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Last modified by Steve Peery on 2013/05/29 14:41
From version 5.1
edited by Pascal Robert
on 2011/12/27 06:58
Change comment: There is no comment for this version
To version 1.1
edited by Pascal Robert
on 2011/12/27 05:52
Change comment: There is no comment for this version

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1 1  For your first project, we will do the classic "Hello world" example. This tutorial is more for learning how the development tools works.
2 2  
3 -First, we will create a new Wonder Application. In Eclipse, open the **File** menu, select **New** and select **Wonder Application**.
3 +First, we will create a new Wonder Application. In Eclipse, open the **File** menu, open **New** and select **Wonder Application**.
4 4  
5 5  [[image:NewWOProject.png||border="1"]]
6 6  
... ... @@ -8,82 +8,3 @@
8 8  {{info}}
9 9  If the Wonder project types don't appear in the File->New menu, you are probably in a Java perspective instead of WOLips.
10 10  {{/info}}
11 -
12 -The project wizard will ask for the project name. Enter **HelloWorld**. Click **Finish**.
13 -
14 -[[image:SetProjectName.png||border="1"]]
15 -
16 -{{info}}
17 -Don't put spaces in the project name, Eclipse have a hard time with projects that have spaces in the file system path.
18 -{{/info}}
19 -
20 -The project have been created, you will see it in the **WO Explorer** tab. Expand it (click on the triangle next to the project name) and you will see the following folders:
21 -
22 -* **Sources**: this folder holds all of your Java source code. When you create a new project, that folder have 4 files: Application.java, Session.java, DirectAction.java and Main.java.
23 -* **JRE System Library**: don't touch this.
24 -* **Components**: this folder holds all of your Project Wonder components.
25 -* **Libraries**: if you have JARs, for example JDBC drivers, that you need for your project, put them in there.
26 -* **Resources**: that folder is for Project Wonder-specific files. A **Properties** file is added by default.
27 -* **WebServerResources**: that folder is for "static" content that you use in your components, be it images, CSS or JavaScript files.
28 -* **woproject**: this folder holds 6 files that the Ant builder use to include or exclude files and folders in the build product. 99% of the time, you don't need to customize those files.
29 -* **build.xml**: This is the XML file to build the project with Ant. Note that this is to build a "product", when you run the project in Eclipse, it use the incremental builder instead of Ant.
30 -
31 -So let's run the project. Expand the **Sources** folder, expand the **your.app** package, right-click on **Application.java** and select **Run As** > **WOApplication**. This action will start the project and it will create a run configuration for Eclipse.
32 -
33 -After a couple of seconds, the project will be started and a page will open in your favorite browser. You just run your first Project Wonder application, congratulations
34 -
35 -Now, let's make the "Hello World" to be dynamic. If the HelloWorld application is still running, terminate it by clicking on the square red button in the **Console** tab.
36 -
37 -In the project, open the **Sources** folder, open the **your.app.components** package and open **Main.java**. **Main.java** is the Java part of a Project Wonder component. If you check the content of the **Related** tab, you will see that **Main.java** is related to other files like **Main.wo** and **Main.api**, it's a good way to find out if a Java class is part of a component.
38 -
39 -In the **Main.java** editor tab, you will need to put one variable + one setter + one getter. Complete code:
40 -
41 -{{code language="java" theme="Eclipse"}}
42 -private String myTextForDisplay = "Hello World from the Java world";
43 -
44 -public String myTextForDisplay() {
45 - return myTextForDisplay;
46 -}
47 -
48 -public void setMyTextForDisplay(String myTextForDisplay) {
49 - this.myTextForDisplay = myTextForDisplay;
50 -}
51 -{{/code}}
52 -
53 -Save the file.
54 -
55 -So now we have a variable to display the content of a string. The next step is to open the HTML part of the component to actually display the string. In the **Related** view, double-click on the **Main.wo** file. This action will open the component in the Component Editor.
56 -
57 -Remove the Hello World text from the HTML and replace it with:
58 -
59 -{{code language="java" theme="Eclipse"}}
60 -<wo:str value = "$myTextForDisplay" />
61 -{{/code}}
62 -
63 -And save your modifications. You are now ready to run the application again. The first time you ran the application, it created a run configuration inside Eclipse, so to run the application again, click on the green circle with a white arrow in the toolbar, and select **HelloWorld**.
64 -
65 -The application is now displaying the string for the Java variable You can terminate the application.
66 -
67 -Final step: making the string truly variable by having a small text field to update the string. To do so, go back into the Main component editor view and just after the //<wo:str_ call, add~://
68 -
69 -{{code language="java" theme="Eclipse"}}
70 -
71 -<br />
72 -<wo:form>
73 -<wo:textfield value = "$myTextForDisplay" />
74 -<wo:submit action = "~updateString" />
75 -</wo:form>
76 -
77 -{{/code}}
78 -
79 -Now we have a simple form to update the string. The only thing we need to do is to implement the //updateString// method. Open the **Main.java** file and add the following code:
80 -
81 -{{code language="java" theme="Eclipse"}}
82 -
83 - public WOActionResults updateString() {
84 - return null;
85 - }
86 -
87 -{{/code}}
88 -
89 -Run the project again, and update the string in the text field. It's now 100% dynamic! Since we added a setter for the variable a couple of steps before, you don't need to set the string in the updateString method, that's the power of bindings.