RE: [htmltmpl-java] testing for parameter existence

[Costantino, D. <Dan...@gs...>]

Philip,

I downloaded and tested the new Template.java and tested the containsKey()
method.  Unfortunately, this method only works after a call to setParam().
For example, suppose I have the following in my template file:

<tmpl_var name = foo>

if (t.containsKey("foo")) {
	// succeed
}
else {
	// fail
}

that will always fail unless I do the following:

t.setParam ("foo", "bar");
if (t.containsKey("foo")) {
	// succeed
}
else {
	// fail
}

Then it will succeed.

For my purposes, I need to know if a parameter exists before I set its
value.  Is this a piece of functionality which could be added?

Please let me know.

Thanks
-Dan


-----Original Message-----
From: Philip S Tellis [mailto:phi...@gm...]
Sent: Tuesday, December 10, 2002 11:51 PM
To: htm...@li...
Subject: Re: [htmltmpl-java] testing for parameter existence


On Tue, 10 Dec 2002, Costantino, Dan wrote:

> I want to test for the existence of a parameter in a template.  How
> can I do this without generating a java.util.NoSuchElementException?
> 
> At present, I simply wrap each getParam(<test_name>) call around a try ...

Currently this seems to be the only way, but I think it is reasonable 
enough to add another method that will do what you want.  Expect it in 
the next version, or get CVS in a few hours.

Philip

-- 
"If people could put rainbows in zoos, they'd do it." 
		-- Hobbes



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