http://git-wip-us.apache.org/repos/asf/hbase-site/blob/41a7fcc5/devapidocs/src-html/org/apache/hadoop/hbase/coprocessor/RegionObserver.MutationType.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/coprocessor/RegionObserver.MutationType.html b/devapidocs/src-html/org/apache/hadoop/hbase/coprocessor/RegionObserver.MutationType.html index 4e07a5f..1be8978 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/coprocessor/RegionObserver.MutationType.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/coprocessor/RegionObserver.MutationType.html @@ -30,1014 +30,1008 @@ <span class="sourceLineNo">022</span>import java.io.IOException;<a name="line.22"></a> <span class="sourceLineNo">023</span>import java.util.List;<a name="line.23"></a> <span class="sourceLineNo">024</span>import java.util.Map;<a name="line.24"></a> -<span class="sourceLineNo">025</span>import java.util.NavigableSet;<a name="line.25"></a> -<span class="sourceLineNo">026</span><a name="line.26"></a> -<span class="sourceLineNo">027</span>import org.apache.hadoop.fs.FileSystem;<a name="line.27"></a> -<span class="sourceLineNo">028</span>import org.apache.hadoop.fs.Path;<a name="line.28"></a> -<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.Cell;<a name="line.29"></a> -<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.CompareOperator;<a name="line.30"></a> -<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.HBaseInterfaceAudience;<a name="line.31"></a> -<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.client.Append;<a name="line.32"></a> -<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.client.Delete;<a name="line.33"></a> -<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.client.Durability;<a name="line.34"></a> -<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.client.Get;<a name="line.35"></a> -<span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.client.Increment;<a name="line.36"></a> -<span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.client.Mutation;<a name="line.37"></a> -<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.client.Put;<a name="line.38"></a> -<span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.39"></a> -<span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.client.Result;<a name="line.40"></a> -<span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.client.Scan;<a name="line.41"></a> -<span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.filter.ByteArrayComparable;<a name="line.42"></a> -<span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.io.FSDataInputStreamWrapper;<a name="line.43"></a> -<span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.io.Reference;<a name="line.44"></a> -<span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.io.hfile.CacheConfig;<a name="line.45"></a> -<span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.regionserver.InternalScanner;<a name="line.46"></a> -<span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.regionserver.KeyValueScanner;<a name="line.47"></a> -<span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.regionserver.MiniBatchOperationInProgress;<a name="line.48"></a> -<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.regionserver.OperationStatus;<a name="line.49"></a> -<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.regionserver.Region;<a name="line.50"></a> -<span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.regionserver.Region.Operation;<a name="line.51"></a> -<span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.regionserver.RegionScanner;<a name="line.52"></a> -<span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.regionserver.ScanType;<a name="line.53"></a> -<span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.regionserver.Store;<a name="line.54"></a> -<span class="sourceLineNo">055</span>import org.apache.hadoop.hbase.regionserver.StoreFile;<a name="line.55"></a> -<span class="sourceLineNo">056</span>import org.apache.hadoop.hbase.regionserver.StoreFileReader;<a name="line.56"></a> -<span class="sourceLineNo">057</span>import org.apache.hadoop.hbase.regionserver.compactions.CompactionLifeCycleTracker;<a name="line.57"></a> -<span class="sourceLineNo">058</span>import org.apache.hadoop.hbase.regionserver.compactions.CompactionRequest;<a name="line.58"></a> -<span class="sourceLineNo">059</span>import org.apache.hadoop.hbase.regionserver.querymatcher.DeleteTracker;<a name="line.59"></a> -<span class="sourceLineNo">060</span>import org.apache.hadoop.hbase.shaded.com.google.common.collect.ImmutableList;<a name="line.60"></a> -<span class="sourceLineNo">061</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.61"></a> -<span class="sourceLineNo">062</span>import org.apache.hadoop.hbase.wal.WALEdit;<a name="line.62"></a> -<span class="sourceLineNo">063</span>import org.apache.hadoop.hbase.wal.WALKey;<a name="line.63"></a> -<span class="sourceLineNo">064</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.64"></a> -<span class="sourceLineNo">065</span>import org.apache.yetus.audience.InterfaceStability;<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> * Coprocessors implement this interface to observe and mediate client actions on the region.<a name="line.68"></a> -<span class="sourceLineNo">069</span> * <p><a name="line.69"></a> -<span class="sourceLineNo">070</span> * Since most implementations will be interested in only a subset of hooks, this class uses<a name="line.70"></a> -<span class="sourceLineNo">071</span> * 'default' functions to avoid having to add unnecessary overrides. When the functions are<a name="line.71"></a> -<span class="sourceLineNo">072</span> * non-empty, it's simply to satisfy the compiler by returning value of expected (non-void) type. It<a name="line.72"></a> -<span class="sourceLineNo">073</span> * is done in a way that these default definitions act as no-op. So our suggestion to implementation<a name="line.73"></a> -<span class="sourceLineNo">074</span> * would be to not call these 'default' methods from overrides.<a name="line.74"></a> -<span class="sourceLineNo">075</span> * <p><a name="line.75"></a> -<span class="sourceLineNo">076</span> * <h3>Exception Handling</h3><br><a name="line.76"></a> -<span class="sourceLineNo">077</span> * For all functions, exception handling is done as follows:<a name="line.77"></a> +<span class="sourceLineNo">025</span><a name="line.25"></a> +<span class="sourceLineNo">026</span>import org.apache.hadoop.fs.FileSystem;<a name="line.26"></a> +<span class="sourceLineNo">027</span>import org.apache.hadoop.fs.Path;<a name="line.27"></a> +<span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.Cell;<a name="line.28"></a> +<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.CompareOperator;<a name="line.29"></a> +<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.HBaseInterfaceAudience;<a name="line.30"></a> +<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.client.Append;<a name="line.31"></a> +<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.client.Delete;<a name="line.32"></a> +<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.client.Durability;<a name="line.33"></a> +<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.client.Get;<a name="line.34"></a> +<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.client.Increment;<a name="line.35"></a> +<span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.client.Mutation;<a name="line.36"></a> +<span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.client.Put;<a name="line.37"></a> +<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.38"></a> +<span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.client.Result;<a name="line.39"></a> +<span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.client.Scan;<a name="line.40"></a> +<span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.filter.ByteArrayComparable;<a name="line.41"></a> +<span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.io.FSDataInputStreamWrapper;<a name="line.42"></a> +<span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.io.Reference;<a name="line.43"></a> +<span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.io.hfile.CacheConfig;<a name="line.44"></a> +<span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.regionserver.InternalScanner;<a name="line.45"></a> +<span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.regionserver.MiniBatchOperationInProgress;<a name="line.46"></a> +<span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.regionserver.OperationStatus;<a name="line.47"></a> +<span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.regionserver.Region;<a