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| <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, Cellersion 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 CellIND, 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 org.apache.hadoop.hbase.Cell;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import org.slf4j.Logger;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import org.slf4j.LoggerFactory;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span><a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import java.util.Collection;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import java.util.Comparator;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import java.util.Iterator;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import java.util.Map;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import java.util.NavigableSet;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import java.util.NavigableMap;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import java.util.Set;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span><a name="line.33"></a> |
| <span class="sourceLineNo">034</span><a name="line.34"></a> |
| <span class="sourceLineNo">035</span>/**<a name="line.35"></a> |
| <span class="sourceLineNo">036</span> * CellFlatMap stores a constant number of elements and is immutable after creation stage.<a name="line.36"></a> |
| <span class="sourceLineNo">037</span> * Being immutable, the CellFlatMap can be implemented as array.<a name="line.37"></a> |
| <span class="sourceLineNo">038</span> * The actual array can be on- or off-heap and is implemented in concrete class derived from CellFlatMap.<a name="line.38"></a> |
| <span class="sourceLineNo">039</span> * The CellFlatMap uses no synchronization primitives, it is assumed to be created by a<a name="line.39"></a> |
| <span class="sourceLineNo">040</span> * single thread and then it can be read-only by multiple threads.<a name="line.40"></a> |
| <span class="sourceLineNo">041</span> *<a name="line.41"></a> |
| <span class="sourceLineNo">042</span> * The "flat" in the name, means that the memory layout of the Map is sequential array and thus<a name="line.42"></a> |
| <span class="sourceLineNo">043</span> * requires less memory than ConcurrentSkipListMap.<a name="line.43"></a> |
| <span class="sourceLineNo">044</span> */<a name="line.44"></a> |
| <span class="sourceLineNo">045</span>@InterfaceAudience.Private<a name="line.45"></a> |
| <span class="sourceLineNo">046</span>public abstract class CellFlatMap implements NavigableMap<Cell,Cell> {<a name="line.46"></a> |
| <span class="sourceLineNo">047</span> private static final Logger LOG = LoggerFactory.getLogger(CellFlatMap.class);<a name="line.47"></a> |
| <span class="sourceLineNo">048</span> private final Comparator<? super Cell> comparator;<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> protected int minCellIdx = 0; // the index of the minimal cell (for sub-sets)<a name="line.49"></a> |
| <span class="sourceLineNo">050</span> protected int maxCellIdx = 0; // the index of the cell after the maximal cell (for sub-sets)<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> private boolean descending = false;<a name="line.51"></a> |
| <span class="sourceLineNo">052</span><a name="line.52"></a> |
| <span class="sourceLineNo">053</span> /* C-tor */<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> public CellFlatMap(Comparator<? super Cell> comparator, int min, int max, boolean d){<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> this.comparator = comparator;<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> this.minCellIdx = min;<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> this.maxCellIdx = max;<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> this.descending = d;<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> }<a name="line.59"></a> |
| <span class="sourceLineNo">060</span><a name="line.60"></a> |
| <span class="sourceLineNo">061</span> /* Used for abstract CellFlatMap creation, implemented by derived class */<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> protected abstract CellFlatMap createSubCellFlatMap(int min, int max, boolean descending);<a name="line.62"></a> |
| <span class="sourceLineNo">063</span><a name="line.63"></a> |
| <span class="sourceLineNo">064</span> /* Returns the i-th cell in the cell block */<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> protected abstract Cell getCell(int i);<a name="line.65"></a> |
| <span class="sourceLineNo">066</span><a name="line.66"></a> |
| <span class="sourceLineNo">067</span> /**<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> * Binary search for a given key in between given boundaries of the array.<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> * Positive returned numbers mean the index.<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> * Negative returned numbers means the key not found.<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> *<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> * The absolute value of the output is the<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> * possible insert index for the searched key<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> *<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> * In twos-complement, (-1 * insertion point)-1 is the bitwise not of the insert point.<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> *<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> *<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> * @param needle The key to look for in all of the entries<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> * @return Same return value as Arrays.binarySearch.<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> */<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> private int find(Cell needle) {<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> int begin = minCellIdx;<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> int end = maxCellIdx - 1;<a name="line.83"></a> |
