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| <h2 title="Class MetaCellComparator" class="title">Class MetaCellComparator</h2> |
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| <pre>@InterfaceAudience.Private |
| @InterfaceStability.Evolving |
| public class <a href="../../../../src-html/org/apache/hadoop/hbase/MetaCellComparator.html#line.37">MetaCellComparator</a> |
| extends <a href="../../../../org/apache/hadoop/hbase/CellComparatorImpl.html" title="class in org.apache.hadoop.hbase">CellComparatorImpl</a></pre> |
| <div class="block">A <a href="../../../../org/apache/hadoop/hbase/CellComparatorImpl.html" title="class in org.apache.hadoop.hbase"><code>CellComparatorImpl</code></a> for <code>hbase:meta</code> catalog table |
| <a href="../../../../org/apache/hadoop/hbase/KeyValue.html" title="class in org.apache.hadoop.hbase"><code>KeyValue</code></a>s.</div> |
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| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static <a href="../../../../org/apache/hadoop/hbase/MetaCellComparator.html" title="class in org.apache.hadoop.hbase">MetaCellComparator</a></code></td> |
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| <div class="block">A <a href="../../../../org/apache/hadoop/hbase/MetaCellComparator.html" title="class in org.apache.hadoop.hbase"><code>MetaCellComparator</code></a> for <code>hbase:meta</code> catalog table |
| <a href="../../../../org/apache/hadoop/hbase/KeyValue.html" title="class in org.apache.hadoop.hbase"><code>KeyValue</code></a>s.</div> |
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| <code><a href="../../../../org/apache/hadoop/hbase/CellComparatorImpl.html#COMPARATOR">COMPARATOR</a></code></li> |
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| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/hbase/MetaCellComparator.html#compare-org.apache.hadoop.hbase.Cell-org.apache.hadoop.hbase.Cell-boolean-">compare</a></span>(<a href="../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> a, |
| <a href="../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> b, |
| boolean ignoreSequenceid)</code> |
| <div class="block">Compare cells.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>private static int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/hbase/MetaCellComparator.html#compareRows-byte:A-int-int-byte:A-int-int-">compareRows</a></span>(byte[] left, |
| int loffset, |
| int llength, |
| byte[] right, |
| int roffset, |
| int rlength)</code> </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/hbase/MetaCellComparator.html#compareRows-java.nio.ByteBuffer-org.apache.hadoop.hbase.Cell-">compareRows</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/nio/ByteBuffer.html?is-external=true" title="class or interface in java.nio">ByteBuffer</a> row, |
| <a href="../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> cell)</code> </td> |
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| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/hbase/MetaCellComparator.html#compareRows-org.apache.hadoop.hbase.Cell-byte:A-int-int-">compareRows</a></span>(<a href="../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> left, |
| byte[] right, |
| int roffset, |
| int rlength)</code> |
| <div class="block">Compares the row part of the cell with a simple plain byte[] like the |
| stopRow in Scan.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/hbase/MetaCellComparator.html#compareRows-org.apache.hadoop.hbase.Cell-org.apache.hadoop.hbase.Cell-">compareRows</a></span>(<a href="../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> left, |
| <a href="../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> right)</code> |
| <div class="block">Compares the rows of the left and right cell.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Comparator.html?is-external=true" title="class or interface in java.util">Comparator</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/hbase/MetaCellComparator.html#getSimpleComparator--">getSimpleComparator</a></span>()</code> </td> |
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| <pre>public static final <a href="../../../../org/apache/hadoop/hbase/MetaCellComparator.html" title="class in org.apache.hadoop.hbase">MetaCellComparator</a> <a href="../../../../src-html/org/apache/hadoop/hbase/MetaCellComparator.html#line.43">META_COMPARATOR</a></pre> |
| <div class="block">A <a href="../../../../org/apache/hadoop/hbase/MetaCellComparator.html" title="class in org.apache.hadoop.hbase"><code>MetaCellComparator</code></a> for <code>hbase:meta</code> catalog table |
