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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>EntityExistsException (Java EE 5)</TITLE><META NAME="keywords" CONTENT="javax.persistence.EntityExistsException class"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="EntityExistsException (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/Entity.html" title="annotation in javax.persistence"><B>PREV CLASS</B></A> <A HREF="../../javax/persistence/EntityListeners.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/EntityExistsException.html" target="_top"><B>FRAMES</B></A> <A HREF="EntityExistsException.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: NESTED | FIELD | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#methods_inherited_from_class_java.lang.Throwable">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: FIELD | <A HREF="#constructor_detail">CONSTR</A> | METHOD</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>Class EntityExistsException</H2><PRE><A HREF="http://java.sun.com/j2se/1.5/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 "><A HREF="http://java.sun.com/j2se/1.5/docs/api/java/lang/Throwable.html" title="class or interface in java.lang">java.lang.Throwable</A> <IMG SRC="../../resources/inherit.gif" ALT="extended by "><A HREF="http://java.sun.com/j2se/1.5/docs/api/java/lang/Exception.html" title="class or interface in java.lang">java.lang.Exception</A> <IMG SRC="../../resources/inherit.gif" ALT="extended by "><A HREF="http://java.sun.com/j2se/1.5/docs/api/java/lang/RuntimeException.html" title="class or interface in java.lang">java.lang.RuntimeException</A> <IMG SRC="../../resources/inherit.gif" ALT="extended by "><A HREF="../../javax/persistence/PersistenceException.html" title="class in javax.persistence">javax.persistence.PersistenceException</A> <IMG SRC="../../resources/inherit.gif" ALT="extended by "><B>javax.persistence.EntityExistsException</B></PRE><DL><DT><B>All Implemented Interfaces:</B> <DD><A HREF="http://java.sun.com/j2se/1.5/docs/api/java/io/Serializable.html" title="class or interface in java.io">Serializable</A></DD></DL><HR><DL><DT><PRE>public class <B>EntityExistsException</B><DT>extends <A HREF="../../javax/persistence/PersistenceException.html" title="class in javax.persistence">PersistenceException</A></DL></PRE><P>Thrown by the persistence provider when <A HREF="../../javax/persistence/EntityManager.html#persist(java.lang.Object)"><CODE>EntityManager.persist(Object)</CODE></A> is called and the entity already exists. The current transaction, if one is active, will be marked for rollback.<P><P><DL><DT><B>Since:</B></DT> <DD>Java Persistence 1.0</DD><DT><B>See Also:</B><DD><A HREF="../../javax/persistence/EntityManager.html#persist(java.lang.Object)"><CODE>EntityManager.persist(Object)</CODE></A>, <A HREF="../../serialized-form.html#javax.persistence.EntityExistsException">Serialized Form</A></DL><HR><P><!-- ======== CONSTRUCTOR SUMMARY ======== --><A NAME="constructor_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>Constructor Summary</B></FONT></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../javax/persistence/EntityExistsException.html#EntityExistsException()">EntityExistsException</A></B>()</CODE><BR> Constructs a new <code>EntityExistsException</code> exception with <code>null</code> as its detail message.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../javax/persistence/EntityExistsException.html#EntityExistsException(java.lang.String)">EntityExistsException</A></B>(<A HREF="http://java.sun.com/j2se/1.5/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> message)</CODE><BR> Constructs a new <code>EntityExistsException</code> exception with the specified detail message.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../javax/persistence/EntityExistsException.html#EntityExistsException(java.lang.String, java.lang.Throwable)">EntityExistsException</A></B>(<A HREF="http://java.sun.com/j2se/1.5/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> message, <A HREF="http://java.sun.com/j2se/1.5/docs/api/java/lang/Throwable.html" title="class or interface in java.lang">Throwable</A> cause)</CODE><BR> Constructs a new <code>EntityExistsException</code> exception with the specified detail message and cause.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../javax/persistence/EntityExistsException.html#EntityExistsException(java.lang.Throwable)">EntityExistsException</A></B>(<A HREF="http://java.sun.com/j2se/1.5/docs/api/java/lang/Throwable.html" title="class or interface in java.lang">Throwable</A> cause)</CODE><BR> Constructs a new <code>EntityExistsException</code> exception with the specified cause.</TD>⌨️ 快捷键说明
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