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Strategies for Loose Coupling in Large Java Desktop Applications
Geertjan Wielenga
geertjan.wielenga@oracle.com blogs.oracle.com/geertjan @geertjanw
Agenda
- Background
- Strategies
- Demos & Discussion
Strategies for Loose Coupling in Large Java Desktop Applications - - PowerPoint PPT Presentation
Strategies for Loose Coupling in Large Java Desktop Applications - - PowerPoint PPT Presentation
Strategies for Loose Coupling in Large Java Desktop Applications Geertjan Wielenga geertjan.wielenga@oracle.com blogs.oracle.com/geertjan @geertjanw Agenda Background Strategies Demos & Discussion NetBeans: What Is It?
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NetBeans: What Is It?
- NetBeans IDE
- NetBeans Platform
- NetBeans Community
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December 1997
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December 2011
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Using NetBeans In Any Way At All?
- geertjan.wielenga@oracle.com
> We want to hear from you. > We want to help you (for free). > We want to promote any work you do (for free).
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NetBeans Platform
- Overview
> Framework for developing large Java desktop
applications.
> Provides
> Runtime container. > APIs solving typical desktop problems.
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NetBeans Platform
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Why Use the NetBeans Platform?
- Pre-defined generic features.
- Code generators for custom features.
- Less boilerplate code, less cycles.
- Consistency of user interface.
- Modularity & loose coupling.
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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.
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Examples
http://platform.netbeans.org/screenshots.html
- Boeing
- Northrop Grumman
- South African Defence Force
- Swedish Defence Force
- Banks
- Bioinformatics
- Mining
- ...
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Examples
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Examples
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Examples
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Examples
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Examples
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http://agrosense.nl
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Examples
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Examples
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Examples
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Common Basis
Runtime Container API Modules/Plugins
A p p M
- d
u l e 1 A p p M
- d
u l e 4 A p p M
- d
u l e 5 A p p M
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u l e 6 A p p M
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u l e 2 A p p M
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u l e 3
Runtime container handles lifecycle. APIs provide extension points & utilities.
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Strategies for Loose Coupling
- Service Registry
– Decouple tools from user interface
- Context Sensitivity
– Decouple actions from user interface
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Air Traffic Control Requirements
- Create an ATC system for multiple different airports.
- Must be able to view & manage runways.
- Must be able to view engineers per runway.
- Moscow Airport
> Runways: “Pushkin”, “Tolstoy”, “Dostoyevksy” > Must be able to reallocate engineers
- St. Petersburg Airport
> Runway: “Nabokov”
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Demo
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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.
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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
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Summary
- NetBeans Platform:
> Framework simplifying the development of modular, scalable,
Swing applications.
> Free & open source. > Stable & very extensive. > Used internationally in many companies.
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Using NetBeans In Any Way At All?
- geertjan.wielenga@oracle.com
> We want to hear from you. > We want to help you (for free). > We want to promote any work you do (for free).
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platform.netbeans.org/tutorials
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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
- http://edu.netbeans.org/courses/
nbplatform-certified-training/
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Resources
- http://wiki.netbeans.org/
NetBeansDeveloperFAQ
- http://platform.netbeans.org/tutorials/
nbm-porting-basic.html
- http://edu.netbeans.org/courses/
nbplatform-certified-training/
- dev@platform.netbeans.org
- http://platform.netbeans.org
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Using NetBeans In Any Way At All?
- geertjan.wielenga@oracle.com
> We want to hear from you. > We want to help you (for free). > We want to promote any work you do (for free).
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