validationeventhandler.html
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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 05:46:59 PST 2008 --><TITLE>ValidationEventHandler (Java EE 5)</TITLE><META NAME="keywords" CONTENT="javax.xml.bind.ValidationEventHandler interface"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="ValidationEventHandler (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/xml/bind/ValidationEvent.html" title="interface in javax.xml.bind"><B>PREV CLASS</B></A> <A HREF="../../../javax/xml/bind/ValidationEventLocator.html" title="interface in javax.xml.bind"><B>NEXT CLASS</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../index.html?javax/xml/bind/ValidationEventHandler.html" target="_top"><B>FRAMES</B></A> <A HREF="ValidationEventHandler.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 | CONSTR | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: FIELD | CONSTR | <A HREF="#method_detail">METHOD</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.xml.bind</FONT><BR>Interface ValidationEventHandler</H2><DL><DT><B>All Known Implementing Classes:</B> <DD><A HREF="../../../javax/xml/bind/helpers/DefaultValidationEventHandler.html" title="class in javax.xml.bind.helpers">DefaultValidationEventHandler</A>, <A HREF="../../../javax/xml/bind/util/ValidationEventCollector.html" title="class in javax.xml.bind.util">ValidationEventCollector</A></DD></DL><HR><DL><DT><PRE>public interface <B>ValidationEventHandler</B></DL></PRE><P>A basic event handler interface for validation errors. <p> If an application needs to implement customized event handling, it must implement this interface and then register it with either the <A HREF="../../../javax/xml/bind/Unmarshaller.html#setEventHandler(javax.xml.bind.ValidationEventHandler)"><CODE>Unmarshaller</CODE></A>, the <A HREF="../../../javax/xml/bind/Validator.html#setEventHandler(javax.xml.bind.ValidationEventHandler)"><CODE>Validator</CODE></A>, or the <A HREF="../../../javax/xml/bind/Marshaller.html#setEventHandler(javax.xml.bind.ValidationEventHandler)"><CODE>Marshaller</CODE></A>. The JAXB Provider will then report validation errors and warnings encountered during the unmarshal, marshal, and validate operations to these event handlers. <p> If the <tt>handleEvent</tt> method throws an unchecked runtime exception, the JAXB Provider must treat that as if the method returned false, effectively terminating whatever operation was in progress at the time (unmarshal, validate, or marshal). <p> Modifying the Java content tree within your event handler is undefined by the specification and may result in unexpected behaviour. <p> Failing to return false from the <tt>handleEvent</tt> method after encountering a fatal error is undefined by the specification and may result in unexpected behavior. <p> <b>Default Event Handler</b> <blockquote> See: <a href="Validator.html#defaulthandler">Validator javadocs</a> </blockquote><P><P><DL><DT><B>Since:</B></DT> <DD>JAXB1.0</DD><DT><B>Version:</B></DT> <DD>$Revision: 1.1 $</DD><DT><B>Author:</B></DT> <DD><ul><li>Ryan Shoemaker, Sun Microsystems, Inc.</li><li>Kohsuke Kawaguchi, Sun Microsystems, Inc.</li><li>Joe Fialli, Sun Microsystems, Inc.</li></ul></DD><DT><B>See Also:</B><DD><A HREF="../../../javax/xml/bind/Unmarshaller.html" title="interface in javax.xml.bind"><CODE>Unmarshaller</CODE></A>, <A HREF="../../../javax/xml/bind/Validator.html" title="interface in javax.xml.bind"><CODE>Validator</CODE></A>, <A HREF="../../../javax/xml/bind/Marshaller.html" title="interface in javax.xml.bind"><CODE>Marshaller</CODE></A>, <A HREF="../../../javax/xml/bind/ValidationEvent.html" title="interface in javax.xml.bind"><CODE>ValidationEvent</CODE></A>, <A HREF="../../../javax/xml/bind/util/ValidationEventCollector.html" title="class in javax.xml.bind.util"><CODE>ValidationEventCollector</CODE></A></DL><HR><P><!-- ========== METHOD SUMMARY =========== --><A NAME="method_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>Method Summary</B></FONT></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/xml/bind/ValidationEventHandler.html#handleEvent(javax.xml.bind.ValidationEvent)">handleEvent</A></B>(<A HREF="../../../javax/xml/bind/ValidationEvent.html" title="interface in javax.xml.bind">ValidationEvent</A> event)</CODE><BR> Receive notification of a validation warning or error.</TD></TR></TABLE> <P><!-- ============ METHOD DETAIL ========== --><A NAME="method_detail"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"><B>Method Detail</B></FONT></TH></TR></TABLE><A NAME="handleEvent(javax.xml.bind.ValidationEvent)"><!-- --></A><H3>handleEvent</H3><PRE>boolean <B>handleEvent</B>(<A HREF="../../../javax/xml/bind/ValidationEvent.html" title="interface in javax.xml.bind">ValidationEvent</A> event)</PRE><DL><DD>Receive notification of a validation warning or error. The ValidationEvent will have a <A HREF="../../../javax/xml/bind/ValidationEventLocator.html" title="interface in javax.xml.bind"><CODE>ValidationEventLocator</CODE></A> embedded in it that indicates where the error or warning occurred. <p> If an unchecked runtime exception is thrown from this method, the JAXB provider will treat it as if the method returned false and interrupt the current unmarshal, validate, or marshal operation.<P><DD><DL><DT><B>Parameters:</B><DD><CODE>event</CODE> - the encapsulated validation event information. It is a provider error if this parameter is null.<DT><B>Returns:</B><DD>true if the JAXB Provider should attempt to continue the current unmarshal, validate, or marshal operation after handling this warning/error, false if the provider should terminate the current operation with the appropriate <tt>UnmarshalException</tt>, <tt>ValidationException</tt>, or <tt>MarshalException</tt>.<DT><B>Throws:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.5/docs/api/java/lang/IllegalArgumentException.html" title="class or interface in java.lang">IllegalArgumentException</A></CODE> - if the event object is null.</DL></DD></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/xml/bind/ValidationEvent.html" title="interface in javax.xml.bind"><B>PREV CLASS</B></A> <A HREF="../../../javax/xml/bind/ValidationEventLocator.html" title="interface in javax.xml.bind"><B>NEXT CLASS</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../index.html?javax/xml/bind/ValidationEventHandler.html" target="_top"><B>FRAMES</B></A> <A HREF="ValidationEventHandler.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 | CONSTR | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: FIELD | CONSTR | <A HREF="#method_detail">METHOD</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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