The FAMOOS Object - Oriented Reengineering Handbook

insert() abstract delete() abstract lookup() abstract forall() HashSet ... ListSet ... Set impl insert() delete() lookup() forall() deleteAll() union() constructor() changeImpl() SetImpl abstract insert() abstract delete() abstract lookup() abstract forall() abstract changeImpl() constructor (type subtypeSetImpl) { impl = new type ; }insert() abstract delete() abstract lookup() abstract forall() abstract changeImpl() constructor (type subtypeSetImpl) { impl = new type ; } changeImpl (type subtypeSetImpl) { impl.changeImpl(type) ; } HashSet ... changeImpl() {...} ListSet ... changeImpl() {...} 3c 3b Figure 2.52: Application of Design Pattern Operator Bridge (II) Set abstract insert() abstract delete() abstract lookup() abstract forall() deleteAll() union() HashSet hashtable htbl insert() {...} delete() {...} lookup() {...} forall() {...} ListSet list lst insert() {...} delete() {...} lookup() {...} forall() {...} 3b AbstractSet SetImpl impl insert() {...} delete() {...} lookup() {...} forall() {...} deleteAll() union() 3c 3aSet SetImpl impl insert() {...} delete() {...} lookup() {...} forall() {...} deleteAll() union() 3c 3a impl.insert(...); ... ... Figure 2.53: Application of a Bridge with refactorings (I)