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| <div class="subTitle">org.apache.iceberg</div> |
| <h2 title="Interface DeletedDataFileScanTask" class="title">Interface DeletedDataFileScanTask</h2> |
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| <dt>All Superinterfaces:</dt> |
| <dd><a href="../../../org/apache/iceberg/ChangelogScanTask.html" title="interface in org.apache.iceberg">ChangelogScanTask</a>, <a href="../../../org/apache/iceberg/ContentScanTask.html" title="interface in org.apache.iceberg">ContentScanTask</a><<a href="../../../org/apache/iceberg/DataFile.html" title="interface in org.apache.iceberg">DataFile</a>>, <a href="../../../org/apache/iceberg/PartitionScanTask.html" title="interface in org.apache.iceberg">PartitionScanTask</a>, <a href="../../../org/apache/iceberg/ScanTask.html" title="interface in org.apache.iceberg">ScanTask</a>, java.io.Serializable</dd> |
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| <pre>public interface <span class="typeNameLabel">DeletedDataFileScanTask</span> |
| extends <a href="../../../org/apache/iceberg/ChangelogScanTask.html" title="interface in org.apache.iceberg">ChangelogScanTask</a>, <a href="../../../org/apache/iceberg/ContentScanTask.html" title="interface in org.apache.iceberg">ContentScanTask</a><<a href="../../../org/apache/iceberg/DataFile.html" title="interface in org.apache.iceberg">DataFile</a>></pre> |
| <div class="block">A scan task for deletes generated by removing a data file from the table. |
| |
| <p>Note that all historical delete files added earlier must be applied while reading the data |
| file. This is required to output only those data records that were live when the data file was |
| removed. |
| |
| <p>Suppose snapshot S1 contains data files F1, F2, F3. Then snapshot S2 adds a position delete |
| file, D1, that deletes records from F2 and snapshot S3 removes F2 entirely. A scan for changes |
| generated by S3 should include the following task: |
| |
| <ul> |
| <li>DeletedDataFileScanTask(file=F2, existing-deletes=[D1], snapshot=S3) |
| </ul> |
| |
| <p>Readers consuming these tasks should produce deleted records with metadata like change ordinal |
| and commit snapshot ID.</div> |
| </li> |
| </ul> |
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| <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.util.List<<a href="../../../org/apache/iceberg/DeleteFile.html" title="interface in org.apache.iceberg">DeleteFile</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/iceberg/DeletedDataFileScanTask.html#existingDeletes--">existingDeletes</a></span>()</code> |
| <div class="block">A list of previously added <a href="../../../org/apache/iceberg/DeleteFile.html" title="interface in org.apache.iceberg"><code>delete files</code></a> to apply when reading the data file |
| in this task.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>default int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/iceberg/DeletedDataFileScanTask.html#filesCount--">filesCount</a></span>()</code> |
| <div class="block">The number of files that will be opened by this scan task.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>default <a href="../../../org/apache/iceberg/ChangelogOperation.html" title="enum in org.apache.iceberg">ChangelogOperation</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/iceberg/DeletedDataFileScanTask.html#operation--">operation</a></span>()</code> |
| <div class="block">Returns the type of changes produced by this task (i.e.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>default long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/iceberg/DeletedDataFileScanTask.html#sizeBytes--">sizeBytes</a></span>()</code> |
| <div class="block">The number of bytes that should be read by this scan task.</div> |
| </td> |
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| <h3>Methods inherited from interface org.apache.iceberg.<a href="../../../org/apache/iceberg/ChangelogScanTask.html" title="interface in org.apache.iceberg">ChangelogScanTask</a></h3> |
| <code><a href="../../../org/apache/iceberg/ChangelogScanTask.html#changeOrdinal--">changeOrdinal</a>, <a href="../../../org/apache/iceberg/ChangelogScanTask.html#commitSnapshotId--">commitSnapshotId</a></code></li> |
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| <h3>Methods inherited from interface org.apache.iceberg.<a href="../../../org/apache/iceberg/ContentScanTask.html" title="interface in org.apache.iceberg">ContentScanTask</a></h3> |
