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CIS 644 Tues. Nov. 30, 1999 W15A … patterns. schedule: 30: patterns 2: review for exam 7: design proj 9: design proj email exam2. patterns: Coad … mostly PD patterns Gamma… mostly implementation patterns. Coad#1: collection - worker
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CIS 644 Tues. Nov. 30, 1999 W15A … patterns
schedule: 30: patterns 2: review for exam 7: design proj 9: design proj email exam2
patterns: Coad … mostly PD patterns Gamma… mostly implementation patterns
Coad#1: collection - worker actually: worker - users - collection as: clerk - customers - videos
Coad#3: Participant- Transaction Coad#5: SpecificItem - Transaction as: Customer - Rental Video - Rental
and Coad#6: Transaction - TransLineItem as: Rental <>- RentalLineItem
Coad#7: Transaction - SubsequentTrans as: GrainReservation - TruckDelevery
Coad#14: Container - Contents as: Flight <>- Reservation
Coad#18: CompoundPart - Part same as: Composite - Component where: Component = PrimitiveComponent | Composite
Coad#20: Plan - Step (CIS project) as Budget <>- BudgetPeriod
Coad#26: Proxy - SpecificItem as : CachedItem - Item as: LocalItem - ServerItem as: EditPage - SourcePage
Coad#27: Publisher - Subscriber same as: Obervable - Observer as: PD_Item - Item_View
Java data structures: [Bailey1999] common "behavior" patterns: public interface Enumeration { boolean hasMoreElements(); Object nextElement(); } public interface Iterator extends Enumeration { … void reset(); Object value(); }
Java examples for three other "behavior" patterns: Terrazas ..visitor pattern Liu ........ command pattern Zhang ... state pattern
Coad chap 4: adaptor patterns: as: multiple adaptors multiple thread access
diagrams for other Gamma patterns: http: //ksi.cpsc.ucalgary.ca/~kremer/patterns/
Creational Patterns Abstract Factory Builder Factory Method Prototype x Singleton
Structural Patterns x Adapter Bridge x Composite Decorator Facade Flyweight x Proxy
Behavioural Patterns Chain of Responsibility x Command Interpreter x Iterator Mediator Memento x Observer x State Strategy Template Method x Visitor
reusable items: patterns: packages: interface, classes components: frameworks: software tools: