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title="class or interface in java.lang">java.lang.Object</a></li> +<li> +<ul class="inheritance"> +<li><a href="../../../../../org/apache/hadoop/hbase/regionserver/Segment.html" title="class in org.apache.hadoop.hbase.regionserver">org.apache.hadoop.hbase.regionserver.Segment</a></li> +<li> +<ul class="inheritance"> +<li>org.apache.hadoop.hbase.regionserver.MutableSegment</li> +</ul> +</li> +</ul> +</li> +</ul> +<div class="description"> +<ul class="blockList"> +<li class="blockList"> +<dl> +<dt>Direct Known Subclasses:</dt> +<dd><a href="../../../../../org/apache/hadoop/hbase/regionserver/MutableCellSetSegment.html" title="class in org.apache.hadoop.hbase.regionserver">MutableCellSetSegment</a></dd> +</dl> +<hr> +<br> +<pre><a href="../../../../../org/apache/hadoop/hbase/classification/InterfaceAudience.Private.html" title="annotation in org.apache.hadoop.hbase.classification">@InterfaceAudience.Private</a> +public abstract class <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/MutableSegment.html#line.31">MutableSegment</a> +extends <a href="../../../../../org/apache/hadoop/hbase/regionserver/Segment.html" title="class in org.apache.hadoop.hbase.regionserver">Segment</a></pre> +<div class="block">An abstraction of a mutable segment in memstore, specifically the active segment.</div> +</li> +</ul> +</div> +<div class="summary"> +<ul class="blockList"> +<li class="blockList"> +<!-- =========== FIELD SUMMARY =========== --> +<ul class="blockList"> +<li class="blockList"><a name="field_summary"> +<!-- --> +</a> +<h3>Field Summary</h3> +<ul class="blockList"> +<li class="blockList"><a name="fields_inherited_from_class_org.apache.hadoop.hbase.regionserver.Segment"> +<!-- --> +</a> +<h3>Fields inherited from class org.apache.hadoop.hbase.regionserver.<a href="../../../../../org/apache/hadoop/hbase/regionserver/Segment.html" title="class in org.apache.hadoop.hbase.regionserver">Segment</a></h3> +<code><a href="../../../../../org/apache/hadoop/hbase/regionserver/Segment.html#tagsPresent">tagsPresent</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="overviewSummary" 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="colFirst" scope="col">Modifier</th> +<th class="colLast" scope="col">Constructor and Description</th> +</tr> +<tr class="altColor"> +<td class="colFirst"><code>protected </code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/MutableSegment.html#MutableSegment(org.apache.hadoop.hbase.regionserver.MemStoreLAB,%20long)">MutableSegment</a></strong>(<a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreLAB.html" title="interface in org.apache.hadoop.hbase.regionserver">MemStoreLAB</a> memStoreLAB, + long size)</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="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation"> +<caption><span>Methods</span><span class="tabEnd"> </span></caption> +<tr> +<th class="colFirst" scope="col">Modifier and Type</th> +<th class="colLast" scope="col">Method and Description</th> +</tr> +<tr class="altColor"> +<td class="colFirst"><code>(package private) abstract <a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a></code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/MutableSegment.html#first()">first</a></strong>()</code> +<div class="block">Returns the first cell in the segment</div> +</td> +</tr> +<tr class="rowColor"> +<td class="colFirst"><code>abstract <a href="../../../../../org/apache/hadoop/hbase/CellComparator.html" title="class in org.apache.hadoop.hbase">CellComparator</a></code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/MutableSegment.html#getComparator()">getComparator</a></strong>()</code> +<div class="block">Returns the Cell comparator used by this segment</div> +</td> +</tr> +<tr class="altColor"> +<td class="colFirst"><code>abstract <a href="http://docs.oracle.com/javase/7/docs/api/java/util/SortedSet.html?is-external=true"; 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</li> +<li><a href="#method_detail">Method</a></li> +</ul> +</div> +<a name="skip-navbar_top"> +<!-- --> +</a></div> +<!-- ========= END OF TOP NAVBAR ========= --> +<!-- ======== START OF CLASS DATA ======== --> +<div class="header"> +<div class="subTitle">org.apache.hadoop.hbase.regionserver</div> +<h2 title="Class Segment" class="title">Class Segment</h2> +</div> +<div class="contentContainer"> +<ul class="inheritance"> +<li><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true"; title="class or interface in java.lang">java.lang.Object</a></li> +<li> +<ul class="inheritance"> +<li>org.apache.hadoop.hbase.regionserver.Segment</li> +</ul> +</li> +</ul> +<div class="description"> +<ul class="blockList"> +<li class="blockList"> +<dl> +<dt>Direct Known Subclasses:</dt> +<dd><a href="../../../../../org/apache/hadoop/hbase/regionserver/ImmutableSegment.html" title="class in org.apache.hadoop.hbase.regionserver">ImmutableSegment</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/MutableSegment.html" title="class in