Almost, but not quite. :) RULES OF THE STACK:
1) The stack is just a stack of objects. 2) Initially the stack contains the Action executed (this is why as you say value="foo" calls action.getFoo()) 3) New objects are placed onto the stack during the body of various tags (like <ww:iterator> or <ww:property> for example) 4) Using the expression language you can navigate UP the stack (ie ../ to move up the stack, / to root an expression from the top of the stack) 5) Using the expression language you can navigate DOWN the object graph from any point on the stack (ie / to move down the object's methods) How is that for a brief primer? Should we put this on the Wiki? Anyone have any other rules to add? -mike On 4/2/03 10:15 AM, "Andre Mermegas" ([EMAIL PROTECTED]) penned the words: > Yeah, I've been looking at the wiki and saw that document, it is very > helpful for the syntax, thanks. > > As far as the value stack goes, I've been thinking about it a bit, and > this is what I've come up with, The stack begins with whatever > properties comes from the Action directly, so "errors" is a base > property because it has a getter/setter in ActionSupport and through > inheritance my Action. > As witnessed by: > > <ww:iterator value="errors"> > key=<ww:property value="key"/>, value=<ww:property > value="value"/><br> > </ww:iterator> > > Anything attached to the Action say for instance a bean that has a > getter/setter; its properties are not visible from the base of the stack > because the getters and setters for the beans properties are not in the > action but are in the bean, so to access them you must prefix the > property value with objectName/propertyname. > > As witenessed by: > name=<ww:property value="testBean/name"/> > > I think I get it now. > > Regards, > -Andre Mermegas > > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]] On Behalf Of > boxed > Sent: Monday, February 03, 2003 5:36 PM > To: [EMAIL PROTECTED] > Subject: Re: [OS-webwork] where might info on this be? > >> 3.) A list of all possible views.properties entries like >> action.* what is available and what does it do. I'm aware of the basic > ones: >> foo.action, foo.success, foo.error, foo.none, foo.input, foo.login for >> having looked at the Action interface but are there any other > possible? I >> don't know. > > The suffixes are just strings. An action returns a String, and that > return > value is what you map in the views.properties file. Nothing more, > nothing > less. > >> 2.) A good explanation of how exactly the value stack works, > > The wiki has a reference: > http://www.opensymphony.com:8668/space/WebWork+Expression+Language+Synta > x > > Anders Hovmöller > [EMAIL PROTECTED] http://boxed.killingar.net > > > > ------------------------------------------------------- > This SF.NET email is sponsored by: > SourceForge Enterprise Edition + IBM + LinuxWorld = Something 2 See! > http://www.vasoftware.com > _______________________________________________ > Opensymphony-webwork mailing list > [EMAIL PROTECTED] > https://lists.sourceforge.net/lists/listinfo/opensymphony-webwork > > > > > ------------------------------------------------------- > This SF.NET email is sponsored by: > SourceForge Enterprise Edition + IBM + LinuxWorld = Something 2 See! > http://www.vasoftware.com > _______________________________________________ > Opensymphony-webwork mailing list > [EMAIL PROTECTED] > https://lists.sourceforge.net/lists/listinfo/opensymphony-webwork ------------------------------------------------------- This SF.NET email is sponsored by: SourceForge Enterprise Edition + IBM + LinuxWorld = Something 2 See! http://www.vasoftware.com _______________________________________________ Opensymphony-webwork mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/opensymphony-webwork