name="line.48"></a> +<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.regionserver.Region.Operation;<a name="line.49"></a> +<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.regionserver.RegionScanner;<a name="line.50"></a> +<span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.regionserver.ScanType;<a name="line.51"></a> +<span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.regionserver.Store;<a name="line.52"></a> +<span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.regionserver.StoreFile;<a name="line.53"></a> +<span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.regionserver.StoreFileReader;<a name="line.54"></a> +<span class="sourceLineNo">055</span>import org.apache.hadoop.hbase.regionserver.compactions.CompactionLifeCycleTracker;<a name="line.55"></a> +<span class="sourceLineNo">056</span>import org.apache.hadoop.hbase.regionserver.compactions.CompactionRequest;<a name="line.56"></a> +<span class="sourceLineNo">057</span>import org.apache.hadoop.hbase.regionserver.querymatcher.DeleteTracker;<a name="line.57"></a> +<span class="sourceLineNo">058</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.58"></a> +<span class="sourceLineNo">059</span>import org.apache.hadoop.hbase.wal.WALEdit;<a name="line.59"></a> +<span class="sourceLineNo">060</span>import org.apache.hadoop.hbase.wal.WALKey;<a name="line.60"></a> +<span class="sourceLineNo">061</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.61"></a> +<span class="sourceLineNo">062</span>import org.apache.yetus.audience.InterfaceStability;<a name="line.62"></a> +<span class="sourceLineNo">063</span><a name="line.63"></a> +<span class="sourceLineNo">064</span>/**<a name="line.64"></a> +<span class="sourceLineNo">065</span> * Coprocessors implement this interface to observe and mediate client actions on the region.<a name="line.65"></a> +<span class="sourceLineNo">066</span> * <p><a name="line.66"></a> +<span class="sourceLineNo">067</span> * Since most implementations will be interested in only a subset of hooks, this class uses<a name="line.67"></a> +<span class="sourceLineNo">068</span> * 'default' functions to avoid having to add unnecessary overrides. When the functions are<a name="line.68"></a> +<span class="sourceLineNo">069</span> * non-empty, it's simply to satisfy the compiler by returning value of expected (non-void) type. It<a name="line.69"></a> +<span class="sourceLineNo">070</span> * is done in a way that these default definitions act as no-op. So our suggestion to implementation<a name="line.70"></a> +<span class="sourceLineNo">071</span> * would be to not call these 'default' methods from overrides.<a name="line.71"></a> +<span class="sourceLineNo">072</span> * <p><a name="line.72"></a> +<span class="sourceLineNo">073</span> * <h3>Exception Handling</h3><br><a name="line.73"></a> +<span class="sourceLineNo">074</span> * For all functions, exception handling is done as follows:<a name="line.74"></a> +<span class="sourceLineNo">075</span> * <ul><a name="line.75"></a> +<span class="sourceLineNo">076</span> * <li>Exceptions of type {@link IOException} are reported back to client.</li><a name="line.76"></a> +<span class="sourceLineNo">077</span> * <li>For any other kind of exception:<a name="line.77"></a> <span class="sourceLineNo">078</span> * <ul><a name="line.78"></a> -<span class="sourceLineNo">079</span> * <li>Exceptions of type {@link IOException} are reported back to client.</li><a name="line.79"></a> -<span class="sourceLineNo">080</span> * <li>For any other kind of exception:<a name="line.80"></a> -<span class="sourceLineNo">081</span> * <ul><a name="line.81"></a> -<span class="sourceLineNo">082</span> * <li>If the configuration {@link CoprocessorHost#ABORT_ON_ERROR_KEY} is set to true, then the<a name="line.82"></a> -<span class="sourceLineNo">083</span> * server aborts.</li><a name="line.83"></a> -<span class="sourceLineNo">084</span> * <li>Otherwise, coprocessor is removed from the server and<a name="line.84"></a> -<span class="sourceLineNo">085</span> * {@link org.apache.hadoop.hbase.DoNotRetryIOException} is returned to the client.</li><a name="line.85"></a> -<span class="sourceLineNo">086</span> * </ul><a name="line.86"></a> -<span class="sourceLineNo">087</span> * </li><a name="line.87"></a> -<span class="sourceLineNo">088</span> * </ul><a name="line.88"></a> -<span class="sourceLineNo">089</span> * <p><a name="line.89"></a> -<span class="sourceLineNo">090</span> * <h3>For Split Related Hooks</h3> <br><a name="line.90"></a> -<span class="sourceLineNo">091</span> * In hbase2/AMv2, master runs splits, so the split related hooks are moved to<a name="line.91"></a> -<span class="sourceLineNo">092</span> * {@link MasterObserver}.<a name="line.92"></a> -<span class="sourceLineNo">093</span> * <p><a name="line.93"></a> -<span class="sourceLineNo">094</span> * <h3>Increment Column Value</h3><br><a name="line.94"></a> -<span class="sourceLineNo">095</span> * We do not call this hook anymore.<a name="line.95"></a> -<span class="sourceLineNo">096</span> */<a name="line.96"></a> -<span class="sourceLineNo">097</span>@InterfaceAudience.LimitedPrivate(HBaseInterfaceAudience.COPROC)<a name="line.97"></a> -<span class="sourceLineNo">098</span>@InterfaceStability.Evolving<a name="line.98"></a> -<span class="sourceLineNo">099</span>// TODO as method signatures need to break, update to<a name="line.99"></a> -<span class="sourceLineNo">100</span>// ObserverContext<? extends RegionCoprocessorEnvironment><a name="line.100"></a> -<span class="sourceLineNo">101</span>// so we can use additional environment state that isn't exposed to coprocessors.<a name="line.101"></a> -<span class="sourceLineNo">102</span>public interface RegionObserver {<a name="line.102"></a> -<span class="sourceLineNo">103</span> /** Mutation type for postMutationBeforeWAL hook */<a name="line.103"></a> -<span class="sourceLineNo">104</span> enum MutationType {<a name="line.104"></a> -<span class="sourceLineNo">105</span> APPEND, INCREMENT<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> /**<a name="line.108"></a> -<span class="sourceLineNo">109</span> * Called before the region is reported as open to the master.<a name="line.109"></a> -<span class="sourceLineNo">110</span> * @param c the environment provided by the region server<a name="line.110"></a> -<span class="sourceLineNo">111</span> */<a name="line.111"></a> -<span class="sourceLineNo">112</span> default void preOpen(ObserverContext<RegionCoprocessorEnvironment> c) throws IOException {}<a name="line.112"></a> -<span class="sourceLineNo">113</span><a name="line.113"></a> -<span class="sourceLineNo">114</span> /**<a name="line.114"></a> -<span class="sourceLineNo">115</span> * Called after the region is reported as open to the master.<a name="line.115"></a> -<span class="sourceLineNo">116</span> * @param c the environment provided by the region server<a name="line.116"></a> -<span class="sourceLineNo">117</span> */<a name="line.117"></a> -<span class="sourceLineNo">118</span> default void postOpen(ObserverContext<RegionCoprocessorEnvironment> c) {}<a name="line.118"></a> -<span class="sourceLineNo">119</span><a name="line.119"></a> -<span class="sourceLineNo">120</span> /**<a name="line.120"></a> -<span class="sourceLineNo">121</span> * Called after the log replay on the region is over.<a name="line.121"></a> -<span class="sourceLineNo">122</span> * @param c the environment provided by the region server<a name="line.122"></a> -<span class="sourceLineNo">123</span> */<a name="line.123"></a> -<span class="sourceLineNo">124</span> default void postLogReplay(ObserverContext<RegionCoprocessorEnvironment> c) {}<a name="line.124"></a> -<span class="sourceLineNo">125</span><a name="line.125"></a> -<span class="sourceLineNo">126</span> /**<a name="line.126"></a> -<span class="sourceLineNo">127</span> * Called before the memstore is flushed to disk.<a name="line.127"></a> -<span class="sourceLineNo">128</span> * @param c the environment provided by the region server<a name="line.128"></a> -<span class="sourceLineNo">129</span> */<a name="line.129"></a> -<span class="sourceLineNo">130</span> default void preFlush(final ObserverContext<RegionCoprocessorEnvironment> c) throws IOException {}<a name="line.130"></a> -<span class="sourceLineNo">131</span><a name="line.131"></a> -<span class="sourceLineNo">132</span> /**<a name="line.132"></a> -<span class="sourceLineNo">133</span> * Called before a Store's memstore is flushed to disk.