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From md...@apache.org
Subject [07/52] [partial] hbase-site git commit: HBASE-21114 Include 2.1 Release Docs
Date Fri, 12 Oct 2018 20:04:32 GMT
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/ec4814ee/2.1/apidocs/org/apache/hadoop/hbase/KeyValueUtil.html
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+<li>概要:&nbsp;</li>
+<li>嵌套&nbsp;|&nbsp;</li>
+<li>字段&nbsp;|&nbsp;</li>
+<li><a href="#constructor.summary">构造器</a>&nbsp;|&nbsp;</li>
+<li><a href="#method.summary">方法</a></li>
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+<div class="header">
+<div class="subTitle">org.apache.hadoop.hbase</div>
+<h2 title="类 KeyValueUtil" class="title">类 KeyValueUtil</h2>
+</div>
+<div class="contentContainer">
+<ul class="inheritance">
+<li><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="java.lang中的类或接口">java.lang.Object</a></li>
+<li>
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+<pre>@InterfaceAudience.Private
+public class <a href="../../../../src-html/org/apache/hadoop/hbase/KeyValueUtil.html#line.47">KeyValueUtil</a>
+extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="java.lang中的类或接口">Object</a></pre>
+<div class="block">static convenience methods for dealing with KeyValues and collections of KeyValues</div>
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+<tr>
+<th class="colFirst" scope="col">限定符和类型</th>
+<th class="colLast" scope="col">方法和说明</th>
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+<td class="colFirst"><code>static int</code></td>
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+           byte[]&nbsp;output,
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+<td class="colFirst"><code>static int</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/hbase/KeyValueUtil.html#appendKeyTo-org.apache.hadoop.hbase.Cell-java.nio.ByteBuffer-int-">appendKeyTo</a></span>(<a href="../../../../org/apache/hadoop/hbase/Cell.html" title="org.apache.hadoop.hbase中的接口">Cell</a>&nbsp;cell,
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+<td class="colFirst"><code>static int</code></td>
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+                 byte[]&nbsp;output,
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+</td>
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+<td class="colFirst"><code>static void</code></td>
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+                  <a href="../../../../org/apache/hadoop/hbase/KeyValue.html" title="org.apache.hadoop.hbase中的类">KeyValue</a>&nbsp;kv,
+                  boolean&nbsp;includeMvccVersion)</code>&nbsp;</td>
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+<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/nio/ByteBuffer.html?is-external=true" title="java.nio中的类或接口">ByteBuffer</a></code></td>
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+<div class="block">The position will be set to the beginning of the new ByteBuffer</div>
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+<td class="colFirst"><code>static byte[]</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/hadoop/hbase/KeyValueUtil.html#copyToNewByteArray-org.apache.hadoop.hbase.Cell-">copyToNewByteArray</a></span>(<a href="../../../../org/apache/hadoop/hbase/Cell.html" title="org.apache.hadoop.hbase中的接口">Cell</a>&nbsp;cell)</code>&nbsp;</td>
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+<tr id="i7" class="rowColor">
+<td class="colFirst"><code>static <a href="../../../../org/apache/hadoop/hbase/KeyValue.html" title="org.apache.hadoop.hbase中的类">KeyValue</a></code></td>
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+<div class="block">copy the cell to create a new keyvalue</div>
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+<div class="block">Create a KeyValue reading <code>length</code> from <code>in</code></div>
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+<div class="block">Create a KeyValue for the specified row, family and qualifier that would be
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+<div class="block">Create a KeyValue for the specified row, family and qualifier that would be
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+<div class="block">Create a KeyValue for the specified row, family and qualifier that would be
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+<div class="block">Creates a KeyValue that is smaller than all other KeyValues that
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+<div class="block">Create a KeyValue for the specified row, family and qualifier that would be
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+                                       int&nbsp;roffset,
+                                       int&nbsp;rlength,
+                                       byte[]&nbsp;family,
+                                       int&nbsp;foffset,
+                                       int&nbsp;flength,
+                                       byte[]&nbsp;qualifier,
+                                       int&nbsp;qoffset,