org.apache.hadoop.hbase.regionserver">MutableSegment</a></dd> +</dl> +<hr> +<br> +<pre><a href="../../../../../org/apache/hadoop/hbase/classification/InterfaceAudience.Private.html" title="annotation in org.apache.hadoop.hbase.classification">@InterfaceAudience.Private</a> +public abstract class <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/Segment.html#line.39">Segment</a> +extends <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true"; title="class or interface in java.lang">Object</a></pre> +<div class="block">This is an abstraction of a segment maintained in a memstore, e.g., the active + cell set or its snapshot. + + This abstraction facilitates the management of the compaction pipeline and the shifts of these + segments from active set to snapshot set in the default implementation.</div> +</li> +</ul> +</div> +<div class="summary"> +<ul class="blockList"> +<li class="blockList"> +<!-- =========== FIELD SUMMARY =========== --> +<ul class="blockList"> +<li class="blockList"><a name="field_summary"> +<!-- --> +</a> +<h3>Field Summary</h3> +<table class="overviewSummary" 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 <a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreLAB.html" title="interface in org.apache.hadoop.hbase.regionserver">MemStoreLAB</a></code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/Segment.html#memStoreLAB">memStoreLAB</a></strong></code> </td> +</tr> +<tr class="rowColor"> +<td class="colFirst"><code>private <a href="http://docs.oracle.com/javase/7/docs/api/java/util/concurrent/atomic/AtomicLong.html?is-external=true"; title="class or interface in java.util.concurrent.atomic">AtomicLong</a></code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/Segment.html#size">size</a></strong></code> </td> +</tr> +<tr class="altColor"> +<td class="colFirst"><code>protected boolean</code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/Segment.html#tagsPresent">tagsPresent</a></strong></code> </td> +</tr> +<tr class="rowColor"> +<td class="colFirst"><code>private <a href="../../../../../org/apache/hadoop/hbase/regionserver/TimeRangeTracker.html" title="class in org.apache.hadoop.hbase.regionserver">TimeRangeTracker</a></code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/Segment.html#timeRangeTracker">timeRangeTracker</a></strong></code> </td> +</tr> +</table> +</li> +</ul> +<!-- ======== CONSTRUCTOR SUMMARY ======== --> +<ul class="blockList"> +<li class="blockList"><a name="constructor_summary"> +<!-- --> +</a> +<h3>Constructor Summary</h3> +<table class="overviewSummary" 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="colFirst" scope="col">Modifier</th> +<th class="colLast" scope="col">Constructor and Description</th> +</tr> +<tr class="altColor"> +<td class="colFirst"><code>protected </code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/Segment.html#Segment(org.apache.hadoop.hbase.regionserver.MemStoreLAB,%20long)">Segment</a></strong>(<a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreLAB.html" title="interface in org.apache.hadoop.hbase.regionserver">MemStoreLAB</a> memStoreLAB, + long size)</code> </td> +</tr> +<tr class="rowColor"> +<td class="colFirst"><code>protected </code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/Segment.html#Segment(org.apache.hadoop.hbase.regionserver.Segment)">Segment</a></strong>(<a href="../../../../../org/apache/hadoop/hbase/regionserver/Segment.html" title="class in org.apache.hadoop.hbase.regionserver">Segment</a> segment)</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="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation"> +<caption><span>Methods</span><span class="tabEnd"> </span></caption> +<tr> +<th class="colFirst" scope="col">Modifier and Type</th> +<th class="colLast" scope="col">Method and Description</th> +</tr> +<tr class="altColor"> +<td class="colFirst"><code>abstract long</code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/Segment.html#add(org.apache.hadoop.hbase.Cell)">add</a></strong>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> cell)</code> +<div class="block">Adds the given cell into the segment</div> +</td> +</tr> +<tr class="rowColor"> +<td class="colFirst"><code>void</code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/Segment.html#close()">close</a></strong>()</code> +<div class="block">Closing a segment before it is being discarded</div> +</td> +</tr> +<tr class="altColor"> +<td class="colFirst"><code>void</code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/Segment.html#decScannerCount()">decScannerCount</a></strong>()</code> </td> +</tr> +<tr class="rowColor"> +<td class="colFirst"><code>abstract void</code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/Segment.html#dump(org.apache.commons.logging.Log)">dump</a></strong>(org.apache.commons.logging.Log log)</code> +<div class="block">Dumps all cells of the segment into the given log</div> +</td> +</tr> +<tr class="altColor"> +<td class="colFirst"><code>abstract int</code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/Segment.html#getCellsCount()">getCellsCount</a></strong>()</code> +<div