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| <div class="subTitle">org.apache.hadoop.hbase.filter</div> |
| <h2 title="Class ColumnValueFilter" class="title">Class ColumnValueFilter</h2> |
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| <li><a href="../../../../../org/apache/hadoop/hbase/filter/Filter.html" title="class in org.apache.hadoop.hbase.filter">org.apache.hadoop.hbase.filter.Filter</a></li> |
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| <li>org.apache.hadoop.hbase.filter.FilterBase</li> |
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| <pre>@InterfaceAudience.Public |
| public class <a href="../../../../../src-html/org/apache/hadoop/hbase/filter/ColumnValueFilter.html#line.51">ColumnValueFilter</a> |
| extends org.apache.hadoop.hbase.filter.FilterBase</pre> |
| <div class="block">Different from <a href="../../../../../org/apache/hadoop/hbase/filter/SingleColumnValueFilter.html" title="class in org.apache.hadoop.hbase.filter"><code>SingleColumnValueFilter</code></a> which returns an <b>entire</b> row |
| when specified condition is matched, <a href="../../../../../org/apache/hadoop/hbase/filter/ColumnValueFilter.html" title="class in org.apache.hadoop.hbase.filter"><code>ColumnValueFilter</code></a> return the matched cell only. |
| <p> |
| This filter is used to filter cells based on column and value. |
| It takes a <a href="../../../../../org/apache/hadoop/hbase/CompareOperator.html" title="enum in org.apache.hadoop.hbase"><code>CompareOperator</code></a> operator (<, <=, =, !=, >, >=), and |
| and a <a href="../../../../../org/apache/hadoop/hbase/filter/ByteArrayComparable.html" title="class in org.apache.hadoop.hbase.filter"><code>ByteArrayComparable</code></a> comparator.</div> |
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| <code><a href="../../../../../org/apache/hadoop/hbase/filter/Filter.ReturnCode.html" title="enum in org.apache.hadoop.hbase.filter">Filter.ReturnCode</a></code></li> |
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| <code><a href="../../../../../org/apache/hadoop/hbase/filter/Filter.html#reversed">reversed</a></code></li> |
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| <tr> |
| <th class="colOne" scope="col">Constructor and Description</th> |
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| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/filter/ColumnValueFilter.html#ColumnValueFilter-byte:A-byte:A-org.apache.hadoop.hbase.CompareOperator-byte:A-">ColumnValueFilter</a></span>(byte[] family, |
| byte[] qualifier, |
| <a href="../../../../../org/apache/hadoop/hbase/CompareOperator.html" title="enum in org.apache.hadoop.hbase">CompareOperator</a> op, |
| byte[] value)</code> </td> |
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| byte[] qualifier, |
| <a href="../../../../../org/apache/hadoop/hbase/CompareOperator.html" title="enum in org.apache.hadoop.hbase">CompareOperator</a> op, |
| <a href="../../../../../org/apache/hadoop/hbase/filter/ByteArrayComparable.html" title="class in org.apache.hadoop.hbase.filter">ByteArrayComparable</a> comparator)</code> </td> |
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| <h3>Method Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation"> |
| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </span></span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Method and Description</th> |
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| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>static <a href="../../../../../org/apache/hadoop/hbase/filter/Filter.html" title="class in org.apache.hadoop.hbase.filter">Filter</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/filter/ColumnValueFilter.html#createFilterFromArguments-java.util.ArrayList-">createFilterFromArguments</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/ArrayList.html?is-external=true" title="class or interface in java.util">ArrayList</a><byte[]> filterArguments)</code> |
| <div class="block">Creating this filter by reflection, it is used by <a href="../../../../../org/apache/hadoop/hbase/filter/ParseFilter.html" title="class in org.apache.hadoop.hbase.filter"><code>ParseFilter</code></a>,</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/filter/ColumnValueFilter.html#equals-java.lang.Object-">equals</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> obj)</code> </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/filter/Filter.ReturnCode.html" title="enum in org.apache.hadoop.hbase.filter">Filter.ReturnCode</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/filter/ColumnValueFilter.html#filterCell-org.apache.hadoop.hbase.Cell-">filterCell</a></span>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> c)</code> |
| <div class="block">A way to filter based on the column family, column qualifier and/or the column value.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/filter/ColumnValueFilter.html#filterRowKey-org.apache.hadoop.hbase.Cell-">filterRowKey</a></span>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> cell)</code> |
