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TupleTupleKeyExtractor (Sleepycat Software, Inc. - Berkeley DB Java API)
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com.sleepycat.bdb.bind.tuple</FONT>
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Class TupleTupleKeyExtractor</H2>
<PRE>
<A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html">java.lang.Object</A>
  |
  +--<B>com.sleepycat.bdb.bind.tuple.TupleTupleKeyExtractor</B>
</PRE>
<DL>
<DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../../../../com/sleepycat/bdb/bind/KeyExtractor.html">KeyExtractor</A></DD>
</DL>
<DL>
<DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../../../../com/sleepycat/bdb/bind/tuple/TupleTupleMarshalledKeyExtractor.html">TupleTupleMarshalledKeyExtractor</A></DD>
</DL>
<HR>
<DL>
<DT>public abstract class <B>TupleTupleKeyExtractor</B><DT>extends <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html">Object</A><DT>implements <A HREF="../../../../../com/sleepycat/bdb/bind/KeyExtractor.html">KeyExtractor</A></DL>

<P>
An abstract key extractor that uses a tuple key and a tuple value. This
 class takes care of converting the key and value data to/from <A HREF="../../../../../com/sleepycat/bdb/bind/tuple/TupleInput.html"><CODE>TupleInput</CODE></A> and <A HREF="../../../../../com/sleepycat/bdb/bind/tuple/TupleOutput.html"><CODE>TupleOutput</CODE></A> objects.  Its two abstract methods must
 be implemented by a concrete subclass to extract and clear the index key
 using these objects.
 <ul>
 <li> <A HREF="../../../../../com/sleepycat/bdb/bind/tuple/TupleTupleKeyExtractor.html#extractIndexKey(com.sleepycat.bdb.bind.tuple.TupleInput, com.sleepycat.bdb.bind.tuple.TupleInput, com.sleepycat.bdb.bind.tuple.TupleOutput)"><CODE>extractIndexKey(TupleInput,TupleInput,TupleOutput)</CODE></A> </li>
 <li> <A HREF="../../../../../com/sleepycat/bdb/bind/tuple/TupleTupleKeyExtractor.html#clearIndexKey(com.sleepycat.bdb.bind.tuple.TupleInput, com.sleepycat.bdb.bind.tuple.TupleOutput)"><CODE>clearIndexKey(TupleInput,TupleOutput)</CODE></A> </li>
 </ul>
<P>

<P>
<HR>

<P>
<!-- ======== NESTED CLASS SUMMARY ======== -->


<!-- =========== FIELD SUMMARY =========== -->


<!-- ======== CONSTRUCTOR SUMMARY ======== -->

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<TD><CODE><B><A HREF="../../../../../com/sleepycat/bdb/bind/tuple/TupleTupleKeyExtractor.html#TupleTupleKeyExtractor(com.sleepycat.bdb.bind.tuple.TupleFormat, com.sleepycat.bdb.bind.tuple.TupleFormat, com.sleepycat.bdb.bind.tuple.TupleFormat)">TupleTupleKeyExtractor</A></B>(<A HREF="../../../../../com/sleepycat/bdb/bind/tuple/TupleFormat.html">TupleFormat</A>&nbsp;primaryKeyFormat,
                       <A HREF="../../../../../com/sleepycat/bdb/bind/tuple/TupleFormat.html">TupleFormat</A>&nbsp;valueFormat,
                       <A HREF="../../../../../com/sleepycat/bdb/bind/tuple/TupleFormat.html">TupleFormat</A>&nbsp;indexKeyFormat)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Creates a tuple-tuple key extractor.</TD>
</TR>
</TABLE>
&nbsp;
<!-- ========== METHOD SUMMARY =========== -->

