Display attribute constraint

[Honza]

Please, can you tell me, how to show an constraint of attribute on a diagram?
e.g. I have Class1, with attribute Size, and defined constraint to the attribute {Size <= 12}
I can define it, but I cannot see it on a diagram.

Thank you

[«Midnight»]

Look up Note, Link to Element Feature in the EA Help index.

[Jan ´Bary´ Glas]

Look up Note, Link to Element Feature in the EA Help index.

Does it really work for attribute constraints? I thought it worked for element constraints only. :-/

[thomas.kilian]

Yes Jan (Hi again). It only works for responsibilities and constraints on class level. Not for attributes.

Btw. How does Superstructures denote constraints on attribute level? Simply inside curly brackets?

[«Midnight»]

Right guys... I was hoping they'd repair this in 7.1. This is a big relief, since now I don't have to keep living without hope...  

You can do the old 'attach note to link' trick and turn the note into a constraint. Unfortunately this does not seem to work with features or elements, but only links.

On the whole it might be better to design constraint-free systems. After all they're software; they were going to have bugs anyway.

One thing I can think of to make this easier to deal with (one is for you Hanza):   [smiley=beer.gif] [smiley=beer.gif]

[Jan ´Bary´ Glas]

Honzo,

as a workaround you may model you attribute outside the class as another class with regular constraints on association or class.

But in fact this is so unreadable that it is better not to listen to me :-D it is nearly midnight here in Prague.

Honza Glas

(for non-Czech speakers "Honza" is a familiar version of "Jan")

[Honza]

Hi guys,
thank you for your attention. I hope Sparx will correct this ASAP and we can drink more instead to think up this workarounds.

My solution is:
I need to define a class as a parameter of some web service. Some attributes of the class have to be defined as mandatory.
So I stereotyped the class as <<table>>. At this moment you can set some attributes (columns) as Not null, that you can see in a diagram.
It looks very strange to see Parameter of Web service as Table, but it works. :-)

For Jan Glas> Díky Honzo, navrhuji ud[ch283]lat na KC n[ch283]jakou sekci workaround[ch367] (nejen v EA). Honza F. :-)

[Jan ´Bary´ Glas]

For Jan Glas> Díky Honzo, navrhuji ud[ch283]lat na KC n[ch283]jakou sekci workaround[ch367] (nejen v EA). Honza F. :-)

Private message would do better.