http://git-wip-us.apache.org/repos/asf/hbase-site/blob/1d9053bc/devapidocs/org/apache/hadoop/hbase/coprocessor/example/WriteHeavyIncrementObserver.html ---------------------------------------------------------------------- diff --git a/devapidocs/org/apache/hadoop/hbase/coprocessor/example/WriteHeavyIncrementObserver.html b/devapidocs/org/apache/hadoop/hbase/coprocessor/example/WriteHeavyIncrementObserver.html new file mode 100644 index 0000000..45539e3 --- /dev/null +++ b/devapidocs/org/apache/hadoop/hbase/coprocessor/example/WriteHeavyIncrementObserver.html @@ -0,0 +1,725 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd";> +<!-- NewPage --> +<html lang="en"> +<head> +<!-- Generated by javadoc --> +<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> +<title>WriteHeavyIncrementObserver (Apache HBase 3.0.0-SNAPSHOT API)</title> +<link rel="stylesheet" type="text/css" href="../../../../../../stylesheet.css" title="Style"> +<script type="text/javascript" src="../../../../../../script.js"></script> +</head> +<body> +<script type="text/javascript"><!-- + try { + if (location.href.indexOf('is-external=true') == -1) { + parent.document.title="WriteHeavyIncrementObserver (Apache HBase 3.0.0-SNAPSHOT API)"; 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title="class or interface in java.lang">java.lang.Object</a></li> +<li> +<ul class="inheritance"> +<li>org.apache.hadoop.hbase.coprocessor.example.WriteHeavyIncrementObserver</li> +</ul> +</li> +</ul> +<div class="description"> +<ul class="blockList"> +<li class="blockList"> +<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> +</dl> +<hr> +<br> +<pre>public class <a href="../../../../../../src-html/org/apache/hadoop/hbase/coprocessor/example/WriteHeavyIncrementObserver.html#line.68">WriteHeavyIncrementObserver</a> +extends <a href="http://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">An example for implementing a counter that reads is much less than writes, i.e, write heavy. + <p> + We will convert increment to put, and do aggregating when get. And of course the return value of + increment is useless then. + <p> + Notice that this is only an example so we do not handle most corner cases, for example, you must + provide a qualifier when doing a get.</div> +</li> +</ul> +</div> +<div class="summary"> +<ul class="blockList"> +<li class="blockList"> +<!-- ======== NESTED CLASS SUMMARY ======== --> +<ul class="blockList"> +<li class="blockList"><a name="nested.class.summary"> +<!-- --> +</a> +<h3>Nested Class Summary</h3> +<ul class="blockList"> +<li class="blockList"><a name="nested.classes.inherited.from.class.org.apache.hadoop.hbase.Coprocessor"> +<!-- --> +</a> +<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> +</ul> +<ul class="blockList"> +<li class="blockList"><a name="nested.classes.inherited.from.class.org.apache.hadoop.hbase.coprocessor.RegionObserver"> +<!-- --> +</a> +<h3>Nested classes/interfaces inherited from interface org.apache.hadoop.hbase.coprocessor.<a href="../../../../../../org/apache/hadoop/hbase/coprocessor/RegionObserver.html" title="interface in org.apache.hadoop.hbase.coprocessor">RegionObserver</a></h3> +<code><a href="../../../../../../org/apache/hadoop/hbase/coprocessor/RegionObserver.MutationType.html" title="enum in org.apache.hadoop.hbase.coprocessor">RegionObserver.MutationType</a></code></li> +</ul> +</li> +</ul> +<!-- =========== FIELD SUMMARY =========== --> +<ul class="blockList"> +<li class="blockList"><a name="field.summary"> +<!-- --> +</a> +<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>private org.apache.commons.lang3.mutable.MutableLong[]</code></td> +<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/coprocessor/example/WriteHeavyIncrementObserver.html#lastTimestamps">lastTimestamps</a></span></code> </td> +</tr> +<tr class="rowColor"> +<td class="colFirst"><code>private int</code></td> +<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/coprocessor/example/WriteHeavyIncrementObserver.html#mask">mask</a></span></code> </td> +</tr> +</table> +<ul class="blockList"> +<li class="blockList"><a name="fields.inherited.from.class.org.apache.hadoop.hbase.Coprocessor"> +<!-- --> +</a> +<h3>Fields 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.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> +</ul> +</li> +</ul> +<!-- ======== CONSTRUCTOR SUMMARY ======== --> +<ul class="blockList"> +<li class="blockList"><a name="constructor.summary"> +<!