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https://issues.apache.org/jira/browse/JEXL-222?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Henri Biestro resolved JEXL-222.
--------------------------------
Resolution: Fixed
Fix Version/s: 3.1
The current overload code already allows this. To help ensure that the overload
is applied to the desired containers, IndexedType.IndexedContainer exposes new
methods exposing the name & class.
One can thus implement the following in a derived JexlArithmetic:
{code}
... public Object propertySet(IndexedType.IndexedContainer map, String
key, Integer value) {
if (map.getContainerClass().equals(PropertyContainer.class)
&& map.getContainerName().equals("property")) {
try {
map.set(key, value.toString());
} catch (Exception xany) {
throw new JexlException.Operator(null, key + "." +
value.toString(), xany);
}
return null;
}
return JexlEngine.TRY_FAILED;
}
...
{code}
src/main/java/org/apache/commons/jexl3/internal/introspection/IndexedType.java
src/test/java/org/apache/commons/jexl3/PropertyAccessTest.java
Committed revision 1786904.
> 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
> Assignee: Henri Biestro
> Priority: Minor
> Fix For: 3.1
>
>
> 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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