Making Swing Fun Again

Agenda A Brief History of Desktop Java Groovy’s Improvements for Swing Grails + Swing -> Griffon Griffon’s Unique Values Q&A / Live Demo

A Brief History of Desktop Java

Groovy’s Improvements for Swing

Grails + Swing -> Griffon

Griffon’s Unique Values

Q&A / Live Demo

History of Desktop Java Java 1.0 January 1996 AWT Native Peers Subclass to Add Behavior

Java 1.0 January 1996

AWT

Native Peers

Subclass to Add Behavior

History of Desktop Java Java 1.1 February 1997 Inner and Anonymous Classes JavaBeans Events Listener Interfaces and Event Objects Properties getters/setters and BeanInfos AWT reworked with JavaBeans Lightweight Peers Swing as an External Library

Java 1.1 February 1997

Inner and Anonymous Classes

JavaBeans

Events

Listener Interfaces and Event Objects

Properties

getters/setters and BeanInfos

AWT reworked with JavaBeans

Lightweight Peers

Swing as an External Library

History of Desktop Java

History of Desktop Java Java 1.3 May 2000 HotSpot JIT JavaSound Java WebStart as External Download

Java 1.3 May 2000

HotSpot JIT

JavaSound

Java WebStart as External Download

History of Desktop Java Java 1.4 February 2002 Java WebStart Reworked Focus and Drag and Drop JSpinner and JFormattedTextField Java 1.4.2 September 2003 Windows XP Look and Feel GTK+ Look and Feel

Java 1.4 February 2002

Java WebStart

Reworked Focus and Drag and Drop

JSpinner and JFormattedTextField

Java 1.4.2 September 2003

Windows XP Look and Feel

GTK+ Look and Feel

History of Desktop Java Java 5.0 September 2004 Synth Look and Feel Ocean Theme for Metal Pack 200 Generics AutoBoxing Annotations Enumerations Varargs

Java 5.0 September 2004

Synth Look and Feel

Ocean Theme for Metal

Pack 200

Generics

AutoBoxing

Annotations

Enumerations

Varargs

History of Desktop Java Java 6.0 December 2006 SwingWorker API Scripting Language support (JSR-223) Improved Java2D Rendering Pipeline No More Grey Rectangles System Tray and Notifications Support

Java 6.0 December 2006

SwingWorker API

Scripting Language support (JSR-223)

Improved Java2D Rendering Pipeline

No More Grey Rectangles

System Tray and Notifications Support

History of Desktop Java Java 6u10 October 2008 Kernel Installer Nimbus Look and Feel Improved Java Plug-In JNLP Integration New Process Model Patch in Place Updating

Java 6u10 October 2008

Kernel Installer

Nimbus Look and Feel

Improved Java Plug-In

JNLP Integration

New Process Model

Patch in Place Updating

History of Desktop Java JavaFX Desktop 1.0 December 2008 New Node Based Graphics Engine Interop APIs for Swing New Programming Language Java Interop on par with JRuby / Jython / Rhino Should You Forget Most of the Last 8 Slides?

JavaFX Desktop 1.0 December 2008

New Node Based Graphics Engine

Interop APIs for Swing

New Programming Language

Java Interop on par with JRuby / Jython / Rhino

Should You Forget Most of the Last 8 Slides?

Groovy’s Improvements Groovy Addresses Developer Pain Points JavaBeans Events JavaBeans Properties Declarative Structure Groovy Language Features Closures Concise Syntax Meta Object Protocol

Groovy Addresses Developer Pain Points

JavaBeans Events

JavaBeans Properties

Declarative Structure

Groovy Language Features

Closures

Concise Syntax

Meta Object Protocol

Groovy’s Improvements Java Beans Event Listener Java JButton myButton = new JButton("Hello World"); myButton.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent ae) { System.out.println("Hello World"); } }); Groovy JButton myButton = new JButton("Hello World") myButton.actionPerformed = { println "Hello World" }

Java Beans Event Listener

Java JButton myButton = new JButton("Hello World"); myButton.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent ae) { System.out.println("Hello World"); } });

Groovy JButton myButton = new JButton("Hello World") myButton.actionPerformed = { println "Hello World" }

Groovy’s Improvements Properties Java String field; public String getField() { return field; } public void setField(String field) { this.field = field; } Groovy String field

Properties

Java String field; public String getField() { return field; } public void setField(String field) { this.field = field; }

Groovy String field

Groovy’s Improvements Declarative Structure def swing = new SwingBuilder() swing.frame(size:[400, 300], show:true) { borderLayout() scrollPane(constraints:CENTER) { textArea(text: bind { model.script }) } hbox(constraints:SOUTH) { hglue() button("OK", actionPerformed: controller.&okPressed) button("Cancel", actionPerformed: controller.&canceled) } }

