http://git-wip-us.apache.org/repos/asf/hbase-site/blob/d2b28a1a/devapidocs/src-html/org/apache/hadoop/hbase/PrivateCellUtil.EmptyByteBufferCell.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/PrivateCellUtil.EmptyByteBufferCell.html b/devapidocs/src-html/org/apache/hadoop/hbase/PrivateCellUtil.EmptyByteBufferCell.html index 3400507..2baa140 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/PrivateCellUtil.EmptyByteBufferCell.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/PrivateCellUtil.EmptyByteBufferCell.html @@ -28,3034 +28,2926 @@ <span class="sourceLineNo">020</span>import static org.apache.hadoop.hbase.HConstants.EMPTY_BYTE_ARRAY;<a name="line.20"></a> <span class="sourceLineNo">021</span>import static org.apache.hadoop.hbase.Tag.TAG_LENGTH_SIZE;<a name="line.21"></a> <span class="sourceLineNo">022</span><a name="line.22"></a> -<span class="sourceLineNo">023</span>import com.google.common.annotations.VisibleForTesting;<a name="line.23"></a> -<span class="sourceLineNo">024</span><a name="line.24"></a> -<span class="sourceLineNo">025</span>import java.io.DataOutput;<a name="line.25"></a> -<span class="sourceLineNo">026</span>import java.io.DataOutputStream;<a name="line.26"></a> -<span class="sourceLineNo">027</span>import java.io.IOException;<a name="line.27"></a> -<span class="sourceLineNo">028</span>import java.io.OutputStream;<a name="line.28"></a> -<span class="sourceLineNo">029</span>import java.math.BigDecimal;<a name="line.29"></a> -<span class="sourceLineNo">030</span>import java.nio.ByteBuffer;<a name="line.30"></a> -<span class="sourceLineNo">031</span>import java.util.ArrayList;<a name="line.31"></a> -<span class="sourceLineNo">032</span>import java.util.Iterator;<a name="line.32"></a> -<span class="sourceLineNo">033</span>import java.util.List;<a name="line.33"></a> -<span class="sourceLineNo">034</span>import java.util.Optional;<a name="line.34"></a> -<span class="sourceLineNo">035</span><a name="line.35"></a> -<span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.KeyValue.Type;<a name="line.36"></a> -<span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.filter.ByteArrayComparable;<a name="line.37"></a> -<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.io.HeapSize;<a name="line.38"></a> -<span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.io.TagCompressionContext;<a name="line.39"></a> -<span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.io.util.Dictionary;<a name="line.40"></a> -<span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.io.util.StreamUtils;<a name="line.41"></a> -<span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.util.ByteBufferUtils;<a name="line.42"></a> -<span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.util.ByteRange;<a name="line.43"></a> -<span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.44"></a> -<span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.util.ClassSize;<a name="line.45"></a> -<span class="sourceLineNo">046</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.46"></a> -<span class="sourceLineNo">047</span><a name="line.47"></a> -<span class="sourceLineNo">048</span><a name="line.48"></a> -<span class="sourceLineNo">049</span>/**<a name="line.49"></a> -<span class="sourceLineNo">050</span> * Utility methods helpful slinging {@link Cell} instances. It has more powerful and<a name="line.50"></a> -<span class="sourceLineNo">051</span> * rich set of APIs than those in {@link CellUtil} for internal usage.<a name="line.51"></a> -<span class="sourceLineNo">052</span> */<a name="line.52"></a> -<span class="sourceLineNo">053</span>@InterfaceAudience.Private<a name="line.53"></a> -<span class="sourceLineNo">054</span>public final class PrivateCellUtil {<a name="line.54"></a> -<span class="sourceLineNo">055</span><a name="line.55"></a> -<span class="sourceLineNo">056</span> /**<a name="line.56"></a> -<span class="sourceLineNo">057</span> * Private constructor to keep this class from being instantiated.