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| <div class="subTitle">org.apache.datasketches.hash</div> |
| <h2 title="Class MurmurHash3Adaptor" class="title">Class MurmurHash3Adaptor</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="class or interface in java.lang">java.lang.Object</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.datasketches.hash.MurmurHash3Adaptor</li> |
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| <pre>public final class <span class="typeNameLabel">MurmurHash3Adaptor</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">A general purpose wrapper for the MurmurHash3. |
| <ul> |
| <li>Inputs can be long, long[], int[], char[], byte[], double or String.</li> |
| <li>Returns null if arrays or String is null or empty.</li> |
| <li>Provides methods for returning the 128-bit result as either an array of 2 longs or as a byte |
| array of 16 bytes.</li> |
| <li>Provides modulo, asDouble and asInt functions.</li> |
| </ul></div> |
| <dl> |
| <dt><span class="simpleTagLabel">Author:</span></dt> |
| <dd>Lee Rhodes</dd> |
| </dl> |
| </li> |
| </ul> |
| </div> |
| <div class="summary"> |
| <ul class="blockList"> |
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| <!-- ========== METHOD SUMMARY =========== --> |
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| </a> |
| <h3>Method Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation"> |
| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </span></span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Method and Description</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>static double</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/datasketches/hash/MurmurHash3Adaptor.html#asDouble-long:A-">asDouble</a></span>(long[] hash)</code> |
| <div class="block">Returns a uniform random double with a minimum inclusive value of zero and a maximum exclusive |
| value of 1.0.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>static int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/datasketches/hash/MurmurHash3Adaptor.html#asInt-byte:A-int-">asInt</a></span>(byte[] data, |
| int n)</code> |
| <div class="block">Returns a deterministic uniform random integer between zero (inclusive) and |
| n (exclusive) given the input data.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>static int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/datasketches/hash/MurmurHash3Adaptor.html#asInt-double-int-">asInt</a></span>(double datum, |
| int n)</code> |
| <div class="block">Returns a deterministic uniform random integer between zero (inclusive) and |
| n (exclusive) given the input double.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>static int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/datasketches/hash/MurmurHash3Adaptor.html#asInt-int:A-int-">asInt</a></span>(int[] data, |
| int n)</code> |
| <div class="block">Returns a deterministic uniform random integer between zero (inclusive) and |
| n (exclusive) given the input data.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>static int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/datasketches/hash/MurmurHash3Adaptor.html#asInt-long:A-int-">asInt</a></span>(long[] data, |
| int n)</code> |
| <div class="block">Returns a deterministic uniform random integer between zero (inclusive) and |
| n (exclusive) given the input data.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>static int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/datasketches/hash/MurmurHash3Adaptor.html#asInt-long-int-">asInt</a></span>(long datum, |
| int n)</code> |
| <div class="block">Returns a deterministic uniform random integer between zero (inclusive) and |
| n (exclusive) given the input datum.</div> |
| </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>static int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/datasketches/hash/MurmurHash3Adaptor.html#asInt-java.lang.String-int-">asInt</a></span>(<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> datum, |
| int n)</code> |
| <div class="block">Returns a deterministic uniform random integer between zero (inclusive) and |
| n (exclusive) given the input datum.</div> |
| </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>static byte[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/datasketches/hash/MurmurHash3Adaptor.html#hashToBytes-byte:A-long-">hashToBytes</a></span>(byte[] data, |
| long seed)</code> |
| <div class="block">Hash a byte[] and long seed.</div> |
| </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code>static byte[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/datasketches/hash/MurmurHash3Adaptor.html#hashToBytes-char:A-long-">hashToBytes</a></span>(char[] data, |
| long seed)</code> |
| <div class="block">Hash a char[] and long seed.</div> |
