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org.apache.openjpa.lib.util</FONT> | |
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Class Bytes</H2> | |
<PRE> | |
<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html" title="class or interface in java.lang">java.lang.Object</A> | |
<IMG SRC="../../../../../resources/inherit.gif" ALT="extended by "><B>org.apache.openjpa.lib.util.Bytes</B> | |
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<DT><PRE>public final class <B>Bytes</B><DT>extends <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A></DL> | |
</PRE> | |
<P> | |
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> | |
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<P> | |
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<CODE>static byte[]</CODE></FONT></TD> | |
<TD><CODE><B><A HREF="../../../../../org/apache/openjpa/lib/util/Bytes.html#append(byte[], byte[])">append</A></B>(byte[] a, | |
byte[] b)</CODE> | |
<BR> | |
Appends two bytes array into one.</TD> | |
</TR> | |
<TR BGCOLOR="white" CLASS="TableRowColor"> | |
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
<CODE>static boolean</CODE></FONT></TD> | |
<TD><CODE><B><A HREF="../../../../../org/apache/openjpa/lib/util/Bytes.html#areEqual(byte[], byte[])">areEqual</A></B>(byte[] a, | |
byte[] b)</CODE> | |
<BR> | |
Compares two byte arrays for equality.</TD> | |
</TR> | |
<TR BGCOLOR="white" CLASS="TableRowColor"> | |
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
<CODE>static int</CODE></FONT></TD> | |
<TD><CODE><B><A HREF="../../../../../org/apache/openjpa/lib/util/Bytes.html#compareTo(byte[], byte[])">compareTo</A></B>(byte[] lhs, | |
byte[] rhs)</CODE> | |
<BR> | |
Compares two byte arrays as specified by <code>Comparable</code>.</TD> | |
</TR> | |
<TR BGCOLOR="white" CLASS="TableRowColor"> | |
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
<CODE>static byte[]</CODE></FONT></TD> | |
<TD><CODE><B><A HREF="../../../../../org/apache/openjpa/lib/util/Bytes.html#toBytes(long)">toBytes</A></B>(long n)</CODE> | |
<BR> | |
Returns a 8-byte array built from a long.</TD> | |
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<TR BGCOLOR="white" CLASS="TableRowColor"> | |
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
<CODE>static byte[]</CODE></FONT></TD> | |
<TD><CODE><B><A HREF="../../../../../org/apache/openjpa/lib/util/Bytes.html#toBytes(long, byte[])">toBytes</A></B>(long n, | |
byte[] b)</CODE> | |
<BR> | |
Build a 8-byte array from a long.</TD> | |
</TR> | |
<TR BGCOLOR="white" CLASS="TableRowColor"> | |
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
<CODE>static long</CODE></FONT></TD> | |
<TD><CODE><B><A HREF="../../../../../org/apache/openjpa/lib/util/Bytes.html#toLong(byte[])">toLong</A></B>(byte[] b)</CODE> | |
<BR> | |
Build a long from first 8 bytes of the array.</TD> | |
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
<CODE>static short</CODE></FONT></TD> | |
<TD><CODE><B><A HREF="../../../../../org/apache/openjpa/lib/util/Bytes.html#toShort(byte[])">toShort</A></B>(byte[] b)</CODE> | |
<BR> | |
Build a short from first 2 bytes of the array.</TD> | |
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<TH ALIGN="left"><B>Methods inherited from class java.lang.<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A></B></TH> | |
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<A NAME="append(byte[], byte[])"><!-- --></A><H3> | |
append</H3> | |
<PRE> | |
public static byte[] <B>append</B>(byte[] a, | |
byte[] b)</PRE> | |
<DL> | |
<DD>Appends two bytes array into one. | |
<P> | |
<DD><DL> | |
<DT><B>Parameters:</B><DD><CODE>a</CODE> - A byte[].<DD><CODE>b</CODE> - A byte[]. | |
<DT><B>Returns:</B><DD>A byte[].</DL> | |
</DD> | |
</DL> | |
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<A NAME="toBytes(long)"><!-- --></A><H3> | |
toBytes</H3> | |
<PRE> | |
public static byte[] <B>toBytes</B>(long n)</PRE> | |
<DL> | |
<DD>Returns a 8-byte array built from a long. | |
<P> | |
<DD><DL> | |
<DT><B>Parameters:</B><DD><CODE>n</CODE> - The number to convert. | |
<DT><B>Returns:</B><DD>A byte[].</DL> | |
</DD> | |
</DL> | |
<HR> | |
<A NAME="toBytes(long, byte[])"><!-- --></A><H3> | |
toBytes</H3> | |
<PRE> | |
public static byte[] <B>toBytes</B>(long n, | |
byte[] b)</PRE> | |
<DL> | |
<DD>Build a 8-byte array from a long. No check is performed on the | |
array length. | |
<P> | |
<DD><DL> | |
<DT><B>Parameters:</B><DD><CODE>n</CODE> - The number to convert.<DD><CODE>b</CODE> - The array to fill. | |
<DT><B>Returns:</B><DD>A byte[].</DL> | |
</DD> | |
</DL> | |
<HR> | |
<A NAME="toLong(byte[])"><!-- --></A><H3> | |
toLong</H3> | |
<PRE> | |
public static long <B>toLong</B>(byte[] b)</PRE> | |
<DL> | |
<DD>Build a long from first 8 bytes of the array. | |
<P> | |
<DD><DL> | |
<DT><B>Parameters:</B><DD><CODE>b</CODE> - The byte[] to convert. | |
<DT><B>Returns:</B><DD>A long.</DL> | |
</DD> | |
</DL> | |
<HR> | |
<A NAME="areEqual(byte[], byte[])"><!-- --></A><H3> | |
areEqual</H3> | |
<PRE> | |
public static boolean <B>areEqual</B>(byte[] a, | |
byte[] b)</PRE> | |
<DL> | |
<DD>Compares two byte arrays for equality. | |
<P> | |
<DD><DL> | |
<DT><B>Parameters:</B><DD><CODE>a</CODE> - A byte[].<DD><CODE>b</CODE> - A byte[]. | |
<DT><B>Returns:</B><DD>True if the arrays have identical contents.</DL> | |
</DD> | |
</DL> | |
<HR> | |
<A NAME="compareTo(byte[], byte[])"><!-- --></A><H3> | |
compareTo</H3> | |
<PRE> | |
public static int <B>compareTo</B>(byte[] lhs, | |
byte[] rhs)</PRE> | |
<DL> | |
<DD><p>Compares two byte arrays as specified by <code>Comparable</code>. | |
<P> | |
<DD><DL> | |
<DT><B>Parameters:</B><DD><CODE>lhs</CODE> - - left hand value in the comparison operation.<DD><CODE>rhs</CODE> - - right hand value in the comparison operation. | |
<DT><B>Returns:</B><DD>a negative integer, zero, or a positive integer as | |
<code>lhs</code> is less than, equal to, or greater than | |
<code>rhs</code>.</DL> | |
</DD> | |
</DL> | |
<HR> | |
<A NAME="toShort(byte[])"><!-- --></A><H3> | |
toShort</H3> | |
<PRE> | |
public static short <B>toShort</B>(byte[] b)</PRE> | |
<DL> | |
<DD>Build a short from first 2 bytes of the array. | |
<P> | |
<DD><DL> | |
<DT><B>Parameters:</B><DD><CODE>b</CODE> - The byte[] to convert. | |
<DT><B>Returns:</B><DD>A short.</DL> | |
</DD> | |
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