-- --> +</a> +<h3>Constructor Summary</h3> +<table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Constructor Summary table, listing constructors, and an explanation"> +<caption><span>Constructors</span><span class="tabEnd"> </span></caption> +<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/hadoop/hbase/coprocessor/example/WriteHeavyIncrementObserver.html#WriteHeavyIncrementObserver--">WriteHeavyIncrementObserver</a></span>()</code> </td> +</tr> +</table> +</li> +</ul> +<!-- ========== METHOD SUMMARY =========== --> +<ul class="blockList"> +<li class="blockList"><a name="method.summary"> +<!-- --> +</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>private <a href="../../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a></code></td> +<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/coprocessor/example/WriteHeavyIncrementObserver.html#createCell-byte:A-byte:A-byte:A-long-long-">createCell</a></span>(byte[] row, + byte[] family, + byte[] qualifier, + long ts, + long value)</code> </td> +</tr> +<tr id="i1" class="rowColor"> +<td class="colFirst"><code><a href="http://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/coprocessor/example/WriteHeavyIncrementObserver.html#getRegionObserver--">getRegionObserver</a></span>()</code> </td> +</tr> +<tr id="i2" class="altColor"> +<td class="colFirst"><code>private long</code></td> +<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/coprocessor/example/WriteHeavyIncrementObserver.html#getUniqueTimestamp-byte:A-">getUniqueTimestamp</a></span>(byte[] row)</code> </td> +</tr> +<tr id="i3" class="rowColor"> +<td class="colFirst"><code><a href="../../../../../../org/apache/hadoop/hbase/regionserver/InternalScanner.html" title="interface in org.apache.hadoop.hbase.regionserver">InternalScanner</a></code></td> +<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/coprocessor/example/WriteHeavyIncrementObserver.html#preCompact-org.apache.hadoop.hbase.coprocessor.ObserverContext-org.apache.hadoop.hbase.regionserver.Store-org.apache.hadoop.hbase.regionserver.InternalScanner-org.apache.hadoop.hbase.regionserver.ScanType-org.apache.hadoop.hbase.regionserver.compactions.CompactionLifeCycleTracker-org.apache.hadoop.hbase.regionserver.compactions.CompactionRequest-">preCompact</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>> c, + <a href="../../../../../../org/apache/hadoop/hbase/regionserver/Store.html" title="interface in org.apache.hadoop.hbase.regionserver">Store</a> store, + <a href="../../../../../../org/apache/hadoop/hbase/regionserver/InternalScanner.html" title="interface in org.apache.hadoop.hbase.regionserver">InternalScanner</a> scanner, + <a href="../../../../../../org/apache/hadoop/hbase/regionserver/ScanType.html" title="enum in org.apache.hadoop.hbase.regionserver">ScanType</a> scanType, + <a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/CompactionLifeCycleTracker.html" title="interface in org.apache.hadoop.hbase.regionserver.compactions">CompactionLifeCycleTracker</a> tracker, + <a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/CompactionRequest.html" title="interface in org.apache.hadoop.hbase.regionserver.compactions">CompactionRequest</a> request)</code> +<div class="block">Called prior to writing the <a href="../../../../../../org/apache/hadoop/hbase/regionserver/StoreFile.html" title="interface in org.apache.hadoop.hbase.regionserver"><code>StoreFile</code></a>s selected for compaction into a new + <code>StoreFile</code>.</div> +</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/coprocessor/example/WriteHeavyIncrementObserver.html#preCompactScannerOpen-org.apache.hadoop.hbase.coprocessor.ObserverContext-org.apache.hadoop.hbase.regionserver.Store-org.apache.hadoop.hbase.regionserver.ScanType-org.apache.hadoop.hbase.regionserver.ScanOptions-org.apache.hadoop.hbase.regionserver.compactions.CompactionLifeCycleTracker-org.apache.hadoop.hbase.regionserver.compactions.CompactionRequest-">preCompactScannerOpen</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>> c, + <a href="../../../../../../org/apache/hadoop/hbase/regionserver/Store.html" title="interface in org.apache.hadoop.hbase.regionserver">Store</a> store, + <a href="../../../../../../org/apache/hadoop/hbase/regionserver/ScanType.html" title="enum in org.apache.hadoop.hbase.regionserver">ScanType</a> scanType, + <a href="../../../../../../org/apache/hadoop/hbase/regionserver/ScanOptions.html" title="interface in org.apache.hadoop.hbase.regionserver">ScanOptions</a> options, + <a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/CompactionLifeCycleTracker.html" title="interface in org.apache.hadoop.hbase.regionserver.compactions">CompactionLifeCycleTracker</a> tracker, + <a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/CompactionRequest.html" title="interface in org.apache.hadoop.hbase.regionserver.compactions">CompactionRequest</a> request)</code> +<div class="block">Called before we open store scanner for compaction.