Sending it again. For some reason the mail never got delivered. _____________________________________________ From: Madhav Bhargava Sent: Wednesday, February 28, 2007 11:29 AM To: 'MyFaces Discussion' Subject: RE: t:datatable with commandLink and parameter
Hi Craig, According to the tutorial at the link: http://java.sun.com/j2ee/1.4/docs/tutorial/doc/JSFConfigure7.html "The navigation criteria are defined by optional from-outcome and from-action elements. The from-outcome element defines a logical outcome, such as success. The from-action element uses a method-binding expression to refer to an action method that returns a String, which is the logical outcome. The method performs some logic to determine the outcome and returns the outcome." Does it mean that <from-action> will not execute the action method but only derive the outcome of the action method? If yes then what happens when the return String value is a result of the computation that goes inside the action method? And if it executes the action method then what is the difference from using <from-outcome> as it is finally going to go to the outcome produced by the action method. Could you please throw some more light on <from-action> usage? Rgds, Madhav > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Craig > McClanahan > Sent: Wednesday, February 28, 2007 7:24 AM > To: MyFaces Discussion > Subject: Re: t:datatable with commandLink and parameter > > On 2/27/07, Mike Kienenberger <[EMAIL PROTECTED]> wrote: > > Simon, > > > > I don't have any JSF books handy. What's the difference between > > from-action and from-outcome? I thought outcome was the string > > returned from an action method? > > You can use either or both. > > * <from-action> describes the EL expression that triggered > calling your action. This is useful if you have multiple buttons > on the form, bound to different actions. (It's also legal to > have more than one command component bound to the same > action method ... for example, a "next page" or "previous page" > link at both the top and bottom of a long page. > > * <from-outcome> describes the logical outcome returned by > whatever action was invoked. This is useful if you want to > go different places depending on what happened inside an action. > > If you use just <from-action>, your navigation rule is triggered > whenever that action is executed, no matter what outcome was returned. > If you use just <from-outcome>, your navigation rule is triggered > when that outcome is returned by any action that was processed. Or, > you can use them together to define more precisely when this > navigation should be triggered. > > Craig > > > > > > On 2/27/07, Simon Kitching <[EMAIL PROTECTED]> wrote: > > > Mike Kienenberger wrote: > > > > By the way, > > > > > > > > I don't think this is legal: > > > > > > > > <from-action>#{ userBackingBean.prepareForEdit}</from-action> > > > > > > > > If it is legal, I doubt that's the correct syntax. > > > > > > Yep. The from-action value is meant to match the string *returned* > from > > > an action method. It is not an EL expression. > > > > > > I suggest you find a good JSF book and read the section on navigation. > > > > > > Regards, > > > > > > Simon > > > > > **************** CAUTION - Disclaimer ***************** This e-mail contains PRIVILEGED AND CONFIDENTIAL INFORMATION intended solely for the use of the addressee(s). If you are not the intended recipient, please notify the sender by e-mail and delete the original message. Further, you are not to copy, disclose, or distribute this e-mail or its contents to any other person and any such actions are unlawful. This e-mail may contain viruses. Infosys has taken every reasonable precaution to minimize this risk, but is not liable for any damage you may sustain as a result of any virus in this e-mail. You should carry out your own virus checks before opening the e-mail or attachment. Infosys reserves the right to monitor and review the content of all messages sent to or from this e-mail address. Messages sent to or from this e-mail address may be stored on the Infosys e-mail system. ***INFOSYS******** End of Disclaimer ********INFOSYS***
