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<div class="subTitle">org.apache.hadoop.hbase.filter</div>
<h2 title="Class WhileMatchFilter" class="title">Class WhileMatchFilter</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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<ul class="inheritance">
<li><a href="../../../../../org/apache/hadoop/hbase/filter/FilterBase.html" title="class in org.apache.hadoop.hbase.filter">org.apache.hadoop.hbase.filter.FilterBase</a></li>
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<li>org.apache.hadoop.hbase.filter.WhileMatchFilter</li>
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<pre>@InterfaceAudience.Public
public class <a href="../../../../../src-html/org/apache/hadoop/hbase/filter/WhileMatchFilter.html#line.41">WhileMatchFilter</a>
extends <a href="../../../../../org/apache/hadoop/hbase/filter/FilterBase.html" title="class in org.apache.hadoop.hbase.filter">FilterBase</a></pre>
<div class="block">A wrapper filter that returns true from <a href="../../../../../org/apache/hadoop/hbase/filter/WhileMatchFilter.html#filterAllRemaining--"><code>filterAllRemaining()</code></a> as soon
as the wrapped filters <a href="../../../../../org/apache/hadoop/hbase/filter/Filter.html#filterRowKey-org.apache.hadoop.hbase.Cell-"><code>Filter.filterRowKey(Cell)</code></a>,
<a href="../../../../../org/apache/hadoop/hbase/filter/Filter.html#filterCell-org.apache.hadoop.hbase.Cell-"><code>Filter.filterCell(org.apache.hadoop.hbase.Cell)</code></a>,
<a href="../../../../../org/apache/hadoop/hbase/filter/Filter.html#filterRow--"><code>Filter.filterRow()</code></a> or
<a href="../../../../../org/apache/hadoop/hbase/filter/Filter.html#filterAllRemaining--"><code>Filter.filterAllRemaining()</code></a> methods
returns true.</div>
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<h3>Nested classes/interfaces inherited from class&nbsp;org.apache.hadoop.hbase.filter.<a href="../../../../../org/apache/hadoop/hbase/filter/Filter.html" title="class in org.apache.hadoop.hbase.filter">Filter</a></h3>
<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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<caption><span>Fields</span><span class="tabEnd">&nbsp;</span></caption>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Field and Description</th>
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<td class="colFirst"><code>private <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/WhileMatchFilter.html#filter">filter</a></span></code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>private boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/filter/WhileMatchFilter.html#filterAllRemaining">filterAllRemaining</a></span></code>&nbsp;</td>
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<h3>Fields inherited from class&nbsp;org.apache.hadoop.hbase.filter.<a href="../../../../../org/apache/hadoop/hbase/filter/Filter.html" title="class in org.apache.hadoop.hbase.filter">Filter</a></h3>
<code><a href="../../../../../org/apache/hadoop/hbase/filter/Filter.html#reversed">reversed</a></code></li>
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<th class="colOne" scope="col">Constructor and Description</th>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/filter/WhileMatchFilter.html#WhileMatchFilter-org.apache.hadoop.hbase.filter.Filter-">WhileMatchFilter</a></span>(<a href="../../../../../org/apache/hadoop/hbase/filter/Filter.html" title="class in org.apache.hadoop.hbase.filter">Filter</a>&nbsp;filter)</code>&nbsp;</td>
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<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
</tr>
<tr id="i0" class="altColor">
<td class="colFirst"><code>(package private) boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/filter/WhileMatchFilter.html#areSerializedFieldsEqual-org.apache.hadoop.hbase.filter.Filter-">areSerializedFieldsEqual</a></span>(<a href="../../../../../org/apache/hadoop/hbase/filter/Filter.html" title="class in org.apache.hadoop.hbase.filter">Filter</a>&nbsp;o)</code>
<div class="block">Default implementation so that writers of custom filters aren't forced to implement.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>private void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/filter/WhileMatchFilter.html#changeFAR-boolean-">changeFAR</a></span>(boolean&nbsp;value)</code>&nbsp;</td>
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<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/filter/WhileMatchFilter.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>&nbsp;obj)</code>&nbsp;</td>
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<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/filter/WhileMatchFilter.html#filterAllRemaining--">filterAllRemaining</a></span>()</code>
<div class="block">Filters that never filter all remaining can inherit this implementation that
never stops the filter early.</div>
</td>
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<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/WhileMatchFilter.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>&nbsp;c)</code>
<div class="block">A way to filter based on the column family, column qualifier and/or the column value.</div>
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<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/filter/WhileMatchFilter.html#filterRow--">filterRow</a></span>()</code>
<div class="block">Filters that never filter by rows based on previously gathered state from