+                                       int&nbsp;qlength)</pre>
+<div class="block">Create a KeyValue for the specified row, family and qualifier that would be
+ larger than or equal to all other possible KeyValues that have the same
+ row, family, qualifier. Used for reseeking. Should NEVER be returned to a client.</div>
+<dl>
+<dt><span class="paramLabel">参数:</span></dt>
+<dd><code>row</code> - row key</dd>
+<dd><code>roffset</code> - row offset</dd>
+<dd><code>rlength</code> - row length</dd>
+<dd><code>family</code> - family name</dd>
+<dd><code>foffset</code> - family offset</dd>
+<dd><code>flength</code> - family length</dd>
+<dd><code>qualifier</code> - column qualifier</dd>
+<dd><code>qoffset</code> - qualifier offset</dd>
+<dd><code>qlength</code> - qualifier length</dd>
+<dt><span class="returnLabel">返回:</span></dt>
+<dd>Last possible key on passed row, family, qualifier.</dd>
+</dl>
+</li>
+</ul>
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+                                        int&nbsp;roffset,
+                                        short&nbsp;rlength)</pre>
+<div class="block">Create a KeyValue that is smaller than all other possible KeyValues
+ for the given row. That is any (valid) KeyValue on 'row' would sort
+ _after_ the result.</div>
+<dl>
+<dt><span class="paramLabel">参数:</span></dt>
+<dd><code>row</code> - - row key (arbitrary byte array)</dd>
+<dt><span class="returnLabel">返回:</span></dt>
+<dd>First possible KeyValue on passed <code>row</code></dd>
+</dl>
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+<div class="block">Creates a KeyValue that is last on the specified row id. That is,
+ every other possible KeyValue for the given row would compareTo()
+ less than the result of this call.</div>
+<dl>
+<dt><span class="paramLabel">参数:</span></dt>
+<dd><code>row</code> - row key</dd>
+<dt><span class="returnLabel">返回:</span></dt>
+<dd>Last possible KeyValue on passed <code>row</code></dd>
+</dl>
+</li>
+</ul>
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+<div class="block">Create a KeyValue that is smaller than all other possible KeyValues
+ for the given row. That is any (valid) KeyValue on 'row' would sort
+ _after_ the result.</div>
+<dl>
+<dt><span class="paramLabel">参数:</span></dt>
+<dd><code>row</code> - - row key (arbitrary byte array)</dd>
+<dt><span class="returnLabel">返回:</span></dt>
+<dd>First possible KeyValue on passed <code>row</code></dd>
+</dl>
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+</ul>
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+                                        long&nbsp;ts)</pre>
+<div class="block">Creates a KeyValue that is smaller than all other KeyValues that
+ are older than the passed timestamp.</div>
+<dl>
+<dt><span class="paramLabel">参数:</span></dt>
+<dd><code>row</code> - - row key (arbitrary byte array)</dd>
+<dd><code>ts</code> - - timestamp</dd>
+<dt><span class="returnLabel">返回:</span></dt>
+<dd>First possible key on passed <code>row</code> and timestamp.</dd>
+</dl>
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+                                        byte[]&nbsp;family,
+                                        byte[]&nbsp;qualifier)</pre>
+<div class="block">Create a KeyValue for the specified row, family and qualifier that would be
+ smaller than all other possible KeyValues that have the same row,family,qualifier.
+ Used for seeking.</div>
+<dl>
+<dt><span class="paramLabel">参数:</span></dt>
+<dd><code>row</code> - - row key (arbitrary byte array)</dd>
+<dd><code>family</code> - - family name</dd>
+<dd><code>qualifier</code> - - column qualifier</dd>
+<dt><span class="returnLabel">返回:</span></dt>
+<dd>First possible key on passed <code>row</code>, and column.</dd>
+</dl>
+</li>
+</ul>
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+                                        byte[]&nbsp;f,
+                                        byte[]&nbsp;q,
+                                        long&nbsp;ts)</pre>
+<dl>
+<dt><span class="paramLabel">参数:</span></dt>
+<dd><code>row</code> - - row key (arbitrary byte array)</dd>
+<dd><code>f</code> - - family name</dd>
+<dd><code>q</code> - - column qualifier</dd>
+<dd><code>ts</code> - - timestamp</dd>
+<dt><span class="returnLabel">返回:</span></dt>
+<dd>First possible key on passed <code>row</code>, column and timestamp</dd>
+</dl>
+</li>
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+                                        int&nbsp;roffset,
+                                        int&nbsp;rlength,
+                                        byte[]&nbsp;family,
+                                        int&nbsp;foffset,
+                                        int&nbsp;flength,
+                                        byte[]&nbsp;qualifier,
+                                        int&nbsp;qoffset,
+                                        int&nbsp;qlength)</pre>
+<div class="block">Create a KeyValue for the specified row, family and qualifier that would be
+ smaller than all other possible KeyValues that have the same row,
+ family, qualifier.
