Java SE 6 Update 10. la piattaforma Java per le RIA. Corrado De Bari. Sun Microsystems Italia Spa. Software & Java Ambassador

Transcription

1 Java SE 6 Update 10 & JavaFX: la piattaforma Java per le RIA Corrado De Bari Software & Java Ambassador Sun Microsystems Italia Spa 1

2 Agenda What's news in Java Runtime Environment JavaFX Technology Key Features Architecture & Tools JavaFX Script tutorial 2

3 New Features in 6u10 JavaKernel: faster download and install Java Quick Starter: faster applet start Rewritten Java Plugin Applets run in own JVM Unified desktop / browser deployment Draggable Applet Scriptable applets Direct3D support Try:

4 Architectural Overview Applet 1 Applet 2 HTML Web Page Applet 3 4

5 Architectural Overview Ground-up rewrite of the support for applets in the web browser Applets are no longer executed in a Java Virtual Machine (JVM ) inside the web browser Instead, a separate JVM machine process is launched to execute the applets By default, only one JVM machine is launched Opportunity to launch more than one JVM machine Same resource consumption and sharing properties as the classic Java technology-based Plug-In To support per-applet command-line arguments, heap size requests, and more Architectural similarities to Java Web Start software, but tighter browser integration

6 Architectural Overview Client JVM 1 OS Process 2 Thin Server JVM OS Process 1 Client JVM 2 OS Process 3 6

7 Compatibility Backward compatibility based on runs of hundreds of applets from throughout the web Applet lifecycle unchanged init(), start(), stop(), destroy() All services supported: Browser proxy settings Browser certificate store Browser authenticator Browser cookie store showdocument() support Printing Java/JavaScript integration 7

8 JNLP Support Most significant new feature Unifies deployment between Java Web Start and the Java Plug-In Incorporate JNLP extensions trivially in applets JavaFX run-time libraries, JOGL, Java 3D, JAI Use JNLP APIs from applets Simply choose the top-level container (Frame / Applet) PersistenceService, DownloadService,... Full support for JVM command-line arguments, JRE version selection, JRE auto-download 8

9 Basic JNLP Example <applet width= 500 height= 500 > <param name= jnlp_href value= my_applet.jnlp > </applet>

10 Basic JNLP Example <?xml version= 1.0 encoding= UTF-8?> <jnlp href= my_applet.jnlp > <information> <title= My Applet > <vendor>my Company, Inc.</vendor> <offline-allowed /> </information> <resources> <j2se version= 1.4+ href= /> <jar href= my_jar_1.jar main= true /> <jar href= my_jar_2.jar /> </resources> <applet-desc name= My Applet main-class= com.mycompany.myapplet width= 1 height= 1 /> </jnlp>

11 Applet-Desc Tag <?xml version= 1.0 encoding= UTF-8?> <jnlp href= my_applet.jnlp > <information> <title= My Applet > <vendor>my Company, Inc.</vendor> <offline-allowed /> </information> <resources> <j2se version= 1.4+ href= /> <jar href= my_jar_1.jar main= true /> <jar href= my_jar_2.jar /> </resources> <applet-desc name= My Applet main-class= com.mycompany.myapplet width= 1 height= 1 /> </jnlp>

12 Applet-Desc Tag width and height are ignored Browser always overrides because it knows best how big the applet needs to be Relative width and height supported in applet tag (i.e., 50% ) main-class parameter always used code parameter from applet tag is ignored Enables backward compatibility mechanisms (described later)

13 Java / JavaScript Support Completely rewritten Java / JavaScript integration More complete, reliable and portable than before Formerly Mozilla-specific functionality now working in Internet Explorer Static method access Construction of new Java objects from JavaScript Respecifying and reintroducing LiveConnect 13

14 DOM Access Enables AJAX-style web apps using Java language DOM access via W3C APIs has been rewritten Built on top of new Java/JavaScript support New, much simpler bootstrapping entry point org.w3c.dom.document doc = com.sun.java.browser.plugin2.dom. getdocument(applet); Can then cast to HTMLDocument and descend into the DOM Perform operations from any thread Underlying Java/JavaScript bridge is thread safe 14

15 Support for Advanced Applets Control over Java heap size Control over Java 2D acceleration parameters Ideal environment for running 3D content JOGL applet examples NASA World Wind Java: Jake2 Bytonic Software: 15

16 JavaFX JavaFX is THE platform for creating and delivering Rich Internet Applications across all the screens of your life JavaFX is Powered by Java

17 Key Features One-stop shop RIA platform for all screens: Broadest market reach: Build engaging visual experiences across desktop, browser and mobile with a unified development and deployment model. Distribute RIAs easily across billions of devices with the power of Java. Designer-developer workflow: Dramatically shorten your production cycle for design and development.

18 Key Features (Continued) Powerful runtime: Break free from the browser: Leverage the extreme ubiquity, power, performance and security of the Java runtime. Drag-and drop a JavaFX application from the browser to deploy to the desktop. Java technology compatibility: Preserve your investment by enabling the use of any Java library within a JavaFX application.

19 What you can do: Simple Video Player Incorporating video in your application is as simple as creating an instance of this component, setting a few variables and including a link to your video source.

20 3-D Display Shelf: the PerspectiveTransform The PerspectiveTransform built into JavaFX can be used to easily create 3-D effects

21 Flying Saucer The new out-of-process Java applet plugin in Java SE 6 update 10 enables you to make applets which can run outside of the browser.

