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<div class="subTitle">org.apache.accumulo.core.data</div>
<h2 title="Class Value" class="title">Class Value</h2>
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<dt>All Implemented Interfaces:</dt>
<dd><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Comparable.html?is-external=true" title="class or interface in java.lang">Comparable</a>&lt;<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>&gt;, org.apache.hadoop.io.Writable, org.apache.hadoop.io.WritableComparable&lt;<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>&gt;</dd>
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<pre>public class <span class="typeNameLabel">Value</span>
extends <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>
implements org.apache.hadoop.io.WritableComparable&lt;<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>&gt;</pre>
<div class="block">A byte sequence that is usable as a key or value. Based on
<code>BytesWritable</code> only this class is NOT resizable and DOES NOT
distinguish between the size of the sequence and the current capacity as
<code>BytesWritable</code> does. Hence it is comparatively 'immutable'.</div>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Class and Description</th>
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<tr class="altColor">
<td class="colFirst"><code>static class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/accumulo/core/data/Value.Comparator.html" title="class in org.apache.accumulo.core.data">Value.Comparator</a></span></code>
<div class="block">A Comparator optimized for Value.</div>
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<td class="colFirst"><code>protected byte[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/accumulo/core/data/Value.html#value">value</a></span></code>&nbsp;</td>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/accumulo/core/data/Value.html#Value--">Value</a></span>()</code>
<div class="block">Creates a zero-size sequence.</div>
</td>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/accumulo/core/data/Value.html#Value-byte:A-">Value</a></span>(byte[]&nbsp;bytes)</code>
<div class="block">Creates a Value using a byte array as the initial value.</div>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/accumulo/core/data/Value.html#Value-byte:A-boolean-">Value</a></span>(byte[]&nbsp;bytes,
boolean&nbsp;copy)</code>
<div class="block">Creates a Value using a byte array as the initial value.</div>
</td>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/accumulo/core/data/Value.html#Value-byte:A-int-int-">Value</a></span>(byte[]&nbsp;newData,
int&nbsp;offset,
int&nbsp;length)</code>
<div class="block">Creates a Value based on a range in a byte array.</div>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/accumulo/core/data/Value.html#Value-java.nio.ByteBuffer-">Value</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>&nbsp;bytes)</code>
<div class="block">Creates a Value using the bytes in a buffer as the initial value.</div>
</td>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/accumulo/core/data/Value.html#Value-java.nio.ByteBuffer-boolean-">Value</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>&nbsp;bytes,
boolean&nbsp;copy)</code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;
<div class="block"><span class="deprecationComment">A copy of the bytes in the buffer is always made. Use <a href="../../../../../org/apache/accumulo/core/data/Value.html#Value-java.nio.ByteBuffer-"><code>Value(ByteBuffer)</code></a>
instead.</span></div>
</div>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/accumulo/core/data/Value.html#Value-java.lang.CharSequence-">Value</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/CharSequence.html?is-external=true" title="class or interface in java.lang">CharSequence</a>&nbsp;cs)</code>
<div class="block">Creates a value using the UTF-8 encoding of the CharSequence</div>
</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/accumulo/core/data/Value.html#Value-org.apache.hadoop.io.Text-">Value</a></span>(org.apache.hadoop.io.Text&nbsp;text)</code>
<div class="block">Creates a Value using the bytes of the Text.</div>
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<tr class="altColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/accumulo/core/data/Value.html#Value-org.apache.accumulo.core.data.Value-">Value</a></span>(<a href="../../../../../org/apache/accumulo/core/data/Value.html" title="class in org.apache.accumulo.core.data">Value</a>&nbsp;ibw)</code>
<div class="block">Creates a new Value based on another.</div>
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<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/accumulo/core/data/Value.html#compareTo-byte:A-">compareTo</a></span>(byte[]&nbsp;that)</code>
<div class="block">Compares the bytes in this object to the specified byte array</div>
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<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/accumulo/core/data/Value.html#compareTo-java.lang.Object-">compareTo</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;right_obj)</code>
<div class="block">Define the sort order of the BytesWritable.</div>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/accumulo/core/data/Value.html#copy-byte:A-">copy</a></span>(byte[]&nbsp;b)</code>
<div class="block">Sets the byte data of this value.</div>
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<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/accumulo/core/data/Value.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;right_obj)</code>&nbsp;</td>
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<td class="colFirst"><code>byte[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/accumulo/core/data/Value.html#get--">get</a></span>()</code>
