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 <H2>
 <FONT SIZE="-1">
 javax.persistence</FONT>
 <BR>
 Annotation Type PrimaryKeyJoinColumn</H2>
 <HR>
 <DL>
 <DT><PRE><FONT SIZE="-1">@Target(value={TYPE,METHOD,FIELD})
 @Retention(value=RUNTIME)
 </FONT>public @interface <B>PrimaryKeyJoinColumn</B></DL>
 </PRE>

 <P>
 Specifies a primary key column that is used as a foreign key to
  join to another table.

  <p> It is used to join the primary table of an entity subclass
  in the <A HREF="../../javax/persistence/InheritanceType.html#JOINED"><CODE>JOINED</CODE></A> mapping strategy
  to the primary table of its superclass; it is used within a
  <A HREF="../../javax/persistence/SecondaryTable.html" title="annotation in javax.persistence"><CODE>SecondaryTable</CODE></A> annotation to join a secondary table
  to a primary table; and it may be used in a <A HREF="../../javax/persistence/OneToOne.html" title="annotation in javax.persistence"><CODE>OneToOne</CODE></A>
  mapping in which the primary key of the referencing entity
  is used as a foreign key to the referenced entity.

  <p> If no <code>PrimaryKeyJoinColumn</code> annotation is
  specified for a subclass in the <code>JOINED</code>
  mapping strategy, the foreign key columns are assumed
  to have the same names as the primary key columns of the
  primary table of the superclass.

  <pre>

     Example: Customer and ValuedCustomer subclass

     &#064;Entity
     &#064;Table(name="CUST")
     &#064;Inheritance(strategy=JOINED)
     &#064;DiscriminatorValue("CUST")
     public class Customer { ... }

     &#064;Entity
     &#064;Table(name="VCUST")
     &#064;DiscriminatorValue("VCUST")
     &#064;PrimaryKeyJoinColumn(name="CUST_ID")
     public class ValuedCustomer extends Customer { ... }
  </pre>
 <P>

 <P>
 <DL>
 <DT><B>See Also:</B><DD><A HREF="../../javax/persistence/SecondaryTable.html" title="annotation in javax.persistence"><CODE>SecondaryTable</CODE></A>,
 <A HREF="../../javax/persistence/Inheritance.html" title="annotation in javax.persistence"><CODE>Inheritance</CODE></A>,
 <A HREF="../../javax/persistence/OneToOne.html" title="annotation in javax.persistence"><CODE>OneToOne</CODE></A><DT><B>Since:</B></DT>
   <DD>Java Persistence 1.0</DD>
 </DL>
 <HR>

 <P>
 <!-- =========== ANNOTATION TYPE OPTIONAL MEMBER SUMMARY =========== -->

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 <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
 <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
 <B>Optional Element Summary</B></FONT></TH>
 </TR>
 <TR BGCOLOR="white" CLASS="TableRowColor">
 <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
 <CODE>&nbsp;java.lang.String</CODE></FONT></TD>
 <TD><CODE><B><A HREF="../../javax/persistence/PrimaryKeyJoinColumn.html#columnDefinition()">columnDefinition</A></B></CODE>

 <BR>
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(Optional) The SQL fragment that is used when generating the
  DDL for the column.</TD>
 </TR>
 <TR BGCOLOR="white" CLASS="TableRowColor">
 <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
 <CODE>&nbsp;java.lang.String</CODE></FONT></TD>
 <TD><CODE><B><A HREF="../../javax/persistence/PrimaryKeyJoinColumn.html#name()">name</A></B></CODE>

 <BR>
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(Optional) The name of the primary key column of the current table.</TD>
 </TR>
 <TR BGCOLOR="white" CLASS="TableRowColor">
 <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
 <CODE>&nbsp;java.lang.String</CODE></FONT></TD>
 <TD><CODE><B><A HREF="../../javax/persistence/PrimaryKeyJoinColumn.html#referencedColumnName()">referencedColumnName</A></B></CODE>

