Messages

1

General Board / Re: Show/copy relationships

« on: April 13, 2007, 04:35:33 am »

I don't think this is what Adam is after.

My guess he's looking for a way to instantiate an association. Like you instantiate an object from a class.

As Jan Glas says, there seems to be no way of doing that with EA. From the user interface I have drawn the conclusion that instantiating an object from a class also was impossible and someone made that possible through special case operation. E.g. why can't change the class of an object? Not even from <null> to SomeClass?
The EA's meta model seems not to support this easily.

I have further more not found a way to show values for attribute(-instances) for the objects.

These problems makes it hard to make "story boards" with EA.

2

General Board / Re: Show/copy relationships

« on: April 13, 2007, 02:02:49 am »

I don't think this is what Adam is after.

My guess he's looking for a way to instantiate an association. Like you instantiate an object from a class.

As Jan Glas says, there seems to be no way of doing that with EA. From the user interface I have drawn the conclusion that instantiating an object from a class also was impossible and someone made that possible through special case operation. E.g. why can't change the class of an object? Not even from <null> to SomeClass?
The EA's meta model seems not to support this easily.

I have further more not found a way to show values for attribute(-instances) for the objects.

These problems makes it hard to make "story boards" with EA.

3

General Board / Re: Show/copy relationships

« on: April 13, 2007, 01:58:52 am »

I don't think this is what Adam is after.

My guess he's looking for a way to instanciate an association. Like you instanciate an object from a class.

As Jan Glas says, there seems to be no way of doing that with EA. From the interface I have drawn the conclusion that instanciating an object from a class also was impossible and someone made that possible through special case operation. E.g. why can't change the class of an object? Not even from <null> to SomeClass?

I have further more not found a way to show values for attribute(-instances) for the objects.

These problems makes it hard to make "story boards" with EA.

4

General Board / Re: Show/copy relationships

« on: April 13, 2007, 01:58:35 am »

I don't think this is what Adam is after.

My guess he's looking for a way to instanciate an association. Like you instanciate an object from a class.

As Jan Glas says, there seems to be no way of doing that with EA. From the interface I have drawn the conclusion that instanciating an object from a class also was impossible and someone made that possible through special case operation. E.g. why can't change the class of an object? Not even from <null> to SomeClass?

I have further more not found a way to show values for attribute(-instances) for the objects.

These problems makes it hard to make "story boards" with EA.

5

General Board / Instance of an Association

« on: December 05, 2005, 05:48:23 am »

Hi,

I have two classes "A" and "B" and and association between them "AB". I then create instances for the classes a:A and b:B.

How do I make a link that is an instance of the association AB between two objects?

I took a while to find how to make an instance connected to a class but here I can't find anything  .

The ultimate goal is to draw story boards with snapshots of the state of the system.