You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@hbase.apache.org by gi...@apache.org on 2018/08/24 14:47:20 UTC
[06/51] [partial] hbase-site git commit: Published site at
a452487a9b82bfd33bc10683c3f8b8ae74d58883.
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/0cf79db0/devapidocs/src-html/org/apache/hadoop/hbase/filter/ColumnCountGetFilter.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/filter/ColumnCountGetFilter.html b/devapidocs/src-html/org/apache/hadoop/hbase/filter/ColumnCountGetFilter.html
index c6137d0..4ca69da 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/filter/ColumnCountGetFilter.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/filter/ColumnCountGetFilter.html
@@ -29,118 +29,133 @@
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<span class="sourceLineNo">022</span>import java.io.IOException;<a name="line.22"></a>
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-<span class="sourceLineNo">126</span><a name="line.126"></a>
-<span class="sourceLineNo">127</span> ColumnCountGetFilter other = (ColumnCountGetFilter)o;<a name="line.127"></a>
-<span class="sourceLineNo">128</span> return this.getLimit() == other.getLimit();<a name="line.128"></a>
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+<span class="sourceLineNo">024</span>import java.util.Objects;<a name="line.24"></a>
+<span class="sourceLineNo">025</span><a name="line.25"></a>
+<span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.Cell;<a name="line.26"></a>
+<span class="sourceLineNo">027</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.27"></a>
+<span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.exceptions.DeserializationException;<a name="line.28"></a>
+<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.FilterProtos;<a name="line.29"></a>
+<span class="sourceLineNo">030</span><a name="line.30"></a>
+<span class="sourceLineNo">031</span>import org.apache.hbase.thirdparty.com.google.common.base.Preconditions;<a name="line.31"></a>
+<span class="sourceLineNo">032</span>import org.apache.hbase.thirdparty.com.google.protobuf.InvalidProtocolBufferException;<a name="line.32"></a>
+<span class="sourceLineNo">033</span><a name="line.33"></a>
+<span class="sourceLineNo">034</span>/**<a name="line.34"></a>
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+<span class="sourceLineNo">038</span> * makes this filter unsuitable as a Scan filter.<a name="line.38"></a>
+<span class="sourceLineNo">039</span> */<a name="line.39"></a>
+<span class="sourceLineNo">040</span>@InterfaceAudience.Public<a name="line.40"></a>
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+<span class="sourceLineNo">043</span> private int count = 0;<a name="line.43"></a>
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+<span class="sourceLineNo">045</span> public ColumnCountGetFilter(final int n) {<a name="line.45"></a>
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+<span class="sourceLineNo">047</span> this.limit = n;<a name="line.47"></a>
+<span class="sourceLineNo">048</span> }<a name="line.48"></a>
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+<span class="sourceLineNo">068</span> public ReturnCode filterKeyValue(final Cell c) {<a name="line.68"></a>
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+<span class="sourceLineNo">074</span> this.count++;<a name="line.74"></a>
+<span class="sourceLineNo">075</span> return filterAllRemaining() ? ReturnCode.NEXT_COL : ReturnCode.INCLUDE_AND_NEXT_COL;<a name="line.75"></a>
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+<span class="sourceLineNo">077</span><a name="line.77"></a>
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+<span class="sourceLineNo">084</span> Preconditions.checkArgument(filterArguments.size() == 1,<a name="line.84"></a>
+<span class="sourceLineNo">085</span> "Expected 1 but got: %s", filterArguments.size());<a name="line.85"></a>
+<span class="sourceLineNo">086</span> int limit = ParseFilter.convertByteArrayToInt(filterArguments.get(0));<a name="line.86"></a>
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+<span class="sourceLineNo">107</span> public static ColumnCountGetFilter parseFrom(final byte [] pbBytes)<a name="line.107"></a>
+<span class="sourceLineNo">108</span> throws DeserializationException {<a name="line.108"></a>
+<span class="sourceLineNo">109</span> FilterProtos.ColumnCountGetFilter proto;<a name="line.109"></a>
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+<span class="sourceLineNo">113</span> throw new DeserializationException(e);<a name="line.113"></a>
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http://git-wip-us.apache.org/repos/asf/hbase-site/blob/0cf79db0/devapidocs/src-html/org/apache/hadoop/hbase/filter/ColumnPaginationFilter.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/filter/ColumnPaginationFilter.html b/devapidocs/src-html/org/apache/hadoop/hbase/filter/ColumnPaginationFilter.html
