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Release 1.6

Anticipated Time Frame - Q1 2009

• New compiled file deployment structure
  • Easily compile into a war file structure, making it easy to deploy your compiled GWT application into standard servlet containers
• Migration from Tomcat to Jetty hosted mode server
  • A more pluggable architecture for the hosted mode server will enable developers to use servlet containers other than Tomcat with the Hosted Mode browser
• Uniform event handlers
  • Event handlers will be implemented in a uniform fashion across all widgets, with listeners deprecated
• DatePicker, LazyPanel migrated in from incubator
  • New widgets from the incubator
• String performance improvements
  • StringBuilder uses deferred binding to optimize string appends per-browser
• Compiler performance improvements
  • 1.6 will introduce parallel permutation compilations and other performance tweaks for faster compiles

Post 1.6

The following are features that are on our roadmap for releases post 1.6, but are in various states of development. As we reach the end of the 1.6 cycle, we'll update the roadmap with which features we are targeting for the next release.

• Developer Guided Code splitting
  • Developer guided code splitting is a mechanism that allows developers to specify asynchronous split points in their code where the code base can be split and downloaded in different chunks. This is currently an R&D project but looks promising.
• Analysis of compiled code, aka Story of your compile (SOYC)
  • Aims to give developers concrete information about their compiled JavaScript, such as which Java classes are generating the most JavaScript code.
• In-browser hosted mode, aka Out-of-process Hosted Mode (OOPHM)
  • In-browser hosted mode will allow GWT developers to debug their apps within a browser rather than GWT's hosted mode browser
• UI Binder
  • The UI Binder will allow the creation of UI elements in a declarative fashion. Watch for UI Binder to land in the GWT incubator soon.
• Client Bundle
  • Client Bundle implements the power of deferred binding used in Image Bundle in a generic fashion so that it can be used on many resources. These include TextResource, ImageResource, and CSSResource
• RPC performance improvements
  • Ongoing work to improve the performance of RPC
    
    
    

RPC 자체도 Callback 기반입니다. 그 것을 잘 이용한다면 callback 으로도 리턴과 같은 효과를 줄 수 있습니다.

아래 메소드들은 일반적인 메소드와 콜백을 이용하여 리턴을 하는 메소드입니다.

OpenerCommand.java
package com.idstrust.wiseone.ui.common.client.popup; public interface OpenerCommand { void execute(); }

OpenerCommandCollection.java
package com.idstrust.wiseone.ui.common.client.popup; import java.util.ArrayList; @SuppressWarnings("serial") public class OpenerCommandCollection extends ArrayList<OpenerCommand> { public void fireExecute() { for (OpenerCommand command : this) { command.execute(); } } }

OpenerEvents.java
package com.idstrust.wiseone.ui.common.client.popup; import java.util.HashMap; import java.util.Map; public class OpenerEvents { private static Map<String, OpenerCommandCollection> openerCommandsMap; static { install(); openerCommandsMap = new HashMap<String, OpenerCommandCollection>(); } /** * 팝업창 리스너 핸들러를 초기화합니다. */ private native static void install() /*-{ $wnd['__openerEventsHandler'] = function(type) { @com.idstrust.wiseone.ui.common.client.popup.OpenerEvents::fireExecute(Ljava/lang/String;)(type); }; }-*/; /** * OpenerCommand 를 추가합니다. * @param type * @param command */ public static void addOpenerCommand(String type, OpenerCommand command) { OpenerCommandCollection openerCommands = openerCommandsMap.get(type); if (openerCommands == null) { openerCommands = new OpenerCommandCollection(); openerCommandsMap.put(type, openerCommands); } openerCommands.add(command); } /** * OpenerCommand 를 제거합니다. * @param type * @param command */ public static void removeOpenerCommand(String type, OpenerCommand command) { OpenerCommandCollection openerCommands = openerCommandsMap.get(type); if (openerCommands != null) { openerCommands.remove(command); } } /** * OpenerCommand 의 이벤트를 실행시킵니다. * @param type */ protected static void fireExecute(String type) { OpenerCommandCollection openerCommands = openerCommandsMap.get(type); if (openerCommands != null) { openerCommands.fireExecute(); } } /** * 팝업 윈도우에서 부모창의 이벤트를 실행시킵니다. * @param type */ public static native void fireOpenerEvents(String type) /*-{ if ($wnd.opener && $wnd.opener['__openerEventsHandler']) { $wnd.opener['__openerEventsHandler'](type); } }-*/; }



실제 사용 예...
Opener 윈도우
OpenerEvents.addOpenerCommand("refresh", new OpenerCommand() { public void execute() { // TODO 이벤트를 처리합니다. } });

Popup 윈도우
OpenerEvents.fireOpenerEvents("refresh");