a href="../../../../org/apache/iceberg/actions/BinPackStrategy.html" title="class in org.apache.iceberg.actions">BinPackStrategy</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>dataFiles</code> - iterable of FileScanTasks to be rewritten</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>iterable of lists of FileScanTasks which will be processed together</dd> |
| </dl> |
| </li> |
| </ul> |
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| <li class="blockList"> |
| <h4>validateOptions</h4> |
| <pre>protected void validateOptions()</pre> |
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