| <span class="sourceLineNo">084</span><a name="line.84"></a> |
| <span class="sourceLineNo">085</span> while (begin <= end) {<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> int mid = begin + ((end - begin) >> 1);<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> Cell midCell = getCell(mid);<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> int compareRes = comparator.compare(midCell, needle);<a name="line.88"></a> |
| <span class="sourceLineNo">089</span><a name="line.89"></a> |
| <span class="sourceLineNo">090</span> if (compareRes == 0) {<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> return mid; // 0 means equals. We found the key<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> }<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> // Key not found. Check the comparison results; reverse the meaning of<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> // the comparison in case the order is descending (using XOR)<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> if ((compareRes < 0) ^ descending) {<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> // midCell is less than needle so we need to look at farther up<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> begin = mid + 1;<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> } else {<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> // midCell is greater than needle so we need to look down<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> end = mid - 1;<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> }<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> }<a name="line.102"></a> |
| <span class="sourceLineNo">103</span><a name="line.103"></a> |
| <span class="sourceLineNo">104</span> return (-1 * begin)-1;<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> }<a name="line.105"></a> |
| <span class="sourceLineNo">106</span><a name="line.106"></a> |
| <span class="sourceLineNo">107</span> /**<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> * Get the index of the given anchor key for creating subsequent set.<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> * It doesn't matter whether the given key exists in the set or not.<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> * taking into consideration whether<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> * the key should be inclusive or exclusive.<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> */<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> private int getValidIndex(Cell key, boolean inclusive, boolean tail) {<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> final int index = find(key);<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> // get the valid (positive) insertion point from the output of the find() method<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> int insertionPoint = index < 0 ? ~index : index;<a name="line.116"></a> |
| <span class="sourceLineNo">117</span><a name="line.117"></a> |
| <span class="sourceLineNo">118</span> // correct the insertion point in case the given anchor key DOES EXIST in the set<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> if (index >= 0) {<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> if ( descending && !(tail ^ inclusive)) {<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> // for the descending case<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> // if anchor for head set (tail=false) AND anchor is not inclusive -> move the insertion pt<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> // if anchor for tail set (tail=true) AND the keys is inclusive -> move the insertion point<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> // because the end index of a set is the index of the cell after the maximal cell<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> insertionPoint += 1;<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> } else if ( !descending && (tail ^ inclusive)) {<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> // for the ascending case<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> // if anchor for head set (tail=false) AND anchor is inclusive -> move the insertion point<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> // because the end index of a set is the index of the cell after the maximal cell<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> // if anchor for tail set (tail=true) AND the keys is not inclusive -> move the insertion pt<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> insertionPoint += 1;<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> }<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> }<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> // insert the insertion point into the valid range,<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> // as we may enlarge it too much in the above correction<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> return Math.min(Math.max(insertionPoint, minCellIdx), maxCellIdx);<a name="line.136"></a> |