+ Used for seeking.</div>
+<dl>
+<dt><span class="paramLabel">参数:</span></dt>
+<dd><code>row</code> - row key</dd>
+<dd><code>roffset</code> - row offset</dd>
+<dd><code>rlength</code> - row length</dd>
+<dd><code>family</code> - family name</dd>
+<dd><code>foffset</code> - family offset</dd>
+<dd><code>flength</code> - family length</dd>
+<dd><code>qualifier</code> - column qualifier</dd>
+<dd><code>qoffset</code> - qualifier offset</dd>
+<dd><code>qlength</code> - qualifier length</dd>
+<dt><span class="returnLabel">返回:</span></dt>
+<dd>First possible key on passed Row, Family, Qualifier.</dd>
+</dl>
+</li>
+</ul>
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+                                        byte[]&nbsp;row,
+                                        byte[]&nbsp;family,
+                                        byte[]&nbsp;qualifier)
+                                 throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="java.lang中的类或接口">IllegalArgumentException</a></pre>
+<div class="block">Create a KeyValue for the specified row, family and qualifier that would be
+ smaller than all other possible KeyValues that have the same row,
+ family, qualifier.
+ Used for seeking.</div>
+<dl>
+<dt><span class="paramLabel">参数:</span></dt>
+<dd><code>buffer</code> - the buffer to use for the new <code>KeyValue</code> object</dd>
+<dd><code>row</code> - the value key</dd>
+<dd><code>family</code> - family name</dd>
+<dd><code>qualifier</code> - column qualifier</dd>
+<dt><span class="returnLabel">返回:</span></dt>
+<dd>First possible key on passed Row, Family, Qualifier.</dd>
+<dt><span class="throwsLabel">抛出:</span></dt>
+<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="java.lang中的类或接口">IllegalArgumentException</a></code> - The resulting <code>KeyValue</code> object would be larger
+ than the provided buffer or than <code>Integer.MAX_VALUE</code></dd>
+</dl>
+</li>
+</ul>
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+                                        int&nbsp;boffset,
+                                        byte[]&nbsp;row,
+                                        int&nbsp;roffset,
+                                        int&nbsp;rlength,
+                                        byte[]&nbsp;family,
+                                        int&nbsp;foffset,
+                                        int&nbsp;flength,
+                                        byte[]&nbsp;qualifier,
+                                        int&nbsp;qoffset,
+                                        int&nbsp;qlength)
+                                 throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="java.lang中的类或接口">IllegalArgumentException</a></pre>
+<div class="block">Create a KeyValue for the specified row, family and qualifier that would be
+ smaller than all other possible KeyValues that have the same row,
+ family, qualifier.
