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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc (build 1.5.0_14) on Mon Jan 28 05:47:04 PST 2008 --><TITLE>JoinTable (Java EE 5)</TITLE><META NAME="keywords" CONTENT="javax.persistence.JoinTable class"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="JoinTable (Java EE 5)";}</SCRIPT><NOSCRIPT></NOSCRIPT></HEAD><BODY BGCOLOR="white" onload="windowTitle();"><!-- ========= START OF TOP NAVBAR ======= --><A NAME="navbar_top"><!-- --></A><A HREF="#skip-navbar_top" title="Skip navigation links"></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""><TR><TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR></TABLE></TD><TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../javax/persistence/JoinColumns.html" title="annotation in javax.persistence"><B>PREV CLASS</B></A> <A HREF="../../javax/persistence/Lob.html" title="annotation in javax.persistence"><B>NEXT CLASS</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../index.html?javax/persistence/JoinTable.html" target="_top"><B>FRAMES</B></A> <A HREF="JoinTable.html" target="_top"><B>NO FRAMES</B></A> <SCRIPT type="text/javascript"> <!-- if(window==top) { document.writeln('<A HREF="../../allclasses-noframe.html"><B>All Classes</B></A>'); } //--></SCRIPT><NOSCRIPT> <A HREF="../../allclasses-noframe.html"><B>All Classes</B></A></NOSCRIPT></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: REQUIRED | <A HREF="#annotation_type_optional_element_summary">OPTIONAL</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: <A HREF="#annotation_type_element_detail">ELEMENT</A></FONT></TD></TR></TABLE><A NAME="skip-navbar_top"></A><!-- ========= END OF TOP NAVBAR ========= --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">javax.persistence</FONT><BR>Annotation Type JoinTable</H2><HR><DL><DT><PRE><FONT SIZE="-1"><A HREF="http://java.sun.com/j2se/1.5/docs/api/java/lang/annotation/Target.html" title="class or interface in java.lang.annotation">@Target</A>(<A HREF="http://java.sun.com/j2se/1.5/docs/api/java/lang/annotation/Target.html#value()" title="class or interface in java.lang.annotation">value</A>={<A HREF="http://java.sun.com/j2se/1.5/docs/api/java/lang/annotation/ElementType.html#METHOD" title="class or interface in java.lang.annotation">METHOD</A>,<A HREF="http://java.sun.com/j2se/1.5/docs/api/java/lang/annotation/ElementType.html#FIELD" title="class or interface in java.lang.annotation">FIELD</A>})<A HREF="http://java.sun.com/j2se/1.5/docs/api/java/lang/annotation/Retention.html" title="class or interface in java.lang.annotation">@Retention</A>(<A HREF="http://java.sun.com/j2se/1.5/docs/api/java/lang/annotation/Retention.html#value()" title="class or interface in java.lang.annotation">value</A>=<A HREF="http://java.sun.com/j2se/1.5/docs/api/java/lang/annotation/RetentionPolicy.html#RUNTIME" title="class or interface in java.lang.annotation">RUNTIME</A>)</FONT>public @interface <B>JoinTable</B></DL></PRE><P>This annotation is used in the mapping of associations. It is specified on the owning side of a many-to-many association, or in a unidirectional one-to-many association. <p> If the <code>JoinTable</code> annotation is missing, the default values of the annotation elements apply. The name of the join table is assumed to be the table names of the associated primary tables concatenated together (owning side first) using an underscore. <pre> Example: @JoinTable( name="CUST_PHONE", joinColumns= @JoinColumn(name="CUST_ID", referencedColumnName="ID"), inverseJoinColumns= @JoinColumn(name="PHONE_ID", referencedColumnName="ID") ) </pre><P><P><DL><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> <A HREF="http://java.sun.com/j2se/1.5/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/persistence/JoinTable.html#catalog()">catalog</A></B></CODE><BR> (Optional) The catalog of the table.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../javax/persistence/JoinColumn.html" title="annotation in javax.persistence">JoinColumn</A>[]</CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/persistence/JoinTable.html#inverseJoinColumns()">inverseJoinColumns</A></B></CODE><BR> (Optional) The foreign key columns of the join table which reference the primary table of the entity that does not own the association (i.e. the inverse side of the association).</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../javax/persistence/JoinColumn.html" title="annotation in javax.persistence">JoinColumn</A>[]</CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/persistence/JoinTable.html#joinColumns()">joinColumns</A></B></CODE><BR> (Optional) The foreign key columns of the join table which reference the primary table of the entity owning the association (i.e. the owning side of the association).</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="http://java.sun.com/j2se/1.5/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/persistence/JoinTable.html#name()">name</A></B></CODE><BR> (Optional) The name of the join table.