Cheers Chris,
Chris Pratt wrote:
>
> You may want to think about using:
>
> invocation.getStack().getContext().put(MAGIC_KEY,getStuff());
>
> instead of:
>
> invocation.getStack().set(MAGIC_KEY,getStuff());
>
> For the sake of argument, I'm going to assume that MAGIC_KEY is set to the
> String "magic". The first example above makes #magic available in the
> Value
> Stack's context, so you can simply use <s:property
> value="%{#magic.gathering}"/> in your JSP to effectively give the same
> results as a call to getStuff().getGathering(). Whereas the second
> example
> changes the stack itself, which may be what's interfering with the other
> interceptors.
>
Is this documented anywhere? For the record, I would be looking for a great
big flashing Red sign saying "If you use the set() routine on the ValueStack
you'll silently blow away all the parameter handling code" for completeness
but I never found one of those yet.
Also for the record, using the set(MAGIC_KEY, this.getStuff()) call makes
'magic' available directly so I can reference it as <s:property
value="magic.gathering" />. I'm not clear in my mind how the alternative
version is better (other than your assertion that it will work :o}).
Later,
Andy
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