</div> +</td> +</tr> +<tr id="i5" class="rowColor"> +<td class="colFirst"><code><a href="../../../../../../org/apache/hadoop/hbase/regionserver/InternalScanner.html" title="interface in org.apache.hadoop.hbase.regionserver">InternalScanner</a></code></td> +<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/coprocessor/example/WriteHeavyIncrementObserver.html#preFlush-org.apache.hadoop.hbase.coprocessor.ObserverContext-org.apache.hadoop.hbase.regionserver.Store-org.apache.hadoop.hbase.regionserver.InternalScanner-org.apache.hadoop.hbase.regionserver.FlushLifeCycleTracker-">preFlush</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>> c, + <a href="../../../../../../org/apache/hadoop/hbase/regionserver/Store.html" title="interface in org.apache.hadoop.hbase.regionserver">Store</a> store, + <a href="../../../../../../org/apache/hadoop/hbase/regionserver/InternalScanner.html" title="interface in org.apache.hadoop.hbase.regionserver">InternalScanner</a> scanner, + <a href="../../../../../../org/apache/hadoop/hbase/regionserver/FlushLifeCycleTracker.html" title="interface in org.apache.hadoop.hbase.regionserver">FlushLifeCycleTracker</a> tracker)</code> +<div class="block">Called before a Store's memstore is flushed to disk.</div> +</td> +</tr> +<tr id="i6" class="altColor"> +<td class="colFirst"><code>void</code></td> +<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/coprocessor/example/WriteHeavyIncrementObserver.html#preFlushScannerOpen-org.apache.hadoop.hbase.coprocessor.ObserverContext-org.apache.hadoop.hbase.regionserver.Store-org.apache.hadoop.hbase.regionserver.ScanOptions-org.apache.hadoop.hbase.regionserver.FlushLifeCycleTracker-">preFlushScannerOpen</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>> c, + <a href="../../../../../../org/apache/hadoop/hbase/regionserver/Store.html" title="interface in org.apache.hadoop.hbase.regionserver">Store</a> store, + <a href="../../../../../../org/apache/hadoop/hbase/regionserver/ScanOptions.html" title="interface in org.apache.hadoop.hbase.regionserver">ScanOptions</a> options, + <a href="../../../../../../org/apache/hadoop/hbase/regionserver/FlushLifeCycleTracker.html" title="interface in org.apache.hadoop.hbase.regionserver">FlushLifeCycleTracker</a> tracker)</code> +<div class="block">Called before we open store scanner for flush.</div> +</td> +</tr> +<tr id="i7" class="rowColor"> +<td class="colFirst"><code>void</code></td> +<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/coprocessor/example/WriteHeavyIncrementObserver.html#preGetOp-org.apache.hadoop.hbase.coprocessor.ObserverContext-org.apache.hadoop.hbase.client.Get-java.util.List-">preGetOp</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>> c, + <a href="../../../../../../org/apache/hadoop/hbase/client/Get.html" title="class in org.apache.hadoop.hbase.client">Get</a> get, + <a href="http://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true"; title="class or interface in java.util">List</a><<a href="../../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>> result)</code> +<div class="block">Called before the client performs a Get</div> +</td> +</tr> +<tr id="i8" class="altColor"> +<td class="colFirst"><code><a href="../../../../../../org/apache/hadoop/hbase/client/Result.html" title="class in org.apache.hadoop.hbase.client">Result</a></code></td> +<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/coprocessor/example/WriteHeavyIncrementObserver.html#preIncrement-org.apache.hadoop.hbase.coprocessor.ObserverContext-org.apache.hadoop.hbase.client.Increment-">preIncrement</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>> c, + <a href="../../../../../../org/apache/hadoop/hbase/client/Increment.html" title="class in org.apache.hadoop.hbase.client">Increment</a> increment)</code> +<div class="block">Called before Increment.</div> +</td> +</tr> +<tr id="i9" class="rowColor"> +<td class="colFirst"><code>void</code></td> +<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hbase/coprocessor/example/WriteHeavyIncrementObserver.html#preStoreScannerOpen-org.apache.hadoop.hbase.coprocessor.ObserverContext-org.apache.hadoop.hbase.regionserver.Store-org.apache.hadoop.hbase.regionserver.ScanOptions-">preStoreScannerOpen</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>> ctx, + <a href="../../../../../../org/apache/hadoop/hbase/regionserver/Store.html" title="interface in org.apache.hadoop.hbase.regionserver">Store</a> store, + <a href="../../../../../../org/apache/hadoop/hbase/regionserver/ScanOptions.html" title="interface in org.apache.hadoop.hbase.regionserver">ScanOptions</a> options)</code> +<div 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store scanner for flush. You can use the <code>options</code> to change max + versions and TTL for the scanner being opened.