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Class TupleTupleKeyCreator</H2>
<PRE>
<A HREF="http://java.sun.com/j2se/1.3/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>com.sleepycat.bind.tuple.TupleTupleKeyCreator</B>
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<DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../../../com/sleepycat/db/SecondaryKeyCreator.html" title="interface in com.sleepycat.db">SecondaryKeyCreator</A></DD>
</DL>
<DL>
<DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../../../com/sleepycat/bind/tuple/TupleTupleMarshalledKeyCreator.html" title="class in com.sleepycat.bind.tuple">TupleTupleMarshalledKeyCreator</A></DD>
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<DT>public abstract class <B>TupleTupleKeyCreator</B><DT>extends <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A><DT>implements <A HREF="../../../../com/sleepycat/db/SecondaryKeyCreator.html" title="interface in com.sleepycat.db">SecondaryKeyCreator</A></DL>
<P>
An abstract key creator that uses a tuple key and a tuple data entry. This
class takes care of converting the key and data entry to/from <A HREF="../../../../com/sleepycat/bind/tuple/TupleInput.html" title="class in com.sleepycat.bind.tuple"><CODE>TupleInput</CODE></A> and <A HREF="../../../../com/sleepycat/bind/tuple/TupleOutput.html" title="class in com.sleepycat.bind.tuple"><CODE>TupleOutput</CODE></A> objects.
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<TD><CODE><B><A HREF="../../../../com/sleepycat/bind/tuple/TupleTupleKeyCreator.html#TupleTupleKeyCreator()">TupleTupleKeyCreator</A></B>()</CODE>
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Creates a tuple-tuple key creator.</TD>
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<CODE> boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/sleepycat/bind/tuple/TupleTupleKeyCreator.html#createSecondaryKey(com.sleepycat.db.SecondaryDatabase, com.sleepycat.db.DatabaseEntry, com.sleepycat.db.DatabaseEntry, com.sleepycat.db.DatabaseEntry)">createSecondaryKey</A></B>(<A HREF="../../../../com/sleepycat/db/SecondaryDatabase.html" title="class in com.sleepycat.db">SecondaryDatabase</A> db,
<A HREF="../../../../com/sleepycat/db/DatabaseEntry.html" title="class in com.sleepycat.db">DatabaseEntry</A> primaryKeyEntry,
<A HREF="../../../../com/sleepycat/db/DatabaseEntry.html" title="class in com.sleepycat.db">DatabaseEntry</A> dataEntry,
<A HREF="../../../../com/sleepycat/db/DatabaseEntry.html" title="class in com.sleepycat.db">DatabaseEntry</A> indexKeyEntry)</CODE>
<BR>
Creates a secondary key entry, given a primary key and data entry.</TD>
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<CODE>abstract boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/sleepycat/bind/tuple/TupleTupleKeyCreator.html#createSecondaryKey(com.sleepycat.bind.tuple.TupleInput, com.sleepycat.bind.tuple.TupleInput, com.sleepycat.bind.tuple.TupleOutput)">createSecondaryKey</A></B>(<A HREF="../../../../com/sleepycat/bind/tuple/TupleInput.html" title="class in com.sleepycat.bind.tuple">TupleInput</A> primaryKeyInput,
<A HREF="../../../../com/sleepycat/bind/tuple/TupleInput.html" title="class in com.sleepycat.bind.tuple">TupleInput</A> dataInput,
<A HREF="../../../../com/sleepycat/bind/tuple/TupleOutput.html" title="class in com.sleepycat.bind.tuple">TupleOutput</A> indexKeyOutput)</CODE>
<BR>
Creates the index key from primary key tuple and data tuple.</TD>
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<CODE> boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/sleepycat/bind/tuple/TupleTupleKeyCreator.html#nullifyForeignKey(com.sleepycat.db.SecondaryDatabase, com.sleepycat.db.DatabaseEntry)">nullifyForeignKey</A></B>(<A HREF="../../../../com/sleepycat/db/SecondaryDatabase.html" title="class in com.sleepycat.db">SecondaryDatabase</A> db,
<A HREF="../../../../com/sleepycat/db/DatabaseEntry.html" title="class in com.sleepycat.db">DatabaseEntry</A> dataEntry)</CODE>
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<CODE> boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/sleepycat/bind/tuple/TupleTupleKeyCreator.html#nullifyForeignKey(com.sleepycat.bind.tuple.TupleInput, com.sleepycat.bind.tuple.TupleOutput)">nullifyForeignKey</A></B>(<A HREF="../../../../com/sleepycat/bind/tuple/TupleInput.html" title="class in com.sleepycat.bind.tuple">TupleInput</A> dataInput,
<A HREF="../../../../com/sleepycat/bind/tuple/TupleOutput.html" title="class in com.sleepycat.bind.tuple">TupleOutput</A> dataOutput)</CODE>
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Clears the index key in the tuple data entry.</TD>
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<A NAME="TupleTupleKeyCreator()"><!-- --></A><H3>
TupleTupleKeyCreator</H3>
<PRE>
public <B>TupleTupleKeyCreator</B>()</PRE>
<DL>
<DD>Creates a tuple-tuple key creator.