22 Demo: JavaFX apps

23 JavaFX architecture

24 JavaFX roadmap Desktop Product Line JavaFX Desktop (Winter 2008) Mobile Product Line JavaFX Mobile (Spring 2009) TV Product Line Other Platforms JavaFX TV (Summer 2009) With Partner platforms/oss 24

25 JavaFX Tools 25

26 JavaFX Tools JavaFX 1.0 Plugin for Adobe Photoshop and JavaFX 1.0 Plugin for Adobe Illustrator JavaFX 1.0 Media Factory SVG Converter Viewer 26

27 How to Deploy Java Plugin Java Web Start JavaFX 1.0 Mobile Emulator Beta Release 27

28 JavaFX APIs JavaFX Scene JavaFX Media Media player, native and cross platform codecs JavaFX Web Services Node based GUI framework REST-ful JavaFX Profiles Common Desktop Mobile (coming Spring 09)

29 JavaFX Script Created for rapid and easy GUI creation Object-oriented Namespaces, Classes, attributes, functions and operations Declarative syntax Both static-typing & type-inference Animation, data binding and event handing built in

30 Example: Hello World in Swing import javax.swing.*; public class HelloWorldSwing { public static void main(string[] args) { JFrame frame = new JFrame("HelloWorld Swing"); final JLabel label = new JLabel("Hello World"); frame.getcontentpane().add(label); frame.setdefaultcloseoperation( JFrame.EXIT_ON_CLOSE); frame.pack(); frame.setvisible(true); 30

31 Example: Hello World in JavaFX Declarative Syntax Frame { title: "Hello World JavaFX" width: 200 height: 100 visible: true stage: Stage { content: [Text { font: Font { size: 24 style: FontStyle.PLAIN x: 10, y: 30 content: "Hello World" ] 31

32 Class Definition Address class definition: The Address class declares street, city, state, and zip instance variables all of type String class Address { var street: String; var city: String; var state: String; var zip: String;

33 Class Definition Customer class definition with functions functions are like methods in Java class Customer { var firstname: String; var lastname: String; var phonenum: String; var address: Address; function printname() { println("name: {firstname {lastname"); function printphonenum(){ println("phone: {phonenum");

34 Create an Object Nesting Address object inside Customer object def customer = Customer { firstname: "John"; lastname: "Doe"; phonenum: "(408) "; address: Address { street: "1 Main Street"; city: "Santa Clara"; state: "CA"; zip: "95050";

35 Step by Step Process of Creating a simple GUI JavaFX application that renders a green rounded rectangle and a white circle with red outline on the top of the rectangle

36 Step by Step Process of Creating a GUI 1.Add necessary imports 2.Create an Application window 3.Set the Scene 4.Create a Rectangle 5.Create a Circle 6.Change the code (so that the Circle gets underneath the Rectangle)

37 1. Add Necessary Imports import javafx.stage.stage; // required to render a window import javafx.scene.scene; // required to display a circle and // rectangle on a window import javafx.scene.shape.rectangle; // required to render the rectangle import javafx.scene.paint.color; // required to fill and stroke the // rectangle and circle with color import javafx.scene.shape.circle; // required to render the circle

38 2. Create an Application Window In order to display the graphics, you need to create a window through Stage object literal // Create a Stage object literal. Stage is required to render any object. // The window should be big enough to display all of the rectangle and // the circle. In this example, the window is a rectangle of 249 by 251 // pixels. To create a window of this size, with a "Declaring is Easy" title, // declare these values within the curly brackets using the following code: Stage { title: "Declaring Is Easy!" width: 249 height: 251 visible: true

39 3. Set the Scene Within the stage, set the scene to hold Node objects such as a circle or a rectangle The scene is a root area where you place objects of the node type. The scene has content variable that is used to hold the nodes. There are many different kinds of nodes, such as graphical objects, text, and GUI components.

40 3. Set the Scene (Continued) // The content of the window becomes filled with white because // white is a default fill color for a scene. The scene is placed on top // of the window. Stage {... scene: Scene { content: [ ]

41 4. Create a Rectangle Stage {... scene: Scene { content: [ // The x and y instance variables specify the pixel location of the // rectangle, arcwidth and archeight define the roundness of // corners, and the fill variable defines the color that fills the rectangle. Rectangle { x: 45 y: 35 width: 150 height: 150 arcwidth: 15 archeight: 15 fill: Color.GREEN ]

42 5. Create a Circle Stage {... scene: Scene { content: [ Rectangle {..., // Because the rectangle is declared before any other objects, it is painted // first. The rectangle will be behind any other objects painted later. Circle{ centerx: 118 centery: 110 radius: 83 fill: Color.WHITE stroke: Color.RED ]

43 6. Place Circle Underneath Rectangle Stage {... scene: Scene { content: [ // Place the circle underneath the square. To do so, switch the order // of the circle and square Circle{..., Rectangle {... ]

44 Effects: DropShadow Text { effect: DropShadow { offsety: 3 color: Color.color(0.4, 0.4, 0.4) ;..., Circle { effect: DropShadow { offsety: 4,...

45 Images ImageView = ImageView { clip: Rectangle { y: 30 x: 50 width: 350 height: 100 image: Image { url: "..." 45

46 JavaFX Script: Data Binding // will be modified elsewhere var count:integer = new Integer(); // The label text is bound to the count Label { text: bind count.value.tostring( )

47 JavaFX Script: Event Triggers // Triggering validation of the // number of wheels on a vehicle attribute numwheels:integer = 4 on replace (oldvalue) { if (numwheels <= 0) { System.out.println("{numWheels wheels not valid, changing back to {oldvalue!"); numwheels = oldvalue; ;

48 Resources JavaPassion Trainings (Source of this presentation):

49 Java SE 6 Update 10 & JavaFX: la piattaforma Java per le RIA Corrado De Bari Software & Java Ambassador Sun Microsystems Italia Spa 49