| <span class="sourceLineNo">137</span>}<a name="line.137"></a> |
| <span class="sourceLineNo">138</span><a name="line.138"></a> |
| <span class="sourceLineNo">139</span> @Override<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> public Comparator<? super Cell> comparator() {<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> return comparator;<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> }<a name="line.142"></a> |
| <span class="sourceLineNo">143</span><a name="line.143"></a> |
| <span class="sourceLineNo">144</span> @Override<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> public int size() {<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> return maxCellIdx-minCellIdx;<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> }<a name="line.147"></a> |
| <span class="sourceLineNo">148</span><a name="line.148"></a> |
| <span class="sourceLineNo">149</span> @Override<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> public boolean isEmpty() {<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> return ( size() == 0 );<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> }<a name="line.152"></a> |
| <span class="sourceLineNo">153</span><a name="line.153"></a> |
| <span class="sourceLineNo">154</span><a name="line.154"></a> |
| <span class="sourceLineNo">155</span> // ---------------- Sub-Maps ----------------<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> @Override<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> public NavigableMap<Cell, Cell> subMap( Cell fromKey,<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> boolean fromInclusive,<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> Cell toKey,<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> boolean toInclusive) {<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> final int lessCellIndex = getValidIndex(fromKey, fromInclusive, true);<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> final int greaterCellIndex = getValidIndex(toKey, toInclusive, false);<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> if (descending) {<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> return createSubCellFlatMap(greaterCellIndex, lessCellIndex, descending);<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> } else {<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> return createSubCellFlatMap(lessCellIndex, greaterCellIndex, descending);<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> }<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> }<a name="line.168"></a> |
| <span class="sourceLineNo">169</span><a name="line.169"></a> |
| <span class="sourceLineNo">170</span> @Override<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> public NavigableMap<Cell, Cell> headMap(Cell toKey, boolean inclusive) {<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> if (descending) {<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> return createSubCellFlatMap(getValidIndex(toKey, inclusive, false), maxCellIdx, descending);<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> } else {<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> return createSubCellFlatMap(minCellIdx, getValidIndex(toKey, inclusive, false), descending);<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> }<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> }<a name="line.177"></a> |
| <span class="sourceLineNo">178</span><a name="line.178"></a> |
| <span class="sourceLineNo">179</span> @Override<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> public NavigableMap<Cell, Cell> tailMap(Cell fromKey, boolean inclusive) {<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> if (descending) {<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> return createSubCellFlatMap(minCellIdx, getValidIndex(fromKey, inclusive, true), descending);<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> } else {<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> return createSubCellFlatMap(getValidIndex(fromKey, inclusive, true), maxCellIdx, descending);<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> }<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> }<a name="line.186"></a> |
| <span class="sourceLineNo">187</span><a name="line.187"></a> |
| <span class="sourceLineNo">188</span> @Override<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> public NavigableMap<Cell, Cell> descendingMap() {<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> return createSubCellFlatMap(minCellIdx, maxCellIdx, true);<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> }<a name="line.191"></a> |
| <span class="sourceLineNo">192</span><a name="line.192"></a> |
| <span class="sourceLineNo">193</span> @Override<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> public NavigableMap<Cell, Cell> subMap(Cell k1, Cell k2) {<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> return this.subMap(k1, true, k2, true);<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> }<a name="line.196"></a> |
| <span class="sourceLineNo">197</span><a name="line.197"></a> |
| <span class="sourceLineNo">198</span> @Override<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> public NavigableMap<Cell, Cell> headMap(Cell k) {<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> return this.headMap(k, true);<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> }<a name="line.201"></a> |