Declarative Structure

def swing = new SwingBuilder() swing.frame(size:[400, 300], show:true) { borderLayout() scrollPane(constraints:CENTER) { textArea(text: bind { model.script }) } hbox(constraints:SOUTH) { hglue() button("OK", actionPerformed: controller.&okPressed) button("Cancel", actionPerformed: controller.&canceled) } }

Groovy’s Improvements Closures Can be cast to Interfaces Directly Usable for Single Method Interfaces (Runnable et. al.) Concise Syntax Boilerplate Code is Removed Lots of Closure Sensitive Methods Added to Core Classes Meta Object Protocol – i.e. Dynamic Language Allows Any Method to be Called on Any Object Allows Methods to be Intercepted Allows Missing Methods to be Handled Allows Magic to Happen

Closures

Can be cast to Interfaces

Directly Usable for Single Method Interfaces (Runnable et. al.)

Concise Syntax

Boilerplate Code is Removed

Lots of Closure Sensitive Methods Added to Core Classes

Meta Object Protocol – i.e. Dynamic Language

Allows Any Method to be Called on Any Object

Allows Methods to be Intercepted

Allows Missing Methods to be Handled

Allows Magic to Happen

Grails + Swing -> Griffon Grails Inspired by Rails Groovy as the Language Web as the Domain Java as the Platform Spring Custom Value Added by Framework GORM GSPs

Grails

Inspired by Rails

Groovy as the Language

Web as the Domain

Java as the Platform

Spring

Custom Value Added by Framework

GORM

GSPs

Grails + Swing -> Griffon Griffon Deeply Inspired by Grails Groovy as the Language Desktop/Rich Client as the Domain Java as the Platform Swing Custom Value Added by Framework MVC Groups Packaging

Griffon

Deeply Inspired by Grails

Groovy as the Language

Desktop/Rich Client as the Domain

Java as the Platform

Swing

Custom Value Added by Framework

MVC Groups

Packaging

Grails + Swing -> Griffon Differences Fairly Strict Runtime/CLI Separation No Spring at Runtime No J2EE Servlets , EJB, JSP, JMS

Differences

Fairly Strict Runtime/CLI Separation

No Spring at Runtime

No J2EE

Servlets , EJB, JSP, JMS

Grails + Swing -> Griffon Similarities View Scripts – JSP Pages EDT Event Loop – HTTP Request Loop Source Tree is Partitioned by Role

Similarities

View Scripts – JSP Pages

EDT Event Loop – HTTP Request Loop

Source Tree is Partitioned by Role

Griffon’s Unique Values Builders MVC Groups Application Lifecycle Pattern Build Time Packaging

Builders

MVC Groups

Application Lifecycle Pattern

Build Time Packaging

Builders MyBuilder builder = new MyBuilder() builder.parent { child(attr:value, attr2:value, id:'a') favoriteChild(arg) { spoiledGrandchild(inheritance:a) } } bequethKingdom(builder.a) Builders are Groovy Code Nesting Contexts are Closures Nodes are Method Calls Attributes and Arguments are Method Arguments

MyBuilder builder = new MyBuilder() builder.parent { child(attr:value, attr2:value, id:'a') favoriteChild(arg) { spoiledGrandchild(inheritance:a) } } bequethKingdom(builder.a)

Builders are Groovy Code

Nesting Contexts are Closures

Nodes are Method Calls

Attributes and Arguments are Method Arguments

Builders SwingBuilder One of the Original Builder Samples Re-factored as a FactoryBuilderSupport Builder SwingXBuilder First Builder for a Non-Core Widget Set JideBuilder GraphicsBuilder

SwingBuilder

One of the Original Builder Samples

Re-factored as a FactoryBuilderSupport Builder

SwingXBuilder

First Builder for a Non-Core Widget Set

JideBuilder

GraphicsBuilder

Builders UberBuilder Composites Other Builders Intercepts Calls and Dispatches to Approptiate Builder Can Prefix Nodes griffon-app/conf/Builder.groovy – root { 'groovy.swing.SwingBuilder' { controller = ['Threading', 'SupportNodes', 'Binding'] } 'griffon.app.ApplicationBuilder' { view = "*" } } jx { 'groovy.swing.SwingXBuilder' { } }

UberBuilder

Composites Other Builders

Intercepts Calls and Dispatches to Approptiate Builder

Can Prefix Nodes

griffon-app/conf/Builder.groovy – root { 'groovy.swing.SwingBuilder' { controller = ['Threading', 'SupportNodes', 'Binding'] } 'griffon.app.ApplicationBuilder' { view = "*" } } jx { 'groovy.swing.SwingXBuilder' { } }

MVC Groups The MVC Pattern is Great… But Swing Provides a Low Effort to Reward Ratio Lower the Effort Language Level Support for Data Binding Framework Level Support for MVC Triads Increase the Reward Reusability of Triads

