[JIRA-OS] Created: (WW-295) IteratorTag to put itself onto the stack

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  http://jira.opensymphony.com/secure/ViewIssue.jspa?key=WW-295


Here is an overview of the issue:
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        Key: WW-295
    Summary: IteratorTag to put itself onto the stack
       Type: Improvement

     Status: Assigned
   Priority: Major

    Project: WebWork
   Versions:
             2.0-beta1

   Assignee: Patrick Lightbody
   Reporter: Mike Mosiewicz

    Created: Fri, 5 Sep 2003 2:46 PM
    Updated: Fri, 5 Sep 2003 2:46 PM

Description:
I think that IteratorTag should push itself on the stack (and pop it away when it's finished).

This way you are able for example to built visible components that are iterator-aware. 

For example you could assume that you have a reusable visual component that may be used inside iterations. In case when iterator is actually accessible somewhere, the component may be able to get current iteration status without knowing any context variables that iterator exported.

Currently you have to put variable-name contract between components. In case when iterator is on the stack, no such contract is necessary, cause the component is able to answer the question "is there any iterator I'm called from?".

This also means that iterator status should not be optional. Instead it should rather be lazy-initialized.

Maybe I'll just commit a patch.


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