| <span class="sourceLineNo">202</span><a name="line.202"></a> |
| <span class="sourceLineNo">203</span> @Override<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> public NavigableMap<Cell, Cell> tailMap(Cell k) {<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> return this.tailMap(k, true);<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> }<a name="line.206"></a> |
| <span class="sourceLineNo">207</span><a name="line.207"></a> |
| <span class="sourceLineNo">208</span><a name="line.208"></a> |
| <span class="sourceLineNo">209</span> // -------------------------------- Key's getters --------------------------------<a name="line.209"></a> |
| <span class="sourceLineNo">210</span> @Override<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> public Cell firstKey() {<a name="line.211"></a> |
| <span class="sourceLineNo">212</span> if (isEmpty()) {<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> return null;<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> }<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> return descending ? getCell(maxCellIdx - 1) : getCell(minCellIdx);<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> }<a name="line.216"></a> |
| <span class="sourceLineNo">217</span><a name="line.217"></a> |
| <span class="sourceLineNo">218</span> @Override<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> public Cell lastKey() {<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> if (isEmpty()) {<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> return null;<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> }<a name="line.222"></a> |
| <span class="sourceLineNo">223</span> return descending ? getCell(minCellIdx) : getCell(maxCellIdx - 1);<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> }<a name="line.224"></a> |
| <span class="sourceLineNo">225</span><a name="line.225"></a> |
| <span class="sourceLineNo">226</span> @Override<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> public Cell lowerKey(Cell k) {<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> if (isEmpty()) {<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> return null;<a name="line.229"></a> |
| <span class="sourceLineNo">230</span> }<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> int index = find(k);<a name="line.231"></a> |
| <span class="sourceLineNo">232</span> // If index>=0 there's a key exactly equal<a name="line.232"></a> |
| <span class="sourceLineNo">233</span> index = (index>=0) ? index-1 : -(index);<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> return (index < minCellIdx || index >= maxCellIdx) ? null : getCell(index);<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> }<a name="line.235"></a> |
| <span class="sourceLineNo">236</span><a name="line.236"></a> |
| <span class="sourceLineNo">237</span> @Override<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> public Cell floorKey(Cell k) {<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> if (isEmpty()) {<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> return null;<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> }<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> int index = find(k);<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> index = (index>=0) ? index : -(index);<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> return (index < minCellIdx || index >= maxCellIdx) ? null : getCell(index);<a name="line.244"></a> |
| <span class="sourceLineNo">245</span> }<a name="line.245"></a> |
| <span class="sourceLineNo">246</span><a name="line.246"></a> |
| <span class="sourceLineNo">247</span> @Override<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> public Cell ceilingKey(Cell k) {<a name="line.248"></a> |
| <span class="sourceLineNo">249</span> if (isEmpty()) {<a name="line.249"></a> |
| <span class="sourceLineNo">250</span> return null;<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> }<a name="line.251"></a> |
| <span class="sourceLineNo">252</span> int index = find(k);<a name="line.252"></a> |
| <span class="sourceLineNo">253</span> index = (index>=0) ? index : -(index)+1;<a name="line.253"></a> |
| <span class="sourceLineNo">254</span> return (index < minCellIdx || index >= maxCellIdx) ? null : getCell(index);<a name="line.254"></a> |
| <span class="sourceLineNo">255</span> }<a name="line.255"></a> |
| <span class="sourceLineNo">256</span><a name="line.256"></a> |
| <span class="sourceLineNo">257</span> @Override<a name="line.257"></a> |
| <span class="sourceLineNo">258</span> public Cell higherKey(Cell k) {<a name="line.258"></a> |
| <span class="sourceLineNo">259</span> if (isEmpty()) {<a name="line.259"></a> |
| <span class="sourceLineNo">260</span> return null;<a name="line.260"></a> |
| <span class="sourceLineNo">261</span> }<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> int index = find(k);<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> index = (index>=0) ? index+1 : -(index)+1;<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> return (index < minCellIdx || index >= maxCellIdx) ? null : getCell(index);<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> }<a name="line.265"></a> |
| <span class="sourceLineNo">266</span><a name="line.266"></a> |