 <BR>
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(Optional) The name of the primary key column of the table
  being joined to.</TD>
 </TR>
 </TABLE>
 &nbsp;
 <P>
 <A NAME="name()"><!-- --></A><H3>
 name</H3>
 <PRE>
 public abstract java.lang.String <B>name</B></PRE>
 <DL>
 <DD>(Optional) The name of the primary key column of the current table.
  <p> Defaults to the same name as the primary key column
  of the primary table of the superclass (<code>JOINED</code> mapping strategy); the same
  name as the primary key column of the primary table
  (<code>SecondaryTable</code> mapping); or the same name as the
  primary key column for the table for the referencing entity
  (<code>OneToOne</code> mapping).
 <P>
 <DD><DL>
 </DL>
 </DD>
 <DD><DL>
 </DL>
 <DL>
 <DT><B>Default:</B><DD>""</DD>
 </DL>
 </DL>
 <HR>

 <A NAME="referencedColumnName()"><!-- --></A><H3>
 referencedColumnName</H3>
 <PRE>
 public abstract java.lang.String <B>referencedColumnName</B></PRE>
 <DL>
 <DD>(Optional) The name of the primary key column of the table
  being joined to.  <p> Defaults to the same name as the primary
  key column of the primary table of the superclass
  (<code>JOINED</code> mapping strategy); the same name as the
  primary key column of the primary table
  (<code>SecondaryTable</code> mapping); or the same name as the
  primary key column for the table for the referencing entity
  (<code>OneToOne</code> mapping).
 <P>
 <DD><DL>
 </DL>
 </DD>
 <DD><DL>
 </DL>
 <DL>
 <DT><B>Default:</B><DD>""</DD>
 </DL>
 </DL>
 <HR>

 <A NAME="columnDefinition()"><!-- --></A><H3>
 columnDefinition</H3>
 <PRE>
 public abstract java.lang.String <B>columnDefinition</B></PRE>
 <DL>
 <DD>(Optional) The SQL fragment that is used when generating the
  DDL for the column. This should not be specified for a
  <code>OneToOne</code> primary key association.
  <p> Defaults to the generated SQL to create a column of the
  inferred type.
 <P>
 <DD><DL>
 </DL>
 </DD>
 <DD><DL>
 </DL>
 <DL>
 <DT><B>Default:</B><DD>""</DD>
 </DL>
 </DL>
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	<H2>
	<FONT SIZE="-1">
	javax.persistence</FONT>
	<BR>
	Annotation Type PrimaryKeyJoinColumn</H2>
	<HR>
	<DL>
	<DT><PRE><FONT SIZE="-1">@Target(value={TYPE,METHOD,FIELD})
	@Retention(value=RUNTIME)
	</FONT>public @interface <B>PrimaryKeyJoinColumn</B></DL>
	</PRE>

	<P>
	Specifies a primary key column that is used as a foreign key to
	join to another table.

	<p> It is used to join the primary table of an entity subclass
	in the <A HREF="../../javax/persistence/InheritanceType.html#JOINED"><CODE>JOINED</CODE></A> mapping strategy
	to the primary table of its superclass; it is used within a
	<A HREF="../../javax/persistence/SecondaryTable.html" title="annotation in javax.persistence"><CODE>SecondaryTable</CODE></A> annotation to join a secondary table
	to a primary table; and it may be used in a <A HREF="../../javax/persistence/OneToOne.html" title="annotation in javax.persistence"><CODE>OneToOne</CODE></A>
	mapping in which the primary key of the referencing entity
	is used as a foreign key to the referenced entity.

	<p> If no <code>PrimaryKeyJoinColumn</code> annotation is
	specified for a subclass in the <code>JOINED</code>
	mapping strategy, the foreign key columns are assumed
	to have the same names as the primary key columns of the
	primary table of the superclass.

