| <!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 1.6.0_05-ea) on Fri Oct 10 11:21:06 PDT 2008 --> |
| <META http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> |
| <TITLE> |
| Unique (JDO2 API 2.2) |
| </TITLE> |
| |
| <META NAME="date" CONTENT="2008-10-10"> |
| |
| <LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style"> |
| |
| <SCRIPT type="text/javascript"> |
| function windowTitle() |
| { |
| if (location.href.indexOf('is-external=true') == -1) { |
| parent.document.title="Unique (JDO2 API 2.2)"; |
| } |
| } |
| </SCRIPT> |
| <NOSCRIPT> |
| </NOSCRIPT> |
| |
| </HEAD> |
| |
| <BODY BGCOLOR="white" onload="windowTitle();"> |
| <HR> |
| |
| |
| <!-- ========= 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="class-use/Unique.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </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/jdo/annotations/Transactional.html" title="annotation in javax.jdo.annotations"><B>PREV CLASS</B></A> |
| <A HREF="../../../javax/jdo/annotations/Uniques.html" title="annotation in javax.jdo.annotations"><B>NEXT CLASS</B></A></FONT></TD> |
| <TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> |
| <A HREF="../../../index.html?javax/jdo/annotations/Unique.html" target="_top"><B>FRAMES</B></A> |
| <A HREF="Unique.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.jdo.annotations</FONT> |
| <BR> |
| Annotation Type Unique</H2> |
| <HR> |
| <DL> |
| <DT><PRE><FONT SIZE="-1">@Target(value={TYPE,FIELD,METHOD}) |
| @Retention(value=RUNTIME) |
| </FONT>public @interface <B>Unique</B></DL> |
| </PRE> |
| |
| <P> |
| Annotation for a database unique constraint. Used for database schema |
| generation to create unique constraints. Also used to reorder database |
| operations when flushing changes to avoid unique constraint violations. |
| Corresponds to the xml element "unique". |
| <P> |
| |
| <P> |
| <DL> |
| <DT><B>Since:</B></DT> |
| <DD>2.1</DD> |
| <DT><B>Version:</B></DT> |
| <DD>2.1</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="../../../javax/jdo/annotations/Column.html" title="annotation in javax.jdo.annotations">Column</A>[]</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../javax/jdo/annotations/Unique.html#columns()">columns</A></B></CODE> |
| |
| <BR> |
| Columns that compose this unique constraint.</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/jdo/annotations/Unique.html#deferred()">deferred</A></B></CODE> |
| |
| <BR> |
| Whether this unique constraint is deferred until commit.</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/jdo/annotations/Unique.html#members()">members</A></B></CODE> |
| |
| <BR> |
| Member (field and property) names that compose this unique constraint.</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/jdo/annotations/Unique.html#name()">name</A></B></CODE> |
| |
| <BR> |
| Name of the unique constraint.</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/jdo/annotations/Unique.html#table()">table</A></B></CODE> |
| |
| <BR> |
| Table for the unique constraint.</TD> |
| </TR> |
| </TABLE> |
| |
| <P> |
| <A NAME="name()"><!-- --></A><H3> |
| name</H3> |
| <PRE> |
| public abstract java.lang.String <B>name</B></PRE> |
| <DL> |
| <DD>Name of the unique constraint. |
| <P> |
| <DD><DL> |
| </DL> |
| </DD> |
| <DD><DL> |
| |
| <DT><B>Returns:</B><DD>the name of the unique constraint</DL> |
| <DL> |
| <DT><B>Default:</B><DD>""</DD> |
| </DL> |
| </DL> |
| <HR> |
| |
| <A NAME="table()"><!-- --></A><H3> |
| table</H3> |
| <PRE> |
| public abstract java.lang.String <B>table</B></PRE> |
| <DL> |
| <DD>Table for the unique constraint. This is needed iff annotating a type |
| where this unique constraint is not for the primary table for |
| the persistent class or interface. |
| <P> |
| <DD><DL> |
| </DL> |
| </DD> |
| <DD><DL> |
| |
| <DT><B>Returns:</B><DD>the table on which the unique constraint is defined</DL> |
| <DL> |
| <DT><B>Default:</B><DD>""</DD> |
| </DL> |
| </DL> |
| <HR> |
| |
| <A NAME="deferred()"><!-- --></A><H3> |
| deferred</H3> |
| <PRE> |
| public abstract java.lang.String <B>deferred</B></PRE> |
| <DL> |
| <DD>Whether this unique constraint is deferred until commit. |
| <P> |
| <DD><DL> |
| </DL> |
| </DD> |
| <DD><DL> |
| |
| <DT><B>Returns:</B><DD>whether this unique constraint is deferred until commit</DL> |
| <DL> |
| <DT><B>Default:</B><DD>""</DD> |
| </DL> |
| </DL> |
| <HR> |
| |
| <A NAME="members()"><!-- --></A><H3> |
| members</H3> |
| <PRE> |
| public abstract java.lang.String[] <B>members</B></PRE> |
| <DL> |
| <DD>Member (field and property) names that compose this unique constraint. |
| <P> |
| <DD><DL> |
| </DL> |
| </DD> |
| <DD><DL> |
| |
| <DT><B>Returns:</B><DD>member names that compose this unique constraint</DL> |
| <DL> |
| <DT><B>Default:</B><DD>{}</DD> |
| </DL> |
| </DL> |
| <HR> |
| |
| <A NAME="columns()"><!-- --></A><H3> |
| columns</H3> |
| <PRE> |
| public abstract <A HREF="../../../javax/jdo/annotations/Column.html" title="annotation in javax.jdo.annotations">Column</A>[] <B>columns</B></PRE> |
| <DL> |
| <DD>Columns that compose this unique constraint. |
| <P> |
| <DD><DL> |
| </DL> |
| </DD> |
| <DD><DL> |
| |
| <DT><B>Returns:</B><DD>columns that compose this unique constraint</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="class-use/Unique.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </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/jdo/annotations/Transactional.html" title="annotation in javax.jdo.annotations"><B>PREV CLASS</B></A> |
| <A HREF="../../../javax/jdo/annotations/Uniques.html" title="annotation in javax.jdo.annotations"><B>NEXT CLASS</B></A></FONT></TD> |
| <TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> |
| <A HREF="../../../index.html?javax/jdo/annotations/Unique.html" target="_top"><B>FRAMES</B></A> |
| <A HREF="Unique.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> |
| Copyright © 2005-2008 Apache Software Foundation. All Rights Reserved. |
| </BODY> |
| </HTML> |