| <span class="sourceLineNo">267</span> @Override<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> public boolean containsKey(Object o) {<a name="line.268"></a> |
| <span class="sourceLineNo">269</span> int index = find((Cell) o);<a name="line.269"></a> |
| <span class="sourceLineNo">270</span> return (index >= 0);<a name="line.270"></a> |
| <span class="sourceLineNo">271</span> }<a name="line.271"></a> |
| <span class="sourceLineNo">272</span><a name="line.272"></a> |
| <span class="sourceLineNo">273</span> @Override<a name="line.273"></a> |
| <span class="sourceLineNo">274</span> public boolean containsValue(Object o) { // use containsKey(Object o) instead<a name="line.274"></a> |
| <span class="sourceLineNo">275</span> throw new UnsupportedOperationException("Use containsKey(Object o) instead");<a name="line.275"></a> |
| <span class="sourceLineNo">276</span> }<a name="line.276"></a> |
| <span class="sourceLineNo">277</span><a name="line.277"></a> |
| <span class="sourceLineNo">278</span> @Override<a name="line.278"></a> |
| <span class="sourceLineNo">279</span> public Cell get(Object o) {<a name="line.279"></a> |
| <span class="sourceLineNo">280</span> int index = find((Cell) o);<a name="line.280"></a> |
| <span class="sourceLineNo">281</span> return (index >= 0) ? getCell(index) : null;<a name="line.281"></a> |
| <span class="sourceLineNo">282</span> }<a name="line.282"></a> |
| <span class="sourceLineNo">283</span><a name="line.283"></a> |
| <span class="sourceLineNo">284</span> // -------------------------------- Entry's getters --------------------------------<a name="line.284"></a> |
| <span class="sourceLineNo">285</span><a name="line.285"></a> |
| <span class="sourceLineNo">286</span> private static class CellFlatMapEntry implements Entry<Cell, Cell> {<a name="line.286"></a> |
| <span class="sourceLineNo">287</span> private final Cell cell;<a name="line.287"></a> |
| <span class="sourceLineNo">288</span><a name="line.288"></a> |
| <span class="sourceLineNo">289</span> public CellFlatMapEntry (Cell cell) {<a name="line.289"></a> |
| <span class="sourceLineNo">290</span> this.cell = cell;<a name="line.290"></a> |
| <span class="sourceLineNo">291</span> }<a name="line.291"></a> |
| <span class="sourceLineNo">292</span><a name="line.292"></a> |
| <span class="sourceLineNo">293</span> @Override<a name="line.293"></a> |
| <span class="sourceLineNo">294</span> public Cell getKey() {<a name="line.294"></a> |
| <span class="sourceLineNo">295</span> return cell;<a name="line.295"></a> |
| <span class="sourceLineNo">296</span> }<a name="line.296"></a> |
| <span class="sourceLineNo">297</span><a name="line.297"></a> |
| <span class="sourceLineNo">298</span> @Override<a name="line.298"></a> |
| <span class="sourceLineNo">299</span> public Cell getValue() {<a name="line.299"></a> |
| <span class="sourceLineNo">300</span> return cell;<a name="line.300"></a> |
| <span class="sourceLineNo">301</span> }<a name="line.301"></a> |
| <span class="sourceLineNo">302</span><a name="line.302"></a> |
| <span class="sourceLineNo">303</span> @Override<a name="line.303"></a> |
| <span class="sourceLineNo">304</span> public Cell setValue(Cell value) {<a name="line.304"></a> |
| <span class="sourceLineNo">305</span> throw new UnsupportedOperationException();<a name="line.305"></a> |
| <span class="sourceLineNo">306</span> }<a name="line.306"></a> |
| <span class="sourceLineNo">307</span> }<a name="line.307"></a> |
| <span class="sourceLineNo">308</span><a name="line.308"></a> |
| <span class="sourceLineNo">309</span> @Override<a name="line.309"></a> |
| <span class="sourceLineNo">310</span> public Entry<Cell, Cell> lowerEntry(Cell k) {<a name="line.310"></a> |
| <span class="sourceLineNo">311</span> Cell cell = lowerKey(k);<a name="line.311"></a> |
| <span class="sourceLineNo">312</span> if (cell == null) {<a name="line.312"></a> |
| <span class="sourceLineNo">313</span> return null;<a name="line.313"></a> |
| <span class="sourceLineNo">314</span> }<a name="line.314"></a> |
| <span class="sourceLineNo">315</span> return new CellFlatMapEntry(cell);<a name="line.315"></a> |
| <span class="sourceLineNo">316</span> }<a name="line.316"></a> |
| <span class="sourceLineNo">317</span><a name="line.317"></a> |
| <span class="sourceLineNo">318</span> @Override<a name="line.318"></a> |
| <span class="sourceLineNo">319</span> public Entry<Cell, Cell> higherEntry(Cell k) {<a name="line.319"></a> |
| <span class="sourceLineNo">320</span> Cell cell = higherKey(k);<a name="line.320"></a> |
| <span class="sourceLineNo">321</span> if (cell == null) {<a name="line.321"></a> |
| <span class="sourceLineNo">322</span> return null;<a name="line.322"></a> |
| <span class="sourceLineNo">323</span> }<a name="line.323"></a> |
| <span class="sourceLineNo">324</span> return new CellFlatMapEntry(cell);<a name="line.324"></a> |
| <span class="sourceLineNo">325</span> }<a name="line.325"></a> |
| <span class="sourceLineNo">326</span><a name="line.326"></a> |
| <span class="sourceLineNo">327</span> @Override<a name="line.327"></a> |
| <span class="sourceLineNo">328</span> public Entry<Cell, Cell> ceilingEntry(Cell k) {<a name="line.328"></a> |
| <span class="sourceLineNo">329</span> Cell cell = ceilingKey(k);<a name="line.329"></a> |
| <span class="sourceLineNo">330</span> if (cell == null) {<a name="line.330"></a> |
| <span class="sourceLineNo">331</span> return null;<a name="line.331"></a> |
| <span class="sourceLineNo">332</span> }<a name="line.332"></a> |
