----- Original Message -----
From: <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Monday, July 14, 2003 9:19 PM
Subject: [OS-webwork] expression language+value stack
> question, how can I use the value stack in a method invocation in EL?
>
> I want to do something like the following:
> <ww:property value="@myBean">
> <ww:property value="foo('.')" />
> </ww:property>
>
> what is the correct way (if any) to be able to invoke methods
> using arguments off the value stack?
>
Sure you can invoke methods using arguments from the stack. You use the "."
notation for the current value and ".." for the parent value, so you could
write:
<ww:property value="@someAction/foo(.)"/>
This would call the method foo in someAction with the current stack value as
parameter.
In your example you first push @myBean on the stack. Is that because you
want to use it as a parameter, or because the foo method exists in it?
I assume it is because you want to use it as a parameter, and that the foo
method is declared in the action that led to this view. Your example would
then become:
<ww:property value="@myBean">
<ww:property value="foo(.)" />
</ww:property>
But since you obviously already have used the id tag to store myBean in the
page/request context you might as well skip the push and just write:
<ww:property value="foo(@myBean)"/>
Cheers,
Dick Zetterberg
[EMAIL PROTECTED]
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