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- Observer_pattern abstract "The observer pattern is a software design pattern in which an object, called the subject, maintains a list of its dependents, called observers, and notifies them automatically of any state changes, usually by calling one of their methods. It is mainly used to implement distributed event handling systems. The Observer pattern is also a key part in the familiar model–view–controller (MVC) architectural pattern. The observer pattern is implemented in numerous programming libraries and systems, including almost all GUI toolkits.The observer pattern can cause memory leaks, known as the lapsed listener problem, because in basic implementation it requires both explicit registration and explicit deregistration, as in the dispose pattern, because the subject holds strong references to the observers, keeping them alive. This can be prevented by the subject holding weak references to the observers.Related patterns: Publish–subscribe pattern, mediator, singleton.".
- Observer_pattern thumbnail Observer.svg?width=300.
- Observer_pattern wikiPageExternalLink Observable.html.
- Observer_pattern wikiPageExternalLink Observer.html.
- Observer_pattern wikiPageID "164863".
- Observer_pattern wikiPageLength "4406".
- Observer_pattern wikiPageOutDegree "24".
- Observer_pattern wikiPageRevisionID "660999387".
- Observer_pattern wikiPageWikiLink Category:Articles_with_example_Java_code.
- Observer_pattern wikiPageWikiLink Category:Articles_with_example_Python_code.
- Observer_pattern wikiPageWikiLink Category:Software_design_patterns.
- Observer_pattern wikiPageWikiLink Client–server_model.
- Observer_pattern wikiPageWikiLink Design_pattern_(computer_science).
- Observer_pattern wikiPageWikiLink Dispose_pattern.
- Observer_pattern wikiPageWikiLink Event_(computing).
- Observer_pattern wikiPageWikiLink Event_handling.
- Observer_pattern wikiPageWikiLink GUI.
- Observer_pattern wikiPageWikiLink Graphical_user_interface.
- Observer_pattern wikiPageWikiLink Implicit_invocation.
- Observer_pattern wikiPageWikiLink Java_(programming_language).
- Observer_pattern wikiPageWikiLink Lapsed_listener_problem.
- Observer_pattern wikiPageWikiLink Library_(computing).
- Observer_pattern wikiPageWikiLink Mediator_pattern.
- Observer_pattern wikiPageWikiLink Memory_leak.
- Observer_pattern wikiPageWikiLink Method_(computer_programming).
- Observer_pattern wikiPageWikiLink Method_(computer_science).
- Observer_pattern wikiPageWikiLink Model–view–controller.
- Observer_pattern wikiPageWikiLink Object_(computer_science).
- Observer_pattern wikiPageWikiLink Programming_library.
- Observer_pattern wikiPageWikiLink Publish–subscribe_pattern.
- Observer_pattern wikiPageWikiLink Python_(programming_language).
- Observer_pattern wikiPageWikiLink Singleton_pattern.
- Observer_pattern wikiPageWikiLink Software_design_pattern.
- Observer_pattern wikiPageWikiLink Weak_reference.
- Observer_pattern wikiPageWikiLink File:Observer.svg.
- Observer_pattern wikiPageWikiLinkText "Monitoring".
- Observer_pattern wikiPageWikiLinkText "Observer Design Pattern".
- Observer_pattern wikiPageWikiLinkText "Observer Pattern".
- Observer_pattern wikiPageWikiLinkText "Observer pattern".
- Observer_pattern wikiPageWikiLinkText "Observer".
- Observer_pattern wikiPageWikiLinkText "listener interface".
- Observer_pattern wikiPageWikiLinkText "listener".
- Observer_pattern wikiPageWikiLinkText "listeners".
- Observer_pattern wikiPageWikiLinkText "observer pattern".
- Observer_pattern wikiPageWikiLinkText "publish/subscribe".
- Observer_pattern wikiPageWikiLinkText "signals".
- Observer_pattern hasPhotoCollection Observer_pattern.
- Observer_pattern wikiPageUsesTemplate Template:Design_Patterns_Patterns.
- Observer_pattern wikiPageUsesTemplate Template:Reflist.
- Observer_pattern wikiPageUsesTemplate Template:Wikibooks-inline.
- Observer_pattern subject Category:Articles_with_example_Java_code.
- Observer_pattern subject Category:Articles_with_example_Python_code.
- Observer_pattern subject Category:Software_design_patterns.
- Observer_pattern hypernym Pattern.
- Observer_pattern type Article.
- Observer_pattern type Disease.
- Observer_pattern type Article.
- Observer_pattern type Pattern.
- Observer_pattern comment "The observer pattern is a software design pattern in which an object, called the subject, maintains a list of its dependents, called observers, and notifies them automatically of any state changes, usually by calling one of their methods. It is mainly used to implement distributed event handling systems. The Observer pattern is also a key part in the familiar model–view–controller (MVC) architectural pattern.".
- Observer_pattern label "Observer pattern".
- Observer_pattern sameAs المراقب_(نموذج_تصميم).
- Observer_pattern sameAs Наблюдател_(шаблон).
- Observer_pattern sameAs Patró_observador.
- Observer_pattern sameAs Observer.
- Observer_pattern sameAs Beobachter_(Entwurfsmuster).
- Observer_pattern sameAs Observer_(patrón_de_diseño).
- Observer_pattern sameAs Observateur_(patron_de_conception).
- Observer_pattern sameAs Observer_(patrón_de_deseño).
- Observer_pattern sameAs תבנית_צופה.
- Observer_pattern sameAs Megfigyelő_programtervezési_minta.
- Observer_pattern sameAs Observer_pattern.
- Observer_pattern sameAs Observer_パターン.
- Observer_pattern sameAs 옵서버_패턴.
- Observer_pattern sameAs Observer_(ontwerppatroon).
- Observer_pattern sameAs Obserwator_(wzorzec_projektowy).
- Observer_pattern sameAs Observer.
- Observer_pattern sameAs m.015yvb.
- Observer_pattern sameAs Наблюдатель_(шаблон_проектирования).
- Observer_pattern sameAs อ็อบเซิร์ฟเวอร์แพตเทิร์น.
- Observer_pattern sameAs Спостерігач_(шаблон_проектування).
- Observer_pattern sameAs Q818562.
- Observer_pattern sameAs Q818562.
- Observer_pattern sameAs 观察者模式.
- Observer_pattern wasDerivedFrom Observer_pattern?oldid=660999387.
- Observer_pattern depiction Observer.svg.
- Observer_pattern isPrimaryTopicOf Observer_pattern.