Allow fields to be set directly from a bsh scriptlet
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Key: OFBIZ-2831
URL: https://issues.apache.org/jira/browse/OFBIZ-2831
Project: OFBiz
Issue Type: Improvement
Components: framework
Affects Versions: SVN trunk
Reporter: Bob Morley
We have made an improvement to the SetField class in Screen, Field, Menu, and
Tree. You used to do something like this --
<set field="name" value="${bsh:org.ofbiz.Foo.Bar()}" type="Integer" />
A disadvantage of this technique is that the value is handled by a
FlexibleStringExpander (which will always return a string). Implementation of
this expander will notice the "bsh" and parse out the scriptlet, interpret and
get an Object back, then convert the Object to a String. The caller (say
ModelScreenAction) will then take this Object and do a simple type conversion
(on ObjectType) to the desired type for the user. This works fine if the
function can return something that can convert to a String and then back to the
desired type. When the return result can not (say a List) then you are pooched.
My proposed solution is make the grammar more clear in the xml for the Model
Action by explicitly stating that we will be providing a bsh scriptlet.
Moreover, since we directly call for the Object we can directly convert to the
desired object which will work properly for non-string serializable objects
like lists and maps.
<set field="name" from-bsh="org.ofbiz.Foo.Bar()" type="Integer" />
The implementation does treat the scriptlet as a FlexibleString so it will
convert inside for labels resolution and the like.
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