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what is interface controller ?

How to create INTERFACE CONTROLLER ans what is the use of interface controller.

-I never see an option to create INTERFACE CONTROLLER

-But in standard components i have seen INTERFACE CONTROLLER how he had created

Some where i seen the purpose of INTERFACE CONTROLLER is to use the data one component in another component....but for that we have COMPONENT CONTROLLER, Then what is exact requirement for INTERFACE CONTROLLER.

Plese very helpful to many people if anyone clear it.

Thanks In Advance

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1 Answer

  • Posted on Jul 01, 2012 at 08:16 PM

    Hello Shiva

    No we do not create an interface controller, like a component controller an interface controller is only available once for each UI Component.

    A component( Embedded ) can publish context nodes, Events, and Interface views (Windows) to an Embedding component

    Publishing the context nodes allows users to access UI Component data in read/write Mode.

    Publishing a window as an interface view enables the Embedding Component to use the visual parts of an embedded component & the UI Component events enable other UI Components to be informed about status change

    These elements (context nodes, events and interface views ) are provided declaratively by the Interface controller which facilitates access to a UI component using a usage object.

    Consider the Example of publishing the context node of an embedded componet (say component X1) in the embedding component say X2

    Go to the runtime repository of X1

    Select 'context' under the interface controller

    right click on it

    Add your context node (say BUILEMP)

    Save

    Now we'll see how we can access BUILEMP in Component X2

    Go to the runtime repository in component X2

    select .component usage'.

    right click on it

    Add Component usage ( Used component X1)

    Interface view = Main window

    Check & Save.

    Binding

    Now in the component controller class of component X2

    Implement "WD_USAGE_INTIALIZE" Method

    Case iv_usage-> usage_name

    WHEN 'X1'

    iv_usage-> bind_context_node

    exporting

    iv_controller_type = cl_bsp_wd_controller=> co_type_component

    iv_target_node_name = 'BUILEMP'

    iv_node_2_bind = 'BUILEMP' .

    endcase.

    Hope this Helps

    Regards

    Sanguine

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    • Former Member

      Thanks for reply...

      What ever you explained example We can do this with help of component controller without using interface controller,Then what is scenario exactly when interface controller should use...And Is there any difference between interface controller and component controller....

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