<a href="../../../../../org/apache/hadoop/hbase/filter/Filter.html#filterCell-org.apache.hadoop.hbase.Cell-"><code>Filter.filterCell(Cell)</code></a> can inherit this implementation that
never filters a row.</div>
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<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/filter/WhileMatchFilter.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>&nbsp;cell)</code>
<div class="block">Filters a row based on the row key.</div>
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<tr id="i7" class="rowColor">
<td class="colFirst"><code><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/WhileMatchFilter.html#getFilter--">getFilter</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/filter/WhileMatchFilter.html#hasFilterRow--">hasFilterRow</a></span>()</code>
<div class="block">Fitlers that never filter by modifying the returned List of Cells can
inherit this implementation that does nothing.</div>
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<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/filter/WhileMatchFilter.html#hashCode--">hashCode</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/filter/WhileMatchFilter.html#isFamilyEssential-byte:A-">isFamilyEssential</a></span>(byte[]&nbsp;name)</code>
<div class="block">By default, we require all scan's column families to be present.</div>
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<tr id="i11" class="rowColor">
<td class="colFirst"><code>static <a href="../../../../../org/apache/hadoop/hbase/filter/WhileMatchFilter.html" title="class in org.apache.hadoop.hbase.filter">WhileMatchFilter</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/filter/WhileMatchFilter.html#parseFrom-byte:A-">parseFrom</a></span>(byte[]&nbsp;pbBytes)</code>&nbsp;</td>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/filter/WhileMatchFilter.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>
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<td class="colFirst"><code>byte[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/filter/WhileMatchFilter.html#toByteArray--">toByteArray</a></span>()</code>
<div class="block">Return length 0 byte array for Filters that don't require special serialization</div>
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<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/WhileMatchFilter.html#toString--">toString</a></span>()</code>
<div class="block">Return filter's info for debugging and logging purpose.</div>
</td>
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<tr id="i15" class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/filter/WhileMatchFilter.html#transformCell-org.apache.hadoop.hbase.Cell-">transformCell</a></span>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>&nbsp;v)</code>
<div class="block">By default no transformation takes place
Give the filter a chance to transform the passed KeyValue.</div>
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<code><a href="../../../../../org/apache/hadoop/hbase/filter/FilterBase.html#createFilterFromArguments-java.util.ArrayList-">createFilterFromArguments</a>, <a href="../../../../../org/apache/hadoop/hbase/filter/FilterBase.html#filterRowCells-java.util.List-">filterRowCells</a>, <a href="../../../../../org/apache/hadoop/hbase/filter/FilterBase.html#getNextCellHint-org.apache.hadoop.hbase.Cell-">getNextCellHint</a></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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<pre>private&nbsp;boolean <a href="../../../../../src-html/org/apache/hadoop/hbase/filter/WhileMatchFilter.html#line.42">filterAllRemaining</a></pre>
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<h4>filter</h4>
<pre>private&nbsp;<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/WhileMatchFilter.html#line.43">filter</a></pre>
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<h4>WhileMatchFilter</h4>
<pre>public&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/filter/WhileMatchFilter.html#line.45">WhileMatchFilter</a>(<a href="../../../../../org/apache/hadoop/hbase/filter/Filter.html" title="class in org.apache.hadoop.hbase.filter">Filter</a>&nbsp;filter)</pre>
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<h4>getFilter</h4>
<pre>public&nbsp;<a href="../../../../../org/apache/hadoop/hbase/filter/Filter.html" title="class in org.apache.hadoop.hbase.filter">Filter</a>&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/filter/WhileMatchFilter.html#line.49">getFilter</a>()</pre>
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<pre>public&nbsp;void&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/filter/WhileMatchFilter.html#line.54">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:&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/filter/FilterBase.html#reset--">FilterBase</a></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><a href="../../../../../org/apache/hadoop/hbase/filter/FilterBase.html#reset--">reset</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/filter/FilterBase.html" title="class in org.apache.hadoop.hbase.filter">FilterBase</a></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>
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<pre>public&nbsp;boolean&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/filter/WhileMatchFilter.html#line.63">filterAllRemaining</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:&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/filter/FilterBase.html#filterAllRemaining--">FilterBase</a></code></span></div>
<div class="block">Filters that never filter all remaining can inherit this implementation that
never stops the filter early.
