arrays and other indexed collections

[Matthew Van Horn <ma...@yahoo.com>]

What is the 'right' way to access a particular element of an collection?
I may have missed something obvious, as I am sleepy, but I can't see how
to do this without a lot of unecessary looping.

as an example, I have objects like this in my context
public class Foo {
	List bars;
	String[] baz;
	...
}
public class Bar {
	String name;
	...
}

I want to show a table with a row for each Foo, and a cell showing the
name of the Foo's first Bar, and a cell with the first baz
in Java this would be:

myFoo.getBars().get(0).getName()
myFoo.getBaz()[0];

but I am not sure how to do this in velocity, especially if I want to
use an index other than 0. 	

Thank for any help,
-- 
Matthew Van Horn <ma...@yahoo.com>


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Re: arrays and other indexed collections

[Nathan Bubna <na...@esha.com>]

Matthew Van Horn said:
> What is the 'right' way to access a particular element of an collection?
> I may have missed something obvious, as I am sleepy, but I can't see how
> to do this without a lot of unecessary looping.
...
> in Java this would be:
> 
> myFoo.getBars().get(0).getName()
> myFoo.getBaz()[0];
> 
> but I am not sure how to do this in velocity, especially if I want to
> use an index other than 0. 

in VTL this would be:

$myFoo.bars.get($someIntegerOtherThanZero).name
$myArrayTool.getElement($sIOTZ, $myFoo.baz)

or else amend your java to make "getBaz()" return a List.

Nathan Bubna
nathan@esha.com

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