</div> +<dl> +<dt><span class="overrideSpecifyLabel">Specified by:</span></dt> +<dd><code><a href="../../../../../../org/apache/hadoop/hbase/coprocessor/RegionObserver.html#preFlushScannerOpen-org.apache.hadoop.hbase.coprocessor.ObserverContext-org.apache.hadoop.hbase.regionserver.Store-org.apache.hadoop.hbase.regionserver.ScanOptions-org.apache.hadoop.hbase.regionserver.FlushLifeCycleTracker-">preFlushScannerOpen</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>c</code> - the environment provided by the region server</dd> +<dd><code>store</code> - the store where flush is being requested</dd> +<dd><code>options</code> - used to change max versions and TTL for the scanner being opened</dd> +<dt><span class="throwsLabel">Throws:</span></dt> +<dd><code><a href="http://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> +<a name="createCell-byte:A-byte:A-byte:A-long-long-"> +<!-- --> +</a> +<ul class="blockList"> +<li class="blockList"> +<h4>createCell</h4> +<pre>private <a href="../../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/coprocessor/example/WriteHeavyIncrementObserver.html#line.81">createCell</a>(byte[] row, + byte[] family, + byte[] qualifier, + long ts, + long value)</pre> +</li> +</ul> +<a name="wrap-byte:A-org.apache.hadoop.hbase.regionserver.InternalScanner-"> +<!-- --> +</a> +<ul class="blockList"> +<li class="blockList"> +<h4>wrap</h4> +<pre>private <a href="../../../../../../org/apache/hadoop/hbase/regionserver/InternalScanner.html" title="interface in org.apache.hadoop.hbase.regionserver">InternalScanner</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/coprocessor/example/WriteHeavyIncrementObserver.html#line.87">wrap</a>(byte[] family, + <a href="../../../../../../org/apache/hadoop/hbase/regionserver/InternalScanner.html" title="interface in org.apache.hadoop.hbase.regionserver">InternalScanner</a> scanner)</pre> +</li> +</ul> +<a name="preFlush-org.apache.hadoop.hbase.coprocessor.ObserverContext-org.apache.hadoop.hbase.regionserver.Store-org.apache.hadoop.hbase.regionserver.InternalScanner-org.apache.hadoop.hbase.regionserver.FlushLifeCycleTracker-"> +<!-- --> +</a> +<ul class="blockList"> +<li class="blockList"> +<h4>preFlush</h4> +<pre>public <a href="../../../../../../org/apache/hadoop/hbase/regionserver/InternalScanner.html" title="interface in org.apache.hadoop.hbase.regionserver">InternalScanner</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/coprocessor/example/WriteHeavyIncrementObserver.html#line.146">preFlush</a>(<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>> c, + <a href="../../../../../../org/apache/hadoop/hbase/regionserver/Store.html" title="interface in org.apache.hadoop.hbase.regionserver">Store</a> store, + <a href="../../../../../../org/apache/hadoop/hbase/regionserver/InternalScanner.html" title="interface in org.apache.hadoop.hbase.regionserver">InternalScanner</a> scanner, + <a href="../../../../../../org/apache/hadoop/hbase/regionserver/FlushLifeCycleTracker.html" title="interface in org.apache.hadoop.hbase.regionserver">FlushLifeCycleTracker</a> tracker) + throws <a href="http://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#preFlush-org.apache.hadoop.hbase.coprocessor.ObserverContext-org.apache.hadoop.hbase.regionserver.Store-org.apache.hadoop.hbase.regionserver.InternalScanner-org.apache.hadoop.hbase.regionserver.FlushLifeCycleTracker-">RegionObserver</a></code></span></div> +<div class="block">Called before a Store's memstore is flushed to disk.</div> +<dl> +<dt><span class="overrideSpecifyLabel">Specified by:</span></dt> +<dd><code><a href="../../../../../../org/apache/hadoop/hbase/coprocessor/RegionObserver.html#preFlush-org.apache.hadoop.hbase.coprocessor.ObserverContext-org.apache.hadoop.hbase.regionserver.Store-org.apache.hadoop.hbase.regionserver.InternalScanner-org.apache.hadoop.hbase.regionserver.FlushLifeCycleTracker-">preFlush</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>c</code> - the environment provided by the region server</dd> +<dd><code>store</code> - the store where flush is being requested</dd> +<dd><code>scanner</code> - the scanner over existing data used in the store file</dd> +<dd><code>tracker</code> - tracker used to track the life cycle of a flush</dd> +<dt><span class="returnLabel">Returns:</span></dt> +<dd>the scanner to use during compaction. Should not be <code>null</code> + unless the implementation is writing new store files on its own.