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| <div class="subTitle">org.apache.hadoop.hbase.regionserver.querymatcher</div> |
| <h2 title="Interface DeleteTracker" class="title">Interface DeleteTracker</h2> |
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| <dl> |
| <dt>All Superinterfaces:</dt> |
| <dd><a href="../../../../../../org/apache/hadoop/hbase/regionserver/ShipperListener.html" title="interface in org.apache.hadoop.hbase.regionserver">ShipperListener</a></dd> |
| </dl> |
| <dl> |
| <dt>All Known Implementing Classes:</dt> |
| <dd><a href="../../../../../../org/apache/hadoop/hbase/regionserver/querymatcher/NewVersionBehaviorTracker.html" title="class in org.apache.hadoop.hbase.regionserver.querymatcher">NewVersionBehaviorTracker</a>, <a href="../../../../../../org/apache/hadoop/hbase/regionserver/querymatcher/ScanDeleteTracker.html" title="class in org.apache.hadoop.hbase.regionserver.querymatcher">ScanDeleteTracker</a>, <a href="../../../../../../org/apache/hadoop/hbase/security/visibility/VisibilityNewVersionBehaivorTracker.html" title="class in org.apache.hadoop.hbase.security.visibility">VisibilityNewVersionBehaivorTracker</a>, <a href="../../../../../../org/apache/hadoop/hbase/security/visibility/VisibilityScanDeleteTracker.html" title="class in org.apache.hadoop.hbase.security.visibility">VisibilityScanDeleteTracker</a></dd> |
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| <pre>@InterfaceAudience.Private |
| public interface <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/querymatcher/DeleteTracker.html#line.37">DeleteTracker</a> |
| extends <a href="../../../../../../org/apache/hadoop/hbase/regionserver/ShipperListener.html" title="interface in org.apache.hadoop.hbase.regionserver">ShipperListener</a></pre> |
| <div class="block">This interface is used for the tracking and enforcement of Deletes during the course of a Get or |
| Scan operation. |
| <p> |
| This class is utilized through three methods: |
| <ul> |
| <li><a href="../../../../../../org/apache/hadoop/hbase/regionserver/querymatcher/DeleteTracker.html#add-org.apache.hadoop.hbase.Cell-"><code>add(org.apache.hadoop.hbase.Cell)</code></a> when encountering a Delete</li> |
| <li><a href="../../../../../../org/apache/hadoop/hbase/regionserver/querymatcher/DeleteTracker.html#isDeleted-org.apache.hadoop.hbase.Cell-"><code>isDeleted(org.apache.hadoop.hbase.Cell)</code></a> when checking if a Put Cell has been deleted</li> |
| <li><a href="../../../../../../org/apache/hadoop/hbase/regionserver/querymatcher/DeleteTracker.html#update--"><code>update()</code></a> when reaching the end of a StoreFile</li> |
| </ul></div> |
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| <th class="colFirst" scope="col">Modifier and Type</th> |
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| <tr class="altColor"> |
| <td class="colFirst"><code>static class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/querymatcher/DeleteTracker.DeleteResult.html" title="enum in org.apache.hadoop.hbase.regionserver.querymatcher">DeleteTracker.DeleteResult</a></span></code> |
| <div class="block">Returns codes for delete result.</div> |
| </td> |
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| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/querymatcher/DeleteTracker.html#add-org.apache.hadoop.hbase.Cell-">add</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> cell)</code> |
| <div class="block">Add the specified cell to the list of deletes to check against for this row operation.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/hadoop/hbase/CellComparator.html" title="interface in org.apache.hadoop.hbase">CellComparator</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/querymatcher/DeleteTracker.html#getCellComparator--">getCellComparator</a></span>()</code> |
| <div class="block">Return the comparator passed to this delete tracker</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/hadoop/hbase/regionserver/querymatcher/DeleteTracker.DeleteResult.html" title="enum in org.apache.hadoop.hbase.regionserver.querymatcher">DeleteTracker.DeleteResult</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/querymatcher/DeleteTracker.html#isDeleted-org.apache.hadoop.hbase.Cell-">isDeleted</a></span>(<a href="../../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> cell)</code> |
| <div class="block">Check if the specified cell buffer has been deleted by a previously seen delete.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/querymatcher/DeleteTracker.html#isEmpty--">isEmpty</a></span>()</code> </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/querymatcher/DeleteTracker.html#reset--">reset</a></span>()</code> |
| <div class="block">Called between rows.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/regionserver/querymatcher/DeleteTracker.html#update--">update</a></span>()</code> |
| <div class="block">Called at the end of every StoreFile.</div> |
| </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
| <li class="blockList"><a name="methods.inherited.from.class.org.apache.hadoop.hbase.regionserver.ShipperListener"> |
| <!-- --> |
| </a> |
| <h3>Methods inherited from interface org.apache.hadoop.hbase.regionserver.<a href="../../../../../../org/apache/hadoop/hbase/regionserver/ShipperListener.html" title="interface in org.apache.hadoop.hbase.regionserver">ShipperListener</a></h3> |
| <code><a href="../../../../../../org/apache/hadoop/hbase/regionserver/ShipperListener.html#beforeShipped--">beforeShipped</a></code></li> |
| </ul> |
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| <a name="add-org.apache.hadoop.hbase.Cell-"> |
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| <li class="blockList"> |
| <h4>add</h4> |
| <pre>void <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/querymatcher/DeleteTracker.html#line.45">add</a>(<a href="../../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> cell)</pre> |
| <div class="block">Add the specified cell to the list of deletes to check against for this row operation. |
| <p> |
| This is called when a Delete is encountered in a StoreFile.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>cell</code> - - the delete cell</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="isDeleted-org.apache.hadoop.hbase.Cell-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>isDeleted</h4> |
| <pre><a href="../../../../../../org/apache/hadoop/hbase/regionserver/querymatcher/DeleteTracker.DeleteResult.html" title="enum in org.apache.hadoop.hbase.regionserver.querymatcher">DeleteTracker.DeleteResult</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/querymatcher/DeleteTracker.html#line.52">isDeleted</a>(<a href="../../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> cell)</pre> |
| <div class="block">Check if the specified cell buffer has been deleted by a previously seen delete.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>cell</code> - - current cell to check if deleted by a previously seen delete</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>deleteResult The result tells whether the Cell is deleted and why</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="isEmpty--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>isEmpty</h4> |
| <pre>boolean <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/querymatcher/DeleteTracker.html#line.57">isEmpty</a>()</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>true if there are no current delete, false otherwise</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="update--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>update</h4> |
| <pre>void <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/querymatcher/DeleteTracker.html#line.65">update</a>()</pre> |
| <div class="block">Called at the end of every StoreFile. |
| <p> |
| Many optimized implementations of Trackers will require an update at when the end of each |
| StoreFile is reached.</div> |
| </li> |
| </ul> |
| <a name="reset--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
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| <h4>reset</h4> |
| <pre>void <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/querymatcher/DeleteTracker.html#line.72">reset</a>()</pre> |
| <div class="block">Called between rows. |
| <p> |
| This clears everything as if a new DeleteTracker was instantiated.</div> |
| </li> |
| </ul> |
| <a name="getCellComparator--"> |
| <!-- --> |
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| <h4>getCellComparator</h4> |
| <pre><a href="../../../../../../org/apache/hadoop/hbase/CellComparator.html" title="interface in org.apache.hadoop.hbase">CellComparator</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/regionserver/querymatcher/DeleteTracker.html#line.92">getCellComparator</a>()</pre> |
| <div class="block">Return the comparator passed to this delete tracker</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the cell comparator</dd> |
| </dl> |
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