| <span class="sourceLineNo">333</span> return new CellFlatMapEntry(cell);<a name="line.333"></a> |
| <span class="sourceLineNo">334</span> }<a name="line.334"></a> |
| <span class="sourceLineNo">335</span><a name="line.335"></a> |
| <span class="sourceLineNo">336</span> @Override<a name="line.336"></a> |
| <span class="sourceLineNo">337</span> public Entry<Cell, Cell> floorEntry(Cell k) {<a name="line.337"></a> |
| <span class="sourceLineNo">338</span> Cell cell = floorKey(k);<a name="line.338"></a> |
| <span class="sourceLineNo">339</span> if (cell == null) {<a name="line.339"></a> |
| <span class="sourceLineNo">340</span> return null;<a name="line.340"></a> |
| <span class="sourceLineNo">341</span> }<a name="line.341"></a> |
| <span class="sourceLineNo">342</span> return new CellFlatMapEntry(cell);<a name="line.342"></a> |
| <span class="sourceLineNo">343</span> }<a name="line.343"></a> |
| <span class="sourceLineNo">344</span><a name="line.344"></a> |
| <span class="sourceLineNo">345</span> @Override<a name="line.345"></a> |
| <span class="sourceLineNo">346</span> public Entry<Cell, Cell> firstEntry() {<a name="line.346"></a> |
| <span class="sourceLineNo">347</span> Cell cell = firstKey();<a name="line.347"></a> |
| <span class="sourceLineNo">348</span> if (cell == null) {<a name="line.348"></a> |
| <span class="sourceLineNo">349</span> return null;<a name="line.349"></a> |
| <span class="sourceLineNo">350</span> }<a name="line.350"></a> |
| <span class="sourceLineNo">351</span> return new CellFlatMapEntry(cell);<a name="line.351"></a> |
| <span class="sourceLineNo">352</span> }<a name="line.352"></a> |
| <span class="sourceLineNo">353</span><a name="line.353"></a> |
| <span class="sourceLineNo">354</span> @Override<a name="line.354"></a> |
| <span class="sourceLineNo">355</span> public Entry<Cell, Cell> lastEntry() {<a name="line.355"></a> |
| <span class="sourceLineNo">356</span> Cell cell = lastKey();<a name="line.356"></a> |
| <span class="sourceLineNo">357</span> if (cell == null) {<a name="line.357"></a> |
| <span class="sourceLineNo">358</span> return null;<a name="line.358"></a> |
| <span class="sourceLineNo">359</span> }<a name="line.359"></a> |
| <span class="sourceLineNo">360</span> return new CellFlatMapEntry(cell);<a name="line.360"></a> |
| <span class="sourceLineNo">361</span> }<a name="line.361"></a> |
| <span class="sourceLineNo">362</span><a name="line.362"></a> |
| <span class="sourceLineNo">363</span> // The following 2 methods (pollFirstEntry, pollLastEntry) are unsupported because these are updating methods.<a name="line.363"></a> |
| <span class="sourceLineNo">364</span> @Override<a name="line.364"></a> |
| <span class="sourceLineNo">365</span> public Entry<Cell, Cell> pollFirstEntry() {<a name="line.365"></a> |
| <span class="sourceLineNo">366</span> throw new UnsupportedOperationException();<a name="line.366"></a> |
| <span class="sourceLineNo">367</span> }<a name="line.367"></a> |
| <span class="sourceLineNo">368</span><a name="line.368"></a> |
| <span class="sourceLineNo">369</span> @Override<a name="line.369"></a> |
| <span class="sourceLineNo">370</span> public Entry<Cell, Cell> pollLastEntry() {<a name="line.370"></a> |
| <span class="sourceLineNo">371</span> throw new UnsupportedOperationException();<a name="line.371"></a> |
| <span class="sourceLineNo">372</span> }<a name="line.372"></a> |
| <span class="sourceLineNo">373</span><a name="line.373"></a> |
| <span class="sourceLineNo">374</span> // -------------------------------- Updates --------------------------------<a name="line.374"></a> |
| <span class="sourceLineNo">375</span> // All updating methods below are unsupported.<a name="line.375"></a> |
| <span class="sourceLineNo">376</span> // Assuming an array of Cells will be allocated externally,<a name="line.376"></a> |
| <span class="sourceLineNo">377</span> // fill up with Cells and provided in construction time.<a name="line.377"></a> |
| <span class="sourceLineNo">378</span> // Later the structure is immutable.<a name="line.378"></a> |
| <span class="sourceLineNo">379</span> @Override<a name="line.379"></a> |
| <span class="sourceLineNo">380</span> public Cell put(Cell k, Cell v) {<a name="line.380"></a> |
| <span class="sourceLineNo">381</span> throw new UnsupportedOperationException();<a name="line.381"></a> |
| <span class="sourceLineNo">382</span> }<a name="line.382"></a> |
| <span class="sourceLineNo">383</span><a name="line.383"></a> |
| <span class="sourceLineNo">384</span> @Override<a name="line.384"></a> |
| <span class="sourceLineNo">385</span> public void clear() {<a name="line.385"></a> |
| <span class="sourceLineNo">386</span> throw new UnsupportedOperationException();<a name="line.386"></a> |
| <span class="sourceLineNo">387</span> }<a name="line.387"></a> |
| <span class="sourceLineNo">388</span><a name="line.388"></a> |
| <span class="sourceLineNo">389</span> @Override<a name="line.389"></a> |
| <span class="sourceLineNo">390</span> public Cell remove(Object o) {<a name="line.390"></a> |
| <span class="sourceLineNo">391</span> throw new UnsupportedOperationException();<a name="line.391"></a> |
| <span class="sourceLineNo">392</span> }<a name="line.392"></a> |
| <span class="sourceLineNo">393</span><a name="line.393"></a> |
| <span class="sourceLineNo">394</span> @Override<a name="line.394"></a> |
| <span class="sourceLineNo">395</span> public void putAll(Map<? extends Cell, ? extends Cell> map) {<a name="line.395"></a> |