| <div class="block">Filters a row based on the row key.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/filter/ByteArrayComparable.html" title="class in org.apache.hadoop.hbase.filter">ByteArrayComparable</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/filter/ColumnValueFilter.html#getComparator--">getComparator</a></span>()</code> </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/CompareOperator.html" title="enum in org.apache.hadoop.hbase">CompareOperator</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/filter/ColumnValueFilter.html#getCompareOperator--">getCompareOperator</a></span>()</code> </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>byte[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/filter/ColumnValueFilter.html#getFamily--">getFamily</a></span>()</code> </td> |
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| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>byte[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/filter/ColumnValueFilter.html#getQualifier--">getQualifier</a></span>()</code> </td> |
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| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/filter/ColumnValueFilter.html#hashCode--">hashCode</a></span>()</code> </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/filter/ColumnValueFilter.html#isFamilyEssential-byte:A-">isFamilyEssential</a></span>(byte[] name)</code> |
| <div class="block">By default, we require all scan's column families to be present.</div> |
| </td> |
| </tr> |
| <tr id="i10" class="altColor"> |
| <td class="colFirst"><code>static <a href="../../../../../org/apache/hadoop/hbase/filter/ColumnValueFilter.html" title="class in org.apache.hadoop.hbase.filter">ColumnValueFilter</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/filter/ColumnValueFilter.html#parseFrom-byte:A-">parseFrom</a></span>(byte[] pbBytes)</code> |
| <div class="block">Parse protobuf bytes to a ColumnValueFilter</div> |
| </td> |
| </tr> |
| <tr id="i11" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/filter/ColumnValueFilter.html#reset--">reset</a></span>()</code> |
| <div class="block">Filters that are purely stateless and do nothing in their reset() methods can inherit |
| this null/empty implementation.</div> |
| </td> |
| </tr> |
| <tr id="i12" class="altColor"> |
| <td class="colFirst"><code>byte[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/filter/ColumnValueFilter.html#toByteArray--">toByteArray</a></span>()</code> |
| <div class="block">Return length 0 byte array for Filters that don't require special serialization</div> |
| </td> |
| </tr> |
| <tr id="i13" class="rowColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/filter/ColumnValueFilter.html#toString--">toString</a></span>()</code> |
| <div class="block">Return filter's info for debugging and logging purpose.</div> |
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| <h3>Methods inherited from class org.apache.hadoop.hbase.filter.FilterBase</h3> |
| <code>filterAllRemaining, filterRow, filterRowCells, getNextCellHint, hasFilterRow, transformCell</code></li> |
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| <code><a href="../../../../../org/apache/hadoop/hbase/filter/Filter.html#isReversed--">isReversed</a>, <a href="../../../../../org/apache/hadoop/hbase/filter/Filter.html#setReversed-boolean-">setReversed</a></code></li> |
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| <h4>ColumnValueFilter</h4> |
| <pre>public <a href="../../../../../src-html/org/apache/hadoop/hbase/filter/ColumnValueFilter.html#line.61">ColumnValueFilter</a>(byte[] family, |
| byte[] qualifier, |
| <a href="../../../../../org/apache/hadoop/hbase/CompareOperator.html" title="enum in org.apache.hadoop.hbase">CompareOperator</a> op, |
| byte[] value)</pre> |
| </li> |
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| <h4>ColumnValueFilter</h4> |
| <pre>public <a href="../../../../../src-html/org/apache/hadoop/hbase/filter/ColumnValueFilter.html#line.66">ColumnValueFilter</a>(byte[] family, |
| byte[] qualifier, |
| <a href="../../../../../org/apache/hadoop/hbase/CompareOperator.html" title="enum in org.apache.hadoop.hbase">CompareOperator</a> op, |
| <a href="../../../../../org/apache/hadoop/hbase/filter/ByteArrayComparable.html" title="class in org.apache.hadoop.hbase.filter">ByteArrayComparable</a> comparator)</pre> |
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| <h4>getCompareOperator</h4> |
| <pre>public <a href="../../../../../org/apache/hadoop/hbase/CompareOperator.html" title="enum in org.apache.hadoop.hbase">CompareOperator</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/filter/ColumnValueFilter.html#line.78">getCompareOperator</a>()</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>operator</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getComparator--"> |
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| <h4>getComparator</h4> |
| <pre>public <a href="../../../../../org/apache/hadoop/hbase/filter/ByteArrayComparable.html" title="class in org.apache.hadoop.hbase.filter">ByteArrayComparable</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/filter/ColumnValueFilter.html#line.85">getComparator</a>()</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the comparator</dd> |
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| <h4>getFamily</h4> |
| <pre>public byte[] <a href="../../../../../src-html/org/apache/hadoop/hbase/filter/ColumnValueFilter.html#line.92">getFamily</a>()</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the column family</dd> |
| </dl> |
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| <h4>getQualifier</h4> |
