Wiki source code of Create a new WO Component

Version 10.1 by Mike Schrag on 2005/11/19 11:42

author	version	line-number	content
		1	Let's add a new WO Component to our project.
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		3	~1. Right-Click/Ctrl-Click on the project and select "New" => "WOComponent"
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		5	[[image:Picture 25.png]]
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		7	----
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		9	2. The "New WebObjects Component" dialog opens. The only required field is the WOComponent name. Let's just use the default "MyComponent" as the component name. I generally deselect "Create body tag" and "Create api file", but you can leave them if you'd like. Click "Finish" to continue.
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		11	[[image:Picture 26.png]]
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		13	----
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		15	3. You should now have a new MyComponent.java in your source folder, a MyComponent.wo folder at the project root (or whereever you decide to add the component), a wod, woo, html, and optional api file, and the Component Editor should now open to show your new component.
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		17	[[image:Picture 27.png]]
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		19	----
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		21	4. Switch to the "Java" tab and add the "greeting" method as defined in the picture below and save.
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		23	[[image:Picture 28.png]]
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		25	----
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		27	5. Now switch to the "Component" tab, add a <webobject> tag in the HTML and save, then the WOD definition and save. Note that you must save each of the editors individually for changes to be visible ~-~- even in the split view. If your file is unsaved, you will see a "" next to the filename in the tab at the top of the editor.
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		29	[[image:Picture 29.png]]
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		31	----
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		33	6. Now switch to your Main.wo Component Editor "Component" tab and add a <webobject> tag named "Greeting" and save. Switch to the WOD editor and add a Greeting element that is of type "MyComponent" (you'll notice that code completion now shows MyComponent in the list, because it is a subclass of WOElement).
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		35	[[image:Picture 30.png]]
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		37	----
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		39	7. Adding a new Java file technically is not a violation of Hot Code Replacement, however, WO seems to not like a new HTML template appearing in your bundle that it doesn't know about. So go ahead and stop your app if it's running and then re-debug it (from the previous instructions). You should now have a "Hello!" in Main.wo is generated by the embedded MyComponent component.
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		41	[[image:Picture 31.png]]
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		43	----
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		45	8. Continue on to see how to [[Add a Framework Dependency]] to your project.