	<pre>

	Example: Customer and ValuedCustomer subclass

	@Entity
	@Table(name="CUST")
	@Inheritance(strategy=JOINED)
	@DiscriminatorValue("CUST")
	public class Customer { ... }

	@Entity
	@Table(name="VCUST")
	@DiscriminatorValue("VCUST")
	@PrimaryKeyJoinColumn(name="CUST_ID")
	public class ValuedCustomer extends Customer { ... }
	</pre>
	<P>

	<P>
	<DL>
	<DT><B>See Also:</B><DD><A HREF="../../javax/persistence/SecondaryTable.html" title="annotation in javax.persistence"><CODE>SecondaryTable</CODE></A>,
	<A HREF="../../javax/persistence/Inheritance.html" title="annotation in javax.persistence"><CODE>Inheritance</CODE></A>,
	<A HREF="../../javax/persistence/OneToOne.html" title="annotation in javax.persistence"><CODE>OneToOne</CODE></A><DT><B>Since:</B></DT>
	<DD>Java Persistence 1.0</DD>
	</DL>
	<HR>

	<P>
	<!-- =========== ANNOTATION TYPE OPTIONAL MEMBER SUMMARY =========== -->

	<A NAME="annotation_type_optional_element_summary"><!-- --></A>
	<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
	<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
	<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
	<B>Optional Element Summary</B></FONT></TH>
	</TR>
	<TR BGCOLOR="white" CLASS="TableRowColor">
	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
	<CODE> java.lang.String</CODE></FONT></TD>
	<TD><CODE><B><A HREF="../../javax/persistence/PrimaryKeyJoinColumn.html#columnDefinition()">columnDefinition</A></B></CODE>

	<BR>
	(Optional) The SQL fragment that is used when generating the
	DDL for the column.</TD>
	</TR>
	<TR BGCOLOR="white" CLASS="TableRowColor">
	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
	<CODE> java.lang.String</CODE></FONT></TD>
	<TD><CODE><B><A HREF="../../javax/persistence/PrimaryKeyJoinColumn.html#name()">name</A></B></CODE>

	<BR>
	(Optional) The name of the primary key column of the current table.</TD>
	</TR>
	<TR BGCOLOR="white" CLASS="TableRowColor">
	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
	<CODE> java.lang.String</CODE></FONT></TD>
	<TD><CODE><B><A HREF="../../javax/persistence/PrimaryKeyJoinColumn.html#referencedColumnName()">referencedColumnName</A></B></CODE>

	<BR>
	(Optional) The name of the primary key column of the table
	being joined to.</TD>
	</TR>
	</TABLE>

	<P>
	<A NAME="name()"><!-- --></A><H3>
	name</H3>
	<PRE>
	public abstract java.lang.String <B>name</B></PRE>
	<DL>
	<DD>(Optional) The name of the primary key column of the current table.
	<p> Defaults to the same name as the primary key column
	of the primary table of the superclass (<code>JOINED</code> mapping strategy); the same
	name as the primary key column of the primary table
	(<code>SecondaryTable</code> mapping); or the same name as the
	primary key column for the table for the referencing entity
	(<code>OneToOne</code> mapping).
	<P>
	<DD><DL>
	</DL>
	</DD>
	<DD><DL>
	</DL>
	<DL>
	<DT><B>Default:</B><DD>""</DD>
	</DL>
	</DL>
	<HR>

	<A NAME="referencedColumnName()"><!-- --></A><H3>
	referencedColumnName</H3>
	<PRE>
	public abstract java.lang.String <B>referencedColumnName</B></PRE>
	<DL>
	<DD>(Optional) The name of the primary key column of the table
	being joined to. <p> Defaults to the same name as the primary
	key column of the primary table of the superclass
	(<code>JOINED</code> mapping strategy); the same name as the
	primary key column of the primary table
	(<code>SecondaryTable</code> mapping); or the same name as the
	primary key column for the table for the referencing entity
	(<code>OneToOne</code> mapping).
	<P>
	<DD><DL>
	</DL>
	</DD>
	<DD><DL>
	</DL>
	<DL>
	<DT><B>Default:</B><DD>""</DD>
	</DL>
	</DL>
	<HR>

	<A NAME="columnDefinition()"><!-- --></A><H3>
	columnDefinition</H3>
	<PRE>
	public abstract java.lang.String <B>columnDefinition</B></PRE>
	<DL>
	<DD>(Optional) The SQL fragment that is used when generating the
	DDL for the column. This should not be specified for a
	<code>OneToOne</code> primary key association.
	<p> Defaults to the generated SQL to create a column of the
	inferred type.
	<P>
	<DD><DL>
	</DL>
	</DD>
	<DD><DL>
	</DL>
	<DL>
	<DT><B>Default:</B><DD>""</DD>
	</DL>
	</DL>
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