| <a href="../../../../org/apache/hadoop/hbase/KeyValue.html" title="class in org.apache.hadoop.hbase"><code>KeyValue</code></a>s.</div> |
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| <h4>MetaCellComparator</h4> |
| <pre>public <a href="../../../../src-html/org/apache/hadoop/hbase/MetaCellComparator.html#line.37">MetaCellComparator</a>()</pre> |
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| <h3>Method Detail</h3> |
| <a name="compareRows-org.apache.hadoop.hbase.Cell-org.apache.hadoop.hbase.Cell-"> |
| <!-- --> |
| </a> |
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| <h4>compareRows</h4> |
| <pre>public int <a href="../../../../src-html/org/apache/hadoop/hbase/MetaCellComparator.html#line.47">compareRows</a>(<a href="../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> left, |
| <a href="../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> right)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="../../../../org/apache/hadoop/hbase/CellComparatorImpl.html#compareRows-org.apache.hadoop.hbase.Cell-org.apache.hadoop.hbase.Cell-">CellComparatorImpl</a></code></span></div> |
| <div class="block">Compares the rows of the left and right cell. |
| For the hbase:meta case this method is overridden such that it can handle hbase:meta cells. |
| The caller should ensure using the appropriate comparator for hbase:meta.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../org/apache/hadoop/hbase/CellComparator.html#compareRows-org.apache.hadoop.hbase.Cell-org.apache.hadoop.hbase.Cell-">compareRows</a></code> in interface <code><a href="../../../../org/apache/hadoop/hbase/CellComparator.html" title="interface in org.apache.hadoop.hbase">CellComparator</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../org/apache/hadoop/hbase/CellComparatorImpl.html#compareRows-org.apache.hadoop.hbase.Cell-org.apache.hadoop.hbase.Cell-">compareRows</a></code> in class <code><a href="../../../../org/apache/hadoop/hbase/CellComparatorImpl.html" title="class in org.apache.hadoop.hbase">CellComparatorImpl</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>left</code> - the left hand side cell</dd> |
| <dd><code>right</code> - the right hand side cell</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>0 if both cells are equal, 1 if left cell is bigger than right, -1 otherwise</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="compareRows-org.apache.hadoop.hbase.Cell-byte:A-int-int-"> |
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| </a> |
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| <h4>compareRows</h4> |
| <pre>public int <a href="../../../../src-html/org/apache/hadoop/hbase/MetaCellComparator.html#line.53">compareRows</a>(<a href="../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> left, |
| byte[] right, |
| int roffset, |
| int rlength)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="../../../../org/apache/hadoop/hbase/CellComparatorImpl.html#compareRows-org.apache.hadoop.hbase.Cell-byte:A-int-int-">CellComparatorImpl</a></code></span></div> |
| <div class="block">Compares the row part of the cell with a simple plain byte[] like the |
| stopRow in Scan. This should be used with context where for hbase:meta |
| cells the {<a href="../../../../org/apache/hadoop/hbase/MetaCellComparator.html#META_COMPARATOR"><code>META_COMPARATOR</code></a> should be used</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../org/apache/hadoop/hbase/CellComparator.html#compareRows-org.apache.hadoop.hbase.Cell-byte:A-int-int-">compareRows</a></code> in interface <code><a href="../../../../org/apache/hadoop/hbase/CellComparator.html" title="interface in org.apache.hadoop.hbase">CellComparator</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../org/apache/hadoop/hbase/CellComparatorImpl.html#compareRows-org.apache.hadoop.hbase.Cell-byte:A-int-int-">compareRows</a></code> in class <code><a href="../../../../org/apache/hadoop/hbase/CellComparatorImpl.html" title="class in org.apache.hadoop.hbase">CellComparatorImpl</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>left</code> - the cell to be compared</dd> |
| <dd><code>right</code> - the kv serialized byte[] to be compared with</dd> |
| <dd><code>roffset</code> - the offset in the byte[]</dd> |
| <dd><code>rlength</code> - the length in the byte[]</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>0 if both cell and the byte[] are equal, 1 if the cell is bigger |