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="http://java.sun.com/j2se/1.5/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/persistence/JoinTable.html#schema()">schema</A></B></CODE><BR> (Optional) The schema of the table.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../javax/persistence/UniqueConstraint.html" title="annotation in javax.persistence">UniqueConstraint</A>[]</CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/persistence/JoinTable.html#uniqueConstraints()">uniqueConstraints</A></B></CODE><BR> (Optional) Unique constraints that are to be placed on the table.</TD></TR></TABLE> <P><A NAME="name()"><!-- --></A><H3>name</H3><PRE>public abstract <A HREF="http://java.sun.com/j2se/1.5/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> <B>name</B></PRE><DL><DD>(Optional) The name of the join table. <p> Defaults to the concatenated names of the two associated primary entity tables, separated by an underscore.<P><DD><DL></DL></DD><DD><DL></DL><DL><DT><B>Default:</B><DD>""</DD></DL></DL><HR><A NAME="catalog()"><!-- --></A><H3>catalog</H3><PRE>public abstract <A HREF="http://java.sun.com/j2se/1.5/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> <B>catalog</B></PRE><DL><DD>(Optional) The catalog of the table. <p> Defaults to the default catalog.<P><DD><DL></DL></DD><DD><DL></DL><DL><DT><B>Default:</B><DD>""</DD></DL></DL><HR><A NAME="schema()"><!-- --></A><H3>schema</H3><PRE>public abstract <A HREF="http://java.sun.com/j2se/1.5/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> <B>schema</B></PRE><DL><DD>(Optional) The schema of the table. <p> Defaults to the default schema for user.<P><DD><DL></DL></DD><DD><DL></DL><DL><DT><B>Default:</B><DD>""</DD></DL></DL><HR><A NAME="joinColumns()"><!-- --></A><H3>joinColumns</H3><PRE>public abstract <A HREF="../../javax/persistence/JoinColumn.html" title="annotation in javax.persistence">JoinColumn</A>[] <B>joinColumns</B></PRE><DL><DD>(Optional) The foreign key columns of the join table which reference the primary table of the entity owning the association (i.e. the owning side of the association). <p> Uses the same defaults as for <A HREF="../../javax/persistence/JoinColumn.html" title="annotation in javax.persistence"><CODE>JoinColumn</CODE></A>.<P><DD><DL></DL></DD><DD><DL></DL><DL><DT><B>Default:</B><DD>{}</DD></DL></DL><HR><A NAME="inverseJoinColumns()"><!-- --></A><H3>inverseJoinColumns</H3><PRE>public abstract <A HREF="../../javax/persistence/JoinColumn.html" title="annotation in javax.persistence">JoinColumn</A>[] <B>inverseJoinColumns</B></PRE><DL><DD>(Optional) The foreign key columns of the join table which reference the primary table of the entity that does not own the association (i.e. the inverse side of the association). <p> Uses the same defaults as for <A HREF="../../javax/persistence/JoinColumn.html" title="annotation in javax.persistence"><CODE>JoinColumn</CODE></A>.<P><DD><DL></DL></DD><DD><DL></DL><DL><DT><B>Default:</B><DD>{}</DD></DL></DL><HR><A NAME="uniqueConstraints()"><!-- --></A><H3>uniqueConstraints</H3><PRE>public abstract <A HREF="../../javax/persistence/UniqueConstraint.html" title="annotation in javax.persistence">UniqueConstraint</A>[] <B>uniqueConstraints</B></PRE><DL><DD>(Optional) Unique constraints that are to be placed on the table. These are only used if table generation is in effect. <p> Defaults to no additional constraints.<P><DD><DL></DL></DD><DD><DL></DL><DL><DT><B>Default:</B><DD>{}</DD></DL></DL><!-- ========= END OF CLASS DATA ========= --><HR><!-- ======= START OF BOTTOM NAVBAR ====== --><A NAME="navbar_bottom"><!-- --></A><A HREF="#skip-navbar_bottom" title="Skip navigation links"></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""><TR><TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_bottom_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR></TABLE></TD><TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../javax/persistence/JoinColumns.html" title="annotation in javax.persistence"><B>PREV CLASS</B></A> <A HREF="../../javax/persistence/Lob.html" title="annotation in javax.persistence"><B>NEXT CLASS</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../index.html?javax/persistence/JoinTable.html" target="_top"><B>FRAMES</B></A> <A HREF="JoinTable.html" target="_top"><B>NO FRAMES</B></A> <SCRIPT type="text/javascript"> <!-- if(window==top) { document.writeln('<A HREF="../../allclasses-noframe.html"><B>All Classes</B></A>'); } //--></SCRIPT><NOSCRIPT> <A HREF="../../allclasses-noframe.html"><B>All Classes</B></A></NOSCRIPT></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: REQUIRED | <A HREF="#annotation_type_optional_element_summary">OPTIONAL</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: <A HREF="#annotation_type_element_detail">ELEMENT</A></FONT></TD></TR></TABLE><A NAME="skip-navbar_bottom"></A><!-- ======== END OF BOTTOM NAVBAR ======= --><HR><font size="-1"><a href="http://java.sun.com/webapps/bugreport">Submit a bug or feature</a> <p>Copyright 2007 Sun Microsystems, Inc. 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