Why would you use the Mediator component in a Service Component Architecture (SCA) application Instead of using Oracle Service Bus?

Question

Options

• AOracle Service Bus runs out side of a SCA application. Therefore, the Mediator is the only choice
• BThe Mediator is much faster than Oracle Service Bus.
• CThe Mediator supports transactions, but Oracle Service Bus does not.
• DIt is always better to use Oracle service Bus Instead of the Mediator.

• A
  81% (25)
• B
  13% (4)
• C
  3% (1)
• D
  3% (1)

Explanation

Whereas Oracle Service Bus provides service virtualization and protocol transformations for an Oracle SOA Suite application containing multiple composites, Oracle Mediator is an intra- composite mediation component that is deployed within an application. * Analogous to a load balancer routing HTTP traffic, the Oracle Mediator routes data from service providers to external partners. In addition, it can subscribe to and publish business events. Using Oracle Mediator, you create routing services and rules for them. A routing service is the key component for moving a message across the enterprise service bus ?from its entry point to its exit point. The rules determine how a message instance processed by the routing service gets to its next destination. Using the rules, Oracle Mediator can perform the following actions: Route: Determines the service component (BPEL process, business rule, human task, and mediator) to which to send the messages. Validate: Provides support for validating the incoming message payload by using a schematron or Filter: If specified in the rules, applies a filter expression that specifies the contents (payload) of a message be analyzed before any service is invoked. Transformation: If specified in the rules, transforms document data from one XML schema to another, thus enabling data interchange among applications using different schemas.

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