<a name="line.57"></a> -<span class="sourceLineNo">058</span> */<a name="line.58"></a> -<span class="sourceLineNo">059</span> private PrivateCellUtil() {<a name="line.59"></a> -<span class="sourceLineNo">060</span> }<a name="line.60"></a> +<span class="sourceLineNo">023</span>import java.io.DataOutput;<a name="line.23"></a> +<span class="sourceLineNo">024</span>import java.io.DataOutputStream;<a name="line.24"></a> +<span class="sourceLineNo">025</span>import java.io.IOException;<a name="line.25"></a> +<span class="sourceLineNo">026</span>import java.io.OutputStream;<a name="line.26"></a> +<span class="sourceLineNo">027</span>import java.math.BigDecimal;<a name="line.27"></a> +<span class="sourceLineNo">028</span>import java.nio.ByteBuffer;<a name="line.28"></a> +<span class="sourceLineNo">029</span>import java.util.ArrayList;<a name="line.29"></a> +<span class="sourceLineNo">030</span>import java.util.Iterator;<a name="line.30"></a> +<span class="sourceLineNo">031</span>import java.util.List;<a name="line.31"></a> +<span class="sourceLineNo">032</span>import java.util.Optional;<a name="line.32"></a> +<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.KeyValue.Type;<a name="line.33"></a> +<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.filter.ByteArrayComparable;<a name="line.34"></a> +<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.io.HeapSize;<a name="line.35"></a> +<span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.io.TagCompressionContext;<a name="line.36"></a> +<span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.io.util.Dictionary;<a name="line.37"></a> +<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.io.util.StreamUtils;<a name="line.38"></a> +<span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.util.ByteBufferUtils;<a name="line.39"></a> +<span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.util.ByteRange;<a name="line.40"></a> +<span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.41"></a> +<span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.util.ClassSize;<a name="line.42"></a> +<span class="sourceLineNo">043</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.43"></a> +<span class="sourceLineNo">044</span><a name="line.44"></a> +<span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.shaded.com.google.common.annotations.VisibleForTesting;<a name="line.45"></a> +<span class="sourceLineNo">046</span><a name="line.46"></a> +<span class="sourceLineNo">047</span>/**<a name="line.47"></a> +<span class="sourceLineNo">048</span> * Utility methods helpful slinging {@link Cell} instances. It has more powerful and<a name="line.48"></a> +<span class="sourceLineNo">049</span> * rich set of APIs than those in {@link CellUtil} for internal usage.<a name="line.49"></a> +<span class="sourceLineNo">050</span> */<a name="line.50"></a> +<span class="sourceLineNo">051</span>@InterfaceAudience.Private<a name="line.51"></a> +<span class="sourceLineNo">052</span>public final class PrivateCellUtil {<a name="line.52"></a> +<span class="sourceLineNo">053</span><a name="line.53"></a> +<span class="sourceLineNo">054</span> /**<a name="line.54"></a> +<span class="sourceLineNo">055</span> * Private constructor to keep this class from being instantiated.<a name="line.55"></a> +<span class="sourceLineNo">056</span> */<a name="line.56"></a> +<span class="sourceLineNo">057</span> private PrivateCellUtil() {<a name="line.57"></a> +<span class="sourceLineNo">058</span> }<a name="line.58"></a> +<span class="sourceLineNo">059</span><a name="line.59"></a> +<span class="sourceLineNo">060</span> /******************* ByteRange *******************************/<a name="line.60"></a> <span class="sourceLineNo">061</span><a name="line.61"></a> -<span class="sourceLineNo">062</span> /******************* ByteRange *******************************/<a name="line.62"></a> -<span class="sourceLineNo">063</span><a name="line.63"></a> -<span class="sourceLineNo">064</span> public static ByteRange fillRowRange(Cell cell, ByteRange range) {<a name="line.64"></a> -<span class="sourceLineNo">065</span> return range.set(cell.getRowArray(), cell.getRowOffset(), cell.getRowLength());<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> public static ByteRange fillFamilyRange(Cell cell, ByteRange range) {<a name="line.68"></a> -<span class="sourceLineNo">069</span> return range.set(cell.getFamilyArray(), cell.getFamilyOffset(), cell.getFamilyLength());<a name="line.69"></a> -<span class="sourceLineNo">070</span> }<a name="line.70"></a> -<span class="sourceLineNo">071</span><a name="line.71"></a> -<span class="sourceLineNo">072</span> public static ByteRange fillQualifierRange(Cell cell, ByteRange range) {<a name="line.72"></a> -<span class="sourceLineNo">073</span> return range.set(cell.getQualifierArray(), cell.getQualifierOffset(),<a name="line.73"></a> -<span class="sourceLineNo">074</span> cell.getQualifierLength());<a name="line.74"></a> -<span class="sourceLineNo">075</span> }<a name="line.75"></a> -<span class="sourceLineNo">076</span><a