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  1. OMG Issue

UMLR — Derived union property values cannot change after initialization

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  • Key: UMLR-815
  • Status: open  
  • Source: NIST ( Mr. Conrad Bock)
  • Summary:

    [from Mr. Nerijus Jankevicius] Clause 9.9.21.5 (Attributes of StructuralFeature) describes isReadOnly as

    isReadOnly : Boolean [1..1] = false
    If isReadOnly is true, the StructuralFeature may not be written to after initialization.

    and 9.9.17.8 (Constraints on Property) includes

    derived_union_is_read_only
    A derived union is read only.
    inv: isDerivedUnion implies isReadOnly

    preventing properties from changing values (after initialization) when they subset a derived union.
  • Reported: UML 2.5.1 — Thu, 26 Oct 2023 15:03 GMT
  • Updated: Mon, 30 Oct 2023 19:12 GMT