If this returns true, the scan will terminate.
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>
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<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="../../../../../org/apache/hadoop/hbase/filter/FilterBase.html#filterAllRemaining--">filterAllRemaining</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/filter/FilterBase.html" title="class in org.apache.hadoop.hbase.filter">FilterBase</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>true to end scan, false to continue.</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>
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<pre>public&nbsp;boolean&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/filter/WhileMatchFilter.html#line.68">filterRowKey</a>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>&nbsp;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:&nbsp;<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><a href="../../../../../org/apache/hadoop/hbase/filter/FilterBase.html#filterRowKey-org.apache.hadoop.hbase.Cell-">filterRowKey</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/filter/FilterBase.html" title="class in org.apache.hadoop.hbase.filter">FilterBase</a></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>
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<pre>public&nbsp;<a href="../../../../../org/apache/hadoop/hbase/filter/Filter.ReturnCode.html" title="enum in org.apache.hadoop.hbase.filter">Filter.ReturnCode</a>&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/filter/WhileMatchFilter.html#line.76">filterCell</a>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>&nbsp;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:&nbsp;<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>&nbsp;in class&nbsp;<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>
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<pre>public&nbsp;<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/filter/WhileMatchFilter.html#line.83">transformCell</a>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>&nbsp;v)
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:&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/filter/FilterBase.html#transformCell-org.apache.hadoop.hbase.Cell-">FilterBase</a></code></span></div>
<div class="block">By default no transformation takes place
Give the filter a chance to transform the passed KeyValue. If the Cell is changed a new
Cell object must be returned.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="../../../../../org/apache/hadoop/hbase/filter/FilterBase.html#transformCell-org.apache.hadoop.hbase.Cell-">transformCell</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/filter/FilterBase.html" title="class in org.apache.hadoop.hbase.filter">FilterBase</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>v</code> - the KeyValue in question</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the changed KeyValue</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/KeyValue.html#shallowCopy--"><code>The transformed KeyValue is what is eventually returned to the client. Most filters will
return the passed KeyValue unchanged.</code></a>,
<a href="../../../../../org/apache/hadoop/hbase/filter/KeyOnlyFilter.html#transformCell-org.apache.hadoop.hbase.Cell-"><code>for an example of a
transformation.
Concrete implementers can signal a failure condition in their code by throwing an
{@link IOException}.</code></a></dd>
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<pre>public&nbsp;boolean&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/filter/WhileMatchFilter.html#line.88">filterRow</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:&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/filter/FilterBase.html#filterRow--">FilterBase</a></code></span></div>
<div class="block">Filters that never filter by rows based on previously gathered state from
<a href="../../../../../org/apache/hadoop/hbase/filter/Filter.html#filterCell-org.apache.hadoop.hbase.Cell-"><code>Filter.filterCell(Cell)</code></a> can inherit this implementation that
never filters a row.
Last chance to veto row based on previous <a href="../../../../../org/apache/hadoop/hbase/filter/Filter.html#filterCell-org.apache.hadoop.hbase.Cell-"><code>Filter.filterCell(Cell)</code></a> calls. The filter
needs to retain state then return a particular value for this call if they wish to exclude a
row if a certain column is missing (for example).
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>
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<dd><code><a href="../../../../../org/apache/hadoop/hbase/filter/FilterBase.html#filterRow--">filterRow</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/filter/FilterBase.html" title="class in org.apache.hadoop.hbase.filter">FilterBase</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>true to exclude row, false to include row.</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>
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<pre>public&nbsp;boolean&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/filter/WhileMatchFilter.html#line.95">hasFilterRow</a>()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/filter/FilterBase.html#hasFilterRow--">FilterBase</a></code></span></div>
<div class="block">Fitlers that never filter by modifying the returned List of Cells can
inherit this implementation that does nothing.
