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[Acceleo] Error Getting Attributes with Specific Stereotypes [message #1232597]

Fri, 17 January 2014 04:53

Eclipse User

Dear all,
Supposed I have a class Account in UML Class Diagram with 4 attributes: Integer fee, <<aParam>> Integer amount, <<aParam>> Integer balance, Integer id.

I would like to get the class name and its attributes with stereotypes <<aParam>>.

Here is my Acceleo transformation code:

class [aClass.name/] ([for (att: Property | aClass.getAllAttributes()) separator (',')]
[for (s: Stereotype | att.getAppliedStereotypes()) ? (s.name='aParam')]
[att.type.name/] [att.name/] [/for][/for]);

I hope the output is:
class Account (Integer amount, Integer balance);

but the current output is:
class Account (,,Integer amount,,Integer balance);

Based on the current output, at first it seems that all attributes was retrieved. Then when there is a condition that only attributes with stereotypes 'aParam' that should be retrieved, the attributes without stereotypes 'aParam' is deleted. Therefore, there is still space in the output with empty string (indicated by the comma separator).

Any idea how to solve this problem?

Regards,
Maya

Re: [Acceleo] Error Getting Attributes with Specific Stereotypes [message #1232725 is a reply to message #1232597]

Fri, 17 January 2014 10:17

Eclipse User

Hello,

This behaviour occurs because the attribute loop occurs even if the stereotype is not applied on the attribute.
You should filter in the first loop only attributes that hold the stereotype :

class [aClass.name/] ([for (att: Property | aClass.getAllAttributes()->select(getAppliedStereotypes()->contains(s: Stereotype |s.name='aParam'))) separator (',')]
[att.type.name/] [att.name/] [/for]);

I didn't test that piece of code but it should be close to what you actually need.

Regards

[Updated on: Fri, 17 January 2014 10:18] by Moderator

Re: [Acceleo] Error Getting Attributes with Specific Stereotypes [message #1233655 is a reply to message #1232725]

Mon, 20 January 2014 02:52

Eclipse User

Thanks for the response.
Yap, the solution above is close to my need,
but when I tried the code, there was syntax error like this:
Incomplete iterator expression: (temp1.""()->contains(s:""| s."".""('aParam'))).

I attempted to solve the error, but I couldn't get an appropriate result.

anyone can help me to solve the problem?

Regards,
Maya

Re: [Acceleo] Error Getting Attributes with Specific Stereotypes [message #1233883 is a reply to message #1233655]

Mon, 20 January 2014 13:37

Eclipse User

Hello,

There was actally a mistake in my (not tested) code.
This one should be better :

class [aClass.name/] ([for (att: Property | aClass.getAllAttributes()->select(getAppliedStereotypes()->exists(s: Stereotype |s.name='aParam'))) separator (',')]
[att.type.name/] [att.name/] [/for]);

Re: [Acceleo] Error Getting Attributes with Specific Stereotypes [message #1234037 is a reply to message #1233883]

Mon, 20 January 2014 23:38

Eclipse User

Thanks for your help,
the output is correct now.

Regards,
Maya

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