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https://issues.apache.org/jira/browse/JEXL-243?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16226276#comment-16226276
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Dmitri Blinov edited comment on JEXL-243 at 10/31/17 5:56 AM:
--------------------------------------------------------------
Well, this basically works, the only thing is what if I have in one framework
two different types of scripts, say scripts with side effects and scripts
without side effects (or better to name them getters and setters). Those types
of scripts are supposed to use a single Jexl engine instance. It would be more
practical to be able to specify desired features right to
JexlEngine.createScript() method. Maybe JexlEngine.createExpression() should
get such an overload too, but maybe it's even better, not to speak of backward
compatibility now, to have the only one JexlEngine.createScript() which could
create both "scripts" and "expressions" by simply specifying "right" feature
sets in each case.
was (Author: dmitri_blinov):
Well, this is basically works, the only thing is what if I have in one
framework two different types of scripts, say scripts with side effects and
scripts without side effects (or better to name them getters and setters).
Those types of scripts are supposed to use a single Jexl engine instance. It
would be more practical to be able to specify desired features right to
JexlEngine.createScript() method. Maybe JexlEngine.createExpression() should
get such an overload too, but maybe it's even better, not to speak of backward
compatibility now, to have the only one JexlEngine.createScript() which could
create both "scripts" and "expressions" by simply specifying "right" feature
sets in each case.
> Allow restricting available features in Script/Expressions
> ----------------------------------------------------------
>
> Key: JEXL-243
> URL: https://issues.apache.org/jira/browse/JEXL-243
> Project: Commons JEXL
> Issue Type: Improvement
> Affects Versions: 3.1
> Reporter: Henri Biestro
> Assignee: Henri Biestro
> Fix For: 3.2
>
>
> Restrict features related to potential dangers/difficulties one may encounter
> whilst scripting;
> Reserved Names: a set of reserved variable names that can not be used as
> local variable (or parameter) names
> Registers: boolean property allowing parsing of register syntax (#number)
> Global Side Effect : boolean property controlling assigning/modifying values
> on global variables
> Side Effect: boolean property controlling side effects assigning/modifying
> values on any variable
> New Instance: boolean property controlling creating new instances through
> new(...) or using class as functor
> Loops: boolean property controlling usage of loop constructs (while(true),
> for(...))
> Lambda: boolean property controlling usage of script function declarations
>
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