The UML Profile for Framework Architectures
B.14 Chain of Responsibility (COR) pattern tags
Figure B.14 shows the static structure of the Chain-of-Responsibility (COR) pattern (Gamma et al. 1995) annotated with UML-F tags. Table B.14 summarizes the COR pattern UML-F tags. COR corresponds to the COR framework construction principle, which is a recursive combination of template and hook methods in which the these two methods are unified into a single method. A list (chain) of objects that implement this method is composed, and a request is forwarded through this list to be handled by each object in the chain.
Figure B.14. Structure of the COR pattern annotated with UML-F
| Tags | COR Client , COR Handler , COR ConcreteHandler , COR handleRequest , COR handleRequest , COR successor
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| Apply to | As shown in Fig. B.14: Class ( COR Client , COR Handler , COR ConcreteHandler ) Method ( COR-handleRequest , COR-handleRequest ) Association ( COR-successor ) Interface ( COR-Client ) |
| Type | String. |
| Expansion | not applicable |