The MVC Pattern is Great…

But Swing Provides a Low Effort to Reward Ratio

Lower the Effort

Language Level Support for Data Binding

Framework Level Support for MVC Triads

Increase the Reward

Reusability of Triads

MVC Groups – Binding JavaBeans Bound Properties protected PropertyChangeSupport pcs = new PropertyChangeSupport(this) private String myProperty; public String getMyProperty() { return myProperty; } public void setMyProperty(String myProperty) { pcs.firePropertyChange(“myProperty”, this.myProperty, this.myProperty = myProperty); } Groovy Bound Properties @Bindable String myProperty

JavaBeans Bound Properties protected PropertyChangeSupport pcs = new PropertyChangeSupport(this) private String myProperty; public String getMyProperty() { return myProperty; } public void setMyProperty(String myProperty) { pcs.firePropertyChange(“myProperty”, this.myProperty, this.myProperty = myProperty); }

Groovy Bound Properties @Bindable String myProperty

MVC Groups – View Scripts Views are Groovy Scripts No Class Declarations Looks Like Free-Form Code Compiles to .class Method Contexts are Implied No Required Swing Imports Method Meanings are Provided by the Builder

Views are Groovy Scripts

No Class Declarations

Looks Like Free-Form Code

Compiles to .class

Method Contexts are Implied

No Required Swing Imports

Method Meanings are Provided by the Builder

MVC Groups – Data Injection Methods and Fields are Injected Global Imports createMVCGroup() Method model , view , controller , builder Fields/Properties On a per-builder basis SwingBuilder provides edt , doLater , doOutside Other Builders Can Provide Their Own Methods Injection Controlled by Builder.groovy

Methods and Fields are Injected

Global Imports

createMVCGroup() Method

model , view , controller , builder Fields/Properties

On a per-builder basis

SwingBuilder provides edt , doLater , doOutside

Other Builders Can Provide Their Own Methods

Injection Controlled by Builder.groovy

Application Lifecycle Follows the JSR-296 Lifecycle stages griffon-app/lifecycle/Initialize.groovy Before Any GUI Work Good Place for Look and Feel Setup griffon-app/lifecycle/Startup.groovy After Startup MVC Groups are Initialized griffon-app/lifecycle/Ready.groovy After the EDT Calms Down griffon-app/lifecycle/Shutdown.groovy After a Shutdown is Successfully Initiated

Follows the JSR-296 Lifecycle stages

griffon-app/lifecycle/Initialize.groovy

Before Any GUI Work

Good Place for Look and Feel Setup

griffon-app/lifecycle/Startup.groovy

After Startup MVC Groups are Initialized

griffon-app/lifecycle/Ready.groovy

After the EDT Calms Down

griffon-app/lifecycle/Shutdown.groovy

After a Shutdown is Successfully Initiated

Packaging How do you… Keep an Applet From Thrashing the Server for BeanInfos? Create a Self-Signed Certificate? Use Pack200 On a Signed Jar? Over 1 MB? Create a Draggable Applet? Write a JNLP file? Switch Between the Applet and Object Tags? When do you Use Applet or Object?

How do you…

Keep an Applet From Thrashing the Server for BeanInfos?

Create a Self-Signed Certificate?

Use Pack200

On a Signed Jar?

Over 1 MB?

Create a Draggable Applet?

Write a JNLP file?

Switch Between the Applet and Object Tags?

When do you Use Applet or Object?

Packaging Griffon Handles Standard Packaging Issues Pack 200 quirks Useful Applet Parameters JNLP Generation Uses Sun Java Deployment Toolkit JavaScripts

Griffon Handles Standard Packaging Issues

Pack 200 quirks

Useful Applet Parameters

JNLP Generation

Uses Sun Java Deployment Toolkit JavaScripts

Room to Grow Plug-ins (Deeply Inspired by Grails 1.1 plug-ins) Existing Plug-ins swingx-builder – SwingX Components jide-builder – Jide-oss Components fest – Swing GUI Testing easyb – Behavior Driven Testing installer – Packages (deb, dmg, rpm) and IzPack

Plug-ins

(Deeply Inspired by Grails 1.1 plug-ins)

Existing Plug-ins

swingx-builder – SwingX Components

jide-builder – Jide-oss Components

fest – Swing GUI Testing

easyb – Behavior Driven Testing

installer – Packages (deb, dmg, rpm) and IzPack

More Information Web links http://griffon.codehaus.org/ [email_address] Creators' blogs Danno Ferrin http://shemnon.com/speling Andres Almiray http://jroller.com/aalmiray James Williams http://jameswilliams.be/blog

Web links

http://griffon.codehaus.org/

[email_address]

Creators' blogs

Danno Ferrin http://shemnon.com/speling

Andres Almiray http://jroller.com/aalmiray

James Williams http://jameswilliams.be/blog