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<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../com/sleepycat/bdb/bind/tuple/TupleTupleKeyExtractor.html#clearIndexKey(com.sleepycat.bdb.bind.DataBuffer)">clearIndexKey</A></B>(<A HREF="../../../../../com/sleepycat/bdb/bind/DataBuffer.html">DataBuffer</A>&nbsp;valueData)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Clears the index key in a value buffer.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>abstract &nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../com/sleepycat/bdb/bind/tuple/TupleTupleKeyExtractor.html#clearIndexKey(com.sleepycat.bdb.bind.tuple.TupleInput, com.sleepycat.bdb.bind.tuple.TupleOutput)">clearIndexKey</A></B>(<A HREF="../../../../../com/sleepycat/bdb/bind/tuple/TupleInput.html">TupleInput</A>&nbsp;valueInput,
              <A HREF="../../../../../com/sleepycat/bdb/bind/tuple/TupleOutput.html">TupleOutput</A>&nbsp;valueOutput)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Clears the index key in the tuple value data.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../com/sleepycat/bdb/bind/tuple/TupleTupleKeyExtractor.html#extractIndexKey(com.sleepycat.bdb.bind.DataBuffer, com.sleepycat.bdb.bind.DataBuffer, com.sleepycat.bdb.bind.DataBuffer)">extractIndexKey</A></B>(<A HREF="../../../../../com/sleepycat/bdb/bind/DataBuffer.html">DataBuffer</A>&nbsp;primaryKeyData,
                <A HREF="../../../../../com/sleepycat/bdb/bind/DataBuffer.html">DataBuffer</A>&nbsp;valueData,
                <A HREF="../../../../../com/sleepycat/bdb/bind/DataBuffer.html">DataBuffer</A>&nbsp;indexKeyData)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Extracts the index key data from primary key and value buffers.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>abstract &nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../com/sleepycat/bdb/bind/tuple/TupleTupleKeyExtractor.html#extractIndexKey(com.sleepycat.bdb.bind.tuple.TupleInput, com.sleepycat.bdb.bind.tuple.TupleInput, com.sleepycat.bdb.bind.tuple.TupleOutput)">extractIndexKey</A></B>(<A HREF="../../../../../com/sleepycat/bdb/bind/tuple/TupleInput.html">TupleInput</A>&nbsp;primaryKeyInput,
                <A HREF="../../../../../com/sleepycat/bdb/bind/tuple/TupleInput.html">TupleInput</A>&nbsp;valueInput,
                <A HREF="../../../../../com/sleepycat/bdb/bind/tuple/TupleOutput.html">TupleOutput</A>&nbsp;indexKeyOutput)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Extracts the index key data from primary
 key tuple and value tuple data.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../../../com/sleepycat/bdb/bind/DataFormat.html">DataFormat</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../com/sleepycat/bdb/bind/tuple/TupleTupleKeyExtractor.html#getIndexKeyFormat()">getIndexKeyFormat</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns the format of the index key data.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../../../com/sleepycat/bdb/bind/DataFormat.html">DataFormat</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../com/sleepycat/bdb/bind/tuple/TupleTupleKeyExtractor.html#getPrimaryKeyFormat()">getPrimaryKeyFormat</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns the format of the primary key data or null if the index key data
 is not derived from the primary key data.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../../../com/sleepycat/bdb/bind/DataFormat.html">DataFormat</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../com/sleepycat/bdb/bind/tuple/TupleTupleKeyExtractor.html#getValueFormat()">getValueFormat</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns the format of the value data or null if the index key data is
 not derived from the value data.</TD>
</TR>
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<!-- ============ FIELD DETAIL =========== -->


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</TABLE>

<A NAME="TupleTupleKeyExtractor(com.sleepycat.bdb.bind.tuple.TupleFormat, com.sleepycat.bdb.bind.tuple.TupleFormat, com.sleepycat.bdb.bind.tuple.TupleFormat)"><!-- --></A><H3>
TupleTupleKeyExtractor</H3>
<PRE>
public <B>TupleTupleKeyExtractor</B>(<A HREF="../../../../../com/sleepycat/bdb/bind/tuple/TupleFormat.html">TupleFormat</A>&nbsp;primaryKeyFormat,
                              <A HREF="../../../../../com/sleepycat/bdb/bind/tuple/TupleFormat.html">TupleFormat</A>&nbsp;valueFormat,
                              <A HREF="../../../../../com/sleepycat/bdb/bind/tuple/TupleFormat.html">TupleFormat</A>&nbsp;indexKeyFormat)</PRE>
<DL>
<DD>Creates a tuple-tuple key extractor.
<P>
<DT><B>Parameters:</B><DD><CODE>primaryKeyFormat</CODE> - is the primary key format, or null if no
 primary key data is used to construct the index key.<DD><CODE>valueFormat</CODE> - is the value format, or null if no value data is
 used to construct the index key.<DD><CODE>indexKeyFormat</CODE> - is the index key format.</DL>