class="block">Returns number of cells in segment</div> +</td> +</tr> +<tr class="rowColor"> +<td class="colFirst"><code>abstract <a href="../../../../../org/apache/hadoop/hbase/regionserver/CellSet.html" title="class in org.apache.hadoop.hbase.regionserver">CellSet</a></code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/Segment.html#getCellSet()">getCellSet</a></strong>()</code> +<div class="block">Returns a set of all cells in the segment</div> +</td> +</tr> +<tr class="altColor"> +<td class="colFirst"><code>abstract <a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a></code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/Segment.html#getFirstAfter(org.apache.hadoop.hbase.Cell)">getFirstAfter</a></strong>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> cell)</code> +<div class="block">Returns the first cell in the segment that has equal or greater key than the given cell</div> +</td> +</tr> +<tr class="rowColor"> +<td class="colFirst"><code>private <a 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+<div class="block">Creates the scanner that is able to scan the concrete segment</div> +</td> +</tr> +<tr class="altColor"> +<td class="colFirst"><code>long</code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/Segment.html#getSize()">getSize</a></strong>()</code> +<div class="block">Returns the heap size of the segment</div> +</td> +</tr> +<tr class="rowColor"> +<td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/regionserver/TimeRangeTracker.html" title="class in org.apache.hadoop.hbase.regionserver">TimeRangeTracker</a></code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/Segment.html#getTimeRangeTracker()">getTimeRangeTracker</a></strong>()</code> </td> +</tr> +<tr class="altColor"> +<td class="colFirst"><code>void</code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/Segment.html#incScannerCount()">incScannerCount</a></strong>()</code> </td> +</tr> +<tr class="rowColor"> +<td class="colFirst"><code>void</code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/Segment.html#incSize(long)">incSize</a></strong>(long delta)</code> +<div class="block">Increases the heap size counter of the segment by the given delta</div> +</td> +</tr> +<tr class="altColor"> +<td class="colFirst"><code>abstract boolean</code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/Segment.html#isEmpty()">isEmpty</a></strong>()</code> +<div class="block">Returns whether the segment has any cells</div> +</td> +</tr> +<tr class="rowColor"> +<td class="colFirst"><code>boolean</code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/Segment.html#isTagsPresent()">isTagsPresent</a></strong>()</code> </td> +</tr> +<tr class="altColor"> +<td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a></code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/Segment.html#maybeCloneWithAllocator(org.apache.hadoop.hbase.Cell)">maybeCloneWithAllocator</a></strong>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> cell)</code> +<div class="block">If the segment has a memory allocator the cell is being cloned to this space, and returned; + otherwise the given cell is returned</div> +</td> +</tr> +<tr class="rowColor"> +<td class="colFirst"><code>abstract long</code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/Segment.html#rollback(org.apache.hadoop.hbase.Cell)">rollback</a></strong>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> cell)</code> +<div class="block">Removes the given cell from the segment</div> +</td> +</tr> +<tr class="altColor"> +<td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/regionserver/Segment.html" title="class in org.apache.hadoop.hbase.regionserver">Segment</a></code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/Segment.html#setSize(long)">setSize</a></strong>(long size)</code> +<div class="block">Setting the heap size of the segment - used to account for different class overheads</div> +</td> +</tr> +<tr class="rowColor"> +<td class="colFirst"><code>boolean</code></td> +<td class="colLast"><code><strong><a 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href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait(long,%20int)" title="class or interface in java.lang">wait</a></code></li> +</ul> +</li> +</ul> +</li> +</ul> +</div> +<div class="details"> +<ul class="blockList"> +<li class="blockList"> +<!-- ============ FIELD DETAIL =========== --> +<ul class="blockList"> +<li class="blockList"><a name="field_detail"> +<!-- --> +</a> +<h3>Field Detail</h3> +<a name="memStoreLAB"> +<!-- --> +</a> +<ul class="blockList"> +<li class="blockList"> +<h4>memStoreLAB</h4> +<pre>private volatile <a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreLAB.html" title="interface in org.apache.hadoop.hbase.regionserver">MemStoreLAB</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/Segment.html#line.41">memStoreLAB</a></pre> +</li> +</ul> +<a name="size"> +<!-- --> +</a> +<ul class="blockList"> +<li class="blockList"> +<h4>size</h4> +<pre>private final <a 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