[jira] [Commented] (GROOVY-7478) Ability to Cache Patterns

["Jochen Theodorou (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/GROOVY-7478?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14604551#comment-14604551 ] 

Jochen Theodorou commented on GROOVY-7478:
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Do you mean  org.codehaus.groovy.runtime.InvokerHelper? Because InvokerHelper does afaik not cache anything... Or do you mean a different class?

> Ability to Cache Patterns
> -------------------------
>
>                 Key: GROOVY-7478
>                 URL: https://issues.apache.org/jira/browse/GROOVY-7478
>             Project: Groovy
>          Issue Type: New Feature
>          Components: class generator
>    Affects Versions: 2.3.9, 2.4.3
>            Reporter: Patrick Julien
>            Priority: Minor
>
> It seems {{InvokeHelper}} cannot cache the results of {{Pattern#compile}} at all when running embedded Groovy scripts.
> When this is combined with regular expressions and a somewhat large number scripts, there is a very large hit to performance when these scripts need to be constantly run.
> Using Java 8u40. and close to 10k scripts, the same 10k scripts are properly cached and reused but {{Pattern}} objects are constantly re-compiled.
> I am using a {{ConcurrentHashMap}} from a custom implementation of {{InvokeHelper}} at the moment to workaround the problem but having a supported way of controlling this behavior would be welcomed.



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