Eclipse Community Forums: EMF » Getting EObject from an URI

Home » Modeling » EMF » Getting EObject from an URI(Trying to convert EObject to URI and back to EObject in editors)

Show: Today's Messages :: Show Polls :: Message Navigator

Getting EObject from an URI [message #1830568]

Wed, 29 July 2020 09:08

Palraj Jayaraj

Messages: 15
Registered: June 2015

Junior Member

Hello Everyone,
I'm beginner in EMF frameworks and tools. I have an Editor which takes URIEditorInput, for displaying an EMF model data.
So, I convert an EObject to URI using the API EcoreUtil.getURI(EObject) and create an URIEditorInput and pass it for opening the editor.

Now, I'm need in need of accessing the EObject inside the Editor instance.

so, How can I convert the URI to an EObject? I analyzed a bit and found that there is a resource API to fetch the EObject (Resource.getEObject(String uriFragment)). But, I'm unable to find an API to fetch Resource from the URI.

can someone please advice a way to convert URI to it's corresponding EObject?

Thanks,
Pal

Report message to a moderator

Re: Getting EObject from an URI [message #1830570 is a reply to message #1830568]

Wed, 29 July 2020 09:44

Ed Merks

Messages: 32741
Registered: July 2009

Senior Member

You can use resourceSet.getEObject(uri, true).

Ed Merks
Professional Support: https://www.macromodeling.com/

Report message to a moderator

Re: Getting EObject from an URI [message #1830571 is a reply to message #1830570]

Wed, 29 July 2020 10:10

Palraj Jayaraj

Messages: 15
Registered: June 2015

Junior Member

Thanks Ed for the reply.

But, sorry for me , being naive, How to get the ResourceSet from an URI?

[Updated on: Wed, 29 July 2020 10:10]

Report message to a moderator

Re: Getting EObject from an URI [message #1830573 is a reply to message #1830571]

Wed, 29 July 2020 10:24

Ed Merks

Messages: 32741
Registered: July 2009

Senior Member

Are you opening the generated editor? I assume so, in which case, look at what the createModel method does.

Ed Merks
Professional Support: https://www.macromodeling.com/

Report message to a moderator

Re: Getting EObject from an URI [message #1830575 is a reply to message #1830573]

Wed, 29 July 2020 10:48

Palraj Jayaraj

Messages: 15
Registered: June 2015

Junior Member

Sorry Ed for not being specific,

I'm not opening a generated editor , but, a custom built editor.

Report message to a moderator

Re: Getting EObject from an URI [message #1830585 is a reply to message #1830575]

Wed, 29 July 2020 12:51

Ed Merks

Messages: 32741
Registered: July 2009

Senior Member

Well, an editor ought to have support for undo/redo and such things, so you'd probably be best off to start with the generated editor and then customize it. In any case, you can generate the editor and look at how it's implemented for guidance.

Ed Merks
Professional Support: https://www.macromodeling.com/

Report message to a moderator