<a name="line.133"></a> -<span class="sourceLineNo">134</span> * @param c the environment provided by the region server<a name="line.134"></a> -<span class="sourceLineNo">135</span> * @param store the store where compaction is being requested<a name="line.135"></a> -<span class="sourceLineNo">136</span> * @param scanner the scanner over existing data used in the store file<a name="line.136"></a> -<span class="sourceLineNo">137</span> * @return the scanner to use during compaction. Should not be {@code null}<a name="line.137"></a> -<span class="sourceLineNo">138</span> * unless the implementation is writing new store files on its own.<a name="line.138"></a> -<span class="sourceLineNo">139</span> */<a name="line.139"></a> -<span class="sourceLineNo">140</span> default InternalScanner preFlush(ObserverContext<RegionCoprocessorEnvironment> c, Store store,<a name="line.140"></a> -<span class="sourceLineNo">141</span> InternalScanner scanner) throws IOException {<a name="line.141"></a> -<span class="sourceLineNo">142</span> return scanner;<a name="line.142"></a> -<span class="sourceLineNo">143</span> }<a name="line.143"></a> -<span class="sourceLineNo">144</span><a name="line.144"></a> -<span class="sourceLineNo">145</span> /**<a name="line.145"></a> -<span class="sourceLineNo">146</span> * Called after the memstore is flushed to disk.<a name="line.146"></a> -<span class="sourceLineNo">147</span> * @param c the environment provided by the region server<a name="line.147"></a> -<span class="sourceLineNo">148</span> * @throws IOException if an error occurred on the coprocessor<a name="line.148"></a> -<span class="sourceLineNo">149</span> */<a name="line.149"></a> -<span class="sourceLineNo">150</span> default void postFlush(ObserverContext<RegionCoprocessorEnvironment> c) throws IOException {}<a name="line.150"></a> -<span class="sourceLineNo">151</span><a name="line.151"></a> -<span class="sourceLineNo">152</span> /**<a name="line.152"></a> -<span class="sourceLineNo">153</span> * Called after a Store's memstore is flushed to disk.<a name="line.153"></a> -<span class="sourceLineNo">154</span> * @param c the environment provided by the region server<a name="line.154"></a> -<span class="sourceLineNo">155</span> * @param store the store being flushed<a name="line.155"></a> -<span class="sourceLineNo">156</span> * @param resultFile the new store file written out during compaction<a name="line.156"></a> -<span class="sourceLineNo">157</span> */<a name="line.157"></a> -<span class="sourceLineNo">158</span> default void postFlush(ObserverContext<RegionCoprocessorEnvironment> c, Store store,<a name="line.158"></a> -<span class="sourceLineNo">159</span> StoreFile resultFile) throws IOException {}<a name="line.159"></a> -<span class="sourceLineNo">160</span><a name="line.160"></a> -<span class="sourceLineNo">161</span> /**<a name="line.161"></a> -<span class="sourceLineNo">162</span> * Called prior to selecting the {@link StoreFile StoreFiles} to compact from the list of<a name="line.162"></a> -<span class="sourceLineNo">163</span> * available candidates. To alter the files used for compaction, you may mutate the passed in list<a name="line.163"></a> -<span class="sourceLineNo">164</span> * of candidates.<a name="line.164"></a> -<span class="sourceLineNo">165</span> * @param c the environment provided by the region server<a name="line.165"></a> -<span class="sourceLineNo">166</span> * @param store the store where compaction is being requested<a name="line.166"></a> -<span class="sourceLineNo">167</span> * @param candidates the store files currently available for compaction<a name="line.167"></a> -<span class="sourceLineNo">168</span> * @param tracker tracker used to track the life cycle of a compaction<a name="line.168"></a> -<span class="sourceLineNo">169</span> */<a name="line.169"></a> -<span class="sourceLineNo">170</span> default void preCompactSelection(ObserverContext<RegionCoprocessorEnvironment> c, Store store,<a name="line.170"></a> -<span class="sourceLineNo">171</span> List<? extends StoreFile> candidates, CompactionLifeCycleTracker tracker)<a name="line.171"></a> -<span class="sourceLineNo">172</span> throws IOException {}<a name="line.172"></a> -<span class="sourceLineNo">173</span><a name="line.173"></a> -<span class="sourceLineNo">174</span> /**<a name="line.174"></a> -<span class="sourceLineNo">175</span> * Called after the {@link StoreFile}s to compact have been selected from the available<a name="line.175"></a> -<span class="sourceLineNo">176</span> * candidates.<a name="line.176"></a> -<span class="sourceLineNo">177</span> * @param c the environment provided by the region server<a name="line.177"></a> -<span class="sourceLineNo">178</span> * @param store the store being compacted<a name="line.178"></a> -<span class="sourceLineNo">179</span> * @param selected the store files selected to compact<a name="line.179"></a> -<span class="sourceLineNo">180</span> * @param tracker tracker used to track the life cycle of a compaction<a name="line.180"></a> -<span class="sourceLineNo">181</span> * @param request the requested compaction<a name="line.181"></a> -<span class="sourceLineNo">182</span> */<a name="line.182"></a> -<span class="sourceLineNo">183</span> default void postCompactSelection(ObserverContext<RegionCoprocessorEnvironment> c, Store store,<a name="line.183"></a> -<span class="sourceLineNo">184</span> ImmutableList<? extends StoreFile> selected, CompactionLifeCycleTracker tracker,<a name="line.184"></a> -<span class="sourceLineNo">185</span> CompactionRequest request) {}<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> * Called prior to writing the {@link StoreFile}s selected for compaction into a new<a name="line.188"></a> -<span class="sourceLineNo">189</span> * {@code StoreFile}. To override or modify the compaction process, implementing classes have two<a name="line.189"></a> -<span class="sourceLineNo">190</span> * options:<a name="line.190"></a> -<span class="sourceLineNo">191</span> * <ul><a name="line.191"></a> -<span class="sourceLineNo">192</span> * <li>Wrap the provided {@link InternalScanner} with a custom implementation that is returned<a name="line.192"></a> -<span class="sourceLineNo">193</span> * from this method. The custom scanner can then inspect<a name="line.193"></a> -<span class="sourceLineNo">194</span> * {@link org.apache.hadoop.hbase.KeyValue}s from the wrapped scanner, applying its own<a name="line.194"></a> -<span class="sourceLineNo">195</span> * policy to what gets written.</li><a name="line.195"></a> -<span class="sourceLineNo">196</span> * <li>Call {@link org.apache.hadoop.hbase.coprocessor.ObserverContext#bypass()} and provide a<a name="line.196"></a> -<span class="sourceLineNo">197</span> * custom implementation for writing of new {@link StoreFile}s. <strong>Note: any implementations<a name="line.197"></a> -<span class="sourceLineNo">198</span> * bypassing core compaction using this approach must write out new store files themselves or the<a name="line.198"></a> -<span class="sourceLineNo">199</span> * existing data will no longer be available after compaction.</strong></li><a name="line.199"></a> -<span class="sourceLineNo">200</span> * </ul><a name="line.200"></a> -<span class="sourceLineNo">201</span> * @param c the environment provided by the region server<a name="line.201"></a> -<span class="sourceLineNo">202</span> * @param store the store being compacted<a name="line.202"></a> -<span class="sourceLineNo">203</span> * @param scanner the scanner over existing data used in the store file rewriting<a name="line.203"></a> -<span class="sourceLineNo">204</span> * @param scanType type of Scan<a name="line.204"></a> -<span class="sourceLineNo">205</span> * @param tracker tracker used to track the life cycle of a compaction<a name="line.205"></a> -<span class="sourceLineNo">206</span> * @param request the requested compaction<a name="line.206"></a> -<span class="sourceLineNo">207</span> * @return the scanner to use during compaction. Should not be {@code null} unless the<a name="line.207"></a> -<span class="sourceLineNo">208</span> * implementation is writing new store files on its own.<a name="line.208"></a> -<span class="sourceLineNo">209</span> */<a name="line.209"></a> -<span class="sourceLineNo">210</span> default InternalScanner preCompact(ObserverContext<RegionCoprocessorEnvironment> c, Store store,<a name="line.210"></a> -<span class="sourceLineNo">211</span> InternalScanner scanner, ScanType scanType, CompactionLifeCycleTracker tracker,<a name="line.211"></a> -<span class="sourceLineNo">212</span> CompactionRequest request)<a name="line.212"></a> -<span class="sourceLineNo">213</span> throws IOException {<a name="line.213"></a> -<span class="sourceLineNo">214</span> return scanner;<a name="line.214"></a> -<span class="sourceLineNo">215</span> }<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> * Called after compaction has completed and the new store file has been moved in to place.