I haven't used the Scope interceptor, so I may not be 100% correct, but
the following answers are based on my interpretation of the documentation:
j alex wrote:
Hi,
I need help regarding correct usage of Scope interceptor
(http://struts.apache.org/2.0.9/docs/scope-interceptor.html)
Before going into details i had couple of qns :
#1. Is this usable we have multiple actions sharing the same model
object ? - i.e each page of the app posts to a different Action . All
of these Actions extend from a BaseAction in which we've the get() and
set() for the model.
Yes, provided each action is configured with a scope interceptor with
the 'key' parameter set to the same value.
Assumptions (please correct me if i'm wrong here) :
#2. If yes to #1, i guess we **must** provide a "key" under which to
save the object
Yes.
#3. The Action class need not implement any special interfaces/extend
any classes -- right now, it extends ActionSupport.
Correct.
The struts.xml is as follows :
<action name="page1" class="com.mysite.Action1" method="input">
<interceptor-ref name="defaultStack">
<param name="validation.validateAnnotatedMethodOnly">true</param>
<param name="scope.key">modelObj</param>
<param name="scope.session">modelObj</param>
<param name="scope.autoCreateSession">true</param>
</interceptor-ref>
<result name="input">page-i1.jsp</result>
<result>page-o1.jsp</result>
</action>
<action name="page2" class="com.mysite.Action2" method="input">
<interceptor-ref name="defaultStack">
<param name="validation.validateAnnotatedMethodOnly">true</param>
<param name="scope.key">modelObj</param>
<param name="scope.session">modelObj</param>
<param name="scope.autoCreateSession">true</param>
</interceptor-ref>
<result name="input">page-i2.jsp</result>
<result>page-o2.jsp</result>
</action>
The problem is that the values entered in page-i1.jsp (posting to
page2 Action) are not showing up in page-i2.jsp -- BUT, those were
showing up before the interceptor was added.
Do you have the necessary getModelObj() / setModelObj() methods on
Action1 and Action2 respectively? Have you added debug logging to
determine if those methods are called at the appropriate points?
L.
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