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DataBuffer (Sleepycat Software, Inc. - Berkeley DB Java API)
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<b>Berkeley DB</b><br><font size="-1"> version 4.2.52</font></EM>
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com.sleepycat.bdb.bind</FONT>
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Interface DataBuffer</H2>
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<DT><B>All Known Implementing Classes:</B> <DD><A HREF="../../../../com/sleepycat/bdb/DataThang.html">DataThang</A>, <A HREF="../../../../com/sleepycat/bdb/bind/SimpleBuffer.html">SimpleBuffer</A></DD>
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<DT>public interface <B>DataBuffer</B></DL>
<P>
The interface used in bindings to access the data as a byte array.
<p>Each data buffer may contain a formation Object that is associated with
the data. The formation may be used by bindings to cache an internal
representation of the data that is specific to the format but can be used by
all bindings. The formation must be cleared whenever the data in the buffer
is changed.</p>
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<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/sleepycat/bdb/bind/DataBuffer.html#clearDataFormation()">clearDataFormation</A></B>()</CODE>
<BR>
Sets the formation associated with the data in this buffer to null.</TD>
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<CODE> byte[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/sleepycat/bdb/bind/DataBuffer.html#getDataBytes()">getDataBytes</A></B>()</CODE>
<BR>
Returns the byte array of the data buffer.</TD>
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<CODE> <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html">Object</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/sleepycat/bdb/bind/DataBuffer.html#getDataFormation()">getDataFormation</A></B>()</CODE>
<BR>
Returns the formation associated with the data in this buffer.</TD>
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<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/sleepycat/bdb/bind/DataBuffer.html#getDataLength()">getDataLength</A></B>()</CODE>
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Returns the byte length of the data in the array.</TD>
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<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/sleepycat/bdb/bind/DataBuffer.html#getDataOffset()">getDataOffset</A></B>()</CODE>
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Returns the byte offset of the data in the array.</TD>
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<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/sleepycat/bdb/bind/DataBuffer.html#setData(byte[], int, int)">setData</A></B>(byte[] data,
int offset,
int length)</CODE>
<BR>
Sets the data in this buffer to the given value.</TD>
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<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/sleepycat/bdb/bind/DataBuffer.html#setDataFormation(java.lang.Object)">setDataFormation</A></B>(<A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html">Object</A> formation)</CODE>
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Sets the formation associated with the data in this buffer.</TD>
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<A NAME="setData(byte[], int, int)"><!-- --></A><H3>
setData</H3>
<PRE>
public void <B>setData</B>(byte[] data,
int offset,
int length)</PRE>
<DL>
<DD>Sets the data in this buffer to the given value. The byte array given
will be owned by this buffer object after this method is called and
must not be modified thereafter. This method must clear the data
formation for this buffer.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>data</CODE> - is the data array and must not be modified after this
method is called.<DD><CODE>offset</CODE> - is the byte offset of the data in the array.<DD><CODE>length</CODE> - is the byte length of the data in the array.</DL>
</DD>
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<A NAME="getDataBytes()"><!-- --></A><H3>
getDataBytes</H3>
<PRE>
public byte[] <B>getDataBytes</B>()</PRE>
<DL>
<DD>Returns the byte array of the data buffer. This array is owned by
the buffer object and should not be modified.
<P>
<DD><DL>
<DT><B>Returns:</B><DD>the byte array of the data buffer.</DL>
</DD>
</DL>
<HR>
<A NAME="getDataOffset()"><!-- --></A><H3>
getDataOffset</H3>
<PRE>
public int <B>getDataOffset</B>()</PRE>
<DL>
<DD>Returns the byte offset of the data in the array.
<P>
<DD><DL>
<DT><B>Returns:</B><DD>the byte offset of the data in the array.</DL>
</DD>
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<HR>
<A NAME="getDataLength()"><!-- --></A><H3>
getDataLength</H3>
<PRE>
public int <B>getDataLength</B>()</PRE>
<DL>
<DD>Returns the byte length of the data in the array.
<P>
<DD><DL>
<DT><B>Returns:</B><DD>the byte length of the data in the array.</DL>
</DD>
</DL>
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<A NAME="setDataFormation(java.lang.Object)"><!-- --></A><H3>
setDataFormation</H3>
<PRE>
public void <B>setDataFormation</B>(<A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html">Object</A> formation)</PRE>
<DL>
<DD>Sets the formation associated with the data in this buffer.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>formation</CODE> - is Object to set.</DL>
</DD>
</DL>
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<A NAME="getDataFormation()"><!-- --></A><H3>
getDataFormation</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html">Object</A> <B>getDataFormation</B>()</PRE>
<DL>
<DD>Returns the formation associated with the data in this buffer.
<P>
<DD><DL>
<DT><B>Returns:</B><DD>formation Object.</DL>
</DD>
</DL>
<HR>
<A NAME="clearDataFormation()"><!-- --></A><H3>
clearDataFormation</H3>
<PRE>
public void <B>clearDataFormation</B>()</PRE>
<DL>
<DD>Sets the formation associated with the data in this buffer to null.
<P>
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</DL>
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