<a name="line.218"></a> -<span class="sourceLineNo">219</span> * @param c the environment provided by the region server<a name="line.219"></a> -<span class="sourceLineNo">220</span> * @param store the store being compacted<a name="line.220"></a> -<span class="sourceLineNo">221</span> * @param resultFile the new store file written out during compaction<a name="line.221"></a> -<span class="sourceLineNo">222</span> * @param tracker used to track the life cycle of a compaction<a name="line.222"></a> -<span class="sourceLineNo">223</span> * @param request the requested compaction<a name="line.223"></a> -<span class="sourceLineNo">224</span> */<a name="line.224"></a> -<span class="sourceLineNo">225</span> default void postCompact(ObserverContext<RegionCoprocessorEnvironment> c, Store store,<a name="line.225"></a> -<span class="sourceLineNo">226</span> StoreFile resultFile, CompactionLifeCycleTracker tracker, CompactionRequest request)<a name="line.226"></a> -<span class="sourceLineNo">227</span> throws IOException {}<a name="line.227"></a> -<span class="sourceLineNo">228</span><a name="line.228"></a> -<span class="sourceLineNo">229</span> /**<a name="line.229"></a> -<span class="sourceLineNo">230</span> * Called before the region is reported as closed to the master.<a name="line.230"></a> -<span class="sourceLineNo">231</span> * @param c the environment provided by the region server<a name="line.231"></a> -<span class="sourceLineNo">232</span> * @param abortRequested true if the region server is aborting<a name="line.232"></a> -<span class="sourceLineNo">233</span> */<a name="line.233"></a> -<span class="sourceLineNo">234</span> default void preClose(ObserverContext<RegionCoprocessorEnvironment> c, boolean abortRequested)<a name="line.234"></a> -<span class="sourceLineNo">235</span> throws IOException {}<a name="line.235"></a> -<span class="sourceLineNo">236</span><a name="line.236"></a> -<span class="sourceLineNo">237</span> /**<a name="line.237"></a> -<span class="sourceLineNo">238</span> * Called after the region is reported as closed to the master.<a name="line.238"></a> -<span class="sourceLineNo">239</span> * @param c the environment provided by the region server<a name="line.239"></a> -<span class="sourceLineNo">240</span> * @param abortRequested true if the region server is aborting<a name="line.240"></a> -<span class="sourceLineNo">241</span> */<a name="line.241"></a> -<span class="sourceLineNo">242</span> default void postClose(ObserverContext<RegionCoprocessorEnvironment> c, boolean abortRequested) {}<a name="line.242"></a> -<span class="sourceLineNo">243</span><a name="line.243"></a> -<span class="sourceLineNo">244</span> /**<a name="line.244"></a> -<span class="sourceLineNo">245</span> * Called before the client performs a Get<a name="line.245"></a> -<span class="sourceLineNo">246</span> * <p><a name="line.246"></a> -<span class="sourceLineNo">247</span> * Call CoprocessorEnvironment#bypass to skip default actions<a name="line.247"></a> -<span class="sourceLineNo">248</span> * <p><a name="line.248"></a> -<span class="sourceLineNo">249</span> * Call CoprocessorEnvironment#complete to skip any subsequent chained<a name="line.249"></a> -<span class="sourceLineNo">250</span> * coprocessors<a name="line.250"></a> -<span class="sourceLineNo">251</span> * @param c the environment provided by the region server<a name="line.251"></a> -<span class="sourceLineNo">252</span> * @param get the Get request<a name="line.252"></a> -<span class="sourceLineNo">253</span> * @param result The result to return to the client if default processing<a name="line.253"></a> -<span class="sourceLineNo">254</span> * is bypassed. Can be modified. Will not be used if default processing<a name="line.254"></a> -<span class="sourceLineNo">255</span> * is not bypassed.<a name="line.255"></a> -<span class="sourceLineNo">256</span> */<a name="line.256"></a> -<span class="sourceLineNo">257</span> default void preGetOp(ObserverContext<RegionCoprocessorEnvironment> c, Get get, List<Cell> result)<a name="line.257"></a> -<span class="sourceLineNo">258</span> throws IOException {}<a name="line.258"></a> -<span class="sourceLineNo">259</span><a name="line.259"></a> -<span class="sourceLineNo">260</span> /**<a name="line.260"></a> -<span class="sourceLineNo">261</span> * Called after the client performs a Get<a name="line.261"></a> -<span class="sourceLineNo">262</span> * <p><a name="line.262"></a> -<span class="sourceLineNo">263</span> * Call CoprocessorEnvironment#complete to skip any subsequent chained<a name="line.263"></a> -<span class="sourceLineNo">264</span> * coprocessors<a name="line.264"></a> -<span class="sourceLineNo">265</span> * <p><a name="line.265"></a> -<span class="sourceLineNo">266</span> * Note: Do not retain references to any Cells in 'result' beyond the life of this invocation.<a name="line.266"></a> -<span class="sourceLineNo">267</span> * If need a Cell reference for later use, copy the cell and use that.<a name="line.267"></a> -<span class="sourceLineNo">268</span> * @param c the environment provided by the region server<a name="line.268"></a> -<span class="sourceLineNo">269</span> * @param get the Get request<a name="line.269"></a> -<span class="sourceLineNo">270</span> * @param result the result to return to the client, modify as necessary<a name="line.270"></a> -<span class="sourceLineNo">271</span> */<a name="line.271"></a> -<span class="sourceLineNo">272</span> default void postGetOp(ObserverContext<RegionCoprocessorEnvironment> c, Get get,<a name="line.272"></a> -<span class="sourceLineNo">273</span> List<Cell> result) throws IOException {}<a name="line.273"></a> -<span class="sourceLineNo">274</span><a name="line.274"></a> -<span class="sourceLineNo">275</span> /**<a name="line.275"></a> -<span class="sourceLineNo">276</span> * Called before the client tests for existence using a Get.<a name="line.276"></a> -<span class="sourceLineNo">277</span> * <p><a name="line.277"></a> -<span class="sourceLineNo">278</span> * Call CoprocessorEnvironment#bypass to skip default actions<a name="line.278"></a> -<span class="sourceLineNo">279</span> * <p><a name="line.279"></a> -<span class="sourceLineNo">280</span> * Call CoprocessorEnvironment#complete to skip any subsequent chained<a name="line.280"></a> -<span class="sourceLineNo">281</span> * coprocessors<a name="line.281"></a> -<span class="sourceLineNo">282</span> * @param c the environment provided by the region server<a name="line.282"></a> -<span class="sourceLineNo">283</span> * @param get the Get request<a name="line.283"></a> -<span class="sourceLineNo">284</span> * @param exists the result returned by the region server<a name="line.284"></a> -<span class="sourceLineNo">285</span> * @return the value to return to the client if bypassing default processing<a name="line.285"></a> -<span class="sourceLineNo">286</span> */<a name="line.286"></a> -<span class="sourceLineNo">287</span> default boolean preExists(ObserverContext<RegionCoprocessorEnvironment> c, Get get,<a name="line.287"></a> -<span class="sourceLineNo">288</span> boolean exists) throws IOException {<a name="line.288"></a> -<span class="sourceLineNo">289</span> return exists;<a name="line.289"></a> -<span class="sourceLineNo">290</span> }<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> * Called after the client tests for existence using a Get.<a name="line.293"></a> -<span class="sourceLineNo">294</span> * <p><a name="line.294"></a> -<span class="sourceLineNo">295</span> * Call CoprocessorEnvironment#complete to skip any subsequent chained<a name="line.295"></a> -<span class="sourceLineNo">296</span> * coprocessors<a name="line.296"></a> -<span class="sourceLineNo">297</span> * @param c the environment provided by the region server<a name="line.297"></a> -<span class="sourceLineNo">298</span> * @param get the Get request<a name="line.298"></a> -<span class="sourceLineNo">299</span> * @param exists the result returned by the region server<a name="line.299"></a> -<span class="sourceLineNo">300</span> * @return the result to return to the client<a name="line.300"></a> -<span class="sourceLineNo">301</span> */<a name="line.301"></a> -<span class="sourceLineNo">302</span> default boolean postExists(ObserverContext<RegionCoprocessorEnvironment> c, Get get,<a name="line.302"></a> -<span class="sourceLineNo">303</span> boolean exists) throws IOException {<a name="line.303"></a> -<span class="sourceLineNo">304</span> return exists;<a name="line.304"></a> -<span class="sourceLineNo">305</span> }<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> * Called before the client stores a value.