+ Used for seeking.</div>
+<dl>
+<dt><span class="paramLabel">参数:</span></dt>
+<dd><code>buffer</code> - the buffer to use for the new <code>KeyValue</code> object</dd>
+<dd><code>boffset</code> - buffer offset</dd>
+<dd><code>row</code> - the value key</dd>
+<dd><code>roffset</code> - row offset</dd>
+<dd><code>rlength</code> - row length</dd>
+<dd><code>family</code> - family name</dd>
+<dd><code>foffset</code> - family offset</dd>
+<dd><code>flength</code> - family length</dd>
+<dd><code>qualifier</code> - column qualifier</dd>
+<dd><code>qoffset</code> - qualifier offset</dd>
+<dd><code>qlength</code> - qualifier length</dd>
+<dt><span class="returnLabel">返回:</span></dt>
+<dd>First possible key on passed Row, Family, Qualifier.</dd>
+<dt><span class="throwsLabel">抛出:</span></dt>
+<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="java.lang中的类或接口">IllegalArgumentException</a></code> - The resulting <code>KeyValue</code> object would be larger
+ than the provided buffer or than <code>Integer.MAX_VALUE</code></dd>
+</dl>
+</li>
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+public static&nbsp;<a href="../../../../org/apache/hadoop/hbase/KeyValue.html" title="org.apache.hadoop.hbase中的类">KeyValue</a>&nbsp;<a href="../../../../src-html/org/apache/hadoop/hbase/KeyValueUtil.html#line.475">ensureKeyValue</a>(<a href="../../../../org/apache/hadoop/hbase/Cell.html" title="org.apache.hadoop.hbase中的接口">Cell</a>&nbsp;cell)</pre>
+<div class="block"><span class="deprecatedLabel">已过时。</span>&nbsp;<span class="deprecationComment">without any replacement.</span></div>
+<dl>
+<dt><span class="paramLabel">参数:</span></dt>
+<dd><code>cell</code> - </dd>
+<dt><span class="returnLabel">返回:</span></dt>
+<dd><code>cell</code> if it is an object of class <a href="../../../../org/apache/hadoop/hbase/KeyValue.html" title="org.apache.hadoop.hbase中的类"><code>KeyValue</code></a> else we will return a
+         new <a href="../../../../org/apache/hadoop/hbase/KeyValue.html" title="org.apache.hadoop.hbase中的类"><code>KeyValue</code></a> instance made from <code>cell</code> Note: Even if the cell is an
+         object of any of the subclass of <a href="../../../../org/apache/hadoop/hbase/KeyValue.html" title="org.apache.hadoop.hbase中的类"><code>KeyValue</code></a>, we will create a new
+         <a href="../../../../org/apache/hadoop/hbase/KeyValue.html" title="org.apache.hadoop.hbase中的类"><code>KeyValue</code></a> object wrapping same buffer. This API is used only with MR based tools
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+<div class="block"><span class="deprecatedLabel">已过时。</span>&nbsp;</div>
+</li>
+</ul>
+<a name="write-org.apache.hadoop.hbase.KeyValue-java.io.DataOutput-">
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+                         <a href="https://docs.oracle.com/javase/8/docs/api/java/io/DataOutput.html?is-external=true" title="java.io中的类或接口">DataOutput</a>&nbsp;out)
+                  throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="java.io中的类或接口">IOException</a></pre>
+<div class="block">Write out a KeyValue in the manner in which we used to when KeyValue was a
+ Writable.</div>
+<dl>
+<dt><span class="paramLabel">参数:</span></dt>
+<dd><code>kv</code> - </dd>
+<dd><code>out</code> - </dd>
+<dt><span class="returnLabel">返回:</span></dt>
+<dd>Length written on stream</dd>
+<dt><span class="throwsLabel">抛出:</span></dt>
+<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="java.io中的类或接口">IOException</a></code></dd>
+<dt><span class="seeLabel">另请参阅:</span></dt>
+<dd><a href="../../../../org/apache/hadoop/hbase/KeyValueUtil.html#create-java.io.DataInput-"><code>for the inverse function</code></a></dd>
+</dl>
+</li>
+</ul>
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+                                boolean&nbsp;withTags)
+                         throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="java.io中的类或接口">IOException</a></pre>
+<div class="block">Create a KeyValue reading from the raw InputStream. Named
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+<dl>
+<dt><span class="paramLabel">参数:</span></dt>
+<dd><code>in</code> - </dd>
+<dd><code>withTags</code> - whether the keyvalue should include tags are not</dd>
+<dt><span class="returnLabel">返回:</span></dt>
+<dd>Created KeyValue OR if we find a length of zero, we will return
+         null which can be useful marking a stream as done.</dd>
+<dt><span class="throwsLabel">抛出:</span></dt>
+<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="java.io中的类或接口">IOException</a></code></dd>
+</dl>
+</li>
+</ul>
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+<dl>
+<dt><span class="paramLabel">参数:</span></dt>
+<dd><code>b</code> - </dd>
+<dt><span class="returnLabel">返回:</span></dt>
+<dd>A KeyValue made of a byte array that holds the key-only part.