<!-- ============ METHOD DETAIL ========== -->

<A NAME="method_detail"><!-- --></A>
<TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TD COLSPAN=1><FONT SIZE="+2">
<B>Method Detail</B></FONT></TD>
</TR>
</TABLE>

<A NAME="getPrimaryKeyFormat()"><!-- --></A><H3>
getPrimaryKeyFormat</H3>
<PRE>
public <A HREF="../../../../../com/sleepycat/bdb/bind/DataFormat.html">DataFormat</A> <B>getPrimaryKeyFormat</B>()</PRE>
<DL>
<DD><B>Description copied from interface: <CODE><A HREF="../../../../../com/sleepycat/bdb/bind/KeyExtractor.html">KeyExtractor</A></CODE></B></DD>
<DD>Returns the format of the primary key data or null if the index key data
 is not derived from the primary key data.  If this method returns null,
 then null will be passed for the <code>primaryKeyData</code> parameter
 of <A HREF="../../../../../com/sleepycat/bdb/bind/KeyExtractor.html#extractIndexKey(com.sleepycat.bdb.bind.DataBuffer, com.sleepycat.bdb.bind.DataBuffer, com.sleepycat.bdb.bind.DataBuffer)"><CODE>KeyExtractor.extractIndexKey(com.sleepycat.bdb.bind.DataBuffer, com.sleepycat.bdb.bind.DataBuffer, com.sleepycat.bdb.bind.DataBuffer)</CODE></A>.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../com/sleepycat/bdb/bind/KeyExtractor.html#getPrimaryKeyFormat()">getPrimaryKeyFormat</A></CODE> in interface <CODE><A HREF="../../../../../com/sleepycat/bdb/bind/KeyExtractor.html">KeyExtractor</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the format of the primary key data or null.</DL>
</DD>
</DL>
<HR>

<A NAME="getValueFormat()"><!-- --></A><H3>
getValueFormat</H3>
<PRE>
public <A HREF="../../../../../com/sleepycat/bdb/bind/DataFormat.html">DataFormat</A> <B>getValueFormat</B>()</PRE>
<DL>
<DD><B>Description copied from interface: <CODE><A HREF="../../../../../com/sleepycat/bdb/bind/KeyExtractor.html">KeyExtractor</A></CODE></B></DD>
<DD>Returns the format of the value data or null if the index key data is
 not derived from the value data.  If this method returns null, then null
 will be passed for the <code>valueData</code> parameter of <A HREF="../../../../../com/sleepycat/bdb/bind/KeyExtractor.html#extractIndexKey(com.sleepycat.bdb.bind.DataBuffer, com.sleepycat.bdb.bind.DataBuffer, com.sleepycat.bdb.bind.DataBuffer)"><CODE>KeyExtractor.extractIndexKey(com.sleepycat.bdb.bind.DataBuffer, com.sleepycat.bdb.bind.DataBuffer, com.sleepycat.bdb.bind.DataBuffer)</CODE></A>.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../com/sleepycat/bdb/bind/KeyExtractor.html#getValueFormat()">getValueFormat</A></CODE> in interface <CODE><A HREF="../../../../../com/sleepycat/bdb/bind/KeyExtractor.html">KeyExtractor</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the format of the value data or null.</DL>
</DD>
</DL>
<HR>

<A NAME="getIndexKeyFormat()"><!-- --></A><H3>
getIndexKeyFormat</H3>
<PRE>
public <A HREF="../../../../../com/sleepycat/bdb/bind/DataFormat.html">DataFormat</A> <B>getIndexKeyFormat</B>()</PRE>
<DL>
<DD><B>Description copied from interface: <CODE><A HREF="../../../../../com/sleepycat/bdb/bind/KeyExtractor.html">KeyExtractor</A></CODE></B></DD>
<DD>Returns the format of the index key data.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../com/sleepycat/bdb/bind/KeyExtractor.html#getIndexKeyFormat()">getIndexKeyFormat</A></CODE> in interface <CODE><A HREF="../../../../../com/sleepycat/bdb/bind/KeyExtractor.html">KeyExtractor</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the format of the index key data.</DL>
</DD>
</DL>
<HR>