<a name="line.308"></a> -<span class="sourceLineNo">309</span> * <p><a name="line.309"></a> -<span class="sourceLineNo">310</span> * Call CoprocessorEnvironment#bypass to skip default actions<a name="line.310"></a> -<span class="sourceLineNo">311</span> * <p><a name="line.311"></a> -<span class="sourceLineNo">312</span> * Call CoprocessorEnvironment#complete to skip any subsequent chained<a name="line.312"></a> -<span class="sourceLineNo">313</span> * coprocessors<a name="line.313"></a> -<span class="sourceLineNo">314</span> * <p><a name="line.314"></a> -<span class="sourceLineNo">315</span> * Note: Do not retain references to any Cells in 'put' beyond the life of this invocation.<a name="line.315"></a> -<span class="sourceLineNo">316</span> * If need a Cell reference for later use, copy the cell and use that.<a name="line.316"></a> -<span class="sourceLineNo">317</span> * @param c the environment provided by the region server<a name="line.317"></a> -<span class="sourceLineNo">318</span> * @param put The Put object<a name="line.318"></a> -<span class="sourceLineNo">319</span> * @param edit The WALEdit object that will be written to the wal<a name="line.319"></a> -<span class="sourceLineNo">320</span> * @param durability Persistence guarantee for this Put<a name="line.320"></a> -<span class="sourceLineNo">321</span> */<a name="line.321"></a> -<span class="sourceLineNo">322</span> default void prePut(ObserverContext<RegionCoprocessorEnvironment> c, Put put, WALEdit edit,<a name="line.322"></a> -<span class="sourceLineNo">323</span> Durability durability) throws IOException {}<a name="line.323"></a> -<span class="sourceLineNo">324</span><a name="line.324"></a> -<span class="sourceLineNo">325</span> /**<a name="line.325"></a> -<span class="sourceLineNo">326</span> * Called after the client stores a value.<a name="line.326"></a> -<span class="sourceLineNo">327</span> * <p><a name="line.327"></a> -<span class="sourceLineNo">328</span> * Call CoprocessorEnvironment#complete to skip any subsequent chained<a name="line.328"></a> -<span class="sourceLineNo">329</span> * coprocessors<a name="line.329"></a> -<span class="sourceLineNo">330</span> * <p><a name="line.330"></a> -<span class="sourceLineNo">331</span> * Note: Do not retain references to any Cells in 'put' beyond the life of this invocation.<a name="line.331"></a> -<span class="sourceLineNo">332</span> * If need a Cell reference for later use, copy the cell and use that.<a name="line.332"></a> -<span class="sourceLineNo">333</span> * @param c the environment provided by the region server<a name="line.333"></a> -<span class="sourceLineNo">334</span> * @param put The Put object<a name="line.334"></a> -<span class="sourceLineNo">335</span> * @param edit The WALEdit object for the wal<a name="line.335"></a> -<span class="sourceLineNo">336</span> * @param durability Persistence guarantee for this Put<a name="line.336"></a> -<span class="sourceLineNo">337</span> */<a name="line.337"></a> -<span class="sourceLineNo">338</span> default void postPut(ObserverContext<RegionCoprocessorEnvironment> c, Put put, WALEdit edit,<a name="line.338"></a> -<span class="sourceLineNo">339</span> Durability durability) throws IOException {}<a name="line.339"></a> -<span class="sourceLineNo">340</span><a name="line.340"></a> -<span class="sourceLineNo">341</span> /**<a name="line.341"></a> -<span class="sourceLineNo">342</span> * Called before the client deletes a value.<a name="line.342"></a> -<span class="sourceLineNo">343</span> * <p><a name="line.343"></a> -<span class="sourceLineNo">344</span> * Call CoprocessorEnvironment#bypass to skip default actions<a name="line.344"></a> -<span class="sourceLineNo">345</span> * <p><a name="line.345"></a> -<span class="sourceLineNo">346</span> * Call CoprocessorEnvironment#complete to skip any subsequent chained<a name="line.346"></a> -<span class="sourceLineNo">347</span> * coprocessors<a name="line.347"></a> -<span class="sourceLineNo">348</span> * <p><a name="line.348"></a> -<span class="sourceLineNo">349</span> * Note: Do not retain references to any Cells in 'delete' beyond the life of this invocation.<a name="line.349"></a> -<span class="sourceLineNo">350</span> * If need a Cell reference for later use, copy the cell and use that.<a name="line.350"></a> -<span class="sourceLineNo">351</span> * @param c the environment provided by the region server<a name="line.351"></a> -<span class="sourceLineNo">352</span> * @param delete The Delete object<a name="line.352"></a> -<span class="sourceLineNo">353</span> * @param edit The WALEdit object for the wal<a name="line.353"></a> -<span class="sourceLineNo">354</span> * @param durability Persistence guarantee for this Delete<a name="line.354"></a> -<span class="sourceLineNo">355</span> */<a name="line.355"></a> -<span class="sourceLineNo">356</span> default void preDelete(ObserverContext<RegionCoprocessorEnvironment> c, Delete delete,<a name="line.356"></a> -<span class="sourceLineNo">357</span> WALEdit edit, Durability durability) throws IOException {}<a name="line.357"></a> -<span class="sourceLineNo">358</span><a name="line.358"></a> -<span class="sourceLineNo">359</span> /**<a name="line.359"></a> -<span class="sourceLineNo">360</span> * Called before the server updates the timestamp for version delete with latest timestamp.<a name="line.360"></a> -<span class="sourceLineNo">361</span> * <p><a name="line.361"></a> -<span class="sourceLineNo">362</span> * Call CoprocessorEnvironment#bypass to skip default actions<a name="line.362"></a> -<span class="sourceLineNo">363</span> * <p><a name="line.363"></a> -<span class="sourceLineNo">364</span> * Call CoprocessorEnvironment#complete to skip any subsequent chained coprocessors<a name="line.364"></a> -<span class="sourceLineNo">365</span> * @param c the environment provided by the region server<a name="line.365"></a> -<span class="sourceLineNo">366</span> * @param mutation - the parent mutation associated with this delete cell<a name="line.366"></a> -<span class="sourceLineNo">367</span> * @param cell - The deleteColumn with latest version cell<a name="line.367"></a> -<span class="sourceLineNo">368</span> * @param byteNow - timestamp bytes<a name="line.368"></a> -<span class="sourceLineNo">369</span> * @param get - the get formed using the current cell's row. Note that the get does not specify<a name="line.369"></a> -<span class="sourceLineNo">370</span> * the family and qualifier<a name="line.370"></a> -<span class="sourceLineNo">371</span> */<a name="line.371"></a> -<span class="sourceLineNo">372</span> default void prePrepareTimeStampForDeleteVersion(ObserverContext<RegionCoprocessorEnvironment> c,<a name="line.372"></a> -<span class="sourceLineNo">373</span> Mutation mutation, Cell cell, byte[] byteNow, Get get) throws IOException {}<a name="line.373"></a> -<span class="sourceLineNo">374</span><a name="line.374"></a> -<span class="sourceLineNo">375</span> /**<a name="line.375"></a> -<span class="sourceLineNo">376</span> * Called after the client deletes a value.<a name="line.376"></a> -<span class="sourceLineNo">377</span> * <p><a name="line.377"></a> -<span class="sourceLineNo">378</span> * Call CoprocessorEnvironment#complete to skip any subsequent chained<a name="line.378"></a> -<span class="sourceLineNo">379</span> * coprocessors<a name="line.379"></a> -<span class="sourceLineNo">380</span> * <p><a name="line.380"></a> -<span class="sourceLineNo">381</span> * Note: Do not retain references to any Cells in 'delete' beyond the life of this invocation.<a name="line.381"></a> -<span class="sourceLineNo">382</span> * If need a Cell reference for later use, copy the cell and use that.