Specifying the Call Sequence of Components 

You define the navigation from an outer, embedding Web Dynpro component to an inner embedded component by defining plugs for the interface views of the components. With this you specify the order in which the components are called in a component hierarchy at runtime.

If you define the inbound plug of an interface view as a startup plug, it can be referenced by a Web Dynpro application. There is also the second inbound plug type, Standard: With this type, a component can be triggered by an outer component as a subsequent component.

Interface views also have an outbound plug. An outbound plug of the type Standard makes a component the start component. An outbound plug of the type Exit is required for programming the exit of the Web Dynpro application by the current component.

Prerequisites

Before you can define plugs for the interface views of the components, you must have created all the components.

Procedure

To create the two plug types, inbound and outbound, proceed as follows:

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       1.      In the Web Dynpro Explorer view, choose the context menu entry Edit for the interface view.

       2.      Choose New to create a new plug of the specified category.

No type conversion takes place when you call event handlers, so the event parameters and the event handler parameters must be of the same type. For the startup plug, this means that you can only use Java primitive types or equivalent Dictionary types, for which the locale-independent standard conversion of the Java primitive types is sufficient. An implicit type conversion then takes place, from String to the declared Java primitive type: int, char, boolean, short, long, float, double, String, Object.

                            a.      When you define an inbound plug, you also specify whether you require an event handler and select one if necessary. If the Startup flag is not set, a plug of the type Standard is defined.

                            b.      In the outbound plug dialog box, you must set the Exit Plug flag. If this flag is not set, a plug of the type Standard is created.

You can pass parameters along with both plug types.

       3.      Close the wizard by choosing Finish and then choose Save all Metadata to save your changes.