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| <h2 title="Class ConstraintProcessor" class="title">Class ConstraintProcessor</h2> |
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| <dl> |
| <dt>All Implemented Interfaces:</dt> |
| <dd><a href="../../../../../org/apache/hadoop/hbase/Coprocessor.html" title="interface in org.apache.hadoop.hbase">Coprocessor</a>, <a href="../../../../../org/apache/hadoop/hbase/coprocessor/RegionCoprocessor.html" title="interface in org.apache.hadoop.hbase.coprocessor">RegionCoprocessor</a>, <a href="../../../../../org/apache/hadoop/hbase/coprocessor/RegionObserver.html" title="interface in org.apache.hadoop.hbase.coprocessor">RegionObserver</a></dd> |
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| <br> |
| <pre>@InterfaceAudience.Private |
| public class <a href="../../../../../src-html/org/apache/hadoop/hbase/constraint/ConstraintProcessor.html#line.47">ConstraintProcessor</a> |
| extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> |
| implements <a href="../../../../../org/apache/hadoop/hbase/coprocessor/RegionCoprocessor.html" title="interface in org.apache.hadoop.hbase.coprocessor">RegionCoprocessor</a>, <a href="../../../../../org/apache/hadoop/hbase/coprocessor/RegionObserver.html" title="interface in org.apache.hadoop.hbase.coprocessor">RegionObserver</a></pre> |
| <div class="block">Processes multiple <a href="../../../../../org/apache/hadoop/hbase/constraint/Constraint.html" title="interface in org.apache.hadoop.hbase.constraint"><code>Constraints</code></a> on a given table. |
| <p> |
| This is an ease of use mechanism - all the functionality here could be |
| implemented on any given system by a coprocessor.</div> |
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| </ul> |
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| <h3>Nested classes/interfaces inherited from interface org.apache.hadoop.hbase.<a href="../../../../../org/apache/hadoop/hbase/Coprocessor.html" title="interface in org.apache.hadoop.hbase">Coprocessor</a></h3> |
| <code><a href="../../../../../org/apache/hadoop/hbase/Coprocessor.State.html" title="enum in org.apache.hadoop.hbase">Coprocessor.State</a></code></li> |
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| <td class="colFirst"><code>private static org.slf4j.Logger</code></td> |
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| <code><a href="../../../../../org/apache/hadoop/hbase/Coprocessor.html#PRIORITY_HIGHEST">PRIORITY_HIGHEST</a>, <a href="../../../../../org/apache/hadoop/hbase/Coprocessor.html#PRIORITY_LOWEST">PRIORITY_LOWEST</a>, <a href="../../../../../org/apache/hadoop/hbase/Coprocessor.html#PRIORITY_SYSTEM">PRIORITY_SYSTEM</a>, <a href="../../../../../org/apache/hadoop/hbase/Coprocessor.html#PRIORITY_USER">PRIORITY_USER</a>, <a href="../../../../../org/apache/hadoop/hbase/Coprocessor.html#VERSION">VERSION</a></code></li> |
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| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/constraint/ConstraintProcessor.html#ConstraintProcessor--">ConstraintProcessor</a></span>()</code> |
| <div class="block">Create the constraint processor.</div> |
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| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Method and Description</th> |
| </tr> |
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| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Optional.html?is-external=true" title="class or interface in java.util">Optional</a><<a href="../../../../../org/apache/hadoop/hbase/coprocessor/RegionObserver.html" title="interface in org.apache.hadoop.hbase.coprocessor">RegionObserver</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/constraint/ConstraintProcessor.html#getRegionObserver--">getRegionObserver</a></span>()</code> </td> |
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| <td class="colFirst"><code>boolean</code></td> |
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| <a href="../../../../../org/apache/hadoop/hbase/regionserver/InternalScanner.html" title="interface in org.apache.hadoop.hbase.regionserver">InternalScanner</a> s, |
| <a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> curRowCell, |
| boolean hasMore)</code> |
