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<div class="subTitle">org.apache.orc.util</div>
<h2 title="Class Murmur3" class="title">Class Murmur3</h2>
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<pre>public class <span class="typeNameLabel">Murmur3</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></pre>
<div class="block">Murmur3 is successor to Murmur2 fast non-crytographic hash algorithms.
 <p>
 Murmur3 32 and 128 bit variants.
 32-bit Java port of https://code.google.com/p/smhasher/source/browse/trunk/MurmurHash3.cpp#94
 128-bit Java port of https://code.google.com/p/smhasher/source/browse/trunk/MurmurHash3.cpp#255
 <p>
 This is a public domain code with no copyrights.
 From homepage of MurmurHash (https://code.google.com/p/smhasher/),
 "All MurmurHash versions are public domain software, and the author disclaims all copyright
 to their code."</div>
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<td class="colFirst"><code>static long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/orc/util/Murmur3.html#NULL_HASHCODE">NULL_HASHCODE</a></span></code>&nbsp;</td>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/apache/orc/util/Murmur3.html#Murmur3--">Murmur3</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>static long[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/orc/util/Murmur3.html#hash128-byte:A-">hash128</a></span>(byte[]&nbsp;data)</code>
<div class="block">Murmur3 128-bit variant.</div>
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<td class="colFirst"><code>static long[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/orc/util/Murmur3.html#hash128-byte:A-int-int-int-">hash128</a></span>(byte[]&nbsp;data,
       int&nbsp;offset,
       int&nbsp;length,
       int&nbsp;seed)</code>
<div class="block">Murmur3 128-bit variant.</div>
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<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/orc/util/Murmur3.html#hash32-byte:A-">hash32</a></span>(byte[]&nbsp;data)</code>
<div class="block">Murmur3 32-bit variant.</div>
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<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/orc/util/Murmur3.html#hash32-byte:A-int-int-">hash32</a></span>(byte[]&nbsp;data,
      int&nbsp;length,
      int&nbsp;seed)</code>
<div class="block">Murmur3 32-bit variant.</div>
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<td class="colFirst"><code>static long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/orc/util/Murmur3.html#hash64-byte:A-">hash64</a></span>(byte[]&nbsp;data)</code>
<div class="block">Murmur3 64-bit variant.</div>
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<td class="colFirst"><code>static long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/orc/util/Murmur3.html#hash64-byte:A-int-int-">hash64</a></span>(byte[]&nbsp;data,
      int&nbsp;offset,
      int&nbsp;length)</code>&nbsp;</td>
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<td class="colFirst"><code>static long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/orc/util/Murmur3.html#hash64-byte:A-int-int-int-">hash64</a></span>(byte[]&nbsp;data,
      int&nbsp;offset,
      int&nbsp;length,
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<div class="block">Murmur3 64-bit variant.</div>
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<h4>NULL_HASHCODE</h4>
<pre>public static final&nbsp;long NULL_HASHCODE</pre>
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<dd><a href="../../../../constant-values.html#org.apache.orc.util.Murmur3.NULL_HASHCODE">Constant Field Values</a></dd>
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<pre>public&nbsp;Murmur3()</pre>
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<pre>public static&nbsp;int&nbsp;hash32(byte[]&nbsp;data)</pre>
<div class="block">Murmur3 32-bit variant.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>data</code> - - input byte array</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>- hashcode</dd>
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<pre>public static&nbsp;int&nbsp;hash32(byte[]&nbsp;data,
                         int&nbsp;length,
                         int&nbsp;seed)</pre>
<div class="block">Murmur3 32-bit variant.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>data</code> - - input byte array</dd>
<dd><code>length</code> - - length of array</dd>
<dd><code>seed</code> - - seed. (default 0)</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>- hashcode</dd>
</dl>
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<pre>public static&nbsp;long&nbsp;hash64(byte[]&nbsp;data)</pre>
<div class="block">Murmur3 64-bit variant. This is essentially MSB 8 bytes of Murmur3 128-bit variant.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>data</code> - - input byte array</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>- hashcode</dd>
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<pre>public static&nbsp;long&nbsp;hash64(byte[]&nbsp;data,
                          int&nbsp;offset,
                          int&nbsp;length)</pre>
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<pre>public static&nbsp;long&nbsp;hash64(byte[]&nbsp;data,
                          int&nbsp;offset,
                          int&nbsp;length,
                          int&nbsp;seed)</pre>
<div class="block">Murmur3 64-bit variant. This is essentially MSB 8 bytes of Murmur3 128-bit variant.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>data</code> - - input byte array</dd>
<dd><code>length</code> - - length of array</dd>
<dd><code>seed</code> - - seed. (default is 0)</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>- hashcode</dd>
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<pre>public static&nbsp;long[]&nbsp;hash128(byte[]&nbsp;data)</pre>
<div class="block">Murmur3 128-bit variant.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>data</code> - - input byte array</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>- hashcode (2 longs)</dd>
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<pre>public static&nbsp;long[]&nbsp;hash128(byte[]&nbsp;data,
                             int&nbsp;offset,
                             int&nbsp;length,
                             int&nbsp;seed)</pre>
<div class="block">Murmur3 128-bit variant.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>data</code> - - input byte array</dd>
<dd><code>offset</code> - - the first element of array</dd>
<dd><code>length</code> - - length of array</dd>
<dd><code>seed</code> - - seed. (default is 0)</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>- hashcode (2 longs)</dd>
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