<A NAME="extractIndexKey(com.sleepycat.bdb.bind.DataBuffer, com.sleepycat.bdb.bind.DataBuffer, com.sleepycat.bdb.bind.DataBuffer)"><!-- --></A><H3>
extractIndexKey</H3>
<PRE>
public void <B>extractIndexKey</B>(<A HREF="../../../../../com/sleepycat/bdb/bind/DataBuffer.html">DataBuffer</A>&nbsp;primaryKeyData,
                            <A HREF="../../../../../com/sleepycat/bdb/bind/DataBuffer.html">DataBuffer</A>&nbsp;valueData,
                            <A HREF="../../../../../com/sleepycat/bdb/bind/DataBuffer.html">DataBuffer</A>&nbsp;indexKeyData)
                     throws <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/io/IOException.html">IOException</A></PRE>
<DL>
<DD><B>Description copied from interface: <CODE><A HREF="../../../../../com/sleepycat/bdb/bind/KeyExtractor.html">KeyExtractor</A></CODE></B></DD>
<DD>Extracts the index key data from primary key and value buffers.
 The index key is extracted when saving the data record identified by the
 primary key and value buffers, in order to add or remove an index
 entry in the database for that data record.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../com/sleepycat/bdb/bind/KeyExtractor.html#extractIndexKey(com.sleepycat.bdb.bind.DataBuffer, com.sleepycat.bdb.bind.DataBuffer, com.sleepycat.bdb.bind.DataBuffer)">extractIndexKey</A></CODE> in interface <CODE><A HREF="../../../../../com/sleepycat/bdb/bind/KeyExtractor.html">KeyExtractor</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>primaryKeyData</CODE> - is the source primary key data, or null if no
 primary key data is used to construct the index key, in which case
 <A HREF="../../../../../com/sleepycat/bdb/bind/KeyExtractor.html#getPrimaryKeyFormat()"><CODE>KeyExtractor.getPrimaryKeyFormat()</CODE></A> should also return null.<DD><CODE>valueData</CODE> - is the source value data, or null if no value data is
 used to construct the index key, in which case <A HREF="../../../../../com/sleepycat/bdb/bind/KeyExtractor.html#getValueFormat()"><CODE>KeyExtractor.getValueFormat()</CODE></A>
 should also return null.<DD><CODE>indexKeyData</CODE> - is the destination index key buffer.  For index keys
 which are optionally present, the buffer's length should be set to zero
 to indicate that the key is not present or null.
<DD><CODE><A HREF="http://java.sun.com/j2se/1.3/docs/api/java/io/IOException.html">IOException</A></CODE></DL>
</DD>
</DL>
<HR>

<A NAME="clearIndexKey(com.sleepycat.bdb.bind.DataBuffer)"><!-- --></A><H3>
clearIndexKey</H3>
<PRE>
public void <B>clearIndexKey</B>(<A HREF="../../../../../com/sleepycat/bdb/bind/DataBuffer.html">DataBuffer</A>&nbsp;valueData)
                   throws <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/io/IOException.html">IOException</A></PRE>
<DL>
<DD><B>Description copied from interface: <CODE><A HREF="../../../../../com/sleepycat/bdb/bind/KeyExtractor.html">KeyExtractor</A></CODE></B></DD>
<DD>Clears the index key in a value buffer.  The index key is cleared when
 the index is for a foreign key identifying a record that has been
 deleted.  This method is called only if the <A HREF="../../../../../com/sleepycat/bdb/ForeignKeyIndex.html"><CODE>ForeignKeyIndex</CODE></A> is configured with <A HREF="../../../../../com/sleepycat/bdb/ForeignKeyIndex.html#ON_DELETE_CLEAR"><CODE>ForeignKeyIndex.ON_DELETE_CLEAR</CODE></A>.  It is never called
 for index keys that are derived from primary key data, since in this
 case <A HREF="../../../../../com/sleepycat/bdb/ForeignKeyIndex.html#ON_DELETE_CLEAR"><CODE>ForeignKeyIndex.ON_DELETE_CLEAR</CODE></A> is not
 allowed.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../com/sleepycat/bdb/bind/KeyExtractor.html#clearIndexKey(com.sleepycat.bdb.bind.DataBuffer)">clearIndexKey</A></CODE> in interface <CODE><A HREF="../../../../../com/sleepycat/bdb/bind/KeyExtractor.html">KeyExtractor</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>valueData</CODE> - is the source and destination value data.  On entry
 this contains the index key to be cleared.  It should be changed by this
 method such that <A HREF="../../../../../com/sleepycat/bdb/bind/KeyExtractor.html#extractIndexKey(com.sleepycat.bdb.bind.DataBuffer, com.sleepycat.bdb.bind.DataBuffer, com.sleepycat.bdb.bind.DataBuffer)"><CODE>KeyExtractor.extractIndexKey(com.sleepycat.bdb.bind.DataBuffer, com.sleepycat.bdb.bind.DataBuffer, com.sleepycat.bdb.bind.DataBuffer)</CODE></A> will extract a null key (set
 the buffer length to zero).  Other data in the buffer should remain
 unchanged.
<DD><CODE><A HREF="http://java.sun.com/j2se/1.3/docs/api/java/io/IOException.html">IOException</A></CODE></DL>
</DD>
</DL>
<HR>