name="line.76"></a> -<span class="sourceLineNo">077</span> public static ByteRange fillValueRange(Cell cell, ByteRange range) {<a name="line.77"></a> -<span class="sourceLineNo">078</span> return range.set(cell.getValueArray(), cell.getValueOffset(), cell.getValueLength());<a name="line.78"></a> -<span class="sourceLineNo">079</span> }<a name="line.79"></a> -<span class="sourceLineNo">080</span><a name="line.80"></a> -<span class="sourceLineNo">081</span> public static ByteRange fillTagRange(Cell cell, ByteRange range) {<a name="line.81"></a> -<span class="sourceLineNo">082</span> return range.set(cell.getTagsArray(), cell.getTagsOffset(), cell.getTagsLength());<a name="line.82"></a> -<span class="sourceLineNo">083</span> }<a name="line.83"></a> +<span class="sourceLineNo">062</span> public static ByteRange fillRowRange(Cell cell, ByteRange range) {<a name="line.62"></a> +<span class="sourceLineNo">063</span> return range.set(cell.getRowArray(), cell.getRowOffset(), cell.getRowLength());<a name="line.63"></a> +<span class="sourceLineNo">064</span> }<a name="line.64"></a> +<span class="sourceLineNo">065</span><a name="line.65"></a> +<span class="sourceLineNo">066</span> public static ByteRange fillFamilyRange(Cell cell, ByteRange range) {<a name="line.66"></a> +<span class="sourceLineNo">067</span> return range.set(cell.getFamilyArray(), cell.getFamilyOffset(), cell.getFamilyLength());<a name="line.67"></a> +<span class="sourceLineNo">068</span> }<a name="line.68"></a> +<span class="sourceLineNo">069</span><a name="line.69"></a> +<span class="sourceLineNo">070</span> public static ByteRange fillQualifierRange(Cell cell, ByteRange range) {<a name="line.70"></a> +<span class="sourceLineNo">071</span> return range.set(cell.getQualifierArray(), cell.getQualifierOffset(),<a name="line.71"></a> +<span class="sourceLineNo">072</span> cell.getQualifierLength());<a name="line.72"></a> +<span class="sourceLineNo">073</span> }<a name="line.73"></a> +<span class="sourceLineNo">074</span><a name="line.74"></a> +<span class="sourceLineNo">075</span> public static ByteRange fillValueRange(Cell cell, ByteRange range) {<a name="line.75"></a> +<span class="sourceLineNo">076</span> return range.set(cell.getValueArray(), cell.getValueOffset(), cell.getValueLength());<a name="line.76"></a> +<span class="sourceLineNo">077</span> }<a name="line.77"></a> +<span class="sourceLineNo">078</span><a name="line.78"></a> +<span class="sourceLineNo">079</span> public static ByteRange fillTagRange(Cell cell, ByteRange range) {<a name="line.79"></a> +<span class="sourceLineNo">080</span> return range.set(cell.getTagsArray(), cell.getTagsOffset(), cell.getTagsLength());<a name="line.80"></a> +<span class="sourceLineNo">081</span> }<a name="line.81"></a> +<span class="sourceLineNo">082</span><a name="line.82"></a> +<span class="sourceLineNo">083</span> /********************* misc *************************************/<a name="line.83"></a> <span class="sourceLineNo">084</span><a name="line.84"></a> -<span class="sourceLineNo">085</span> /********************* misc *************************************/<a name="line.85"></a> -<span class="sourceLineNo">086</span><a name="line.86"></a> -<span class="sourceLineNo">087</span> public static byte getRowByte(Cell cell, int index) {<a name="line.87"></a> -<span class="sourceLineNo">088</span> if (cell instanceof ByteBufferCell) {<a name="line.88"></a> -<span class="sourceLineNo">089</span> return ((ByteBufferCell) cell).getRowByteBuffer()<a name="line.89"></a> -<span class="sourceLineNo">090</span> .get(((ByteBufferCell) cell).getRowPosition() + index);<a name="line.90"></a> -<span class="sourceLineNo">091</span> }<a name="line.91"></a> -<span class="sourceLineNo">092</span> return cell.getRowArray()[cell.getRowOffset() + index];<a name="line.92"></a> -<span class="sourceLineNo">093</span> }<a name="line.93"></a> -<span class="sourceLineNo">094</span><a name="line.94"></a> -<span class="sourceLineNo">095</span> public static byte getQualifierByte(Cell cell, int index) {<a name="line.95"></a> -<span class="sourceLineNo">096</span> if (cell instanceof ByteBufferCell) {<a name="line.96"></a> -<span class="sourceLineNo">097</span> return ((ByteBufferCell) cell).getQualifierByteBuffer()<a name="line.97"></a> -<span class="sourceLineNo">098</span> .get(((ByteBufferCell) cell).getQualifierPosition() + index);<a name="line.98"></a> -<span class="sourceLineNo">099</span> }<a name="line.99"></a> -<span class="sourceLineNo">100</span> return cell.getQualifierArray()[cell.getQualifierOffset() + index];<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> public static ByteBuffer getValueBufferShallowCopy(Cell cell) {<a name="line.103"></a> -<span class="sourceLineNo">104</span> ByteBuffer buffer =<a name="line.104"></a> -<span class="sourceLineNo">105</span> ByteBuffer.wrap(cell.getValueArray(), cell.getValueOffset(), cell.getValueLength());<a name="line.105"></a> -<span class="sourceLineNo">106</span> return buffer;<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> /**<a name="line.109"></a> -<span class="sourceLineNo">110</span> * @return A new cell which is having the extra tags also added to it.