To create a Mediator in an existing composite application:
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Open the composite application to which you are adding a Mediator in the SOA Composite Editor.
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Drag and drop a Mediator from the Components window (shown in Figure 19-2) to the Components section of the editor.
Alternatively, right-click a blank area in the Components section of the editor. Select Insert > Mediator from the context menu that appears.
Tip:
The Components window is to the right of the SOA Composite Editor.
Figure 19-2 Components Window with a Mediator Service Component
Description of "Figure 19-2 Components Window with a Mediator Service Component"The Create Mediator dialog appears.
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Configure the Mediator interface, as described in Configuring the Mediator Interface Definition.
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Define routing rules for the Mediator, as described in Creating Oracle Mediator Routing Rules.