<a name="line.382"></a> -<span class="sourceLineNo">383</span> * @param c the environment provided by the region server<a name="line.383"></a> -<span class="sourceLineNo">384</span> * @param delete The Delete object<a name="line.384"></a> -<span class="sourceLineNo">385</span> * @param edit The WALEdit object for the wal<a name="line.385"></a> -<span class="sourceLineNo">386</span> * @param durability Persistence guarantee for this Delete<a name="line.386"></a> -<span class="sourceLineNo">387</span> */<a name="line.387"></a> -<span class="sourceLineNo">388</span> default void postDelete(ObserverContext<RegionCoprocessorEnvironment> c, Delete delete,<a name="line.388"></a> -<span class="sourceLineNo">389</span> WALEdit edit, Durability durability) throws IOException {}<a name="line.389"></a> -<span class="sourceLineNo">390</span><a name="line.390"></a> -<span class="sourceLineNo">391</span> /**<a name="line.391"></a> -<span class="sourceLineNo">392</span> * This will be called for every batch mutation operation happening at the server. This will be<a name="line.392"></a> -<span class="sourceLineNo">393</span> * called after acquiring the locks on the mutating rows and after applying the proper timestamp<a name="line.393"></a> -<span class="sourceLineNo">394</span> * for each Mutation at the server. The batch may contain Put/Delete. By setting OperationStatus<a name="line.394"></a> -<span class="sourceLineNo">395</span> * of Mutations ({@link MiniBatchOperationInProgress#setOperationStatus(int, OperationStatus)}),<a name="line.395"></a> -<span class="sourceLineNo">396</span> * {@link RegionObserver} can make Region to skip these Mutations.<a name="line.396"></a> -<span class="sourceLineNo">397</span> * <p><a name="line.397"></a> -<span class="sourceLineNo">398</span> * Note: Do not retain references to any Cells in Mutations beyond the life of this invocation.<a name="line.398"></a> -<span class="sourceLineNo">399</span> * If need a Cell reference for later use, copy the cell and use that.<a name="line.399"></a> -<span class="sourceLineNo">400</span> * @param c the environment provided by the region server<a name="line.400"></a> -<span class="sourceLineNo">401</span> * @param miniBatchOp batch of Mutations getting applied to region.<a name="line.401"></a> -<span class="sourceLineNo">402</span> */<a name="line.402"></a> -<span class="sourceLineNo">403</span> default void preBatchMutate(ObserverContext<RegionCoprocessorEnvironment> c,<a name="line.403"></a> -<span class="sourceLineNo">404</span> MiniBatchOperationInProgress<Mutation> miniBatchOp) throws IOException {}<a name="line.404"></a> -<span class="sourceLineNo">405</span><a name="line.405"></a> -<span class="sourceLineNo">406</span> /**<a name="line.406"></a> -<span class="sourceLineNo">407</span> * This will be called after applying a batch of Mutations on a region. The Mutations are added to<a name="line.407"></a> -<span class="sourceLineNo">408</span> * memstore and WAL. The difference of this one with<a name="line.408"></a> -<span class="sourceLineNo">409</span> * {@link #postPut(ObserverContext, Put, WALEdit, Durability) }<a name="line.409"></a> -<span class="sourceLineNo">410</span> * and {@link #postDelete(ObserverContext, Delete, WALEdit, Durability) } is<a name="line.410"></a> -<span class="sourceLineNo">411</span> * this hook will be executed before the mvcc transaction completion.<a name="line.411"></a> -<span class="sourceLineNo">412</span> * <p><a name="line.412"></a> -<span class="sourceLineNo">413</span> * Note: Do not retain references to any Cells in Mutations beyond the life of this invocation.<a name="line.413"></a> -<span class="sourceLineNo">414</span> * If need a Cell reference for later use, copy the cell and use that.<a name="line.414"></a> -<span class="sourceLineNo">415</span> * @param c the environment provided by the region server<a name="line.415"></a> -<span class="sourceLineNo">416</span> * @param miniBatchOp batch of 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class="sourceLineNo">426</span> */<a name="line.426"></a> -<span class="sourceLineNo">427</span> default void postStartRegionOperation(ObserverContext<RegionCoprocessorEnvironment> ctx,<a name="line.427"></a> -<span class="sourceLineNo">428</span> Operation operation) throws IOException {}<a name="line.428"></a> -<span class="sourceLineNo">429</span><a name="line.429"></a> -<span class="sourceLineNo">430</span> /**<a name="line.430"></a> -<span class="sourceLineNo">431</span> * Called after releasing read lock in {@link Region#closeRegionOperation()}.<a name="line.431"></a> -<span class="sourceLineNo">432</span> * @param ctx<a name="line.432"></a> -<span class="sourceLineNo">433</span> * @param operation<a name="line.433"></a> -<span class="sourceLineNo">434</span> */<a name="line.434"></a> -<span class="sourceLineNo">435</span> default void postCloseRegionOperation(ObserverContext<RegionCoprocessorEnvironment> ctx,<a name="line.435"></a> -<span class="sourceLineNo">436</span> Operation operation) throws IOException {}<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> * Called after the completion of batch put/delete and will be called even if the batch operation<a name="line.439"></a> -<span class="sourceLineNo">440</span> * fails.<a name="line.440"></a> -<span class="sourceLineNo">441</span> * <p><a name="line.441"></a> -<span class="sourceLineNo">442</span> * Note: Do not retain references to any Cells in Mutations beyond the life of this invocation.<a name="line.442"></a> -<span class="sourceLineNo">443</span> * If need a Cell reference for later use, copy the cell and use that.<a name="line.443"></a> -<span class="sourceLineNo">444</span> * @param ctx<a name="line.444"></a> -<span class="sourceLineNo">445</span> * @param miniBatchOp<a name="line.445"></a> -<span class="sourceLineNo">446</span> * @param success true 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class="sourceLineNo">492</span> * @param c the environment provided by the region server<a name="line.492"></a> -<span class="sourceLineNo">493</span> * @param row row to check<a name="line.493"></a> -<span class="sourceLineNo">494</span> * @param family column family<a name="line.494"></a> -<span class="sourceLineNo">495</span> * @param qualifier column qualifier<a name="line.495"></a> -<span class="sourceLineNo">496</span> * @param op the comparison operation<a name="line.496"></a> -<span class="sourceLineNo">497</span> * @param comparator the comparator<a name="line.497"></a> -<span class="sourceLineNo">498</span> * @param put data to put if check succeeds<a name="line.498"></a> -<span class="sourceLineNo">499</span> * @param result<a name="line.499"></a> -<span class="sourceLineNo">500</span> * @return the return value to return to client if bypassing default<a name="line.500"></a> -<span class="sourceLineNo">501</span> * processing<a name="line.501"></a> -<span class="sourceLineNo">502</span> */<a name="line.502"></a> -<span class="sourceLineNo">503</span> default boolean preCheckAndPutAfterRowLock(ObserverContext<RegionCoprocessorEnvironment> c,<a name="line.503"></a> -<span class="sourceLineNo">504</span> byte[] row, byte[] family, byte[] qualifier, CompareOperator op,<a name="line.504"></a> -<span class="sourceLineNo">505</span> ByteArrayComparable comparator, Put put, boolean result) throws IOException {<a name="line.505"></a> -<span class="sourceLineNo">506</span> return result;<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> /**<a name="line.509"></a> -<span class="sourceLineNo">510</span> * Called after checkAndPut<a name="line.510"></a> -<span class="sourceLineNo">511</span> * <p><a name="line.511"></a> -<span class="sourceLineNo">512</span> * Call CoprocessorEnvironment#complete to skip any 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class="sourceLineNo">542</span> * If need a Cell reference for later use, copy the cell and use that.<a name="line.542"></a> -<span class="sourceLineNo">543</span> * @param c the environment provided by the region server<a name="line.543"></a> -<span class="sourceLineNo">544</span> * @param row row to check<a name="line.544"></a> -<span class="sourceLineNo">545</span> * @param family column family<a name="line.545"></a> -<span class="sourceLineNo">546</span> * @param qualifier column qualifier<a name="line.546"></a> -<span class="sourceLineNo">547</span> * @param op the comparison operation<a name="line.547"></a> -<span class="sourceLineNo">548</span> * @param comparator the comparator<a name="line.548"></a> -<span class="sourceLineNo">549</span> * @param delete delete to commit if check succeeds<a name="line.549"></a> -<span class="sourceLineNo">550</span> * @param result<a name="line.550"></a> -<span class="sourceLineNo">551</span> * @return the value to return to client if bypassing 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class="sourceLineNo">562</span> * <b>Note:</b> Caution to be taken for not doing any long time operation in this hook.<a name="line.562"></a> -<span class="sourceLineNo">563</span> * Row will be locked for longer time. 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Append but after acquiring rowlock.