| </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code>static byte[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/datasketches/hash/MurmurHash3Adaptor.html#hashToBytes-double-long-">hashToBytes</a></span>(double datum, |
| long seed)</code> |
| <div class="block">Hash a double and long seed.</div> |
| </td> |
| </tr> |
| <tr id="i10" class="altColor"> |
| <td class="colFirst"><code>static byte[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/datasketches/hash/MurmurHash3Adaptor.html#hashToBytes-int:A-long-">hashToBytes</a></span>(int[] data, |
| long seed)</code> |
| <div class="block">Hash an int[] and long seed.</div> |
| </td> |
| </tr> |
| <tr id="i11" class="rowColor"> |
| <td class="colFirst"><code>static byte[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/datasketches/hash/MurmurHash3Adaptor.html#hashToBytes-long:A-long-">hashToBytes</a></span>(long[] data, |
| long seed)</code> |
| <div class="block">Hash a long[] and long seed.</div> |
| </td> |
| </tr> |
| <tr id="i12" class="altColor"> |
| <td class="colFirst"><code>static byte[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/datasketches/hash/MurmurHash3Adaptor.html#hashToBytes-long-long-">hashToBytes</a></span>(long datum, |
| long seed)</code> |
| <div class="block">Hash a long and long seed.</div> |
| </td> |
| </tr> |
| <tr id="i13" class="rowColor"> |
| <td class="colFirst"><code>static byte[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/datasketches/hash/MurmurHash3Adaptor.html#hashToBytes-java.lang.String-long-">hashToBytes</a></span>(<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> datum, |
| long seed)</code> |
| <div class="block">Hash a String and long seed.</div> |
| </td> |
| </tr> |
| <tr id="i14" class="altColor"> |
| <td class="colFirst"><code>static long[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/datasketches/hash/MurmurHash3Adaptor.html#hashToLongs-byte:A-long-">hashToLongs</a></span>(byte[] data, |
| long seed)</code> |
| <div class="block">Hash a byte[] and long seed.</div> |
| </td> |
| </tr> |
| <tr id="i15" class="rowColor"> |
| <td class="colFirst"><code>static long[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/datasketches/hash/MurmurHash3Adaptor.html#hashToLongs-char:A-long-">hashToLongs</a></span>(char[] data, |
| long seed)</code> |
| <div class="block">Hash a char[] and long seed.</div> |
| </td> |
| </tr> |
| <tr id="i16" class="altColor"> |
| <td class="colFirst"><code>static long[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/datasketches/hash/MurmurHash3Adaptor.html#hashToLongs-double-long-">hashToLongs</a></span>(double datum, |
| long seed)</code> |
| <div class="block">Hash a double and long seed.</div> |
| </td> |
| </tr> |
| <tr id="i17" class="rowColor"> |
| <td class="colFirst"><code>static long[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/datasketches/hash/MurmurHash3Adaptor.html#hashToLongs-int:A-long-">hashToLongs</a></span>(int[] data, |
| long seed)</code> |
| <div class="block">Hash a int[] and long seed.</div> |
| </td> |
| </tr> |
| <tr id="i18" class="altColor"> |
| <td class="colFirst"><code>static long[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/datasketches/hash/MurmurHash3Adaptor.html#hashToLongs-long:A-long-">hashToLongs</a></span>(long[] data, |
| long seed)</code> |
| <div class="block">Hash a long[] and long seed.</div> |
| </td> |
| </tr> |
| <tr id="i19" class="rowColor"> |
| <td class="colFirst"><code>static long[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/datasketches/hash/MurmurHash3Adaptor.html#hashToLongs-long-long-">hashToLongs</a></span>(long datum, |
| long seed)</code> |
| <div class="block">Hash a long and long seed.</div> |
| </td> |
| </tr> |
| <tr id="i20" class="altColor"> |
| <td class="colFirst"><code>static long[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/datasketches/hash/MurmurHash3Adaptor.html#hashToLongs-java.lang.String-long-">hashToLongs</a></span>(<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> datum, |
| long seed)</code> |
| <div class="block">Hash a String and long seed.</div> |
| </td> |
| </tr> |
| <tr id="i21" class="rowColor"> |
| <td class="colFirst"><code>static int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/datasketches/hash/MurmurHash3Adaptor.html#modulo-long:A-int-">modulo</a></span>(long[] hash, |
| int divisor)</code> |
| <div class="block">Returns the remainder from the modulo division of the 128-bit output of the murmurHash3 by the |
| divisor.</div> |
| </td> |
| </tr> |
| <tr id="i22" class="altColor"> |
| <td class="colFirst"><code>static int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/datasketches/hash/MurmurHash3Adaptor.html#modulo-long-long-int-">modulo</a></span>(long h0, |
| long h1, |
| int divisor)</code> |
| <div class="block">Returns the remainder from the modulo division of the 128-bit output of the murmurHash3 by the |