| <code><a href="../../../org/apache/iceberg/ContentScanTask.html#estimatedRowsCount--">estimatedRowsCount</a>, <a href="../../../org/apache/iceberg/ContentScanTask.html#file--">file</a>, <a href="../../../org/apache/iceberg/ContentScanTask.html#length--">length</a>, <a href="../../../org/apache/iceberg/ContentScanTask.html#partition--">partition</a>, <a href="../../../org/apache/iceberg/ContentScanTask.html#residual--">residual</a>, <a href="../../../org/apache/iceberg/ContentScanTask.html#start--">start</a></code></li> |
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| <h3>Methods inherited from interface org.apache.iceberg.<a href="../../../org/apache/iceberg/PartitionScanTask.html" title="interface in org.apache.iceberg">PartitionScanTask</a></h3> |
| <code><a href="../../../org/apache/iceberg/PartitionScanTask.html#spec--">spec</a></code></li> |
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| <h3>Methods inherited from interface org.apache.iceberg.<a href="../../../org/apache/iceberg/ScanTask.html" title="interface in org.apache.iceberg">ScanTask</a></h3> |
| <code><a href="../../../org/apache/iceberg/ScanTask.html#asCombinedScanTask--">asCombinedScanTask</a>, <a href="../../../org/apache/iceberg/ScanTask.html#asDataTask--">asDataTask</a>, <a href="../../../org/apache/iceberg/ScanTask.html#asFileScanTask--">asFileScanTask</a>, <a href="../../../org/apache/iceberg/ScanTask.html#isDataTask--">isDataTask</a>, <a href="../../../org/apache/iceberg/ScanTask.html#isFileScanTask--">isFileScanTask</a></code></li> |
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| <h4>existingDeletes</h4> |
| <pre>java.util.List<<a href="../../../org/apache/iceberg/DeleteFile.html" title="interface in org.apache.iceberg">DeleteFile</a>> existingDeletes()</pre> |
| <div class="block">A list of previously added <a href="../../../org/apache/iceberg/DeleteFile.html" title="interface in org.apache.iceberg"><code>delete files</code></a> to apply when reading the data file |
| in this task.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a list of delete files to apply</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="operation--"> |
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| </a> |
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| <h4>operation</h4> |
| <pre>default <a href="../../../org/apache/iceberg/ChangelogOperation.html" title="enum in org.apache.iceberg">ChangelogOperation</a> operation()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../org/apache/iceberg/ChangelogScanTask.html#operation--">ChangelogScanTask</a></code></span></div> |
| <div class="block">Returns the type of changes produced by this task (i.e. insert/delete).</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../org/apache/iceberg/ChangelogScanTask.html#operation--">operation</a></code> in interface <code><a href="../../../org/apache/iceberg/ChangelogScanTask.html" title="interface in org.apache.iceberg">ChangelogScanTask</a></code></dd> |
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| <a name="sizeBytes--"> |
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| <h4>sizeBytes</h4> |
| <pre>default long sizeBytes()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../org/apache/iceberg/ScanTask.html#sizeBytes--">ScanTask</a></code></span></div> |
| <div class="block">The number of bytes that should be read by this scan task.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../org/apache/iceberg/ContentScanTask.html#sizeBytes--">sizeBytes</a></code> in interface <code><a href="../../../org/apache/iceberg/ContentScanTask.html" title="interface in org.apache.iceberg">ContentScanTask</a><<a href="../../../org/apache/iceberg/DataFile.html" title="interface in org.apache.iceberg">DataFile</a>></code></dd> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../org/apache/iceberg/ScanTask.html#sizeBytes--">sizeBytes</a></code> in interface <code><a href="../../../org/apache/iceberg/ScanTask.html" title="interface in org.apache.iceberg">ScanTask</a></code></dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the total number of bytes to read</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="filesCount--"> |
| <!-- --> |
| </a> |
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| <h4>filesCount</h4> |
| <pre>default int filesCount()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../org/apache/iceberg/ScanTask.html#filesCount--">ScanTask</a></code></span></div> |
| <div class="block">The number of files that will be opened by this scan task.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../org/apache/iceberg/ScanTask.html#filesCount--">filesCount</a></code> in interface <code><a href="../../../org/apache/iceberg/ScanTask.html" title="interface in org.apache.iceberg">ScanTask</a></code></dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the number of files to open</dd> |
| </dl> |
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