ClassFromString
(Created page with "When going meta it is sometimes interesting to treat your system types as strings – and then be able to treat those strings as types again. If you have a type you use the o...") |
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When going meta it is sometimes interesting to treat your system types as strings – and then | When going meta, it is sometimes interesting to treat your system types as strings – and then treat those strings as types again. | ||
If you have a type | If you have a type, use the operator AsString to treat it as a string. | ||
Until now there was no way to go from a string back to a type. Now there is : '''ClassFromString'''. | Until now, there was no way to go from a string back to a type. Now there is: '''ClassFromString'''. | ||
Consider this model: | Consider this model: | ||
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I had the requirement to list all the subclasses except the purple ones… | I had the requirement to list all the subclasses except the purple ones… | ||
I added a tagged value to the purple and then | I added a tagged value to the purple and then did this: | ||
ComponentSpecification.allSubClasses->select(x|x.ClassFromString.TaggedValue(‘TypeSort’)<>’SKIPTHIS’) | ComponentSpecification.allSubClasses->select(x|x.ClassFromString.TaggedValue(‘TypeSort’)<>’SKIPTHIS’) | ||
The result is a collection of strings with the selected subclasses. | |||
[[Category:OCL]] | [[Category:OCL]] | ||
[[Category:Operators]] | [[Category:Operators]] | ||
[[Category:OCLOperators]] | [[Category:OCLOperators]] | ||
Revision as of 07:28, 27 February 2023
When going meta, it is sometimes interesting to treat your system types as strings – and then treat those strings as types again.
If you have a type, use the operator AsString to treat it as a string.
Until now, there was no way to go from a string back to a type. Now there is: ClassFromString.
Consider this model:
I had the requirement to list all the subclasses except the purple ones…
I added a tagged value to the purple and then did this:
ComponentSpecification.allSubClasses->select(x|x.ClassFromString.TaggedValue(‘TypeSort’)<>’SKIPTHIS’)
The result is a collection of strings with the selected subclasses.
This page was edited 93 days ago on 02/10/2024. What links here