| divisor.</div> |
| </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
| <li class="blockList"><a name="methods.inherited.from.class.java.lang.Object"> |
| <!-- --> |
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| <h3>Methods inherited from class 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#equals-java.lang.Object-" title="class or interface in java.lang">equals</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#hashCode--" title="class or interface in java.lang">hashCode</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#toString--" title="class or interface in java.lang">toString</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> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <!-- ============ METHOD DETAIL ========== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="method.detail"> |
| <!-- --> |
| </a> |
| <h3>Method Detail</h3> |
| <a name="hashToBytes-long-long-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>hashToBytes</h4> |
| <pre>public static byte[] hashToBytes(long datum, |
| long seed)</pre> |
| <div class="block">Hash a long and long seed.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>datum</code> - the input long value</dd> |
| <dd><code>seed</code> - A long valued seed.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The 128-bit hash as a byte[16] in Big Endian order from 2 64-bit longs.</dd> |
| </dl> |
| </li> |
| </ul> |
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| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>hashToBytes</h4> |
| <pre>public static byte[] hashToBytes(long[] data, |
| long seed)</pre> |
| <div class="block">Hash a long[] and long seed.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>data</code> - the input long array</dd> |
| <dd><code>seed</code> - A long valued seed.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The 128-bit hash as a byte[16] in Big Endian order from 2 64-bit longs.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="hashToBytes-int:A-long-"> |
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| </a> |
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| <li class="blockList"> |
| <h4>hashToBytes</h4> |
| <pre>public static byte[] hashToBytes(int[] data, |
| long seed)</pre> |
| <div class="block">Hash an int[] and long seed.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>data</code> - the input int array</dd> |
| <dd><code>seed</code> - A long valued seed.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The 128-bit hash as a byte[16] in Big Endian order from 2 64-bit longs.</dd> |
| </dl> |
| </li> |
| </ul> |
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| <h4>hashToBytes</h4> |
| <pre>public static byte[] hashToBytes(char[] data, |
| long seed)</pre> |
| <div class="block">Hash a char[] and long seed.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>data</code> - the input char array</dd> |
| <dd><code>seed</code> - A long valued seed.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The 128-bit hash as a byte[16] in Big Endian order from 2 64-bit longs.</dd> |
| </dl> |
| </li> |
| </ul> |
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| <h4>hashToBytes</h4> |
| <pre>public static byte[] hashToBytes(byte[] data, |
| long seed)</pre> |
| <div class="block">Hash a byte[] and long seed.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>data</code> - the input byte array</dd> |
| <dd><code>seed</code> - A long valued seed.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The 128-bit hash as a byte[16] in Big Endian order from 2 64-bit longs.</dd> |
| </dl> |
| </li> |
| </ul> |
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| <h4>hashToBytes</h4> |
| <pre>public static byte[] hashToBytes(double datum, |
| long seed)</pre> |
| <div class="block">Hash a double and long seed.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>datum</code> - the input double</dd> |
| <dd><code>seed</code> - A long valued seed.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The 128-bit hash as a byte[16] in Big Endian order from 2 64-bit longs.</dd> |
| </dl> |
| </li> |
| </ul> |
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| <pre>public static byte[] hashToBytes(<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> datum, |
| long seed)</pre> |
| <div class="block">Hash a String and long seed.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>datum</code> - the input String</dd> |
| <dd><code>seed</code> - A long valued seed.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The 128-bit hash as a byte[16] in Big Endian order from 2 64-bit longs.</dd> |
| </dl> |
| </li> |
| </ul> |
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| <h4>hashToLongs</h4> |
| <pre>public static long[] hashToLongs(long datum, |
