[Challenge:Future] Chocoholic
0 likes279 views
The document compares several popular Java web frameworks and provides criteria for evaluating them. It discusses traditional criteria like performance and ease of development. It also covers advanced criteria such as AJAX support, view languages, and community size. Example code is shown for frameworks like Groovy/Grails, GWT, Struts 2, Tapestry, and Wicket. The document concludes that there is no single best framework, and developers should understand their needs and try sample applications in candidate frameworks.
[Challenge:Future] Chocoholic
- 1. CHOOSING A JAVA WEB FRAMEWORK: A COMPARISON Richard Pack, Lead User Interface Architect TS-6457
- 2. •Learn how to choose a Java™ technology-based Web Framework •Enable you to: Categorize and understand what type of UI you’re building Understand the features and nomenclature of Model View Controller (MVC) Weigh the trade-offs 2008 JavaOneSM Conference | java.sun.com/javaone | 2
- 3. Agenda Introduction Current Web Frameworks The Traditional Criteria What are the problems that users are facing? What are your needs? The Advanced Criteria The Frameworks Summary and Conclusions Questions 2008 JavaOneSM Conference | java.sun.com/javaone | 3
- 4. Current Frameworks Action Framework DWR JSPWidget OpenEmcee SwingWeb Anvil Echo Jucas OpenXava Tapestry Aranea Expresso JWAA OXF TeaServlet Aurora fleXive JWarp Pustefix ThinWire Baritus Folium jWic Restlet Trimpath Junction Barracuda GWT jZeno RIFE Turbine Bento Bishop Helma Over 100 Frameworks Groovy/Grails jZonic Macaw RSF Seam Verge VRaptor Canyamo Jacquard Makumba Shocks Warfare Cassandra Jaffa Maverick Smile WebOnSwing Chiba Japple Melati SOFIA WebWork Chrysalis JATO Mentawai Spring MVC Wicket Click JFormular Millstone Strecks wingS Cocoon JOSSO MyFaces Stripes Xoplon Dinamica JPublish Nacho Struts ZK Dovetail JSF Niggle Struts 2 ztemplates 2008 JavaOneSM Conference | java.sun.com/javaone | 4
- 5. The Criteria The traditional set The Hello World test • What does it take to write Hello World? Performance • Filter or servlet? View decoration style • Does it use Templates or JavaServer™ Pages (JSP™) software/Taglibs, Java technology control of blocks? Speed of Deployment • What does it take to ship it? Speed of Development - 3 Parts • New - what is the learning curve? • Existing - how much time does it take to add simple features? • Agile - is changing features easy? 2008 JavaOneSM Conference | java.sun.com/javaone | 5
- 6. The Criteria The traditional set - continued Validation • Does it have lots of build-in validators? Internationalization / Multilingualization • What style of properties? Varying scopes? Documentation Bookmark-ability Scalability 2008 JavaOneSM Conference | java.sun.com/javaone | 6
- 7. So why is this important Difficult for the stakeholders to Configuration becomes difficult to understand and use manage when the app grows End up writing lots of non-reusable No way to run a debugger in the code templates No unified Ajax transport Ability for the view to be used as Direct persistence to Request, the controller Session or Context JSP software/JSTL becomes a Limited Documentation nightmare to read when the page grows Writing boilerplate code Templates may have a steep No unified event model learning curve Difficult for traditional web Speed of deployment designers 2008 JavaOneSM Conference | java.sun.com/javaone | 7
- 8. What are my needs? Am I building an application? How big is my application? What is my usage scenario? Is this likely to change? • You are building for the future. Do I really need a 3-tier architecture? What is the size and competencies of my team? 2008 JavaOneSM Conference | java.sun.com/javaone | 8
- 9. Sweet Spots Not a one size fits all game • Some requirements may have diverging implementations which creates trade-offs Different frameworks for different usage scenarios • View (Read) only. Ex - storefront, blog, online bank, corporate website • Write only • Both view and write • Highly Interactive 2008 JavaOneSM Conference | java.sun.com/javaone | 9
- 10. The Criteria The advanced set AJAX support Client/Server JavaScript™ • Integrated or after the fact programming language • Does it rely on external tools • Is there tight coupling between the languages View language • Java programming language, EL, OGNL, Does another part of the company Multiple use the framework? Community Do your developers have • Active, continual development experience with it? Maturity Client event driven? Aka Does it Pull based or Push based support Services? 3-tier support - EJB/Spring and Does it have an Archetype hibernate Friendly URLs: URL mapping 2008 JavaOneSM Conference | java.sun.com/javaone | 10
- 11. Groovy/Grails <!-- template code --> Usage type: View / Write <div id="table" class="hidden"> • Extension to the Java <%=dojoTable(id:'Defs', programming language title:l.ClassicDefsTable, url:urlFor(action:'defData'),s Pros: chema:defSchema, numRows:15) • Hot-deploy %> • Simple configuration </div> • Closures //Groovy • Integrates Spring and Hibernate static String dojoTable(Binding scriptBinding, params) Cons: • Slow compared to native def id = "${params.id}" frameworks def res = new StringBuffer(""" <script type="text/javascript"> dojo.require("dojo.topic"); 2008 JavaOneSM Conference | java.sun.com/javaone | 11
