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EVL - Getting the name of the file in which the model is stored [message #1690706]

Mon, 30 March 2015 13:13

Eclipse User

Hello,

I've been trying to get the current file's name in EVL. The concept is that my class SXM holds an attribute called name. This attribute is supposed to get the name of the file in which the SXM is stored if it is not set. However, I can not find a way to retrieve the current file's name through EVL.

Is there a way to do this?

An example:

context SXM {

  constraint HasName {
      check : self.name.isDefined()
      message : 'The model element ' + self.eClass().name + '  should define a name'    
      fix {
          title : 'Name to ' + //get file name

          do {
          	  
              self.name := //get file name
          }
      }  
  }
}

Re: EVL - Getting the name of the file in which the model is stored [message #1690738 is a reply to message #1690706]

Mon, 30 March 2015 19:13

Eclipse User

Hi Niko,

self.eResource().uri should return the URI [1] of the resource that contains the model element in question.

Cheers,
Dimitris

[1] http://download.eclipse.org/modeling/emf/emf/javadoc/2.5.0/org/eclipse/emf/common/util/URI.html

Re: EVL - Getting the name of the file in which the model is stored [message #1690759 is a reply to message #1690738]

Tue, 31 March 2015 01:46

Eclipse User

Thank you Dimitri,

This is exactly what I was after.

A small question that I don't know if it appropriate to be make a new thread out of.

"Is there any real difference between getAllOfAType and xyzClass.All"

var target := UserInput.choose('Select target',
                       _Model.getAllOfType(Input.name));

var target := UserInput.choose('Select Input',
                  Input.all);

Also I noticed that getAllOfAType is not included in the PDF of epsilon under EOL is there any way to find the list of these methods online?

Best, Nikos

[Updated on: Tue, 31 March 2015 01:49] by Moderator

Re: EVL - Getting the name of the file in which the model is stored [message #1690793 is a reply to message #1690759]

Tue, 31 March 2015 06:17

Eclipse User

Hi Niko,

.all is an alias for getAllOfKind()/allOfKind - which returns all instances of the type *and* any of its subtypes. getAllOfType()/allOfType returns all instances of the type only.

Cheers,
Dimitris

Re: EVL - Getting the name of the file in which the model is stored [message #1690848 is a reply to message #1690793]

Tue, 31 March 2015 11:18

Eclipse User

Thank you Dimitris!

Best, Nikos

[Updated on: Tue, 31 March 2015 15:56] by Moderator

Re: EVL - Getting the name of the file in which the model is stored [message #1690910 is a reply to message #1690848]

Tue, 31 March 2015 17:17

Eclipse User

Just giving out a solution in case anybody is interested.

operation YourElement getFileName() : String {
	return self.eResource().uri.trimFileExtension().toString().split("/").last();
}

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