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When do subcontroller classes die?

I have a question concerning the lifetime of controller class instances.

I have a view called root.bsp, where I create one out of two subcontrollers depending on a variable.

<% IF controller->myVar = 1.%>
    <bsp:call url="" comp_id = "c1" />
<% ELSE. %>
    <bsp:call url="" comp_id = "c2" />
<% ENDIF.%> has a controller class called CL_1.

At first, myVar is 1, so c1 is called. Now, in CL_1 I set myVar to 2, so in the next request, c2 will be called. I would assume that the instance of CL_1 now will be destroyed because it is not used anymore. However, when I call later, CL_1 will still have the attribute values from the previous time.

Why is the controller class instance not removed after the corresponding controller/view is not shown anymore?

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3 Answers

  • Best Answer
    Posted on Oct 17, 2005 at 08:09 AM

    This has nothing to do whether a controller is used (shown, for the view) or not, but simply if the application is stateless or stateful.

    Are you using a stateful application?

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  • Posted on Oct 17, 2005 at 08:15 AM

    Hi Daniel

    Since your application is stateless i'd assume your subcontroller dies with page change (Check Controller method set_lifetime).

    Did u try give both controllers the same comp_id? They may overwrite each other this way...



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  • Posted on Oct 19, 2005 at 11:10 AM

    Hi Daniel,

    have a look at the methods of class CL_BSP_CONTROLLER2, there's a method called delete_controller (that's the asnwer to your how-question). You should know by yourself when you want to call it. I don't know the circumstances.



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