index 4fc026d..0b46d9f 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/filter/ColumnPaginationFilter.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/filter/ColumnPaginationFilter.html
@@ -28,217 +28,232 @@
<span class="sourceLineNo">020</span><a name="line.20"></a>
<span class="sourceLineNo">021</span>import java.io.IOException;<a name="line.21"></a>
<span class="sourceLineNo">022</span>import java.util.ArrayList;<a name="line.22"></a>
-<span class="sourceLineNo">023</span><a name="line.23"></a>
-<span class="sourceLineNo">024</span>import org.apache.hadoop.hbase.Cell;<a name="line.24"></a>
-<span class="sourceLineNo">025</span>import org.apache.hadoop.hbase.CellUtil;<a name="line.25"></a>
-<span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.PrivateCellUtil;<a name="line.26"></a>
-<span class="sourceLineNo">027</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.27"></a>
-<span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.exceptions.DeserializationException;<a name="line.28"></a>
-<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.FilterProtos;<a name="line.29"></a>
-<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.30"></a>
-<span class="sourceLineNo">031</span><a name="line.31"></a>
-<span class="sourceLineNo">032</span>import org.apache.hbase.thirdparty.com.google.common.base.Preconditions;<a name="line.32"></a>
-<span class="sourceLineNo">033</span>import org.apache.hbase.thirdparty.com.google.protobuf.InvalidProtocolBufferException;<a name="line.33"></a>
-<span class="sourceLineNo">034</span>import org.apache.hbase.thirdparty.com.google.protobuf.UnsafeByteOperations;<a name="line.34"></a>
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-<span class="sourceLineNo">036</span>/**<a name="line.36"></a>
-<span class="sourceLineNo">037</span> * A filter, based on the ColumnCountGetFilter, takes two arguments: limit and offset.<a name="line.37"></a>
-<span class="sourceLineNo">038</span> * This filter can be used for row-based indexing, where references to other tables are stored across many columns,<a name="line.38"></a>
-<span class="sourceLineNo">039</span> * in order to efficient lookups and paginated results for end users. Only most recent versions are considered<a name="line.39"></a>
-<span class="sourceLineNo">040</span> * for pagination.<a name="line.40"></a>
-<span class="sourceLineNo">041</span> */<a name="line.41"></a>
-<span class="sourceLineNo">042</span>@InterfaceAudience.Public<a name="line.42"></a>
-<span class="sourceLineNo">043</span>public class ColumnPaginationFilter extends FilterBase {<a name="line.43"></a>
-<span class="sourceLineNo">044</span><a name="line.44"></a>
-<span class="sourceLineNo">045</span> private int limit = 0;<a name="line.45"></a>
-<span class="sourceLineNo">046</span> private int offset = -1;<a name="line.46"></a>
-<span class="sourceLineNo">047</span> private byte[] columnOffset = null;<a name="line.47"></a>
-<span class="sourceLineNo">048</span> private int count = 0;<a name="line.48"></a>
-<span class="sourceLineNo">049</span><a name="line.49"></a>
-<span class="sourceLineNo">050</span> /**<a name="line.50"></a>
-<span class="sourceLineNo">051</span> * Initializes filter with an integer offset and limit. The offset is arrived at<a name="line.51"></a>
-<span class="sourceLineNo">052</span> * scanning sequentially and skipping entries. @limit number of columns are<a name="line.52"></a>
-<span class="sourceLineNo">053</span> * then retrieved. If multiple column families are involved, the columns may be spread<a name="line.53"></a>
-<span class="sourceLineNo">054</span> * across them.<a name="line.54"></a>
-<span class="sourceLineNo">055</span> *<a name="line.55"></a>
-<span class="sourceLineNo">056</span> * @param limit Max number of columns to return.<a name="line.56"></a>
-<span class="sourceLineNo">057</span> * @param offset The integer offset where to start pagination.<a name="line.57"></a>
-<span class="sourceLineNo">058</span> */<a name="line.58"></a>
-<span class="sourceLineNo">059</span> public ColumnPaginationFilter(final int limit, final int offset)<a name="line.59"></a>
-<span class="sourceLineNo">060</span> {<a name="line.60"></a>
-<span class="sourceLineNo">061</span> Preconditions.checkArgument(limit >= 0, "limit must be positive %s", limit);<a name="line.61"></a>
-<span class="sourceLineNo">062</span> Preconditions.checkArgument(offset >= 0, "offset must be positive %s", offset);<a name="line.62"></a>
-<span class="sourceLineNo">063</span> this.limit = limit;<a name="line.63"></a>
-<span class="sourceLineNo">064</span> this.offset = offset;<a name="line.64"></a>
-<span class="sourceLineNo">065</span> }<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> * Initializes filter with a string/bookmark based offset and limit. The offset is arrived<a name="line.68"></a>
-<span class="sourceLineNo">069</span> * at, by seeking to it using scanner hints. If multiple column families are involved,<a name="line.69"></a>