</dd> +<dt><span class="throwsLabel">Throws:</span></dt> +<dd><code><a href="http://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> +<a name="preCompactScannerOpen-org.apache.hadoop.hbase.coprocessor.ObserverContext-org.apache.hadoop.hbase.regionserver.Store-org.apache.hadoop.hbase.regionserver.ScanType-org.apache.hadoop.hbase.regionserver.ScanOptions-org.apache.hadoop.hbase.regionserver.compactions.CompactionLifeCycleTracker-org.apache.hadoop.hbase.regionserver.compactions.CompactionRequest-"> +<!-- --> +</a> +<ul class="blockList"> +<li class="blockList"> +<h4>preCompactScannerOpen</h4> +<pre>public void <a href="../../../../../../src-html/org/apache/hadoop/hbase/coprocessor/example/WriteHeavyIncrementObserver.html#line.152">preCompactScannerOpen</a>(<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>> c, + <a href="../../../../../../org/apache/hadoop/hbase/regionserver/Store.html" title="interface in org.apache.hadoop.hbase.regionserver">Store</a> store, + <a href="../../../../../../org/apache/hadoop/hbase/regionserver/ScanType.html" title="enum in org.apache.hadoop.hbase.regionserver">ScanType</a> scanType, + <a href="../../../../../../org/apache/hadoop/hbase/regionserver/ScanOptions.html" title="interface in org.apache.hadoop.hbase.regionserver">ScanOptions</a> options, + <a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/CompactionLifeCycleTracker.html" title="interface in org.apache.hadoop.hbase.regionserver.compactions">CompactionLifeCycleTracker</a> tracker, + <a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/CompactionRequest.html" title="interface in org.apache.hadoop.hbase.regionserver.compactions">CompactionRequest</a> request) + throws <a href="http://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#preCompactScannerOpen-org.apache.hadoop.hbase.coprocessor.ObserverContext-org.apache.hadoop.hbase.regionserver.Store-org.apache.hadoop.hbase.regionserver.ScanType-org.apache.hadoop.hbase.regionserver.ScanOptions-org.apache.hadoop.hbase.regionserver.compactions.CompactionLifeCycleTracker-org.apache.hadoop.hbase.regionserver.compactions.CompactionRequest-">RegionObserver</a></code></span></div> +<div class="block">Called before we open store scanner for compaction. You can use the <code>options</code> to change max + versions and TTL for the scanner being opened.</div> +<dl> +<dt><span class="overrideSpecifyLabel">Specified by:</span></dt> +<dd><code><a href="../../../../../../org/apache/hadoop/hbase/coprocessor/RegionObserver.html#preCompactScannerOpen-org.apache.hadoop.hbase.coprocessor.ObserverContext-org.apache.hadoop.hbase.regionserver.Store-org.apache.hadoop.hbase.regionserver.ScanType-org.apache.hadoop.hbase.regionserver.ScanOptions-org.apache.hadoop.hbase.regionserver.compactions.CompactionLifeCycleTracker-org.apache.hadoop.hbase.regionserver.compactions.CompactionRequest-">preCompactScannerOpen</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>c</code> - the environment provided by the region server</dd> +<dd><code>store</code> - the store being compacted</dd> +<dd><code>scanType</code> - type of Scan</dd> +<dd><code>options</code> - used to change max versions and TTL for the scanner being opened</dd> +<dd><code>tracker</code> - tracker used to track the life cycle of a compaction</dd> +<dd><code>request</code> - the requested compaction</dd> +<dt><span class="throwsLabel">Throws:</span></dt> +<dd><code><a href="http://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> +<a name="preCompact-org.apache.hadoop.hbase.coprocessor.ObserverContext-org.apache.hadoop.hbase.regionserver.Store-org.apache.hadoop.hbase.regionserver.InternalScanner-org.apache.hadoop.hbase.regionserver.ScanType-org.apache.hadoop.hbase.regionserver.compactions.CompactionLifeCycleTracker-org.apache.hadoop.hbase.regionserver.compactions.CompactionRequest-"> +<!