| long seed)</pre> |
| <div class="block">Hash a long and long seed.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>datum</code> - the input long</dd> |
| <dd><code>seed</code> - A long valued seed.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The 128-bit hash as a long[2].</dd> |
| </dl> |
| </li> |
| </ul> |
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| <h4>hashToLongs</h4> |
| <pre>public static long[] hashToLongs(long[] data, |
| long seed)</pre> |
| <div class="block">Hash a long[] and long seed.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>data</code> - the input long array.</dd> |
| <dd><code>seed</code> - A long valued seed.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The 128-bit hash as a long[2].</dd> |
| </dl> |
| </li> |
| </ul> |
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| </a> |
| <ul class="blockList"> |
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| <h4>hashToLongs</h4> |
| <pre>public static long[] hashToLongs(int[] data, |
| long seed)</pre> |
| <div class="block">Hash a int[] and long seed.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>data</code> - the input int array.</dd> |
| <dd><code>seed</code> - A long valued seed.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The 128-bit hash as a long[2].</dd> |
| </dl> |
| </li> |
| </ul> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>hashToLongs</h4> |
| <pre>public static long[] hashToLongs(char[] data, |
| long seed)</pre> |
| <div class="block">Hash a char[] and long seed.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>data</code> - the input char array.</dd> |
| <dd><code>seed</code> - A long valued seed.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The 128-bit hash as a long[2].</dd> |
| </dl> |
| </li> |
| </ul> |
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| </a> |
| <ul class="blockList"> |
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| <h4>hashToLongs</h4> |
| <pre>public static long[] hashToLongs(byte[] data, |
| long seed)</pre> |
| <div class="block">Hash a byte[] and long seed.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>data</code> - the input byte array.</dd> |
| <dd><code>seed</code> - A long valued seed.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The 128-bit hash as a long[2].</dd> |
| </dl> |
| </li> |
| </ul> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>hashToLongs</h4> |
| <pre>public static long[] hashToLongs(double datum, |
| long seed)</pre> |
| <div class="block">Hash a double and long seed.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>datum</code> - the input double.</dd> |
| <dd><code>seed</code> - A long valued seed.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The 128-bit hash as a long[2].</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="hashToLongs-java.lang.String-long-"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>hashToLongs</h4> |
| <pre>public static long[] hashToLongs(<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> datum, |
| long seed)</pre> |
| <div class="block">Hash a String and long seed.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>datum</code> - the input String.</dd> |
| <dd><code>seed</code> - A long valued seed.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The 128-bit hash as a long[2].</dd> |
| </dl> |
| </li> |
| </ul> |
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| </a> |
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| <h4>asInt</h4> |
| <pre>public static int asInt(long[] data, |
| int n)</pre> |
| <div class="block">Returns a deterministic uniform random integer between zero (inclusive) and |
| n (exclusive) given the input data.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>data</code> - the input long array.</dd> |
| <dd><code>n</code> - The upper exclusive bound of the integers produced. Must be > 1.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>deterministic uniform random integer</dd> |
| </dl> |
| </li> |
| </ul> |
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| </a> |
| <ul class="blockList"> |
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| <h4>asInt</h4> |
| <pre>public static int asInt(int[] data, |
| int n)</pre> |
| <div class="block">Returns a deterministic uniform random integer between zero (inclusive) and |
| n (exclusive) given the input data.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>data</code> - the input int array.</dd> |
| <dd><code>n</code> - The upper exclusive bound of the integers produced. Must be > 1.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>deterministic uniform random integer</dd> |
| </dl> |
| </li> |
| </ul> |
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| </a> |
| <ul class="blockList"> |
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| <h4>asInt</h4> |