<div class="block">Gets the byte data of this value.</div>
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<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/accumulo/core/data/Value.html#getSize--">getSize</a></span>()</code>
<div class="block">Gets the size of this value.</div>
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<tr id="i6" class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/accumulo/core/data/Value.html#hashCode--">hashCode</a></span>()</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/accumulo/core/data/Value.html#readFields-java.io.DataInput-">readFields</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/io/DataInput.html?is-external=true" title="class or interface in java.io">DataInput</a>&nbsp;in)</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/accumulo/core/data/Value.html#set-byte:A-">set</a></span>(byte[]&nbsp;b)</code>
<div class="block">Sets the byte data of this value.</div>
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<tr id="i9" class="rowColor">
<td class="colFirst"><code>static byte[][]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/accumulo/core/data/Value.html#toArray-java.util.List-">toArray</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;byte[]&gt;&nbsp;array)</code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;
<div class="block"><span class="deprecationComment">since 1.7.0; this utility method is not appropriate for the <a href="../../../../../org/apache/accumulo/core/data/Value.html" title="class in org.apache.accumulo.core.data"><code>Value</code></a> object</span></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/accumulo/core/data/Value.html#toString--">toString</a></span>()</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/accumulo/core/data/Value.html#write-java.io.DataOutput-">write</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/io/DataOutput.html?is-external=true" title="class or interface in java.io">DataOutput</a>&nbsp;out)</code>&nbsp;</td>
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<h3>Methods inherited from class&nbsp;java.lang.<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></h3>
<code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li>
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<h4>value</h4>
<pre>protected&nbsp;byte[] value</pre>
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<h4>Value</h4>
<pre>public&nbsp;Value()</pre>
<div class="block">Creates a zero-size sequence.</div>
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<pre>public&nbsp;Value(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/CharSequence.html?is-external=true" title="class or interface in java.lang">CharSequence</a>&nbsp;cs)</pre>
<div class="block">Creates a value using the UTF-8 encoding of the CharSequence</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>cs</code> - may not be null</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>1.8.0</dd>
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<pre>public&nbsp;Value(org.apache.hadoop.io.Text&nbsp;text)</pre>
<div class="block">Creates a Value using the bytes of the Text. Makes a copy, does not use the byte array from the
Text.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>text</code> - may not be null</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>1.8.0</dd>
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<pre>public&nbsp;Value(byte[]&nbsp;bytes)</pre>
<div class="block">Creates a Value using a byte array as the initial value. The given byte array is used directly
as the backing array, so later changes made to the array reflect into the new Value.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>bytes</code> - May not be null</dd>
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<pre>public&nbsp;Value(<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>&nbsp;bytes)</pre>
<div class="block">Creates a Value using the bytes in a buffer as the initial value. Makes a defensive copy.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>bytes</code> - May not be null</dd>
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<pre><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Deprecated.html?is-external=true" title="class or interface in java.lang">@Deprecated</a>
public&nbsp;Value(<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>&nbsp;bytes,
boolean&nbsp;copy)</pre>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;<span class="deprecationComment">A copy of the bytes in the buffer is always made. Use <a href="../../../../../org/apache/accumulo/core/data/Value.html#Value-java.nio.ByteBuffer-"><code>Value(ByteBuffer)</code></a>
instead.</span></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>bytes</code> - bytes of value (may not be null)</dd>
<dd><code>copy</code> - false to use the backing array of the buffer directly as the backing array, true to
force a copy</dd>
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<h4>Value</h4>
<pre>public&nbsp;Value(byte[]&nbsp;bytes,
boolean&nbsp;copy)</pre>
<div class="block">Creates a Value using a byte array as the initial value.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>bytes</code> - may not be null</dd>
<dd><code>copy</code> - false to use the given byte array directly as the backing array, true to force a copy</dd>
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<pre>public&nbsp;Value(<a href="../../../../../org/apache/accumulo/core/data/Value.html" title="class in org.apache.accumulo.core.data">Value</a>&nbsp;ibw)</pre>
<div class="block">Creates a new Value based on another.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>ibw</code> - may not be null.</dd>
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<h4>Value</h4>
<pre>public&nbsp;Value(byte[]&nbsp;newData,