<A NAME="extractIndexKey(com.sleepycat.bdb.bind.tuple.TupleInput, com.sleepycat.bdb.bind.tuple.TupleInput, com.sleepycat.bdb.bind.tuple.TupleOutput)"><!-- --></A><H3>
extractIndexKey</H3>
<PRE>
public abstract void <B>extractIndexKey</B>(<A HREF="../../../../../com/sleepycat/bdb/bind/tuple/TupleInput.html">TupleInput</A>&nbsp;primaryKeyInput,
                                     <A HREF="../../../../../com/sleepycat/bdb/bind/tuple/TupleInput.html">TupleInput</A>&nbsp;valueInput,
                                     <A HREF="../../../../../com/sleepycat/bdb/bind/tuple/TupleOutput.html">TupleOutput</A>&nbsp;indexKeyOutput)
                              throws <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/io/IOException.html">IOException</A></PRE>
<DL>
<DD>Extracts the index key data from primary
 key tuple and value tuple data.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>primaryKeyInput</CODE> - is the <A HREF="../../../../../com/sleepycat/bdb/bind/tuple/TupleInput.html"><CODE>TupleInput</CODE></A> for the primary key
 data, or null if no primary key data is used to construct the index key.<DD><CODE>valueInput</CODE> - is the <A HREF="../../../../../com/sleepycat/bdb/bind/tuple/TupleInput.html"><CODE>TupleInput</CODE></A> for the value data, or null
 if no value data is used to construct the index key.<DD><CODE>indexKeyOutput</CODE> - is the destination index key tuple.  For index
 keys which are optionally present, no tuple data should be output to
 indicate that the key is not present or null.
<DD><CODE><A HREF="http://java.sun.com/j2se/1.3/docs/api/java/io/IOException.html">IOException</A></CODE></DL>
</DD>
</DL>
<HR>

<A NAME="clearIndexKey(com.sleepycat.bdb.bind.tuple.TupleInput, com.sleepycat.bdb.bind.tuple.TupleOutput)"><!-- --></A><H3>
clearIndexKey</H3>
<PRE>
public abstract void <B>clearIndexKey</B>(<A HREF="../../../../../com/sleepycat/bdb/bind/tuple/TupleInput.html">TupleInput</A>&nbsp;valueInput,
                                   <A HREF="../../../../../com/sleepycat/bdb/bind/tuple/TupleOutput.html">TupleOutput</A>&nbsp;valueOutput)
                            throws <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/io/IOException.html">IOException</A></PRE>
<DL>
<DD>Clears the index key in the tuple value data.  The valueInput should be
 read and then written to the valueOutput, clearing the index key in the
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>valueInput</CODE> - is the <A HREF="../../../../../com/sleepycat/bdb/bind/tuple/TupleInput.html"><CODE>TupleInput</CODE></A> for the value data.<DD><CODE>valueOutput</CODE> - is the destination <A HREF="../../../../../com/sleepycat/bdb/bind/tuple/TupleOutput.html"><CODE>TupleOutput</CODE></A>.
<DD><CODE><A HREF="http://java.sun.com/j2se/1.3/docs/api/java/io/IOException.html">IOException</A></CODE></DL>
</DD>
</DL>
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