-<span class="sourceLineNo">070</span> * pagination starts at the first column family which contains @columnOffset. Columns are<a name="line.70"></a>
-<span class="sourceLineNo">071</span> * then retrieved sequentially upto @limit number of columns which maybe spread across<a name="line.71"></a>
-<span class="sourceLineNo">072</span> * multiple column families, depending on how the scan is setup.<a name="line.72"></a>
-<span class="sourceLineNo">073</span> *<a name="line.73"></a>
-<span class="sourceLineNo">074</span> * @param limit Max number of columns to return.<a name="line.74"></a>
-<span class="sourceLineNo">075</span> * @param columnOffset The string/bookmark offset on where to start pagination.<a name="line.75"></a>
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-<span class="sourceLineNo">077</span> public ColumnPaginationFilter(final int limit, final byte[] columnOffset) {<a name="line.77"></a>
-<span class="sourceLineNo">078</span> Preconditions.checkArgument(limit >= 0, "limit must be positive %s", limit);<a name="line.78"></a>
-<span class="sourceLineNo">079</span> Preconditions.checkArgument(columnOffset != null,<a name="line.79"></a>
-<span class="sourceLineNo">080</span> "columnOffset must be non-null %s",<a name="line.80"></a>
-<span class="sourceLineNo">081</span> columnOffset);<a name="line.81"></a>
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-<span class="sourceLineNo">083</span> this.columnOffset = columnOffset;<a name="line.83"></a>
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-<span class="sourceLineNo">097</span> return offset;<a name="line.97"></a>
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-<span class="sourceLineNo">100</span> /**<a name="line.100"></a>
-<span class="sourceLineNo">101</span> * @return columnOffset<a name="line.101"></a>
-<span class="sourceLineNo">102</span> */<a name="line.102"></a>
-<span class="sourceLineNo">103</span> public byte[] getColumnOffset() {<a name="line.103"></a>
-<span class="sourceLineNo">104</span> return columnOffset;<a name="line.104"></a>
-<span class="sourceLineNo">105</span> }<a name="line.105"></a>
-<span class="sourceLineNo">106</span><a name="line.106"></a>
-<span class="sourceLineNo">107</span> @Override<a name="line.107"></a>
-<span class="sourceLineNo">108</span> public boolean filterRowKey(Cell cell) throws IOException {<a name="line.108"></a>
-<span class="sourceLineNo">109</span> // Impl in FilterBase might do unnecessary copy for Off heap backed Cells.<a name="line.109"></a>
-<span class="sourceLineNo">110</span> return false;<a name="line.110"></a>
-<span class="sourceLineNo">111</span> }<a name="line.111"></a>
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-<span class="sourceLineNo">113</span> @Override<a name="line.113"></a>
-<span class="sourceLineNo">114</span> @Deprecated<a name="line.114"></a>
-<span class="sourceLineNo">115</span> public ReturnCode filterKeyValue(final Cell c) {<a name="line.115"></a>
-<span class="sourceLineNo">116</span> return filterCell(c);<a name="line.116"></a>
-<span class="sourceLineNo">117</span> }<a name="line.117"></a>
-<span class="sourceLineNo">118</span><a name="line.118"></a>
-<span class="sourceLineNo">119</span> @Override<a name="line.119"></a>
-<span class="sourceLineNo">120</span> public ReturnCode filterCell(final Cell c)<a name="line.120"></a>
-<span class="sourceLineNo">121</span> {<a name="line.121"></a>
-<span class="sourceLineNo">122</span> if (columnOffset != null) {<a name="line.122"></a>
-<span class="sourceLineNo">123</span> if (count >= limit) {<a name="line.123"></a>
-<span class="sourceLineNo">124</span> return ReturnCode.NEXT_ROW;<a name="line.124"></a>
-<span class="sourceLineNo">125</span> }<a name="line.125"></a>
-<span class="sourceLineNo">126</span> int cmp = 0;<a name="line.126"></a>
-<span class="sourceLineNo">127</span> // Only compare if no KV's have been seen so far.<a name="line.127"></a>
-<span class="sourceLineNo">128</span> if (count == 0) {<a name="line.128"></a>
-<span class="sourceLineNo">129</span> cmp = CellUtil.compareQualifiers(c, this.columnOffset, 0, this.columnOffset.length);<a name="line.129"></a>
-<span class="sourceLineNo">130</span> }<a name="line.130"></a>
-<span class="sourceLineNo">131</span> if (cmp < 0) {<a name="line.131"></a>
-<span class="sourceLineNo">132</span> return ReturnCode.SEEK_NEXT_USING_HINT;<a name="line.132"></a>
-<span class="sourceLineNo">133</span> } else {<a name="line.133"></a>
-<span class="sourceLineNo">134</span> count++;<a name="line.134"></a>
-<span class="sourceLineNo">135</span> return ReturnCode.INCLUDE_AND_NEXT_COL;<a name="line.135"></a>
-<span class="sourceLineNo">136</span> }<a name="line.136"></a>
-<span class="sourceLineNo">137</span> } else {<a name="line.137"></a>
-<span class="sourceLineNo">138</span> if (count >= offset + limit) {<a name="line.138"></a>
-<span class="sourceLineNo">139</span> return ReturnCode.NEXT_ROW;<a name="line.139"></a>
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-<span class="sourceLineNo">141</span><a name="line.141"></a>