| <div class="block">This will be called by the scan flow when the current scanned row is being filtered out by the |
| filter.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/constraint/ConstraintProcessor.html#prePut-org.apache.hadoop.hbase.coprocessor.ObserverContext-org.apache.hadoop.hbase.client.Put-org.apache.hadoop.hbase.wal.WALEdit-org.apache.hadoop.hbase.client.Durability-">prePut</a></span>(<a href="../../../../../org/apache/hadoop/hbase/coprocessor/ObserverContext.html" title="interface in org.apache.hadoop.hbase.coprocessor">ObserverContext</a><<a href="../../../../../org/apache/hadoop/hbase/coprocessor/RegionCoprocessorEnvironment.html" title="interface in org.apache.hadoop.hbase.coprocessor">RegionCoprocessorEnvironment</a>> e, |
| <a href="../../../../../org/apache/hadoop/hbase/client/Put.html" title="class in org.apache.hadoop.hbase.client">Put</a> put, |
| <a href="../../../../../org/apache/hadoop/hbase/wal/WALEdit.html" title="class in org.apache.hadoop.hbase.wal">WALEdit</a> edit, |
| <a href="../../../../../org/apache/hadoop/hbase/client/Durability.html" title="enum in org.apache.hadoop.hbase.client">Durability</a> durability)</code> |
| <div class="block">Called before the client stores a value.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/constraint/ConstraintProcessor.html#start-org.apache.hadoop.hbase.CoprocessorEnvironment-">start</a></span>(<a href="../../../../../org/apache/hadoop/hbase/CoprocessorEnvironment.html" title="interface in org.apache.hadoop.hbase">CoprocessorEnvironment</a> environment)</code> |
| <div class="block">Called by the <a href="../../../../../org/apache/hadoop/hbase/CoprocessorEnvironment.html" title="interface in org.apache.hadoop.hbase"><code>CoprocessorEnvironment</code></a> during it's own startup to initialize the |
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| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../org/apache/hadoop/hbase/coprocessor/RegionObserver.html#prePut-org.apache.hadoop.hbase.coprocessor.ObserverContext-org.apache.hadoop.hbase.client.Put-org.apache.hadoop.hbase.wal.WALEdit-org.apache.hadoop.hbase.client.Durability-">RegionObserver</a></code></span></div> |
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| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../org/apache/hadoop/hbase/coprocessor/RegionObserver.html#postScannerFilterRow-org.apache.hadoop.hbase.coprocessor.ObserverContext-org.apache.hadoop.hbase.regionserver.InternalScanner-org.apache.hadoop.hbase.Cell-boolean-">RegionObserver</a></code></span></div> |
| <div class="block">This will be called by the scan flow when the current scanned row is being filtered out by the |
| filter. The filter may be filtering out the row via any of the below scenarios |
| <ol> |
| <li> |
| <code>boolean filterRowKey(byte [] buffer, int offset, int length)</code> returning true</li> |
| <li> |
| <code>boolean filterRow()</code> returning true</li> |
| <li> |
| <code>default void filterRow(List<KeyValue> kvs)</code> removing all the kvs from |
| the passed List</li> |
| </ol> |
| <p> |
| Note: Do not retain references to any Cells returned by scanner, beyond the life of this |
| invocation. If need a Cell reference for later use, copy the cell and use that.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/hadoop/hbase/coprocessor/RegionObserver.html#postScannerFilterRow-org.apache.hadoop.hbase.coprocessor.ObserverContext-org.apache.hadoop.hbase.regionserver.InternalScanner-org.apache.hadoop.hbase.Cell-boolean-">postScannerFilterRow</a></code> in interface <code><a href="../../../../../org/apache/hadoop/hbase/coprocessor/RegionObserver.html" title="interface in org.apache.hadoop.hbase.coprocessor">RegionObserver</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>e</code> - the environment provided by the region server</dd> |
| <dd><code>s</code> - the scanner</dd> |
| <dd><code>curRowCell</code> - The cell in the current row which got filtered out</dd> |
| <dd><code>hasMore</code> - the 'has more' indication</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>whether more rows are available for the scanner or not</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
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