+         Needed to convert hfile index members to KeyValues.</dd>
+</dl>
+</li>
+</ul>
+<a name="createKeyValueFromKey-java.nio.ByteBuffer-">
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+<dl>
+<dt><span class="paramLabel">参数:</span></dt>
+<dd><code>bb</code> - </dd>
+<dt><span class="returnLabel">返回:</span></dt>
+<dd>A KeyValue made of a byte buffer that holds the key-only part.
+         Needed to convert hfile index members to KeyValues.</dd>
+</dl>
+</li>
+</ul>
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+                                             int&nbsp;o,
+                                             int&nbsp;l)</pre>
+<dl>
+<dt><span class="paramLabel">参数:</span></dt>
+<dd><code>b</code> - </dd>
+<dd><code>o</code> - </dd>
+<dd><code>l</code> - </dd>
+<dt><span class="returnLabel">返回:</span></dt>
+<dd>A KeyValue made of a byte array that holds the key-only part.
+         Needed to convert hfile index members to KeyValues.</dd>
+</dl>
+</li>
+</ul>
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+                       throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="java.io中的类或接口">IOException</a></pre>
+<dl>
+<dt><span class="paramLabel">参数:</span></dt>
+<dd><code>in</code> - Where to read bytes from. Creates a byte array to hold the
+          KeyValue backing bytes copied from the steam.</dd>
+<dt><span class="returnLabel">返回:</span></dt>
+<dd>KeyValue created by deserializing from <code>in</code> OR if we
+         find a length of zero, we will return null which can be useful
+         marking a stream as done.</dd>
+<dt><span class="throwsLabel">抛出:</span></dt>
+<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="java.io中的类或接口">IOException</a></code></dd>
+</dl>
+</li>
+</ul>
+<a name="create-int-java.io.DataInput-">
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+</a>
+<ul class="blockList">
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+<h4>create</h4>
+<pre>public static&nbsp;<a href="../../../../org/apache/hadoop/hbase/KeyValue.html" title="org.apache.hadoop.hbase中的类">KeyValue</a>&nbsp;<a href="../../../../src-html/org/apache/hadoop/hbase/KeyValueUtil.html#line.609">create</a>(int&nbsp;length,
+                              <a href="https://docs.oracle.com/javase/8/docs/api/java/io/DataInput.html?is-external=true" title="java.io中的类或接口">DataInput</a>&nbsp;in)
+                       throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="java.io中的类或接口">IOException</a></pre>
+<div class="block">Create a KeyValue reading <code>length</code> from <code>in</code></div>
+<dl>
+<dt><span class="paramLabel">参数:</span></dt>
+<dd><code>length</code> - </dd>
+<dd><code>in</code> - </dd>
+<dt><span class="returnLabel">返回:</span></dt>
+<dd>Created KeyValue OR if we find a length of zero, we will return
+         null which can be useful marking a stream as done.</dd>
+<dt><span class="throwsLabel">抛出:</span></dt>
+<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="java.io中的类或接口">IOException</a></code></dd>
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+<h4>getSerializedSize</h4>
+<pre>public static&nbsp;int&nbsp;<a href="../../../../src-html/org/apache/hadoop/hbase/KeyValueUtil.html#line.624">getSerializedSize</a>(<a href="../../../../org/apache/hadoop/hbase/Cell.html" title="org.apache.hadoop.hbase中的接口">Cell</a>&nbsp;cell,
+                                    boolean&nbsp;withTags)</pre>
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+                          <a href="https://docs.oracle.com/javase/8/docs/api/java/io/OutputStream.html?is-external=true" title="java.io中的类或接口">OutputStream</a>&nbsp;out,
+                          boolean&nbsp;withTags)
+                   throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="java.io中的类或接口">IOException</a></pre>
+<dl>
+<dt><span class="throwsLabel">抛出:</span></dt>
+<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="java.io中的类或接口">IOException</a></code></dd>
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