-- --> +</a> +<ul class="blockList"> +<li class="blockList"> +<h4>preCompact</h4> +<pre>public <a href="../../../../../../org/apache/hadoop/hbase/regionserver/InternalScanner.html" title="interface in org.apache.hadoop.hbase.regionserver">InternalScanner</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/coprocessor/example/WriteHeavyIncrementObserver.html#line.159">preCompact</a>(<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>> c, + <a href="../../../../../../org/apache/hadoop/hbase/regionserver/Store.html" title="interface in org.apache.hadoop.hbase.regionserver">Store</a> store, + <a href="../../../../../../org/apache/hadoop/hbase/regionserver/InternalScanner.html" title="interface in org.apache.hadoop.hbase.regionserver">InternalScanner</a> scanner, + <a href="../../../../../../org/apache/hadoop/hbase/regionserver/ScanType.html" title="enum in org.apache.hadoop.hbase.regionserver">ScanType</a> scanType, + <a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/CompactionLifeCycleTracker.html" title="interface in org.apache.hadoop.hbase.regionserver.compactions">CompactionLifeCycleTracker</a> tracker, + <a href="../../../../../../org/apache/hadoop/hbase/regionserver/compactions/CompactionRequest.html" title="interface in org.apache.hadoop.hbase.regionserver.compactions">CompactionRequest</a> request) + throws <a href="http://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#preCompact-org.apache.hadoop.hbase.coprocessor.ObserverContext-org.apache.hadoop.hbase.regionserver.Store-org.apache.hadoop.hbase.regionserver.InternalScanner-org.apache.hadoop.hbase.regionserver.ScanType-org.apache.hadoop.hbase.regionserver.compactions.CompactionLifeCycleTracker-org.apache.hadoop.hbase.regionserver.compactions.CompactionRequest-">RegionObserver</a></code></span></div> +<div class="block">Called prior to writing the <a href="../../../../../../org/apache/hadoop/hbase/regionserver/StoreFile.html" title="interface in org.apache.hadoop.hbase.regionserver"><code>StoreFile</code></a>s selected for compaction into a new + <code>StoreFile</code>. + <p> + To override or modify the compaction process, implementing classes can wrap the provided + <a href="../../../../../../org/apache/hadoop/hbase/regionserver/InternalScanner.html" title="interface in org.apache.hadoop.hbase.regionserver"><code>InternalScanner</code></a> with a custom implementation that is returned from this method. The + custom scanner can then inspect <a href="../../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase"><code>Cell</code></a>s from the wrapped scanner, + applying its own policy to what gets written.</div> +<dl> +<dt><span class="overrideSpecifyLabel">Specified by:</span></dt> +<dd><code><a href="../../../../../../org/apache/hadoop/hbase/coprocessor/RegionObserver.html#preCompact-org.apache.hadoop.hbase.coprocessor.ObserverContext-org.apache.hadoop.hbase.regionserver.Store-org.apache.hadoop.hbase.regionserver.InternalScanner-org.apache.hadoop.hbase.regionserver.ScanType-org.apache.hadoop.hbase.regionserver.compactions.CompactionLifeCycleTracker-org.apache.hadoop.hbase.regionserver.compactions.CompactionRequest-">preCompact</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>c</code> - the environment provided by the region server</dd> +<dd><code>store</code> - the store being compacted</dd> +<dd><code>scanner</code> - the scanner over existing data used in the store file rewriting</dd> +<dd><code>scanType</code> - type of Scan</dd> +<dd><code>tracker</code> - tracker used to track the life cycle of a compaction</dd> +<dd><code>request</code> - the requested compaction</dd> +<dt><span class="returnLabel">Returns:</span></dt> +<dd>the scanner to use during compaction. Should not be <code>null</code> unless the + implementation is writing new store files on its own.</dd> +<dt><span class="throwsLabel">Throws:</span></dt> +<dd><code><a href="http://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> +<a name="preGetOp-org.apache.hadoop.hbase.coprocessor.ObserverContext-org.apache.hadoop.hbase.client.Get-java.util.List-"> +<!-- --> +</a> +<ul class="blockList"> +<li class="blockList"> +<h4>preGetOp</h4> +<pre>public void <a href="../../../../../../src-html/org/apache/hadoop/hbase/coprocessor/example/WriteHeavyIncrementObserver.html#line.166">preGetOp</a>(<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>> c, + <a href="../../../../../../org/apache/hadoop/hbase/client/Get.html" title="class in org.apache.hadoop.hbase.client">Get</a> get, + <a href="http://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true"; title="class or interface in java.util">List</a><<a href="../../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>> result) + throws <a href="http://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#preGetOp-org.apache.hadoop.hbase.coprocessor.ObserverContext-org.apache.hadoop.hbase.client.Get-java.util.List-">RegionObserver</a></code></span></div> +<div class="block">Called before the client performs a Get + <p> + Call CoprocessorEnvironment#bypass to skip default actions + <p> + Call CoprocessorEnvironment#complete to skip any subsequent chained + coprocessors</div> +<dl> +<dt><span class="overrideSpecifyLabel">Specified by:</span></dt> +<dd><code><a href="../../../../../../org/apache/hadoop/hbase/coprocessor/RegionObserver.html#preGetOp-org.apache.hadoop.hbase.coprocessor.ObserverContext-org.apache.hadoop.hbase.client.Get-java.util.List-">preGetOp</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>c</code> - the environment provided by the region server</dd> +<dd><code>get</code> - the Get request</dd> +<dd><code>result</code> - The result to return to the client if default processing + is bypassed. Can be modified. Will not be used if default processing + is not bypassed.