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From "Jasper Rosenberg (JIRA)" <>
Subject [jira] [Created] (WW-4203) Allow disabling xwork creating null objects on a property level
Date Tue, 17 Sep 2013 19:54:53 GMT
Jasper Rosenberg created WW-4203:

             Summary: Allow disabling xwork creating null objects on a property level
                 Key: WW-4203
             Project: Struts 2
          Issue Type: Improvement
          Components: Core Interceptors
    Affects Versions:,
            Reporter: Jasper Rosenberg
            Priority: Minor

Currently, the ParametersInterceptor sets: ReflectionContextState.setCreatingNullObjects(contextMap,

This is great for parameters like "" since it will create the Person object
for you and then set the name.  

However, sometimes you have a converter for a property that will set it as a whole, and you
want to make sure that an empty object is never created.  For example, "person=6", where the
Person is set by looking it up by id.  Currently, if someone messed with the url and made
it "person[x]=6", XWork would end up creating an empty Person object.  (Something along these
lines happened to us and I was looking for a clean way to tell XWork to not allow it)

Perhaps the TypeConversion annotation could be extended to support this as an additional flag.

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