<a name="line.110"></a> -<span class="sourceLineNo">111</span> */<a name="line.111"></a> -<span class="sourceLineNo">112</span> public static Cell createCell(Cell cell, List<Tag> tags) {<a name="line.112"></a> -<span class="sourceLineNo">113</span> return createCell(cell, TagUtil.fromList(tags));<a name="line.113"></a> -<span class="sourceLineNo">114</span> }<a name="line.114"></a> -<span class="sourceLineNo">115</span><a name="line.115"></a> -<span class="sourceLineNo">116</span> /**<a name="line.116"></a> -<span class="sourceLineNo">117</span> * @return A new cell which is having the extra tags also added to it.<a name="line.117"></a> -<span class="sourceLineNo">118</span> */<a name="line.118"></a> -<span class="sourceLineNo">119</span> public static Cell createCell(Cell cell, byte[] tags) {<a name="line.119"></a> -<span class="sourceLineNo">120</span> if (cell instanceof ByteBufferCell) {<a name="line.120"></a> -<span class="sourceLineNo">121</span> return new TagRewriteByteBufferCell((ByteBufferCell) cell, tags);<a name="line.121"></a> -<span class="sourceLineNo">122</span> }<a name="line.122"></a> -<span class="sourceLineNo">123</span> return new TagRewriteCell(cell, tags);<a name="line.123"></a> -<span class="sourceLineNo">124</span> }<a name="line.124"></a> -<span class="sourceLineNo">125</span><a name="line.125"></a> -<span class="sourceLineNo">126</span> public static Cell createCell(Cell cell, byte[] value, byte[] tags) {<a name="line.126"></a> -<span class="sourceLineNo">127</span> if (cell instanceof ByteBufferCell) {<a name="line.127"></a> -<span class="sourceLineNo">128</span> return new ValueAndTagRewriteByteBufferCell((ByteBufferCell) cell, value, tags);<a name="line.128"></a> -<span class="sourceLineNo">129</span> }<a name="line.129"></a> -<span class="sourceLineNo">130</span> return new ValueAndTagRewriteCell(cell, value, tags);<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> /**<a name="line.133"></a> -<span class="sourceLineNo">134</span> * This can be used when a Cell has to change with addition/removal of one or more tags. This is<a name="line.134"></a> -<span class="sourceLineNo">135</span> * an efficient way to do so in which only the tags bytes part need to recreated and copied. All<a name="line.135"></a> -<span class="sourceLineNo">136</span> * other parts, refer to the original Cell.<a name="line.136"></a> -<span class="sourceLineNo">137</span> */<a name="line.137"></a> -<span class="sourceLineNo">138</span> static class TagRewriteCell implements ExtendedCell {<a name="line.138"></a> -<span class="sourceLineNo">139</span> protected Cell cell;<a name="line.139"></a> -<span class="sourceLineNo">140</span> protected byte[] tags;<a name="line.140"></a> -<span class="sourceLineNo">141</span> private static final int HEAP_SIZE_OVERHEAD = ClassSize.OBJECT + 2 * ClassSize.REFERENCE;<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> * @param cell The original Cell which it rewrites<a name="line.144"></a> -<span class="sourceLineNo">145</span> * @param tags the tags bytes. The array suppose to contain the tags bytes alone.<a name="line.145"></a> -<span class="sourceLineNo">146</span> */<a name="line.146"></a> -<span class="sourceLineNo">147</span> public TagRewriteCell(Cell cell, byte[] tags) {<a name="line.147"></a> -<span class="sourceLineNo">148</span> assert cell instanceof ExtendedCell;<a name="line.148"></a> -<span class="sourceLineNo">149</span> assert tags != null;<a name="line.149"></a> -<span class="sourceLineNo">150</span> this.cell = cell;<a name="line.150"></a> -<span class="sourceLineNo">151</span> this.tags = tags;<a name="line.151"></a> -<span class="sourceLineNo">152</span> // tag offset will be treated as 0 and length this.tags.length<a name="line.152"></a> -<span class="sourceLineNo">153</span> if (this.cell instanceof TagRewriteCell) {<a