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From "Fyodor Kupolov (JIRA)" <>
Subject [jira] Commented: (JEXL-3) [JEXL] Static method resolution and changes to context
Date Mon, 07 May 2007 07:29:16 GMT


Fyodor Kupolov commented on JEXL-3:

Scriptella open source ETL tool actively use JEXL as an expression engine. Thank you for such
a great library, but I see one critical limitation of JEXL - it's impossible to instantiate
objects and invoke static methods without object instance.

Could you please tell me when 2.0 is going to be released?

> [JEXL] Static method resolution and changes to context
> ------------------------------------------------------
>                 Key: JEXL-3
>                 URL:
>             Project: Commons JEXL
>          Issue Type: Bug
>    Affects Versions: 1.0
>         Environment: Operating System: other
> Platform: Other
>            Reporter: dion gillard
>             Fix For: 2.0
>         Attachments:
> From: Guido Anzuoni <>
> Here I will try to explain may changes to see if you agree to include in the trunk.
> 1. UberspectImpl
> I need to include static methods resolution in expressions (e.g.
> System.currentTimeMillis()). I patched the class to allow it.
> 2. JexlContext
> Resolving vars using a Map is not enough flexible for my needs. I have modified
> it to have a single method
> public Object resolveVariable(String var);
> This allows me for better flexibility in the resolution process.
> I have implemented a JextContext based on a java.util.Map, an extensible
> JexlContext and a delegating JexlContext.
> The extensible resolver is abstract and has a "parent" context to which
> delegates in the case local resolution failes.
> Delegating implementation extends the extensible context and uses another
> JexlContext for local resolution.
> More, I have removed any reference to JexlContex.getVars() in the code.
> If you wish I can send the modified classes to better evaluate my changes.

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