| <span class="sourceLineNo">396</span> throw new UnsupportedOperationException();<a name="line.396"></a> |
| <span class="sourceLineNo">397</span> }<a name="line.397"></a> |
| <span class="sourceLineNo">398</span><a name="line.398"></a> |
| <span class="sourceLineNo">399</span> // -------------------------------- Sub-Sets --------------------------------<a name="line.399"></a> |
| <span class="sourceLineNo">400</span> @Override<a name="line.400"></a> |
| <span class="sourceLineNo">401</span> public NavigableSet<Cell> navigableKeySet() {<a name="line.401"></a> |
| <span class="sourceLineNo">402</span> throw new UnsupportedOperationException();<a name="line.402"></a> |
| <span class="sourceLineNo">403</span> }<a name="line.403"></a> |
| <span class="sourceLineNo">404</span><a name="line.404"></a> |
| <span class="sourceLineNo">405</span> @Override<a name="line.405"></a> |
| <span class="sourceLineNo">406</span> public NavigableSet<Cell> descendingKeySet() {<a name="line.406"></a> |
| <span class="sourceLineNo">407</span> throw new UnsupportedOperationException();<a name="line.407"></a> |
| <span class="sourceLineNo">408</span> }<a name="line.408"></a> |
| <span class="sourceLineNo">409</span><a name="line.409"></a> |
| <span class="sourceLineNo">410</span> @Override<a name="line.410"></a> |
| <span class="sourceLineNo">411</span> public NavigableSet<Cell> keySet() {<a name="line.411"></a> |
| <span class="sourceLineNo">412</span> throw new UnsupportedOperationException();<a name="line.412"></a> |
| <span class="sourceLineNo">413</span> }<a name="line.413"></a> |
| <span class="sourceLineNo">414</span><a name="line.414"></a> |
| <span class="sourceLineNo">415</span> @Override<a name="line.415"></a> |
| <span class="sourceLineNo">416</span> public Collection<Cell> values() {<a name="line.416"></a> |
| <span class="sourceLineNo">417</span> return new CellFlatMapCollection();<a name="line.417"></a> |
| <span class="sourceLineNo">418</span> }<a name="line.418"></a> |
| <span class="sourceLineNo">419</span><a name="line.419"></a> |
| <span class="sourceLineNo">420</span> @Override<a name="line.420"></a> |
| <span class="sourceLineNo">421</span> public Set<Entry<Cell, Cell>> entrySet() {<a name="line.421"></a> |
| <span class="sourceLineNo">422</span> throw new UnsupportedOperationException();<a name="line.422"></a> |
| <span class="sourceLineNo">423</span> }<a name="line.423"></a> |
| <span class="sourceLineNo">424</span><a name="line.424"></a> |
| <span class="sourceLineNo">425</span><a name="line.425"></a> |
| <span class="sourceLineNo">426</span> // -------------------------------- Iterator K --------------------------------<a name="line.426"></a> |
| <span class="sourceLineNo">427</span> private final class CellFlatMapIterator implements Iterator<Cell> {<a name="line.427"></a> |
| <span class="sourceLineNo">428</span> int index;<a name="line.428"></a> |
| <span class="sourceLineNo">429</span><a name="line.429"></a> |
| <span class="sourceLineNo">430</span> private CellFlatMapIterator() {<a name="line.430"></a> |
| <span class="sourceLineNo">431</span> index = descending ? maxCellIdx-1 : minCellIdx;<a name="line.431"></a> |
| <span class="sourceLineNo">432</span> }<a name="line.432"></a> |
| <span class="sourceLineNo">433</span><a name="line.433"></a> |
| <span class="sourceLineNo">434</span> @Override<a name="line.434"></a> |
| <span class="sourceLineNo">435</span> public boolean hasNext() {<a name="line.435"></a> |
| <span class="sourceLineNo">436</span> return descending ? (index >= minCellIdx) : (index < maxCellIdx);<a name="line.436"></a> |
| <span class="sourceLineNo">437</span> }<a name="line.437"></a> |
| <span class="sourceLineNo">438</span><a name="line.438"></a> |
| <span class="sourceLineNo">439</span> @Override<a name="line.439"></a> |
| <span class="sourceLineNo">440</span> public Cell next() {<a name="line.440"></a> |
| <span class="sourceLineNo">441</span> Cell result = getCell(index);<a name="line.441"></a> |
| <span class="sourceLineNo">442</span> if (descending) {<a name="line.442"></a> |
| <span class="sourceLineNo">443</span> index--;<a name="line.443"></a> |
| <span class="sourceLineNo">444</span> } else {<a name="line.444"></a> |
| <span class="sourceLineNo">445</span> index++;<a name="line.445"></a> |
| <span class="sourceLineNo">446</span> }<a name="line.446"></a> |
| <span class="sourceLineNo">447</span> return result;<a name="line.447"></a> |
| <span class="sourceLineNo">448</span> }<a name="line.448"></a> |
| <span class="sourceLineNo">449</span><a name="line.449"></a> |
| <span class="sourceLineNo">450</span> @Override<a name="line.450"></a> |
| <span class="sourceLineNo">451</span> public void remove() {<a name="line.451"></a> |
| <span class="sourceLineNo">452</span> throw new UnsupportedOperationException();<a name="line.452"></a> |
| <span class="sourceLineNo">453</span> }<a name="line.453"></a> |
| <span class="sourceLineNo">454</span> }<a name="line.454"></a> |
| <span class="sourceLineNo">455</span><a name="line.455"></a> |
| <span class="sourceLineNo">456</span> // -------------------------------- Collection --------------------------------<a name="line.456"></a> |
| <span class="sourceLineNo">457</span> private final class CellFlatMapCollection implements Collection<Cell> {<a name="line.457"></a> |
| <span class="sourceLineNo">458</span><a name="line.458"></a> |
| <span class="sourceLineNo">459</span> @Override<a name="line.459"></a> |