<a name="line.633"></a> -<span class="sourceLineNo">634</span> * <p><a name="line.634"></a> -<span class="sourceLineNo">635</span> * <b>Note:</b> Caution to be taken for not doing any long time operation in this hook.<a name="line.635"></a> -<span class="sourceLineNo">636</span> * Row will be locked for longer time. Trying to acquire lock on another row, within this,<a name="line.636"></a> -<span class="sourceLineNo">637</span> * can lead to potential deadlock.<a name="line.637"></a> -<span class="sourceLineNo">638</span> * <p><a name="line.638"></a> -<span class="sourceLineNo">639</span> * Call CoprocessorEnvironment#bypass to skip default actions<a name="line.639"></a> -<span class="sourceLineNo">640</span> * <p><a name="line.640"></a> -<span class="sourceLineNo">641</span> * Call CoprocessorEnvironment#complete to skip any subsequent chained<a name="line.641"></a> -<span class="sourceLineNo">642</span> * coprocessors<a name="line.642"></a> -<span class="sourceLineNo">643</span> * <p><a name="line.643"></a> -<span class="sourceLineNo">644</span> * Note: Do not retain references to any Cells in 'append' beyond the life of this invocation.<a name="line.644"></a> -<span class="sourceLineNo">645</span> * If need a Cell reference for later use, copy the cell and use that.<a name="line.645"></a> -<span class="sourceLineNo">646</span> * @param c the environment provided by the region server<a name="line.646"></a> -<span class="sourceLineNo">647</span> * @param append Append object<a name="line.647"></a> -<span class="sourceLineNo">648</span> * @return result to return to the client if bypassing default processing<a name="line.648"></a> -<span class="sourceLineNo">649</span> */<a name="line.649"></a> -<span class="sourceLineNo">650</span> default Result preAppendAfterRowLock(ObserverContext<RegionCoprocessorEnvironment> c,<a name="line.650"></a> -<span class="sourceLineNo">651</span> Append append) throws IOException {<a name="line.651"></a> -<span class="sourceLineNo">652</span> return null;<a name="line.652"></a> -<span class="sourceLineNo">653</span> }<a name="line.653"></a> -<span class="sourceLineNo">654</span><a name="line.654"></a> -<span class="sourceLineNo">655</span> /**<a name="line.655"></a> -<span class="sourceLineNo">656</span> * Called after Append<a name="line.656"></a> -<span class="sourceLineNo">657</span> * <p><a name="line.657"></a> -<span class="sourceLineNo">658</span> * Call CoprocessorEnvironment#complete to skip any subsequent chained<a name="line.658"></a> -<span class="sourceLineNo">659</span> * coprocessors<a name="line.659"></a> -<span class="sourceLineNo">660</span> * <p><a name="line.660"></a> -<span class="sourceLineNo">661</span> * Note: Do not retain references to any Cells in 'append' beyond the life of this invocation.<a name="line.661"></a> -<span class="sourceLineNo">662</span> * If need a Cell reference for later use, copy the cell and use that.<a name="line.662"></a> -<span class="sourceLineNo">663</span> * @param c the environment provided by the region server<a name="line.663"></a> -<span class="sourceLineNo">664</span> * @param append Append object<a name="line.664"></a> -<span class="sourceLineNo">665</span> * @param result the result returned by increment<a name="line.665"></a> -<span class="sourceLineNo">666</span> * @return the result to return to the client<a name="line.666"></a> -<span class="sourceLineNo">667</span> */<a name="line.667"></a> -<span class="sourceLineNo">668</span> default Result postAppend(ObserverContext<RegionCoprocessorEnvironment> c, Append append,<a name="line.668"></a> -<span class="sourceLineNo">669</span> Result result) throws IOException {<a name="line.669"></a> -<span class="sourceLineNo">670</span> return result;<a name="line.670"></a> -<span class="sourceLineNo">671</span> }<a name="line.671"></a> -<span class="sourceLineNo">672</span><a name="line.672"></a> -<span class="sourceLineNo">673</span> /**<a name="line.673"></a> -<span class="sourceLineNo">674</span> * Called before Increment.<a name="line.674"></a> -<span class="sourceLineNo">675</span> * <p><a name="line.675"></a> -<span class="sourceLineNo">676</span> * Call CoprocessorEnvironment#bypass to skip default actions<a name="line.676"></a> -<span class="sourceLineNo">677</span> * <p><a name="line.677"></a> -<span class="sourceLineNo">678</span> * Call CoprocessorEnvironment#complete to skip any subsequent chained<a name="line.678"></a> -<span class="sourceLineNo">679</span> * coprocessors<a name="line.679"></a> -<span class="sourceLineNo">680</span> * <p><a name="line.680"></a> -<span class="sourceLineNo">681</span> * Note: Do not retain references to any Cells in 'increment' beyond the life of this invocation.<a name="line.681"></a> -<span class="sourceLineNo">682</span> * If need a Cell reference for later use, copy the cell and use that.<a name="line.682"></a> -<span class="sourceLineNo">683</span> * @param c the environment provided by the region server<a name="line.683"></a> -<span class="sourceLineNo">684</span> * @param increment increment object<a name="line.684"></a> -<span class="sourceLineNo">685</span> * @return result to return to the client if bypassing default processing<a name="line.685"></a> -<span class="sourceLineNo">686</span> */<a name="line.686"></a> -<span class="sourceLineNo">687</span> default Result preIncrement(ObserverContext<RegionCoprocessorEnvironment> c, Increment increment)<a name="line.687"></a> -<span class="sourceLineNo">688</span> throws IOException {<a name="line.688"></a> -<span class="sourceLineNo">689</span> return null;<a name="line.689"></a> -<span class="sourceLineNo">690</span> }<a name="line.690"></a> -<span class="sourceLineNo">691</span><a name="line.691"></a> -<span class="sourceLineNo">692</span> /**<a name="line.692"></a> -<span class="sourceLineNo">693</span> * Called before Increment but after acquiring rowlock.<a name="line.693"></a> -<span class="sourceLineNo">694</span> * <p><a name="line.694"></a> -<span class="sourceLineNo">695</span> * <b>Note:</b> Caution to be taken for not doing any long time operation in this hook.<a name="line.695"></a> -<span class="sourceLineNo">696</span> * Row will be locked for longer time. Trying to acquire lock on another row, within this,<a name="line.696"></a> -<span class="sourceLineNo">697</span> * can lead to potential deadlock.<a name="line.697"></a> -<span class="sourceLineNo">698</span> * <p><a name="line.698"></a> -<span class="sourceLineNo">699</span> * Call CoprocessorEnvironment#bypass to skip default actions<a name="line.699"></a> -<span class="sourceLineNo">700</span> * <p><a name="line.700"></a> -<span class="sourceLineNo">701</span> * Call CoprocessorEnvironment#complete to skip any subsequent chained coprocessors<a name="line.701"></a> -<span class="sourceLineNo">702</span> * <p><a name="line.702"></a> -<span class="sourceLineNo">703</span> * Note: Do not retain references to any Cells in 'increment' beyond the life of this invocation.<a name="line.703"></a> -<span class="sourceLineNo">704</span> * If need a Cell reference for later use, copy the cell and use that.<a name="line.704"></a> -<span class="sourceLineNo">705</span> *<a name="line.705"></a> -<span class="sourceLineNo">706</span> * @param c<a name="line.706"></a> -<span class="sourceLineNo">707</span> * the environment provided by the region server<a name="line.707"></a> -<span class="sourceLineNo">708</span> * @param increment<a name="line.708"></a> -<span class="sourceLineNo">709</span> * increment object<a name="line.709"></a> -<span class="sourceLineNo">710</span> * @return result to return to the client if bypassing default processing<a name="line.710"></a> -<span class="sourceLineNo">711</span> * if an error occurred on the coprocessor<a name="line.711"></a> -<span class="sourceLineNo">712</span> */<a name="line.712"></a> -<span class="sourceLineNo">713</span> default Result preIncrementAfterRowLock(ObserverContext<RegionCoprocessorEnvironment> c,<a name="line.713"></a> -<span class="sourceLineNo">714</span> Increment increment) throws IOException {<a name="line.714"></a> -<span class="sourceLineNo">715</span> return null;<a name="line.715"></a> -<span class="sourceLineNo">716</span> }<a name="line.716"></a> -<span class="sourceLineNo">717</span><a name="line.717"></a> -<span class="sourceLineNo">718</span> /**<a name="line.718"></a> -<span class="sourceLineNo">719</span> * Called after increment<a name="line.719"></a> -<span class="sourceLineNo">720</span> * <p><a name="line.720"></a> -<span class="sourceLineNo">721</span> * Call CoprocessorEnvironment#complete to skip any subsequent chained<a name="line.721"></a> -<span class="sourceLineNo">722</span> * coprocessors<a name="line.722"></a> -<span class="sourceLineNo">723</span> * <p><a name="line.723"></a> -<span class="sourceLineNo">724</span> * Note: Do not retain references to any Cells in 'increment' beyond the life of this invocation.