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From "mailmarshal@indexmultimedia.com (JIRA)" <j...@apache.org>
Subject [jira] Commented: (SHALE-188) Add a default outcome to the dialog manager
Date Tue, 02 Jan 2007 21:08:19 GMT

    [ http://issues.apache.org/struts/browse/SHALE-188?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_39516
] 

mailmarshal@indexmultimedia.com commented on SHALE-188:
-------------------------------------------------------

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Subject: "[jira] Commented: (SHALE-188) Add a default outcome to the dialog manager"
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> Add a default outcome to the dialog manager
> -------------------------------------------
>
>                 Key: SHALE-188
>                 URL: http://issues.apache.org/struts/browse/SHALE-188
>             Project: Shale
>          Issue Type: Improvement
>          Components: Dialog
>         Environment: Debian Linux - JDK 1.5
>            Reporter: Laure Goudon
>             Fix For: 1.0.4-SNAPSHOT
>
>
> Version from manifest: Implementation-Version: 20060326
> Hello,
> When we click on the browser back button while in a dialog and then click on another
link or button, an Illegal argument exception comes (see stacktrace). This error occurs because
Shale can't find any transition for this action. It would be a good idea that we could have
a default transition (for instance named "*" or "default") that the dialog navigation handler
class would use if no other transition was found for this state or dialog.
> Thanks.
> stacktrace :
> java.lang.IllegalArgumentException: You have requested a transition outcome named "clusterMenu"
from a state named "viewApplicationView" in a dialog named "viewApplication", but no transition
definition can be found.  Double check the spelling of the transition outcome name.
> 	at org.apache.shale.dialog.faces.DialogNavigationHandler.transition(DialogNavigationHandler.java:526)
> 	at org.apache.shale.dialog.faces.DialogNavigationHandler.postprocess(DialogNavigationHandler.java:353)
> 	at org.apache.shale.dialog.faces.DialogNavigationHandler.handleNavigation(DialogNavigationHandler.java:219)
> 	at org.apache.myfaces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:84)
> 	at javax.faces.component.UICommand.broadcast(UICommand.java:106)
> 	at org.apache.myfaces.custom.navmenu.htmlnavmenu.HtmlCommandNavigationItem.broadcast(HtmlCommandNavigationItem.java:228)
> Proposed solution :
> In the class DialogNavigationHandler in the method transition
> 	/** Default outcome name constant as in :
> 	 *  <transition outcome="*" target="exit"/>
> 	 */
> 	public static final String DEFAULT_OUTCOME_NAME = "*";
>         // Identify the appropriate Transition
>         Transition transition = state.findTransition(outcome);
>         if (transition == null) {
>             transition = state.getDialog().findTransition(outcome);
> 	  // ---- Begin patch ----
> 	  // If not found, check the default outcome for the current state
>           if (transition == null) {
> 	     Transition transition = state.findTransition(outcome);
> 	     // If not found, check the default outcome for the current dialog.
> 	     if (transition == null) {
> 	       transition = state.getDialog().findTransition(DEFAULT_OUTCOME_NAME);
> 	     }
> 	  }
> 	  // ---- End patch ----
>         }
> 	if (transition == null) {
>             throw new IllegalArgumentException(messages.getMessage("dialog.noTransition",
>                                                new Object[] { outcome,
>                                                               state.getName(),
>                                                               state.getDialog().getName()
}));
>         }

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