| How programmatically modify model elements' attributes? [message #131984] |
Mon, 04 June 2007 08:49  |
Eclipse User |
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Originally posted by: tyhoho.gmail.com
I use my gmf developed editor draw a gragh, the model file and diagram
file are named"hello.test"and "hello.diagram_test".I want to rename one of
the elements in the model file programmatically,here is the code
TransactionalEditingDomain editingDomain =
GMFEditingDomainFactory.INSTANCE
.createEditingDomain();
ResourceSet resourceSet = editingDomain.getResourceSet();
EMDiagramImpl modelDiagram=null;//it's the diagram for the model
Resource resourceModel = resourceSet.getResource(URI
.createPlatformResourceURI("fileroot/hello.test", true), true);
diagramRoot= (EMDiagramImpl) resourceModel.getContents().get(0);
EList docList=modelDiagram.getDocument();
EMPDocumentImpl doc=(EMPDocumentImpl)(docList.get(0));//
doc.setName("can i change it");//!!note:doc is not null!!
Errors are arised by the last sentence,they are:
1.java.lang.IllegalStateException: Cannot modify resource set without a
write transaction
2.Unhandled event loop exception
Anybody can help?
Thanks in advance.
Tina
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| Re: How programmatically modify model elements' attributes? [message #131997 is a reply to message #131984] |
Mon, 04 June 2007 08:53  |
| Eclipse User |
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Originally posted by: tyhoho.gmail.com
Tina Chen wrote:
> I use my gmf developed editor draw a gragh, the model file and diagram
> file are named"hello.test"and "hello.diagram_test".I want to rename one of
> the elements in the model file programmatically,here is the code
> TransactionalEditingDomain editingDomain =
> GMFEditingDomainFactory.INSTANCE
> .createEditingDomain();
> ResourceSet resourceSet = editingDomain.getResourceSet();
> EMDiagramImpl modelDiagram=null;//it's the diagram for the model
> Resource resourceModel = resourceSet.getResource(URI
> .createPlatformResourceURI("fileroot/hello.test", true), true);
> diagramRoot= (EMDiagramImpl) resourceModel.getContents().get(0);
> EList docList=modelDiagram.getDocument();
> EMPDocumentImpl doc=(EMPDocumentImpl)(docList.get(0));//
> doc.setName("can i change it");//!!note:doc is not null!!
> Errors are arised by the last sentence,they are:
> 1.java.lang.IllegalStateException: Cannot modify resource set without a
> write transaction
> 2.Unhandled event loop exception
> Anybody can help?
> Thanks in advance.
> Tina
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