<a name="line.724"></a> -<span class="sourceLineNo">725</span> * If need a Cell reference for later use, copy the cell and use that.<a name="line.725"></a> -<span class="sourceLineNo">726</span> * @param c the environment provided by the region server<a name="line.726"></a> -<span class="sourceLineNo">727</span> * @param increment increment object<a name="line.727"></a> -<span class="sourceLineNo">728</span> * @param result the result returned by increment<a name="line.728"></a> -<span class="sourceLineNo">729</span> * @return the result to return to the client<a name="line.729"></a> -<span class="sourceLineNo">730</span> */<a name="line.730"></a> -<span class="sourceLineNo">731</span> default Result postIncrement(ObserverContext<RegionCoprocessorEnvironment> c, Increment increment,<a name="line.731"></a> -<span class="sourceLineNo">732</span> Result result) throws IOException {<a name="line.732"></a> -<span class="sourceLineNo">733</span> return result;<a name="line.733"></a> -<span class="sourceLineNo">734</span> }<a name="line.734"></a> -<span class="sourceLineNo">735</span><a name="line.735"></a> -<span class="sourceLineNo">736</span> /**<a name="line.736"></a> -<span class="sourceLineNo">737</span> * Called before the client opens a new scanner.<a name="line.737"></a> -<span class="sourceLineNo">738</span> * <p><a name="line.738"></a> -<span class="sourceLineNo">739</span> * Call CoprocessorEnvironment#bypass to skip default actions<a name="line.739"></a> -<span class="sourceLineNo">740</span> * <p><a name="line.740"></a> -<span class="sourceLineNo">741</span> * Call CoprocessorEnvironment#complete to skip any subsequent chained<a name="line.741"></a> -<span class="sourceLineNo">742</span> * coprocessors<a name="line.742"></a> -<span class="sourceLineNo">743</span> * <p><a name="line.743"></a> -<span class="sourceLineNo">744</span> * Note: Do not retain references to any Cells returned by scanner, beyond the life of this<a name="line.744"></a> -<span class="sourceLineNo">745</span> * invocation. If need a Cell reference for later use, copy the cell and use that.<a name="line.745"></a> -<span class="sourceLineNo">746</span> * @param c the environment provided by the region server<a name="line.746"></a> -<span class="sourceLineNo">747</span> * @param scan the Scan specification<a name="line.747"></a> -<span class="sourceLineNo">748</span> * @param s if not null, the base scanner<a name="line.748"></a> -<span class="sourceLineNo">749</span> * @return an RegionScanner instance to use instead of the base scanner if<a name="line.749"></a> -<span class="sourceLineNo">750</span> * overriding default behavior, null otherwise<a name="line.750"></a> -<span class="sourceLineNo">751</span> */<a name="line.751"></a> -<span class="sourceLineNo">752</span> default RegionScanner preScannerOpen(ObserverContext<RegionCoprocessorEnvironment> c, Scan scan,<a name="line.752"></a> -<span class="sourceLineNo">753</span> RegionScanner s) throws IOException {<a name="line.753"></a> -<span class="sourceLineNo">754</span> return s;<a name="line.754"></a> -<span class="sourceLineNo">755</span> }<a name="line.755"></a> -<span class="sourceLineNo">756</span><a name="line.756"></a> -<span class="sourceLineNo">757</span> /**<a name="line.757"></a> -<span class="sourceLineNo">758</span> * Called after the client opens a new scanner.<a name="line.758"></a> -<span class="sourceLineNo">759</span> * <p><a name="line.759"></a> -<span class="sourceLineNo">760</span> * Call CoprocessorEnvironment#complete to skip any subsequent chained<a name="line.760"></a> -<span class="sourceLineNo">761</span> * coprocessors<a name="line.761"></a> -<span class="sourceLineNo">762</span> * <p><a name="line.762"></a> -<span class="sourceLineNo">763</span> * Note: Do not retain references to any Cells returned by scanner, beyond the life of this<a name="line.763"></a> -<span class="sourceLineNo">764</span> * invocation. If need a Cell reference for later use, copy the cell and use that.<a name="line.764"></a> -<span class="sourceLineNo">765</span> * @param c the environment provided by the region server<a name="line.765"></a> -<span class="sourceLineNo">766</span> * @param scan the Scan specification<a name="line.766"></a> -<span class="sourceLineNo">767</span> * @param s if not null, the base scanner<a name="line.767"></a> -<span class="sourceLineNo">768</span> * @return the scanner instance to use<a name="line.768"></a> -<span class="sourceLineNo">769</span> */<a name="line.769"></a> -<span class="sourceLineNo">770</span> default RegionScanner postScannerOpen(ObserverContext<RegionCoprocessorEnvironment> c, Scan scan,<a name="line.770"></a> -<span class="sourceLineNo">771</span> RegionScanner s) throws IOException {<a name="line.771"></a> -<span class="sourceLineNo">772</span> return s;<a name="line.772"></a> -<span class="sourceLineNo">773</span> }<a name="line.773"></a> -<span class="sourceLineNo">774</span><a name="line.774"></a> -<span class="sourceLineNo">775</span> /**<a name="line.775"></a> -<span class="sourceLineNo">776</span> * Called before the client asks for the next row on a scanner.<a name="line.776"></a> -<span class="sourceLineNo">777</span> * <p><a name="line.777"></a> -<span class="sourceLineNo">778</span> * Call CoprocessorEnvironment#bypass to skip default actions<a name="line.778"></a> -<span class="sourceLineNo">779</span> * <p><a name="line.779"></a> -<span class="sourceLineNo">780</span> * Call CoprocessorEnvironment#complete to skip any subsequent chained<a name="line.780"></a> -<span class="sourceLineNo">781</span> * coprocessors<a name="line.781"></a> -<span class="sourceLineNo">782</span> * <p><a name="line.782"></a> -<span class="sourceLineNo">783</span> * Note: Do not retain references to any Cells returned by scanner, beyond the life of this<a name="line.783"></a> -<span class="sourceLineNo">784</span> * invocation. If need a Cell reference for later use, copy the cell and use that.<a name="line.784"></a> -<span class="sourceLineNo">785</span> * @param c the environment provided by the region server<a name="line.785"></a> -<span class="sourceLineNo">786</span> * @param s the scanner<a name="line.786"></a> -<span class="sourceLineNo">787</span> * @param result The result to return to the client if default processing<a name="line.787"></a> -<span class="sourceLineNo">788</span> * is bypassed. Can be modified. Will not be returned if default processing<a name="line.788"></a> -<span class="sourceLineNo">789</span> * is not bypassed.<a name="line.789"></a> -<span class="sourceLineNo">790</span> * @param limit the maximum number of results to return<a name="line.790"></a> -<span class="sourceLineNo">791</span> * @param hasNext the 'has more' indication<a name="line.791"></a> -<span class="sourceLineNo">792</span> * @return 'has more' indication that should be sent to client<a name="line.792"></a> -<span class="sourceLineNo">793</span> */<a name="line.793"></a> -<span class="sourceLineNo">794</span> default boolean preScannerNext(ObserverContext<RegionCoprocessorEnvironment> c, InternalScanner s,<a name="line.794"></a> -<span class="sourceLineNo">795</span> List<Result> result, int limit, boolean hasNext) throws IOException {<a name="line.795"></a> -<span class="sourceLineNo">796</span> return hasNext;<a name="line.796"></a> -<span class="sourceLineNo">797</span> }<a name="line.797"></a> -<span class="sourceLineNo">798</span><a name="line.798"></a> -<span class="sourceLineNo">799</span> /**<a name="line.799"></a> -<span class="sourceLineNo">800</span> * Called after the client asks for the next row on a scanner.<a name="line.800"></a> -<span class="sourceLineNo">801</span> * <p><a name="line.801"></a> -<span class="sourceLineNo">802</span> * Call CoprocessorEnvironment#complete to skip any subsequent chained<a name="line.802"></a> -<span class="sourceLineNo">803</span> * coprocessors<a name="line.803"></a> -<span class="sourceLineNo">804</span> * <p><a name="line.804"></a> -<span class="sourceLineNo">805</span> * Note: Do not retain references to any Cells returned by scanner, beyond the life of this<a name="line.805"></a> -<span class="sourceLineNo">806</span> * invocation. If need a Cell reference for later use, copy the cell and use that.<a name="line.806"></a> -<span class="sourceLineNo">807</span> * @par
<TRUNCATED>