| <pre>public static int asInt(byte[] data, |
| int n)</pre> |
| <div class="block">Returns a deterministic uniform random integer between zero (inclusive) and |
| n (exclusive) given the input data.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>data</code> - the input byte array.</dd> |
| <dd><code>n</code> - The upper exclusive bound of the integers produced. Must be > 1.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>deterministic uniform random integer.</dd> |
| </dl> |
| </li> |
| </ul> |
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| </a> |
| <ul class="blockList"> |
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| <h4>asInt</h4> |
| <pre>public static int asInt(long datum, |
| int n)</pre> |
| <div class="block">Returns a deterministic uniform random integer between zero (inclusive) and |
| n (exclusive) given the input datum.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>datum</code> - the input long</dd> |
| <dd><code>n</code> - The upper exclusive bound of the integers produced. Must be > 1.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>deterministic uniform random integer</dd> |
| </dl> |
| </li> |
| </ul> |
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| </a> |
| <ul class="blockList"> |
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| <h4>asInt</h4> |
| <pre>public static int asInt(double datum, |
| int n)</pre> |
| <div class="block">Returns a deterministic uniform random integer between zero (inclusive) and |
| n (exclusive) given the input double.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>datum</code> - the given double.</dd> |
| <dd><code>n</code> - The upper exclusive bound of the integers produced. Must be > 1.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>deterministic uniform random integer</dd> |
| </dl> |
| </li> |
| </ul> |
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| </a> |
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| <pre>public static int asInt(<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> datum, |
| int n)</pre> |
| <div class="block">Returns a deterministic uniform random integer between zero (inclusive) and |
| n (exclusive) given the input datum.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>datum</code> - the given String.</dd> |
| <dd><code>n</code> - The upper exclusive bound of the integers produced. Must be > 1.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>deterministic uniform random integer</dd> |
| </dl> |
| </li> |
| </ul> |
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| <!-- --> |
| </a> |
| <ul class="blockList"> |
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| <h4>asDouble</h4> |
| <pre>public static double asDouble(long[] hash)</pre> |
| <div class="block">Returns a uniform random double with a minimum inclusive value of zero and a maximum exclusive |
| value of 1.0. |
| |
| <p>The double values produced are only as random as the MurmurHash3 algorithm, which may be |
| adequate for many applications. However, if you are looking for high guarantees of randomness |
| you should turn to more sophisticated random generators such as Mersenne Twister or Well |
| algorithms.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>hash</code> - The output of the MurmurHash3.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the uniform random double.</dd> |
| </dl> |
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| </a> |
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| <h4>modulo</h4> |
| <pre>public static int modulo(long h0, |
| long h1, |
| int divisor)</pre> |
| <div class="block">Returns the remainder from the modulo division of the 128-bit output of the murmurHash3 by the |
| divisor.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>h0</code> - The lower 64-bits of the 128-bit MurmurHash3 hash.</dd> |
| <dd><code>h1</code> - The upper 64-bits of the 128-bit MurmurHash3 hash.</dd> |
| <dd><code>divisor</code> - Must be positive and greater than zero.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the modulo result.</dd> |
| </dl> |
| </li> |
| </ul> |
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| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>modulo</h4> |
| <pre>public static int modulo(long[] hash, |
| int divisor)</pre> |
| <div class="block">Returns the remainder from the modulo division of the 128-bit output of the murmurHash3 by the |
| divisor.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>hash</code> - The size 2 long array from the MurmurHash3.</dd> |
| <dd><code>divisor</code> - Must be positive and greater than zero.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the modulo result</dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
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