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Posted to dev@velocity.apache.org by "Nathan Bubna (JIRA)" <de...@velocity.apache.org> on 2010/12/29 07:13:46 UTC
[jira] Resolved: (VELOCITY-692) have #if handle empty
strings/arrays/collections/maps more conveniently
[ https://issues.apache.org/jira/browse/VELOCITY-692?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Nathan Bubna resolved VELOCITY-692.
-----------------------------------
Resolution: Fixed
Fix Version/s: 2.0
Ok, the code is in. And i did drop support for length() and size(), since i really can't see that being used or even very useful.
> have #if handle empty strings/arrays/collections/maps more conveniently
> -----------------------------------------------------------------------
>
> Key: VELOCITY-692
> URL: https://issues.apache.org/jira/browse/VELOCITY-692
> Project: Velocity
> Issue Type: New Feature
> Components: Engine
> Reporter: Nathan Bubna
> Priority: Trivial
> Fix For: 2.0
>
>
> An idea from the dev list:
> -------------------------------------------------------------------------------------------------
> On Sat, Feb 7, 2009 at 3:41 PM, <se...@gmail.com> wrote:
> > Hello,
> > I wanted to share with you a few ideas I have about new simple
> > improvements for DisplayTools. I should be able to make patches for
> > them if you are interested.
> >
> > 1. Add new method
> >
> > isEmpty(object)
> >
> > that will return true if the object is null or empty (for strings it's
> > zero length; for collections, maps and arrays it's zero size). This
> > should help with annoying null checks. (Probably a better place for
> > this method would be Engine, not Tools)
> yeah, not something for tools. would be interesting to have the
> Uberspect pretend that every non-null reference has an isEmpty()
> method, or perhaps just add 0-length strings, empty collections, empty
> maps and 0-length arrays to the list of things that #if( $foo )
> considers false.
> -------------------------------------------------------------------------------------------------
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