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| <div class="subTitle">org.apache.openjpa.lib.util</div> |
| <h2 title="Class Bytes" class="title">Class Bytes</h2> |
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| <ul class="inheritance"> |
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| <pre>public final class <span class="strong">Bytes</span> |
| extends <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre> |
| <div class="block">This class came from the Apache Commons Id sandbox project in support |
| of the UUIDGenerator implementation. |
| |
| <p>Static methods for managing byte arrays (all methods follow Big |
| Endian order where most significant bits are in front).</p></div> |
| </li> |
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| <caption><span>Methods</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Method and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static byte[]</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/lib/util/Bytes.html#append(byte[],%20byte[])">append</a></strong>(byte[] a, |
| byte[] b)</code> |
| <div class="block">Appends two bytes array into one.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static boolean</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/lib/util/Bytes.html#areEqual(byte[],%20byte[])">areEqual</a></strong>(byte[] a, |
| byte[] b)</code> |
| <div class="block">Compares two byte arrays for equality.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static int</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/lib/util/Bytes.html#compareTo(byte[],%20byte[])">compareTo</a></strong>(byte[] lhs, |
| byte[] rhs)</code> |
| <div class="block">Compares two byte arrays as specified by <code>Comparable</code>.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static byte[]</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/lib/util/Bytes.html#toBytes(long)">toBytes</a></strong>(long n)</code> |
| <div class="block">Returns a 8-byte array built from a long.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static byte[]</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/lib/util/Bytes.html#toBytes(long,%20byte[])">toBytes</a></strong>(long n, |
| byte[] b)</code> |
| <div class="block">Build a 8-byte array from a long.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static long</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/lib/util/Bytes.html#toLong(byte[])">toLong</a></strong>(byte[] b)</code> |
| <div class="block">Build a long from first 8 bytes of the array.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static short</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/openjpa/lib/util/Bytes.html#toShort(byte[])">toShort</a></strong>(byte[] b)</code> |
| <div class="block">Build a short from first 2 bytes of the array.</div> |
| </td> |
| </tr> |
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| <h3>Methods inherited from class java.lang.<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3> |
| <code><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang">equals</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang">finalize</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang">hashCode</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang">notifyAll</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang">toString</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait(long,%20int)" title="class or interface in java.lang">wait</a></code></li> |
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| <h4>append</h4> |
| <pre>public static byte[] append(byte[] a, |
| byte[] b)</pre> |
| <div class="block">Appends two bytes array into one.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>a</code> - A byte[].</dd><dd><code>b</code> - A byte[].</dd> |
| <dt><span class="strong">Returns:</span></dt><dd>A byte[].</dd></dl> |
| </li> |
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| <a name="toBytes(long)"> |
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| <h4>toBytes</h4> |
| <pre>public static byte[] toBytes(long n)</pre> |
| <div class="block">Returns a 8-byte array built from a long.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>n</code> - The number to convert.</dd> |
| <dt><span class="strong">Returns:</span></dt><dd>A byte[].</dd></dl> |
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| <h4>toBytes</h4> |
| <pre>public static byte[] toBytes(long n, |
| byte[] b)</pre> |
| <div class="block">Build a 8-byte array from a long. No check is performed on the |
| array length.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>n</code> - The number to convert.</dd><dd><code>b</code> - The array to fill.</dd> |
| <dt><span class="strong">Returns:</span></dt><dd>A byte[].</dd></dl> |
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| <pre>public static long toLong(byte[] b)</pre> |
| <div class="block">Build a long from first 8 bytes of the array.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>b</code> - The byte[] to convert.</dd> |
| <dt><span class="strong">Returns:</span></dt><dd>A long.</dd></dl> |
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| <pre>public static boolean areEqual(byte[] a, |
| byte[] b)</pre> |
| <div class="block">Compares two byte arrays for equality.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>a</code> - A byte[].</dd><dd><code>b</code> - A byte[].</dd> |
| <dt><span class="strong">Returns:</span></dt><dd>True if the arrays have identical contents.</dd></dl> |
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| <pre>public static int compareTo(byte[] lhs, |
| byte[] rhs)</pre> |
| <div class="block"><p>Compares two byte arrays as specified by <code>Comparable</code>.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>lhs</code> - - left hand value in the comparison operation.</dd><dd><code>rhs</code> - - right hand value in the comparison operation.</dd> |
| <dt><span class="strong">Returns:</span></dt><dd>a negative integer, zero, or a positive integer as |
| <code>lhs</code> is less than, equal to, or greater than |
| <code>rhs</code>.</dd></dl> |
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| <pre>public static short toShort(byte[] b)</pre> |
| <div class="block">Build a short from first 2 bytes of the array.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>b</code> - The byte[] to convert.</dd> |
| <dt><span class="strong">Returns:</span></dt><dd>A short.</dd></dl> |
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