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changes.mady.by.user Richard Marshall

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  • more complex compound expressions where the logically inverse criterion is more difficult to express, or
  • compound expressions in which sub-clauses subclauses are referenced by identifier values (as described in the AnalysisSet and GroupingFactor sections).
Xfancy
classrowcaps
Lines 1-5:

Show the attributes of the DataSubset specialization of the WhereClause class:

  • level is assigned as "1" because this is the "top" level of the specification of the selection criterion.
  • order is "1" because level is "1" and this is not a specialization of the Group class.
  • The presence of the compoundExpression attribute indicates that a compound expression is being defined.
Lines 6-7:

Show the attributes of an instance of the CompoundSubsetExpression specialization of the WhereClauseCompoundExpression class (because this is a compound expression within a DataSubset class):

  • The value of the logicalOperator attribute is "NOT", which indicates that the sub-clause subclause specified in the whereClauses attribute is being negated.
  • The whereClause attribute contains a single sub-clausesubclause, which is another compound expression represented as an instance of the WhereClause class (because this is a sub-clause subclause within a CompoundSubsetExpression class) with "2" as the value of the level attribute (1 greater than the level of the DataSubset class specifying this compound expression). The value of the order attribute is "1" because this is the first (and only) sub-clause subclause within this level.
Lines 11-12:

Show the attributes of an instance of the WhereClauseCompoundExpression class (because this is a compound expression within a WhereClause class):

  • The value of the logicalOperator attribute is "OR" which indicates that either of the sub-clauses subclauses specified in the whereClauses attribute has to be satisfied.
  • The whereClause attribute contains 2 sub-clausessubclauses, both of which are simple conditions represented as instances of the WhereClause class (because these are sub-clauses subclauses within a WhereClauseCompoundExpression class) with "3" as the value of the level attribute (1 greater than the level of the WhereClause class specifying this compound expression). The values of the order attribute are "1" and "2" to order the sub-clauses subclauses within this level.
Code Block
titleYAML Example
linenumberstrue
id: DSS-EXMPL-NOT
label: Example flag is not missing or N
level: 1
order: 1
compoundExpression:
  logicalOperator: NOT
  whereClauses:
  - level: 2
    order: 1
    compoundExpression:
      logicalOperator: OR
      whereClauses:
      - level: 3
        order: 1
        condition:
          dataset: ADVS
          variable: EXMPLFL
          comparator: EQ
          value:
      - level: 3
        order: 2
        condition:
          dataset: ADVS
          variable: EXMPLFL
          comparator: EQ
          value:
          - N

...

  • Each instance of the WhereClause class (and its DataSubset specialization) is represented on a separate row.
  • The values of the id and label attributes of the DataSubset class have be propagated onto all rows representing sub-clauses subclauses within the defined data subset.

...