name="line.153"></a> -<span class="sourceLineNo">154</span> // Cleaning the ref so that the byte[] can be GCed<a name="line.154"></a> -<span class="sourceLineNo">155</span> ((TagRewriteCell) this.cell).tags = null;<a name="line.155"></a> -<span class="sourceLineNo">156</span> }<a name="line.156"></a> -<span class="sourceLineNo">157</span> }<a name="line.157"></a> -<span class="sourceLineNo">158</span><a name="line.158"></a> -<span class="sourceLineNo">159</span> @Override<a name="line.159"></a> -<span class="sourceLineNo">160</span> public byte[] getRowArray() {<a name="line.160"></a> -<span class="sourceLineNo">161</span> return cell.getRowArray();<a name="line.161"></a> -<span class="sourceLineNo">162</span> }<a name="line.162"></a> -<span class="sourceLineNo">163</span><a name="line.163"></a> -<span class="sourceLineNo">164</span> @Override<a name="line.164"></a> -<span class="sourceLineNo">165</span> public int getRowOffset() {<a name="line.165"></a> -<span class="sourceLineNo">166</span> return cell.getRowOffset();<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> @Override<a name="line.169"></a> -<span class="sourceLineNo">170</span> public short getRowLength() {<a name="line.170"></a> -<span class="sourceLineNo">171</span> return cell.getRowLength();<a name="line.171"></a> -<span class="sourceLineNo">172</span> }<a name="line.172"></a> -<span class="sourceLineNo">173</span><a name="line.173"></a> -<span class="sourceLineNo">174</span> @Override<a name="line.174"></a> -<span class="sourceLineNo">175</span> public byte[] getFamilyArray() {<a name="line.175"></a> -<span class="sourceLineNo">176</span> return cell.getFamilyArray();<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 int getFamilyOffset() {<a name="line.180"></a> -<span class="sourceLineNo">181</span> return cell.getFamilyOffset();<a 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}<a name="line.207"></a> -<span class="sourceLineNo">208</span><a name="line.208"></a> -<span class="sourceLineNo">209</span> @Override<a name="line.209"></a> -<span class="sourceLineNo">210</span> public byte getTypeByte() {<a name="line.210"></a> -<span class="sourceLineNo">211</span> return cell.getTypeByte();<a name="line.211"></a> -<span class="sourceLineNo">212</span> }<a name="line.212"></a> -<span class="sourceLineNo">213</span><a name="line.213"></a> -<span class="sourceLineNo">214</span> @Override<a name="line.214"></a> -<span class="sourceLineNo">215</span> public long getSequenceId() {<a name="line.215"></a> -<span class="sourceLineNo">216</span> return cell.getSequenceId();<a name="line.216"></a> -<span class="sourceLineNo">217</span> }<a name="line.217"></a> -<span class="sourceLineNo">218</span><a name="line.218"></a> -<span class="sourceLineNo">219</span> @Override<a name="line.219"></a> -<span class="sourceLineNo">220</span> public byte[] getValueArray() {<a 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change with addition/removal of one or more tags. This is<a name="line.132"></a> +<span class="sourceLineNo">133</span> * an efficient way to do so in which only the tags bytes part need to recreated and copied. 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class="sourceLineNo">312</span> Cell clonedBaseCell = ((ExtendedCell) this.cell).deepClone();<a name="line.312"></a> +<span class="sourceLineNo">313</span> return new TagRewriteCell(clonedBaseCell, this.tags);<a name="line.313"></a> +<span class="sourceLineNo">314</span> }<a name="line.314"></a> +<span class="sourceLineNo">315</span> }<a name="line.315"></a> +<span class="sourceLineNo">316</span><a name="line.316"></a> +<span class="sourceLineNo">317</span> static class TagRewriteByteBufferCell extends ByteBufferCell implements ExtendedCell {<a name="line.317"></a> +<span class="sourceLineNo">318</span><a name="line.318"></a> +<span class="sourceLineNo">319</span> protected ByteBufferCell cell;<a name="line.319"></a> +<span class="sourceLineNo">320</span> protected byte[] tags;<a name="line.320"></a> +<span class="sourceLineNo">321</span> private static final int HEAP_SIZE_OVERHEAD = ClassSize.OBJECT + 2 * ClassSize.REFERENCE;<a name="line.321"></a> +<span class="sourceLineNo">322</span><a name="line.322"></a> +<span class="sourceLineNo">323</span> /**<a name="line.323"></a> +<span class="sourceLineNo">324</span> * @param cell The original ByteBufferCell which it rewrites<a name="line.324"></a> +<span class="sourceLineNo">325</span> * @param tags the tags bytes. 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