| <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> |
| <html lang="en"> |
| <head> |
| <title>Source code</title> |
| <link rel="stylesheet" type="text/css" href="../../../../../../stylesheet.css" title="Style"> |
| </head> |
| <body> |
| <div class="sourceContainer"> |
| <pre><span class="sourceLineNo">001</span>/**<a name="line.1"></a> |
| <span class="sourceLineNo">002</span> *<a name="line.2"></a> |
| <span class="sourceLineNo">003</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.3"></a> |
| <span class="sourceLineNo">004</span> * or more contributor license agreements. See the NOTICE file<a name="line.4"></a> |
| <span class="sourceLineNo">005</span> * distributed with this work for additional information<a name="line.5"></a> |
| <span class="sourceLineNo">006</span> * regarding copyright ownership. The ASF licenses this file<a name="line.6"></a> |
| <span class="sourceLineNo">007</span> * to you under the Apache License, Version 2.0 (the<a name="line.7"></a> |
| <span class="sourceLineNo">008</span> * "License"); you may not use this file except in compliance<a name="line.8"></a> |
| <span class="sourceLineNo">009</span> * with the License. You may obtain a copy of the License at<a name="line.9"></a> |
| <span class="sourceLineNo">010</span> *<a name="line.10"></a> |
| <span class="sourceLineNo">011</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.11"></a> |
| <span class="sourceLineNo">012</span> *<a name="line.12"></a> |
| <span class="sourceLineNo">013</span> * Unless required by applicable law or agreed to in writing, software<a name="line.13"></a> |
| <span class="sourceLineNo">014</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.14"></a> |
| <span class="sourceLineNo">015</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.15"></a> |
| <span class="sourceLineNo">016</span> * See the License for the specific language governing permissions and<a name="line.16"></a> |
| <span class="sourceLineNo">017</span> * limitations under the License.<a name="line.17"></a> |
| <span class="sourceLineNo">018</span> */<a name="line.18"></a> |
| <span class="sourceLineNo">019</span>package org.apache.hadoop.hbase.regionserver;<a name="line.19"></a> |
| <span class="sourceLineNo">020</span><a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import java.util.Collections;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.util.List;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import org.apache.hadoop.hbase.CellComparator;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import org.apache.hadoop.hbase.util.ClassSize;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span><a name="line.26"></a> |
| <span class="sourceLineNo">027</span>/**<a name="line.27"></a> |
| <span class="sourceLineNo">028</span> * ImmutableSegment is an abstract class that extends the API supported by a {@link Segment},<a name="line.28"></a> |
| <span class="sourceLineNo">029</span> * and is not needed for a {@link MutableSegment}.<a name="line.29"></a> |
| <span class="sourceLineNo">030</span> */<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>@InterfaceAudience.Private<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>public abstract class ImmutableSegment extends Segment {<a name="line.32"></a> |
| <span class="sourceLineNo">033</span><a name="line.33"></a> |
| <span class="sourceLineNo">034</span> public static final long DEEP_OVERHEAD = Segment.DEEP_OVERHEAD + ClassSize.NON_SYNC_TIMERANGE_TRACKER;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span><a name="line.35"></a> |
| <span class="sourceLineNo">036</span> // each sub-type of immutable segment knows whether it is flat or not<a name="line.36"></a> |
| <span class="sourceLineNo">037</span> protected abstract boolean canBeFlattened();<a name="line.37"></a> |
| <span class="sourceLineNo">038</span><a name="line.38"></a> |
| <span class="sourceLineNo">039</span> public int getNumUniqueKeys() {<a name="line.39"></a> |
| <span class="sourceLineNo">040</span> return getCellSet().getNumUniqueKeys();<a name="line.40"></a> |
| <span class="sourceLineNo">041</span> }<a name="line.41"></a> |
| <span class="sourceLineNo">042</span><a name="line.42"></a> |
| <span class="sourceLineNo">043</span> ///////////////////// CONSTRUCTORS /////////////////////<a name="line.43"></a> |
| <span class="sourceLineNo">044</span> /**------------------------------------------------------------------------<a name="line.44"></a> |
| <span class="sourceLineNo">045</span> * Empty C-tor to be used only for CompositeImmutableSegment<a name="line.45"></a> |
| <span class="sourceLineNo">046</span> */<a name="line.46"></a> |
| <span class="sourceLineNo">047</span> protected ImmutableSegment(CellComparator comparator) {<a name="line.47"></a> |
| <span class="sourceLineNo">048</span> super(comparator, TimeRangeTracker.create(TimeRangeTracker.Type.NON_SYNC));<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> }<a name="line.49"></a> |
| <span class="sourceLineNo">050</span><a name="line.50"></a> |
| <span class="sourceLineNo">051</span> protected ImmutableSegment(CellComparator comparator, List<ImmutableSegment> segments) {<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> super(comparator, segments, TimeRangeTracker.create(TimeRangeTracker.Type.NON_SYNC));<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> }<a name="line.53"></a> |
| <span class="sourceLineNo">054</span><a name="line.54"></a> |
| <span class="sourceLineNo">055</span> /**------------------------------------------------------------------------<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> * C-tor to be used to build the derived classes<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> */<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> protected ImmutableSegment(CellSet cs, CellComparator comparator, MemStoreLAB memStoreLAB) {<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> super(cs, comparator, memStoreLAB, TimeRangeTracker.create(TimeRangeTracker.Type.NON_SYNC));<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> }<a name="line.60"></a> |
| <span class="sourceLineNo">061</span><a name="line.61"></a> |
| <span class="sourceLineNo">062</span> /**------------------------------------------------------------------------<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> * Copy C-tor to be used when new CSLMImmutableSegment (derived) is being built from a Mutable one.<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> * This C-tor should be used when active MutableSegment is pushed into the compaction<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> * pipeline and becomes an ImmutableSegment.<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> */<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> protected ImmutableSegment(Segment segment) {<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> super(segment);<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> }<a name="line.69"></a> |
| <span class="sourceLineNo">070</span><a name="line.70"></a> |
| <span class="sourceLineNo">071</span> ///////////////////// PUBLIC METHODS /////////////////////<a name="line.71"></a> |
| <span class="sourceLineNo">072</span><a name="line.72"></a> |
| <span class="sourceLineNo">073</span> public int getNumOfSegments() {<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> return 1;<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> }<a name="line.75"></a> |
| <span class="sourceLineNo">076</span><a name="line.76"></a> |
| <span class="sourceLineNo">077</span> public List<Segment> getAllSegments() {<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> return Collections.singletonList(this);<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> }<a name="line.79"></a> |
| <span class="sourceLineNo">080</span><a name="line.80"></a> |
| <span class="sourceLineNo">081</span> @Override<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> public String toString() {<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> String res = super.toString();<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> res += "Num uniques "+getNumUniqueKeys()+"; ";<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> return res;<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> }<a name="line.86"></a> |
| <span class="sourceLineNo">087</span><a name="line.87"></a> |
| <span class="sourceLineNo">088</span> List<KeyValueScanner> getSnapshotScanners() {<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> return Collections.singletonList(new SnapshotSegmentScanner(this));<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> }<a name="line.90"></a> |
| <span class="sourceLineNo">091</span>}<a name="line.91"></a> |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| </pre> |
| </div> |
| </body> |
| </html> |