<P>
</DL>
<!-- ============ METHOD DETAIL ========== -->
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<A NAME="createSecondaryKey(com.sleepycat.db.SecondaryDatabase, com.sleepycat.db.DatabaseEntry, com.sleepycat.db.DatabaseEntry, com.sleepycat.db.DatabaseEntry)"><!-- --></A><H3>
createSecondaryKey</H3>
<PRE>
public boolean <B>createSecondaryKey</B>(<A HREF="../../../../com/sleepycat/db/SecondaryDatabase.html" title="class in com.sleepycat.db">SecondaryDatabase</A> db,
<A HREF="../../../../com/sleepycat/db/DatabaseEntry.html" title="class in com.sleepycat.db">DatabaseEntry</A> primaryKeyEntry,
<A HREF="../../../../com/sleepycat/db/DatabaseEntry.html" title="class in com.sleepycat.db">DatabaseEntry</A> dataEntry,
<A HREF="../../../../com/sleepycat/db/DatabaseEntry.html" title="class in com.sleepycat.db">DatabaseEntry</A> indexKeyEntry)
throws <A HREF="../../../../com/sleepycat/db/DatabaseException.html" title="class in com.sleepycat.db">DatabaseException</A></PRE>
<DL>
<DD><B>Description copied from interface: <CODE><A HREF="../../../../com/sleepycat/db/SecondaryKeyCreator.html" title="interface in com.sleepycat.db">SecondaryKeyCreator</A></CODE></B></DD>
<DD>Creates a secondary key entry, given a primary key and data entry.
<p>
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../com/sleepycat/db/SecondaryKeyCreator.html#createSecondaryKey(com.sleepycat.db.SecondaryDatabase, com.sleepycat.db.DatabaseEntry, com.sleepycat.db.DatabaseEntry, com.sleepycat.db.DatabaseEntry)">createSecondaryKey</A></CODE> in interface <CODE><A HREF="../../../../com/sleepycat/db/SecondaryKeyCreator.html" title="interface in com.sleepycat.db">SecondaryKeyCreator</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>db</CODE> - the database to which the secondary key will be added.
<p><DD><CODE>primaryKeyEntry</CODE> - the primary key entry. This parameter must not be modified
by this method.
<p><DD><CODE>dataEntry</CODE> - the primary data entry. This parameter must not be modified
by this method.
<p><DD><CODE>indexKeyEntry</CODE> - the secondary key created by this method.
<p>
<DT><B>Returns:</B><DD>true if a key was created, or false to indicate that the key is
not present.