| <pre>public byte[] <a href="../../../../../src-html/org/apache/hadoop/hbase/filter/ColumnValueFilter.html#line.99">getQualifier</a>()</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the qualifier</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="reset--"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>reset</h4> |
| <pre>public void <a href="../../../../../src-html/org/apache/hadoop/hbase/filter/ColumnValueFilter.html#line.104">reset</a>() |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code>org.apache.hadoop.hbase.filter.FilterBase</code></span></div> |
| <div class="block">Filters that are purely stateless and do nothing in their reset() methods can inherit |
| this null/empty implementation. |
| |
| Reset the state of the filter between rows. |
| |
| Concrete implementers can signal a failure condition in their code by throwing an |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io"><code>IOException</code></a>.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code>reset</code> in class <code>org.apache.hadoop.hbase.filter.FilterBase</code></dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code> - in case an I/O or an filter specific failure needs to be signaled.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="filterRowKey-org.apache.hadoop.hbase.Cell-"> |
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| </a> |
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| <h4>filterRowKey</h4> |
| <pre>public boolean <a href="../../../../../src-html/org/apache/hadoop/hbase/filter/ColumnValueFilter.html#line.109">filterRowKey</a>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> cell) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="../../../../../org/apache/hadoop/hbase/filter/Filter.html#filterRowKey-org.apache.hadoop.hbase.Cell-">Filter</a></code></span></div> |
| <div class="block">Filters a row based on the row key. If this returns true, the entire row will be excluded. If |
| false, each KeyValue in the row will be passed to <a href="../../../../../org/apache/hadoop/hbase/filter/Filter.html#filterCell-org.apache.hadoop.hbase.Cell-"><code>Filter.filterCell(Cell)</code></a> below. |
| If <a href="../../../../../org/apache/hadoop/hbase/filter/Filter.html#filterAllRemaining--"><code>Filter.filterAllRemaining()</code></a> returns true, then <a href="../../../../../org/apache/hadoop/hbase/filter/Filter.html#filterRowKey-org.apache.hadoop.hbase.Cell-"><code>Filter.filterRowKey(Cell)</code></a> should |
| also return true. |
| |
| Concrete implementers can signal a failure condition in their code by throwing an |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io"><code>IOException</code></a>.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code>filterRowKey</code> in class <code>org.apache.hadoop.hbase.filter.FilterBase</code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>cell</code> - The first cell coming in the new row</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>true, remove entire row, false, include the row (maybe).</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code> - in case an I/O or an filter specific failure needs to be signaled.</dd> |
| </dl> |
| </li> |
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| <h4>filterCell</h4> |
| <pre>public <a href="../../../../../org/apache/hadoop/hbase/filter/Filter.ReturnCode.html" title="enum in org.apache.hadoop.hbase.filter">Filter.ReturnCode</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/filter/ColumnValueFilter.html#line.114">filterCell</a>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> c) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="../../../../../org/apache/hadoop/hbase/filter/Filter.html#filterCell-org.apache.hadoop.hbase.Cell-">Filter</a></code></span></div> |
| <div class="block">A way to filter based on the column family, column qualifier and/or the column value. Return |
| code is described below. This allows filters to filter only certain number of columns, then |
| terminate without matching ever column. |
| |
| If filterRowKey returns true, filterCell needs to be consistent with it. |
| |
| filterCell can assume that filterRowKey has already been called for the row. |
| |
| If your filter returns <code>ReturnCode.NEXT_ROW</code>, it should return |
| <code>ReturnCode.NEXT_ROW</code> until <a href="../../../../../org/apache/hadoop/hbase/filter/Filter.html#reset--"><code>Filter.reset()</code></a> is called just in case the caller calls |
| for the next row. |
| |
| Concrete implementers can signal a failure condition in their code by throwing an |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io"><code>IOException</code></a>.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../../org/apache/hadoop/hbase/filter/Filter.html#filterCell-org.apache.hadoop.hbase.Cell-">filterCell</a></code> in class <code><a href="../../../../../org/apache/hadoop/hbase/filter/Filter.html" title="class in org.apache.hadoop.hbase.filter">Filter</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>c</code> - the Cell in question</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>code as described below</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code> - in case an I/O or an filter specific failure needs to be signaled.</dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../org/apache/hadoop/hbase/filter/Filter.ReturnCode.html" title="enum in org.apache.hadoop.hbase.filter"><code>Filter.ReturnCode</code></a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="createFilterFromArguments-java.util.ArrayList-"> |