int&nbsp;offset,
int&nbsp;length)</pre>
<div class="block">Creates a Value based on a range in a byte array. A copy of the bytes is always made.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>newData</code> - source of copy, may not be null</dd>
<dd><code>offset</code> - the offset in newData to start with for valye bytes</dd>
<dd><code>length</code> - the number of bytes in the value</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IndexOutOfBoundsException.html?is-external=true" title="class or interface in java.lang">IndexOutOfBoundsException</a></code> - if offset or length are invalid</dd>
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<h3>Method Detail</h3>
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<h4>get</h4>
<pre>public&nbsp;byte[]&nbsp;get()</pre>
<div class="block">Gets the byte data of this value.</div>
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<dt><span class="returnLabel">Returns:</span></dt>
<dd>the underlying byte array directly.</dd>
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<pre>public&nbsp;void&nbsp;set(byte[]&nbsp;b)</pre>
<div class="block">Sets the byte data of this value. The given byte array is used directly as the backing array,
so later changes made to the array reflect into this Value.</div>
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<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>b</code> - may not be null</dd>
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<pre>public&nbsp;void&nbsp;copy(byte[]&nbsp;b)</pre>
<div class="block">Sets the byte data of this value. The given byte array is copied.</div>
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<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>b</code> - may not be null</dd>
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<pre>public&nbsp;int&nbsp;getSize()</pre>
<div class="block">Gets the size of this value.</div>
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<dd>size in bytes</dd>
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<pre>public&nbsp;void&nbsp;readFields(<a href="https://docs.oracle.com/javase/8/docs/api/java/io/DataInput.html?is-external=true" title="class or interface in java.io">DataInput</a>&nbsp;in)
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>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>readFields</code>&nbsp;in interface&nbsp;<code>org.apache.hadoop.io.Writable</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></dd>
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<pre>public&nbsp;void&nbsp;write(<a href="https://docs.oracle.com/javase/8/docs/api/java/io/DataOutput.html?is-external=true" title="class or interface in java.io">DataOutput</a>&nbsp;out)
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>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>write</code>&nbsp;in interface&nbsp;<code>org.apache.hadoop.io.Writable</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></dd>
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<pre>public&nbsp;int&nbsp;hashCode()</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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<pre>public&nbsp;int&nbsp;compareTo(<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;right_obj)</pre>
<div class="block">Define the sort order of the BytesWritable.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Comparable.html?is-external=true#compareTo-T-" title="class or interface in java.lang">compareTo</a></code>&nbsp;in interface&nbsp;<code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Comparable.html?is-external=true" title="class or interface in java.lang">Comparable</a>&lt;<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>&gt;</code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>right_obj</code> - The other bytes writable</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Positive if left is bigger than right, 0 if they are equal, and negative if left is
smaller than right.</dd>
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<pre>public&nbsp;int&nbsp;compareTo(byte[]&nbsp;that)</pre>
<div class="block">Compares the bytes in this object to the specified byte array</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Positive if left is bigger than right, 0 if they are equal, and negative if left is
smaller than right.</dd>
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<pre>public&nbsp;boolean&nbsp;equals(<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;right_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>&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;<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;toString()</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#toString--" title="class or interface in java.lang">toString</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><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Deprecated.html?is-external=true" title="class or interface in java.lang">@Deprecated</a>
public static&nbsp;byte[][]&nbsp;toArray(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;byte[]&gt;&nbsp;array)</pre>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;<span class="deprecationComment">since 1.7.0; this utility method is not appropriate for the <a href="../../../../../org/apache/accumulo/core/data/Value.html" title="class in org.apache.accumulo.core.data"><code>Value</code></a> object</span></div>
<div class="block">Converts a list of byte arrays to a two-dimensional array.</div>
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<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>array</code> - list of byte arrays</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>two-dimensional byte array containing one given byte array per row</dd>
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