- 12. Groovy/Grails AJAX support? No View Language Java, Groovy Push or Pull Push Maturity Young Community Small, but growing 3 Tier F/W support Yes Friendly URLs Not built in 2008 JavaOneSM Conference | java.sun.com/javaone | 12
- 13. Google Web Toolkit (GWT) Usage Type: View / Write • Modified Java programming language support Pros: • Simplicity, Swing/SWT Like • Lots of built in components • Strong binding between Java and Javascript programming languages • Project Archetype Cons: • Hard to control css classes • Built in components are fairly basic (Solved with GWT-Ext) • Currently no support for Java 5/Java 6 programming language 2008 JavaOneSM Conference | java.sun.com/javaone | 13
- 14. Google Web Toolkit (GWT) public class Mail implements EntryPoint, ... { public void onModuleLoad() { topPanel.add(menuBar); rightPanel.add(list); mainPanel.add(table); Window.enableScrolling(false); Window.setMargin("0px"); DockPanel outer = new DockPanel(); outer.add(topPanel, DockPanel.NORTH); outer.add(leftPanel, DockPanel.EAST); outer.add(mainPanel, DockPanel.CENTER); History.addHistoryListener(this); RootPanel.get().add(outer); 2008 JavaOneSM Conference | java.sun.com/javaone | 14
- 15. Google Web Toolkit (GWT) AJAX support? Yes View Language Java generated Push or Pull Pull Maturity Young Community Small 3 Tier F/W support No Friendly URLs Yes, with some work 2008 JavaOneSM Conference | java.sun.com/javaone | 15
- 16. Struts 2 Usage Type: View / Write, Highly Interactive Pros: • First class AJAX support • Spring container integration • POJOs as controllers, doesn’t require inheritance • FreeMarker and Velocity support Cons: • Still uses LOTS of XML configuration • Still leaves the flow mapping to XML 2008 JavaOneSM Conference | java.sun.com/javaone | 16
- 17. Struts 2 public class LoginAction implements Preparable { public LoginAction(LoginService service) { this.service = service; } public String execute() { return Action.SUCCESS; } public String login() { service.login(un, pw); return execute(); } <s:textfield id="userName" label="UserName" name="login.firstName"/> <s:textfield id="password" label="Password" name="login.lastName"/> <s:submit theme="ajax" targets="login" notifyTopics="/login"/> 2008 JavaOneSM Conference | java.sun.com/javaone | 17
- 18. Struts 2 AJAX support? Yes View Language JSP, OGNL Push or Pull Push Maturity Young Community Medium 3 Tier F/W support Yes Friendly URLs Not built in 2008 JavaOneSM Conference | java.sun.com/javaone | 18
- 19. Tapestry Usage type: View / Write, Highly Interactive Pros: • Uses annotated HTML templates • Hot-deploy (Version 5) • Simple configuration • First class AJAX support, and lots of it Cons: • Documentation doesn’t use real world problems • No API backwards compatibility between major versions 2008 JavaOneSM Conference | java.sun.com/javaone | 19
- 20. Tapestry <!-- template code --> <div jwcid="@hyperic:MessagePanel" message="message"/> <input jwcid="@hyperic:InputField" fieldValue="userName" fieldTitle="message:userNameTitle" fieldLabel="message:userName"/> <a jwcid="@hyperic:Button" listener="listener:signinButtonListener" label="message:signInButton" enableKeyListener="true" /> //Java Controller public abstract class SignIn extends BasePage { @Persist() public abstract String getUserName(); public abstract void setUserName(String userName); public ILink signinButtonListener(IRequestCycle cycle) { //button click listener ... } 2008 JavaOneSM Conference | java.sun.com/javaone | 20
- 21. Tapestry AJAX support? Extensive View Language OGNL, Prop Push or Pull Pull Maturity Mature Community Large, Active 3 Tier F/W support Yes Friendly URLs Yes 2008 JavaOneSM Conference | java.sun.com/javaone | 21
- 22. Wicket Usage Type: Highly Interactive Pros: • Annotated HTML Templates • Excellent documentation • Components can be extended • Everything is done in Java programming language Cons: • Everything is done in Java programming language 2008 JavaOneSM Conference | java.sun.com/javaone | 22
- 23. Wicket //Definition public class Login extends WebPage { public Login(){ add(loginPanel); } public void onSubmit(){ login(); setResponsePage(new HomePage()); } } <wicket:panel><div wicket:id="login"> <div><span wicket:id="username"></span></div> <div><span wicket:id="password"></span></div> </div></wicket:panel> // Usage add(new LoginPanel("login", login); <span wicket:id="login"/> 2008 JavaOneSM Conference | java.sun.com/javaone | 23
- 24. Wicket AJAX support? Extensive View Language OGNL Push or Pull Pull Maturity Moderate Community Medium, Active 3 Tier F/W support Yes Friendly URLs Yes 2008 JavaOneSM Conference | java.sun.com/javaone | 24
- 25. Summary Not all frameworks are equal Understand and outline your needs Find a few that look like they meet those needs Use the criteria and evaluate Don’t take my word for it, try a “Hello World” of your own 2008 JavaOneSM Conference | java.sun.com/javaone | 25
- 26. For More Information These slides • www.hyperic.org/conferences/slides Java Framework “Sweet Spots” • www.virtuas.com/files/JavaWebFrameworkSweetSpots.pdf The Frameworks • grails.codehaus.org/ • code.google.com/webtoolkit/ • struts.apache.org/ • tapestry.apache.org • wicket.apache.org 2008 JavaOneSM Conference | java.sun.com/javaone | 26
- 27. CHOOSING A JAVA WEB FRAMEWORK: A COMPARISON Richard Pack TS-6457 2008 JavaOneSM Conference | java.sun.com/javaone | 27