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Introduction to GWT
 

Introduction to GWT

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Presentation slides for "Introduction to GWT" presented for UK Java User Group Scotland.

Presentation slides for "Introduction to GWT" presented for UK Java User Group Scotland.

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    Introduction to GWT Introduction to GWT Presentation Transcript

    • Introduction to GWT Petteri Hietavirta
    • What is all about? 1. Write some Java code 2. Compile 3. AJAX web application!
    • Couple benefits It is Java code for you • to write • to debug
    • ...Couple benefits... Compiled for all main browsers = less effort, more optimized code
    • ...Couple benefits Plenty of support and examples Active community
    • Features • API • Ready made widgets (but not limited to) • RPC (JSON goes as well) • History support • Debugger • JUnit • i18n • JSNI • Apache Licence v2
    • GWT 2.0 new features • Code splitting • UI binder • Client bundles • Layout panels • Improved compilation • Speed Tracer
    • How to get started? 1. Install GWT Eclipse plug-in 2. Create a project
    • Example 1 Super Simple API, widgets
    • Example 2 Somewhat functional API, Widgets, Debugger
    • Example 3 Client-Server API, Widgets, RPC
    • Example 4 CC7 API, Widgets, JSON, i18n, JSNI, Ext GWT, and some others
    • Some issues with GWT • CSS still not trouble free between browsers • GWT widgets are primitive in some cases • Client side Java is only a subset • Compilation time
    • Questions? Comments and critic also welcome