| <span class="sourceLineNo">460</span> public int size() {<a name="line.460"></a> |
| <span class="sourceLineNo">461</span> return CellFlatMap.this.size();<a name="line.461"></a> |
| <span class="sourceLineNo">462</span> }<a name="line.462"></a> |
| <span class="sourceLineNo">463</span><a name="line.463"></a> |
| <span class="sourceLineNo">464</span> @Override<a name="line.464"></a> |
| <span class="sourceLineNo">465</span> public boolean isEmpty() {<a name="line.465"></a> |
| <span class="sourceLineNo">466</span> return CellFlatMap.this.isEmpty();<a name="line.466"></a> |
| <span class="sourceLineNo">467</span> }<a name="line.467"></a> |
| <span class="sourceLineNo">468</span><a name="line.468"></a> |
| <span class="sourceLineNo">469</span> @Override<a name="line.469"></a> |
| <span class="sourceLineNo">470</span> public void clear() {<a name="line.470"></a> |
| <span class="sourceLineNo">471</span> throw new UnsupportedOperationException();<a name="line.471"></a> |
| <span class="sourceLineNo">472</span> }<a name="line.472"></a> |
| <span class="sourceLineNo">473</span><a name="line.473"></a> |
| <span class="sourceLineNo">474</span> @Override<a name="line.474"></a> |
| <span class="sourceLineNo">475</span> public boolean contains(Object o) {<a name="line.475"></a> |
| <span class="sourceLineNo">476</span> return containsKey(o);<a name="line.476"></a> |
| <span class="sourceLineNo">477</span> }<a name="line.477"></a> |
| <span class="sourceLineNo">478</span><a name="line.478"></a> |
| <span class="sourceLineNo">479</span> @Override<a name="line.479"></a> |
| <span class="sourceLineNo">480</span> public Iterator<Cell> iterator() {<a name="line.480"></a> |
| <span class="sourceLineNo">481</span> return new CellFlatMapIterator();<a name="line.481"></a> |
| <span class="sourceLineNo">482</span> }<a name="line.482"></a> |
| <span class="sourceLineNo">483</span><a name="line.483"></a> |
| <span class="sourceLineNo">484</span> @Override<a name="line.484"></a> |
| <span class="sourceLineNo">485</span> public Object[] toArray() {<a name="line.485"></a> |
| <span class="sourceLineNo">486</span> throw new UnsupportedOperationException();<a name="line.486"></a> |
| <span class="sourceLineNo">487</span> }<a name="line.487"></a> |
| <span class="sourceLineNo">488</span><a name="line.488"></a> |
| <span class="sourceLineNo">489</span> @Override<a name="line.489"></a> |
| <span class="sourceLineNo">490</span> public <T> T[] toArray(T[] ts) {<a name="line.490"></a> |
| <span class="sourceLineNo">491</span> throw new UnsupportedOperationException();<a name="line.491"></a> |
| <span class="sourceLineNo">492</span> }<a name="line.492"></a> |
| <span class="sourceLineNo">493</span><a name="line.493"></a> |
| <span class="sourceLineNo">494</span> @Override<a name="line.494"></a> |
| <span class="sourceLineNo">495</span> public boolean add(Cell k) {<a name="line.495"></a> |
| <span class="sourceLineNo">496</span> throw new UnsupportedOperationException();<a name="line.496"></a> |
| <span class="sourceLineNo">497</span> }<a name="line.497"></a> |
| <span class="sourceLineNo">498</span><a name="line.498"></a> |
| <span class="sourceLineNo">499</span> @Override<a name="line.499"></a> |
| <span class="sourceLineNo">500</span> public boolean remove(Object o) {<a name="line.500"></a> |
| <span class="sourceLineNo">501</span> throw new UnsupportedOperationException();<a name="line.501"></a> |
| <span class="sourceLineNo">502</span> }<a name="line.502"></a> |
| <span class="sourceLineNo">503</span><a name="line.503"></a> |
| <span class="sourceLineNo">504</span> @Override<a name="line.504"></a> |
| <span class="sourceLineNo">505</span> public boolean containsAll(Collection<?> collection) {<a name="line.505"></a> |
| <span class="sourceLineNo">506</span> throw new UnsupportedOperationException();<a name="line.506"></a> |
| <span class="sourceLineNo">507</span> }<a name="line.507"></a> |
| <span class="sourceLineNo">508</span><a name="line.508"></a> |
| <span class="sourceLineNo">509</span> @Override<a name="line.509"></a> |
| <span class="sourceLineNo">510</span> public boolean addAll(Collection<? extends Cell> collection) {<a name="line.510"></a> |
| <span class="sourceLineNo">511</span> throw new UnsupportedOperationException();<a name="line.511"></a> |
| <span class="sourceLineNo">512</span> }<a name="line.512"></a> |
| <span class="sourceLineNo">513</span><a name="line.513"></a> |
| <span class="sourceLineNo">514</span> @Override<a name="line.514"></a> |
| <span class="sourceLineNo">515</span> public boolean removeAll(Collection<?> collection) {<a name="line.515"></a> |
| <span class="sourceLineNo">516</span> throw new UnsupportedOperationException();<a name="line.516"></a> |
| <span class="sourceLineNo">517</span> }<a name="line.517"></a> |
| <span class="sourceLineNo">518</span><a name="line.518"></a> |
| <span class="sourceLineNo">519</span> @Override<a name="line.519"></a> |
| <span class="sourceLineNo">520</span> public boolean retainAll(Collection<?> collection) {<a name="line.520"></a> |
| <span class="sourceLineNo">521</span> throw new UnsupportedOperationException();<a name="line.521"></a> |
| <span class="sourceLineNo">522</span> }<a name="line.522"></a> |
| <span class="sourceLineNo">523</span> }<a name="line.523"></a> |
| <span class="sourceLineNo">524</span>}<a name="line.524"></a> |
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| </pre> |
| </div> |
| </body> |
| </html> |
