[jira] Commented: (JELLY-201) NotAvailableTag

["Nacho G. Mac Dowell (JIRA)" <co...@jakarta.apache.org>]

     [ http://issues.apache.org/jira/browse/JELLY-201?page=comments#action_59192 ]
     
Nacho G. Mac Dowell commented on JELLY-201:
-------------------------------------------

Only attachments 2 and 4 should be used. I don't know why the order went weird as it should be attachments 3 and 4...

> NotAvailableTag
> ---------------
>
>          Key: JELLY-201
>          URL: http://issues.apache.org/jira/browse/JELLY-201
>      Project: jelly
>         Type: Improvement
>   Components: taglib.util
>     Reporter: Nacho G. Mac Dowell
>  Attachments: NotAvailableTag.patch, NotAvailableTag.patch, UtilTagLibrary.patch, suite.jelly.patch
>
> It would be useful to have a NotAvailableTag. Even though (for example) mkdir can be called each time without any overhead, sometimes the code would improve readability with the use of this tag.
> Solution:
> Create a method boolean isAvailable() in AvailableTag which does all the job and have the NotAvailableTag extend AvailableTag and in the doTag method:
>         if (!isAvailable()) {
>             invokeBody(output);
>         }

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