</dd> +<dt><span class="throwsLabel">Throws:</span></dt> +<dd><code><a href="http://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> +<a name="getUniqueTimestamp-byte:A-"> +<!-- --> +</a> +<ul class="blockList"> +<li class="blockList"> +<h4>getUniqueTimestamp</h4> +<pre>private long <a href="../../../../../../src-html/org/apache/hadoop/hbase/coprocessor/example/WriteHeavyIncrementObserver.html#line.211">getUniqueTimestamp</a>(byte[] row)</pre> +</li> +</ul> +<a name="preIncrement-org.apache.hadoop.hbase.coprocessor.ObserverContext-org.apache.hadoop.hbase.client.Increment-"> +<!-- --> +</a> +<ul class="blockList"> +<li class="blockList"> +<h4>preIncrement</h4> +<pre>public <a href="../../../../../../org/apache/hadoop/hbase/client/Result.html" title="class in org.apache.hadoop.hbase.client">Result</a> <a href="../../../../../../src-html/org/apache/hadoop/hbase/coprocessor/example/WriteHeavyIncrementObserver.html#line.227">preIncrement</a>(<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>> c, + <a href="../../../../../../org/apache/hadoop/hbase/client/Increment.html" title="class in org.apache.hadoop.hbase.client">Increment</a> increment) + throws <a href="http://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#preIncrement-org.apache.hadoop.hbase.coprocessor.ObserverContext-org.apache.hadoop.hbase.client.Increment-">RegionObserver</a></code></span></div> +<div class="block">Called before Increment. + <p> + Call CoprocessorEnvironment#bypass to skip default actions + <p> + Call CoprocessorEnvironment#complete to skip any subsequent chained + coprocessors + <p> + Note: Do not retain references to any Cells in 'increment' 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#preIncrement-org.apache.hadoop.hbase.coprocessor.ObserverContext-org.apache.hadoop.hbase.client.Increment-">preIncrement</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>c</code> - the environment provided by the region server</dd> +<dd><code>increment</code> - increment object</dd> +<dt><span class="returnLabel">Returns:</span></dt> +<dd>result to return to the client if bypassing default processing</dd> +<dt><span class="throwsLabel">Throws:</span></dt> +<dd><code><a href="http://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> +<a name="preStoreScannerOpen-org.apache.hadoop.hbase.coprocessor.ObserverContext-org.apache.hadoop.hbase.regionserver.Store-org.apache.hadoop.hbase.regionserver.ScanOptions-"> +<!-- --> +</a> +<ul class="blockListLast"> +<li class="blockList"> +<h4>preStoreScannerOpen</h4> +<pre>public void <a href="../../../../../../src-html/org/apache/hadoop/hbase/coprocessor/example/WriteHeavyIncrementObserver.html#line.248">preStoreScannerOpen</a>(<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>> ctx, + <a href="../../../../../../org/apache/hadoop/hbase/regionserver/Store.html" title="interface in org.apache.hadoop.hbase.regionserver">Store</a> store, + <a href="../../../../../../org/apache/hadoop/hbase/regionserver/ScanOptions.html" title="interface in org.apache.hadoop.hbase.regionserver">ScanOptions</a> options) + throws <a href="http://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#preStoreScannerOpen-org.apache.hadoop.hbase.coprocessor.ObserverContext-org.apache.hadoop.hbase.regionserver.Store-org.apache.hadoop.hbase.regionserver.ScanOptions-">RegionObserver</a></code></span></div> +<div class="block">Called before a store opens a new scanner. + <p> + This hook is called when a "user" scanner is opened. Use <code>preFlushScannerOpen</code> and + <code>preCompactScannerOpen</code> to inject flush/compaction. + <p> + Notice that, this method is used to change the inherent max versions and TTL for a Store. For + example, you can change the max versions option for a <a href="../../../../../../org/apache/hadoop/hbase/client/Scan.html" title="class in org.apache.hadoop.hbase.client"><code>Scan</code></a> object to 10 in + <code>preScannerOpen</code>, but if the max versions config on the Store is 1, then you still can + only read 1 version. You need also to inject here to change the max versions to 10 if you want + to get more versions.