Strategies for Loose Coupling in Large Java Desktop Applications

Transcription

1 Strategies for Loose Coupling in Large Java Desktop Applications Geertjan Wielenga Zoran Sevarac Marjan Šterk Sadi El Assadi Boris Pran

2 Java Desktop: Swing / JavaFX What are typical problems with large Java desktop applications and how to solve them? How to reuse as much as possible from existing solutions and not reinvent the wheel? How to create applications that are solid and maintainable over many years?

3 Agenda Background Strategies Demos & Discussion

4 NetBeans: What Is It Really? NetBeans IDE NetBeans Community NetBeans Platform

5 December 1997

6 December 2011

7 NetBeans Platform Overview > Framework for developing large Java desktop applications. > Provides > Runtime container. > APIs solving typical desktop problems.

8 NetBeans Platform

9 Why Use the NetBeans Platform? Pre-defined generic features and solutions. Code generators for custom features. Less boilerplate code, less cycles. Consistency of user interface. Modularity & loose coupling.

10 NetBeans Platform Features Pluggable: > menubar > toolbar > window system/docking framework > Options settings > JavaHelp > custom features Update Mechanism Modularity Generators for launchers, ZIP distributions, installers, and JNLP.

11 Examples Boeing Northrop Grumman South African Defence Force Swedish Defence Force Banks Bioinformatics Mining...

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27 Three Usages in (and around) Croatia Amphinicy Technologies Gaea+ OpenMQAdmin Neuroph Studio

28 Common Basis App Module 6 App Module 5 App Module 4 App Module 3 App Module 2 App Module 1 Runtime container handles lifecycle. APIs provide extension API Modules/Plugins points & utilities. Runtime Container

29 Strategies for Loose Coupling Modularity Break monolithic application into featues Service Registry Decouple tools from user interface Context Sensitivity Decouple actions from user interface

30 Migrating to NetBeans Platform Keep all algorithms, processors, etc. Port everything to modules. Wrap JPanels in TopComponents. Wrap business objects in Nodes. Move to BeanTreeView from Jtree, etc. Integrate NetBeans RCP features. Leverage/reuse as much as you can. Focus on domain, not infrastructure. Porting is a process.

31 Technical Concepts Module == a collection of Java packages that defines a feature Lookup for Loose Coupling Central Registry TopComponent Cookies/Capabilities Node Explorer Views Actions: Global/Context Sensitive

32 Summary NetBeans Platform: > Framework simplifying the development of modular, scalable, Swing applications. > Free & open source. > Stable & very extensive. > Used internationally in many companies.

33 Using NetBeans In Any Way At All? > We want to hear from you. > We want to help you (for free). > We want to promote any work you do (for free).

34 platform.netbeans.org/tutorials

35 Course Basic Course > Cover all the basic NetBeans APIs. > A lot of hands on work & coding. > One lecture/one workshop pattern. > Very practically oriented, free book. Porting Workshop > Brief overview of NetBeans APIs. > Step by step guided migration of your app. > Simple prototype ready for demo. 3 or 5 days, X number of engineers nbplatform-certified-training/

36 Resources NetBeansDeveloperFAQ nbm-porting-basic.html nbplatform-certified-training/

37 Using NetBeans In Any Way At All? > We want to hear from you. > We want to help you (for free). > We want to promote any work you do (for free).

38 Questions & Answers