Primarily used to check for conflicts with scans(such as scans that do not read a full row at a
time).</div>
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<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="../../../../../org/apache/hadoop/hbase/filter/FilterBase.html#hasFilterRow--">hasFilterRow</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/filter/FilterBase.html" title="class in org.apache.hadoop.hbase.filter">FilterBase</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>True if this filter actively uses filterRowCells(List) or filterRow().</dd>
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<pre>public&nbsp;byte[]&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/filter/WhileMatchFilter.html#line.103">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:&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/filter/FilterBase.html#toByteArray--">FilterBase</a></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><a href="../../../../../org/apache/hadoop/hbase/filter/FilterBase.html#toByteArray--">toByteArray</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/filter/FilterBase.html" title="class in org.apache.hadoop.hbase.filter">FilterBase</a></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>
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<pre>public static&nbsp;<a href="../../../../../org/apache/hadoop/hbase/filter/WhileMatchFilter.html" title="class in org.apache.hadoop.hbase.filter">WhileMatchFilter</a>&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/filter/WhileMatchFilter.html#line.116">parseFrom</a>(byte[]&nbsp;pbBytes)
throws <a href="../../../../../org/apache/hadoop/hbase/exceptions/DeserializationException.html" title="class in org.apache.hadoop.hbase.exceptions">DeserializationException</a></pre>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>pbBytes</code> - A pb serialized <a href="../../../../../org/apache/hadoop/hbase/filter/WhileMatchFilter.html" title="class in org.apache.hadoop.hbase.filter"><code>WhileMatchFilter</code></a> instance</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>An instance of <a href="../../../../../org/apache/hadoop/hbase/filter/WhileMatchFilter.html" title="class in org.apache.hadoop.hbase.filter"><code>WhileMatchFilter</code></a> made from <code>bytes</code></dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../../org/apache/hadoop/hbase/exceptions/DeserializationException.html" title="class in org.apache.hadoop.hbase.exceptions">DeserializationException</a></code></dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../org/apache/hadoop/hbase/filter/WhileMatchFilter.html#toByteArray--"><code>toByteArray()</code></a></dd>
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<pre>boolean&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/filter/WhileMatchFilter.html#line.137">areSerializedFieldsEqual</a>(<a href="../../../../../org/apache/hadoop/hbase/filter/Filter.html" title="class in org.apache.hadoop.hbase.filter">Filter</a>&nbsp;o)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/filter/FilterBase.html#areSerializedFieldsEqual-org.apache.hadoop.hbase.filter.Filter-">FilterBase</a></code></span></div>
<div class="block">Default implementation so that writers of custom filters aren't forced to implement.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="../../../../../org/apache/hadoop/hbase/filter/FilterBase.html#areSerializedFieldsEqual-org.apache.hadoop.hbase.filter.Filter-">areSerializedFieldsEqual</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/filter/FilterBase.html" title="class in org.apache.hadoop.hbase.filter">FilterBase</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>o</code> - the other filter to compare with</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>true if and only if the fields of the filter that are serialized
are equal to the corresponding fields in other. Used for testing.</dd>
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<pre>public&nbsp;boolean&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/filter/WhileMatchFilter.html#line.146">isFamilyEssential</a>(byte[]&nbsp;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:&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/filter/FilterBase.html#isFamilyEssential-byte:A-">FilterBase</a></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>
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<dd><code><a href="../../../../../org/apache/hadoop/hbase/filter/FilterBase.html#isFamilyEssential-byte:A-">isFamilyEssential</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/filter/FilterBase.html" title="class in org.apache.hadoop.hbase.filter">FilterBase</a></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>
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<pre>public&nbsp;<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>&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/filter/WhileMatchFilter.html#line.151">toString</a>()</pre>
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<div class="block">Return filter's info for debugging and logging purpose.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="../../../../../org/apache/hadoop/hbase/filter/FilterBase.html#toString--">toString</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/filter/FilterBase.html" title="class in org.apache.hadoop.hbase.filter">FilterBase</a></code></dd>
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<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>&nbsp;in class&nbsp;<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&nbsp;int&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/filter/WhileMatchFilter.html#line.161">hashCode</a>()</pre>
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<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>&nbsp;in class&nbsp;<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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