</div> +<dl> +<dt><span class="overrideSpecifyLabel">Specified by:</span></dt> +<dd><code><a href="../../../../../../org/apache/hadoop/hbase/coprocessor/RegionObserver.html#preStoreScannerOpen-org.apache.hadoop.hbase.coprocessor.ObserverContext-org.apache.hadoop.hbase.regionserver.Store-org.apache.hadoop.hbase.regionserver.ScanOptions-">preStoreScannerOpen</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>ctx</code> - the environment provided by the region server</dd> +<dd><code>store</code> - the store which we want to get scanner from</dd> +<dd><code>options</code> - used to change max versions and TTL for the scanner being opened</dd> +<dt><span class="throwsLabel">Throws:</span></dt> +<dd><code><a href="http://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> +<dt><span class="seeLabel">See Also:</span></dt> +<dd><a href="../../../../../../org/apache/hadoop/hbase/coprocessor/RegionObserver.html#preFlushScannerOpen-org.apache.hadoop.hbase.coprocessor.ObserverContext-org.apache.hadoop.hbase.regionserver.Store-org.apache.hadoop.hbase.regionserver.ScanOptions-org.apache.hadoop.hbase.regionserver.FlushLifeCycleTracker-"><code>RegionObserver.preFlushScannerOpen(ObserverContext, Store, ScanOptions, FlushLifeCycleTracker)</code></a>, +<a href="../../../../../../org/apache/hadoop/hbase/coprocessor/RegionObserver.html#preCompactScannerOpen-org.apache.hadoop.hbase.coprocessor.ObserverContext-org.apache.hadoop.hbase.regionserver.Store-org.apache.hadoop.hbase.regionserver.ScanType-org.apache.hadoop.hbase.regionserver.ScanOptions-org.apache.hadoop.hbase.regionserver.compactions.CompactionLifeCycleTracker-org.apache.hadoop.hbase.regionserver.compactions.CompactionRequest-"><code>RegionObserver.preCompactScannerOpen(ObserverContext, Store, ScanType, ScanOptions, + CompactionLifeCycleTracker, CompactionRequest)</code></a></dd> +</dl> +</li> +</ul> +</li> +</ul> +</li> +</ul> +</div> +</div> +<!-- ========= END OF CLASS DATA ========= --> +<!-- ======= START OF BOTTOM NAVBAR ====== --> +<div class="bottomNav"><a name="navbar.bottom"> +<!-- --> +</a> +<div class="skipNav"><a href="#skip.navbar.bottom" title="Skip navigation links">Skip navigation links</a></div> +<a name="navbar.bottom.firstrow"> +<!-- --> +</a> +<ul class="navList" title="Navigation"> +<li><a href="../../../../../../overview-summary.html">Overview</a></li> +<li><a href="package-summary.html">Package</a></li> +<li class="navBarCell1Rev">Class</li> +<li><a href="class-use/WriteHeavyIncrementObserver.html">Use</a></li> +<li><a href="package-tree.html">Tree</a></li> +<li><a href="../../../../../../deprecated-list.html">Deprecated</a></li> +<li><a href="../../../../../../index-all.html">Index</a></li> +<li><a href="../../../../../../help-doc.html">Help</a></li> +</ul> +</div> +<div class="subNav"> +<ul class="navList"> +<li><a href="../../../../../../org/apache/hadoop/hbase/coprocessor/example/RowCountEndpoint.html" title="class in org.apache.hadoop.hbase.coprocessor.example"><span class="typeNameLink">Prev Class</span></a></li> +<li><a href="../../../../../../org/apache/hadoop/hbase/coprocessor/example/ZooKeeperScanPolicyObserver.html" title="class in org.apache.hadoop.hbase.coprocessor.example"><span class="typeNameLink">Next Class</span></a></li> +</ul> +<ul class="navList"> +<li><a href="../../../../../../index.html?org/apache/hadoop/hbase/coprocessor/example/WriteHeavyIncrementObserver.html" target="_top">Frames</a></li> +<li><a href="WriteHeavyIncrementObserver.html" target="_top">No Frames</a></li> +</ul> +<ul class="navList" id="allclasses_navbar_bottom"> +<li><a href="../../../../../../allclasses-noframe.html">All Classes</a></li> +</ul> +<div> +<script type="text/javascript"><!-- + allClassesLink = document.getElementById("allclasses_navbar_bottom"); + if(window==top) { + allClassesLink.style.display = "block"; + } + else { + allClassesLink.style.display = "none"; + } + //--> +</script> +</div> +<div> +<ul class="subNavList"> +<li>Summary: </li> +<li>Nested | </li> +<li><a href="#field.summary">Field</a> | </li> +<li><a href="#constructor.summary">Constr</a> | </li> +<li><a href="#method.summary">Method</a></li> +</ul> +<ul class="subNavList"> +<li>Detail: </li> +<li><a href="#field.detail">Field</a> | </li> +<li><a href="#constructor.detail">Constr</a> | </li> +<li><a href="#method.detail">Method</a></li> +</ul> +</div> +<a name="skip.navbar.bottom"> +<!-- --> +</a></div> +<!-- ======== END OF BOTTOM NAVBAR ======= --> +<p class="legalCopy"><small>Copyright © 2007–2017 <a href="https://www.apache.org/";>The Apache Software Foundation</a>. 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