| [Xpand] Using Xpand programmatically [message #638299] |
Wed, 10 November 2010 18:17  |
 Rafael Angarita
Messages: 94
Registered: November 2010 |
Member |
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Hello, I exported my Xtext projects as pluging and created a new Java project and added the Xtext Nature, so I can write code using the language I defined. Now, I would like to generate source code using the template I defined in my Xpand project.
Unfortunally, I have not had much success in finding documenation and tutorials about using Xpand programmatically, so I am working almost only with the information I have found in other posts. Therefore I am a little bit lost.
In my Java project I created a class with the following code:
OutputImpl output = new OutputImpl();
Outlet outlet = new Outlet("xpandOutput");
outlet.setOverwrite(true);
output.addOutlet(outlet);
Outlet outputOutlet = new Outlet("testOutput");
outputOutlet.setName("OUT_FILE");
output.addOutlet(outputOutlet);
// create an execution context
XpandExecutionContextImpl execCtx = new
XpandExecutionContextImpl(output, null);
execCtx.registerMetaModel(new JavaBeansMetaModel());
org.eclipse.xtend.expression.Resource template =
execCtx.getResourceManager().loadResource("myTemplate", "xpt");
execCtx = (XpandExecutionContextImpl)(execCtx.cloneWithResource(template));
XpandFacade facade = XpandFacade.create(execCtx);
String templateName = "expSpecification";
List<Object> params = new ArrayList<Object>();
facade.evaluate2(templateName, targetObject, params);
One of the problems I have is that I am not sure about what the targetObject should be. Also, I don't know in which step I am suppossed to tell Xpand about the file from which the code would be generated.
I would appreciate if someone could help me or show me any tutorial or documentation about this specific proccess.
Thank you very much.
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