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From "Dmitri Blinov (JIRA)" <j...@apache.org>
Subject [jira] [Created] (JEXL-222) The ability to declare indexed property getter/setter in customised JexlArithmetic implementation
Date Sun, 12 Mar 2017 08:25:04 GMT
Dmitri Blinov created JEXL-222:
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             Summary: The ability to declare indexed property getter/setter in customised
JexlArithmetic implementation
                 Key: JEXL-222
                 URL: https://issues.apache.org/jira/browse/JEXL-222
             Project: Commons JEXL
          Issue Type: Improvement
    Affects Versions: 3.0
            Reporter: Dmitri Blinov
            Priority: Minor


At the moment we have the ability to declare a specific getter/setter method in customized
JexlArithmetic class that will be used by Jexl engine when engine tries to get access to a
property of some object. This is great extension point of the Jexl but I have come to a situation
where I need the same technics to be applied to indexed properties. For example I'm scripting
org.w3c.dom.Element object by setting its attributes via its {code}Element.setAttribute(java.lang.String
name, java.lang.String value) {code} method. In Jexl I use standard indexed property access
syntax like the following: {code} node.attribute.id = "12345"; {code} The problem lies with
the last argument of the setAttribute method which is of String class. And for Jexl standard
indexed property setter to work I should always remember that in script I need to cast specified
property value to a string, which is error-prone and lacks, in my understanding, scripting
easiness. I see the solution as to introduce custom indexed property setter in more generalized
form, accepting Object type as a value so it could cast a value to String before calling {{Element.setAttribute}}



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