| than byte[], -1 otherwise</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="compare-org.apache.hadoop.hbase.Cell-org.apache.hadoop.hbase.Cell-boolean-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>compare</h4> |
| <pre>public int <a href="../../../../src-html/org/apache/hadoop/hbase/MetaCellComparator.html#line.59">compare</a>(<a href="../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> a, |
| <a href="../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> b, |
| boolean ignoreSequenceid)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../org/apache/hadoop/hbase/CellComparator.html#compare-org.apache.hadoop.hbase.Cell-org.apache.hadoop.hbase.Cell-boolean-">CellComparator</a></code></span></div> |
| <div class="block">Compare cells.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../org/apache/hadoop/hbase/CellComparator.html#compare-org.apache.hadoop.hbase.Cell-org.apache.hadoop.hbase.Cell-boolean-">compare</a></code> in interface <code><a href="../../../../org/apache/hadoop/hbase/CellComparator.html" title="interface in org.apache.hadoop.hbase">CellComparator</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../org/apache/hadoop/hbase/CellComparatorImpl.html#compare-org.apache.hadoop.hbase.Cell-org.apache.hadoop.hbase.Cell-boolean-">compare</a></code> in class <code><a href="../../../../org/apache/hadoop/hbase/CellComparatorImpl.html" title="class in org.apache.hadoop.hbase">CellComparatorImpl</a></code></dd> |
| <dd><code>ignoreSequenceid</code> - True if we are to compare the key portion only and ignore |
| the sequenceid. Set to false to compare key and consider sequenceid.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>0 if equal, -1 if a < b, and +1 if a > b.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="compareRows-byte:A-int-int-byte:A-int-int-"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>compareRows</h4> |
| <pre>private static int <a href="../../../../src-html/org/apache/hadoop/hbase/MetaCellComparator.html#line.74">compareRows</a>(byte[] left, |
| int loffset, |
| int llength, |
| byte[] right, |
| int roffset, |
| int rlength)</pre> |
| </li> |
| </ul> |
| <a name="compareRows-java.nio.ByteBuffer-org.apache.hadoop.hbase.Cell-"> |
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| <h4>compareRows</h4> |
| <pre>public int <a href="../../../../src-html/org/apache/hadoop/hbase/MetaCellComparator.html#line.127">compareRows</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/nio/ByteBuffer.html?is-external=true" title="class or interface in java.nio">ByteBuffer</a> row, |
| <a href="../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> cell)</pre> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>row</code> - ByteBuffer that wraps a row; will read from current position and will reading all |
| remaining; will not disturb the ByteBuffer internal state.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>greater than 0 if leftCell is bigger, less than 0 if rightCell is bigger, 0 if both |
| cells are equal</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getSimpleComparator--"> |
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| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>getSimpleComparator</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Comparator.html?is-external=true" title="class or interface in java.util">Comparator</a> <a href="../../../../src-html/org/apache/hadoop/hbase/MetaCellComparator.html#line.146">getSimpleComparator</a>()</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../org/apache/hadoop/hbase/CellComparator.html#getSimpleComparator--">getSimpleComparator</a></code> in interface <code><a href="../../../../org/apache/hadoop/hbase/CellComparator.html" title="interface in org.apache.hadoop.hbase">CellComparator</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../org/apache/hadoop/hbase/CellComparatorImpl.html#getSimpleComparator--">getSimpleComparator</a></code> in class <code><a href="../../../../org/apache/hadoop/hbase/CellComparatorImpl.html" title="class in org.apache.hadoop.hbase">CellComparatorImpl</a></code></dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>A dumbed-down, fast comparator for hbase2 base-type, the <a href="../../../../org/apache/hadoop/hbase/ByteBufferKeyValue.html" title="class in org.apache.hadoop.hbase"><code>ByteBufferKeyValue</code></a>. |
| Create an instance when you make a new memstore, when you know only BBKVs will be passed. |
| Do not pollute with types other than BBKV if can be helped; the Comparator will slow.</dd> |
| </dl> |
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