UML 1.4 NO IDEA Avatar
  1. OMG Issue

UML14 — OCL: Literal collections

Open Closed All
  • Key: UML14-973
  • Legacy Issue Number: 3144
  • Status: closed  
  • Source: OpenModeling ( Jos Warmer)
  • Summary:

    Currently, the syntax for the literal collection allows either a single
    range of values, or a list of individual values:

    literalCollection := collectionKind "

    {" expressionListOrRange? "}

    "

    expressionListOrRange := expression
    ( ( "," expression )+

    ( ".." expression ) )?

    This is too complicated a rule for what could have been
    made much simpler:

    literalCollection := collectionKind "

    {" (collectionItem ("," collectionItem )+)? "}

    "

    collectionItem := expression ( ".." expression )?

    Which would also allow more general types of literal collections,
    like in:

    Set

    { 0..2, 3, 4, 5..15 }

    And is just as easy to parse.

    Proposed resolution:

    This is more generic and should be includes in the OCL grammar.
    grammar is ok.
  • Reported: UML 1.2 — Fri, 17 Dec 1999 05:00 GMT
  • Disposition: Resolved — UML 1.3
  • Disposition Summary:

    No Data Available
  • Updated: Fri, 6 Mar 2015 21:37 GMT