<p>
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../com/sleepycat/db/DatabaseException.html" title="class in com.sleepycat.db">DatabaseException</A></CODE> - if an error occurs attempting to create the
secondary key.</DL>
</DD>
</DL>
<HR>
<A NAME="nullifyForeignKey(com.sleepycat.db.SecondaryDatabase, com.sleepycat.db.DatabaseEntry)"><!-- --></A><H3>
nullifyForeignKey</H3>
<PRE>
public boolean <B>nullifyForeignKey</B>(<A HREF="../../../../com/sleepycat/db/SecondaryDatabase.html" title="class in com.sleepycat.db">SecondaryDatabase</A> db,
<A HREF="../../../../com/sleepycat/db/DatabaseEntry.html" title="class in com.sleepycat.db">DatabaseEntry</A> dataEntry)
throws <A HREF="../../../../com/sleepycat/db/DatabaseException.html" title="class in com.sleepycat.db">DatabaseException</A></PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../com/sleepycat/db/DatabaseException.html" title="class in com.sleepycat.db">DatabaseException</A></CODE></DL>
</DD>
</DL>
<HR>
<A NAME="createSecondaryKey(com.sleepycat.bind.tuple.TupleInput, com.sleepycat.bind.tuple.TupleInput, com.sleepycat.bind.tuple.TupleOutput)"><!-- --></A><H3>
createSecondaryKey</H3>
<PRE>
public abstract boolean <B>createSecondaryKey</B>(<A HREF="../../../../com/sleepycat/bind/tuple/TupleInput.html" title="class in com.sleepycat.bind.tuple">TupleInput</A> primaryKeyInput,
<A HREF="../../../../com/sleepycat/bind/tuple/TupleInput.html" title="class in com.sleepycat.bind.tuple">TupleInput</A> dataInput,
<A HREF="../../../../com/sleepycat/bind/tuple/TupleOutput.html" title="class in com.sleepycat.bind.tuple">TupleOutput</A> indexKeyOutput)</PRE>
<DL>
<DD>Creates the index key from primary key tuple and data tuple.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>primaryKeyInput</CODE> - is the <A HREF="../../../../com/sleepycat/bind/tuple/TupleInput.html" title="class in com.sleepycat.bind.tuple"><CODE>TupleInput</CODE></A> for the primary key
entry.<DD><CODE>dataInput</CODE> - is the <A HREF="../../../../com/sleepycat/bind/tuple/TupleInput.html" title="class in com.sleepycat.bind.tuple"><CODE>TupleInput</CODE></A> for the data entry.<DD><CODE>indexKeyOutput</CODE> - is the destination index key tuple.
<DT><B>Returns:</B><DD>true if a key was created, or false to indicate that the key is
not present.</DL>
</DD>
</DL>
<HR>
<A NAME="nullifyForeignKey(com.sleepycat.bind.tuple.TupleInput, com.sleepycat.bind.tuple.TupleOutput)"><!-- --></A><H3>
nullifyForeignKey</H3>
<PRE>
public boolean <B>nullifyForeignKey</B>(<A HREF="../../../../com/sleepycat/bind/tuple/TupleInput.html" title="class in com.sleepycat.bind.tuple">TupleInput</A> dataInput,
<A HREF="../../../../com/sleepycat/bind/tuple/TupleOutput.html" title="class in com.sleepycat.bind.tuple">TupleOutput</A> dataOutput)</PRE>
<DL>
<DD>Clears the index key in the tuple data entry. The dataInput should be
read and then written to the dataOutput, clearing the index key in the
process.
<p>The secondary key should be output or removed by this method such
that <A HREF="../../../../com/sleepycat/bind/tuple/TupleTupleKeyCreator.html#createSecondaryKey(com.sleepycat.db.SecondaryDatabase, com.sleepycat.db.DatabaseEntry, com.sleepycat.db.DatabaseEntry, com.sleepycat.db.DatabaseEntry)"><CODE>createSecondaryKey(com.sleepycat.db.SecondaryDatabase, com.sleepycat.db.DatabaseEntry, com.sleepycat.db.DatabaseEntry, com.sleepycat.db.DatabaseEntry)</CODE></A> will return false. Other fields in the
data object should remain unchanged.</p>
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>dataInput</CODE> - is the <A HREF="../../../../com/sleepycat/bind/tuple/TupleInput.html" title="class in com.sleepycat.bind.tuple"><CODE>TupleInput</CODE></A> for the data entry.<DD><CODE>dataOutput</CODE> - is the destination <A HREF="../../../../com/sleepycat/bind/tuple/TupleOutput.html" title="class in com.sleepycat.bind.tuple"><CODE>TupleOutput</CODE></A>.
<DT><B>Returns:</B><DD>true if the key was cleared, or false to indicate that the key
is not present and no change is necessary.</DL>
</DD>
</DL>
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