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| <h4>createFilterFromArguments</h4> |
| <pre>public static <a href="../../../../../org/apache/hadoop/hbase/filter/Filter.html" title="class in org.apache.hadoop.hbase.filter">Filter</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/filter/ColumnValueFilter.html#line.148">createFilterFromArguments</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/ArrayList.html?is-external=true" title="class or interface in java.util">ArrayList</a><byte[]> filterArguments)</pre> |
| <div class="block">Creating this filter by reflection, it is used by <a href="../../../../../org/apache/hadoop/hbase/filter/ParseFilter.html" title="class in org.apache.hadoop.hbase.filter"><code>ParseFilter</code></a>,</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>filterArguments</code> - arguments for creating a ColumnValueFilter</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a ColumnValueFilter</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="parseFrom-byte:A-"> |
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| <h4>parseFrom</h4> |
| <pre>public static <a href="../../../../../org/apache/hadoop/hbase/filter/ColumnValueFilter.html" title="class in org.apache.hadoop.hbase.filter">ColumnValueFilter</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/filter/ColumnValueFilter.html#line.190">parseFrom</a>(byte[] pbBytes) |
| throws org.apache.hadoop.hbase.exceptions.DeserializationException</pre> |
| <div class="block">Parse protobuf bytes to a ColumnValueFilter</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>pbBytes</code> - pbBytes</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a ColumnValueFilter</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code>org.apache.hadoop.hbase.exceptions.DeserializationException</code> - deserialization exception</dd> |
| </dl> |
| </li> |
| </ul> |
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| <h4>toByteArray</h4> |
| <pre>public byte[] <a href="../../../../../src-html/org/apache/hadoop/hbase/filter/ColumnValueFilter.html#line.211">toByteArray</a>() |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code>org.apache.hadoop.hbase.filter.FilterBase</code></span></div> |
| <div class="block">Return length 0 byte array for Filters that don't require special serialization</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code>toByteArray</code> in class <code>org.apache.hadoop.hbase.filter.FilterBase</code></dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The filter serialized using pb</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code> - in case an I/O or an filter specific failure needs to be signaled.</dd> |
| </dl> |
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| <h4>isFamilyEssential</h4> |
| <pre>public boolean <a href="../../../../../src-html/org/apache/hadoop/hbase/filter/ColumnValueFilter.html#line.231">isFamilyEssential</a>(byte[] name) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code>org.apache.hadoop.hbase.filter.FilterBase</code></span></div> |
| <div class="block">By default, we require all scan's column families to be present. Our |
| subclasses may be more precise. |
| |
| Check that given column family is essential for filter to check row. Most filters always return |
| true here. But some could have more sophisticated logic which could significantly reduce |
| scanning process by not even touching columns until we are 100% sure that it's data is needed |
| in result. |
| |
| Concrete implementers can signal a failure condition in their code by throwing an |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io"><code>IOException</code></a>.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code>isFamilyEssential</code> in class <code>org.apache.hadoop.hbase.filter.FilterBase</code></dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code> - in case an I/O or an filter specific failure needs to be signaled.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="toString--"> |
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| <h4>toString</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/filter/ColumnValueFilter.html#line.236">toString</a>()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code>org.apache.hadoop.hbase.filter.FilterBase</code></span></div> |
| <div class="block">Return filter's info for debugging and logging purpose.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code>toString</code> in class <code>org.apache.hadoop.hbase.filter.FilterBase</code></dd> |
| </dl> |
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| <pre>public boolean <a href="../../../../../src-html/org/apache/hadoop/hbase/filter/ColumnValueFilter.html#line.244">equals</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> obj)</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a></code> in class <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></dd> |
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| <pre>public int <a href="../../../../../src-html/org/apache/hadoop/hbase/filter/ColumnValueFilter.html#line.249">hashCode</a>()</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a></code> in class <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></dd> |
| </dl> |
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