-<span class="sourceLineNo">142</span> ReturnCode code = count < offset ? ReturnCode.NEXT_COL :<a name="line.142"></a>
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-<span class="sourceLineNo">144</span> count++;<a name="line.144"></a>
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-<span class="sourceLineNo">150</span> public Cell getNextCellHint(Cell cell) {<a name="line.150"></a>
-<span class="sourceLineNo">151</span> return PrivateCellUtil.createFirstOnRowCol(cell, columnOffset, 0, columnOffset.length);<a name="line.151"></a>
-<span class="sourceLineNo">152</span> }<a name="line.152"></a>
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-<span class="sourceLineNo">160</span> public static Filter createFilterFromArguments(ArrayList<byte []> filterArguments) {<a name="line.160"></a>
-<span class="sourceLineNo">161</span> Preconditions.checkArgument(filterArguments.size() == 2,<a name="line.161"></a>
-<span class="sourceLineNo">162</span> "Expected 2 but got: %s", filterArguments.size());<a name="line.162"></a>
-<span class="sourceLineNo">163</span> int limit = ParseFilter.convertByteArrayToInt(filterArguments.get(0));<a name="line.163"></a>
-<span class="sourceLineNo">164</span> int offset = ParseFilter.convertByteArrayToInt(filterArguments.get(1));<a name="line.164"></a>
-<span class="sourceLineNo">165</span> return new ColumnPaginationFilter(limit, offset);<a name="line.165"></a>
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-<span class="sourceLineNo">173</span> FilterProtos.ColumnPaginationFilter.Builder builder =<a name="line.173"></a>
-<span class="sourceLineNo">174</span> FilterProtos.ColumnPaginationFilter.newBuilder();<a name="line.174"></a>
-<span class="sourceLineNo">175</span> builder.setLimit(this.limit);<a name="line.175"></a>
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+<span class="sourceLineNo">024</span><a name="line.24"></a>
+<span class="sourceLineNo">025</span>import org.apache.hadoop.hbase.Cell;<a name="line.25"></a>
+<span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.CellUtil;<a name="line.26"></a>
+<span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.PrivateCellUtil;<a name="line.27"></a>
+<span class="sourceLineNo">028</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.28"></a>
+<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.exceptions.DeserializationException;<a name="line.29"></a>
+<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.FilterProtos;<a name="line.30"></a>
+<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.31"></a>
+<span class="sourceLineNo">032</span><a name="line.32"></a>
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+<span class="sourceLineNo">035</span>import org.apache.hbase.thirdparty.com.google.protobuf.UnsafeByteOperations;<a name="line.35"></a>
+<span class="sourceLineNo">036</span><a name="line.36"></a>
+<span class="sourceLineNo">037</span>/**<a name="line.37"></a>
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+<span class="sourceLineNo">039</span> * This filter can be used for row-based indexing, where references to other tables are stored across many columns,<a name="line.39"></a>
+<span class="sourceLineNo">040</span> * in order to efficient lookups and paginated results for end users. Only most recent versions are considered<a name="line.40"></a>
+<span class="sourceLineNo">041</span> * for pagination.<a name="line.41"></a>
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+<span class="sourceLineNo">043</span>@InterfaceAudience.Public<a name="line.43"></a>
+<span class="sourceLineNo">044</span>public class ColumnPaginationFilter extends FilterBase {<a name="line.44"></a>
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+<span class="sourceLineNo">050</span><a name="line.50"></a>
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+<span class="sourceLineNo">054</span> * then retrieved. If multiple column families are involved, the columns may be spread<a name="line.54"></a>
+<span class="sourceLineNo">055</span> * across them.<a name="line.55"></a>
+<span class="sourceLineNo">056</span> *<a name="line.56"></a>
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+<span class="sourceLineNo">115</span> @Deprecated<a name="line.115"></a>
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+<span class="sourceLineNo">154</span><a name="line.154"></a>
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+<span class="sourceLineNo">189</span> * @throws DeserializationException<a name="line.189"></a>
+<span class="sourceLineNo">190</span> * @see #toByteArray<a name="line.190"></a>
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+<span class="sourceLineNo">206</span><a name="line.206"></a>
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+<span class="sourceLineNo">210</span> * are equal to the corresponding fields in other. Used for testing.<a name="line.210"></a>
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