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Converting Integer to String [message #489564]

Sun, 04 October 2009 23:51

Derek Palma

Messages: 141
Registered: July 2009

Senior Member

Hi,

Is there a way to convert an Integer to a String? I am trying to get a
statement like 'Some Prefix: '.concat(someNumber) where some number is an
Integer. I could not find anything in the OCL spec that made me think this
was possible (looking at Integer, Real and OclAny). However, I am assuming I
missed it since most languages seem to have such a feature.

Thanks in advance.
Derek

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Re: Converting Integer to String [message #489571 is a reply to message #489564]

Mon, 05 October 2009 04:55

Ed Willink

Messages: 7655
Registered: July 2009

Senior Member

Hi Derek

The feature isa indeed missing OCL 2.0.

It is added in OCL 2.1, which should be supported in the next release of
MDT-OCL. String::+ is added as well.

For now you may need to write a helper function to recursively
concatenate digit by digit.

Regards

Ed Willink

Derek Palma wrote:
> Hi,
>
> Is there a way to convert an Integer to a String? I am trying to get a
> statement like 'Some Prefix: '.concat(someNumber) where some number is
> an Integer. I could not find anything in the OCL spec that made me think
> this was possible (looking at Integer, Real and OclAny). However, I am
> assuming I missed it since most languages seem to have such a feature.
>
> Thanks in advance.
> Derek

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Re: Converting Integer to String [message #489598 is a reply to message #489564]

Mon, 05 October 2009 08:34

Eclipse User

Originally posted by: dvorak.radek.gmail.com

Hi Derek,

The QVTO Stdlib defines Integer::toString() operation. The OMG spec does
define only
8.3.3.1 repr
Object::repr() : String
Prints a textual representation of the object.

Very informative about what to expect ;-)

We have included it to address backward compatibility issues and also
because the 09-05-02 OCL OMG spec draft adds this to the OCL Stdlib.

You can write your snippet like
var someNumber := 15;
var somePrefix := "pre_";
var concat := somePrefix + someNumber.toString();

Regards,
/Radek

On Mon, 05 Oct 2009 01:51:52 +0200, Derek Palma <derek.palma@gmail.com>
wrote:

> Hi,
>
> Is there a way to convert an Integer to a String? I am trying to get a
> statement like 'Some Prefix: '.concat(someNumber) where some number is
> an Integer. I could not find anything in the OCL spec that made me think
> this was possible (looking at Integer, Real and OclAny). However, I am
> assuming I missed it since most languages seem to have such a feature.
>
> Thanks in advance.
> Derek

Report message to a moderator

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