An SCA composite is used to assemble components in logical groupings. It is the basic unit of composition within an SCA System. An SCA Composite contains a set of Components, Services, References and the Wires that interconnect them. Composites are component implementations in higher-level composites in other words composites can have components that are implemented by composites.
A composite has the following normative characteristics:
- It defines a boundary for Component visibility. Components may not be directly referenced outside of the composite that contains them.
- It can be used as a unit of deployment. Composites are used to contribute business services to an SCA system.
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