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Samenvatting Advanced Software Development II
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Advanced Software Development II
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1Samenvatting ASDII
1. DP: Simple Factory....................................................................................................................................2
2. DP: Abstract factory..................................................................................................................................3
3. DP: Iterator...............................................................................................................................................4
4. DP: Composite..........................................................................................................................................6
5. DP: Builder................................................................................................................................................8
6. DP: Command.........................................................................................................................................10
7. DP: Adapter.............................................................................................................................................12
8. DP: Template method.............................................................................................................................14
9. DP: Proxy.................................................................................................................................................16
10. DP: Singleton.........................................................................................................................................17
11. JAVA: Multithreading............................................................................................................................18
DP’s: weten welk DP
Kleine delen van DP’s implementeren
NIET: iterator in boomstructuur (dus iterator composite)
Wel het ontwerp
Multithreading:
Kleine stukken code aanvullen
Skip alle exceptions
Skip worker, task, service, daemon threads, parallel streams
, 2
1.DP: Simple Factory
Wat?
Basically een interface voor het creëren van objecten. Het laat de subklasse beslissen welke
klasse er geïnstantieerd wordt.
De ‘fabriek’ waar objecten gemaakt worden, enkel dit deel v/d code refereert naar de concrete
klasses (in dit vb naar de pizza klasses)
UML
Voorbeeld pizzeria
Code om een pizza (pepperoni, 4kazen, …) te maken verplaatsen naar een klasse die enkel dient
voor het instantiëren van pizza’s: de factory.
De factory kent de concrete producten (CheesePizza etc)
In de factory doet ge dan zoiets van ne switch waar ge adhv uw type (string) een nieuwe pizza
maakt en hem retourneert
In de pizzastore maakt ge dan gwn uw factory en doet ge factory.createPizza(“pepperoni”) en ge
krijgt een Pizza-object weer waar ge dan uw .prepare() etc op kunt doen
, 3
2.DP: Abstract factory
Wat?
Een interface voor de vervaardiging van reeksen gerelateerde of afhankelijke objecten zonder de
concrete klasse te specificeren
UML
Dus basically hangt het concrete product af v/d factory
Dus als ge product A zegt en factory 1 dan gaat hij productA1 creëren
o Product A factory 2 productA2
& de client weet dus gwn de abstracte klasse
Voorbeeld pizzeria
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