OCLOperators collectNested
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=== collectNested ( expr : OclExpression ) : Collection(T2) === | === collectNested ( expr : OclExpression ) : Collection(T2) === | ||
Returns a collection containing all the elements contained in self on which we applied the OclExpression expr. The results won't be flattened. The type of the resulting collection depends on the type of self. | Returns a collection containing all the elements contained in self on which we applied the OclExpression expr. The results won't be flattened. The type of the resulting collection depends on the type of self. | ||
Revision as of 22:24, 16 June 2024
This page was created by Stephanie on 2023-03-27. Last edited by Edgar on 2025-01-20.
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collectNested ( expr : OclExpression ) : Collection(T2)
Returns a collection containing all the elements contained in self on which we applied the OclExpression expr. The results won't be flattened. The type of the resulting collection depends on the type of self.
For the purpose of this example, we'll assume here that we have a Class Person with a reference children. Our model contains two persons such as person1.children = {James, Jane} and person2.children = {John}.
| Expression | Result |
|---|---|
| self.persons->collectNested(children.firstname) | Sequence{Sequence{James, Jane}, Sequence{John}} |