Class PQueries


  • public final class PQueries
    extends java.lang.Object
    Utility class for using PQueries in functional/streaming collection operations effectively
    • Method Detail

      • queryStatusPredicate

        public static java.util.function.Predicate<PQuery> queryStatusPredicate​(PQuery.PQueryStatus status)
        Predicate checking for the status of selected queries
      • directlyReferencedQueriesFunction

        public static java.util.function.Function<PBody,​java.util.stream.Stream<PQuery>> directlyReferencedQueriesFunction()
        Enumerates referred queries (without duplicates) for the given body
      • directlyRequiredTypesOfQuery

        public static java.util.stream.Stream<IInputKey> directlyRequiredTypesOfQuery​(PQuery query,
                                                                                      boolean enumerablesOnly)
        Enumerates directly referred extensional relations (without duplicates) in the canonical form of the given query
        Parameters:
        enumerablesOnly - only enumerable type constraints are considered
        Since:
        2.0
      • directlyRequiredTypesOfDisjunction

        public static java.util.stream.Stream<IInputKey> directlyRequiredTypesOfDisjunction​(PDisjunction disjunctBodies,
                                                                                            boolean enumerablesOnly)
        Enumerates directly referred extensional relations (without duplicates) for the given formulation of a query.
        Parameters:
        enumerablesOnly - only enumerable type constraints are considered
        Since:
        2.0
      • parameterDirectionPredicate

        public static java.util.function.Predicate<PParameter> parameterDirectionPredicate​(PParameterDirection direction)
        Since:
        1.4
      • getTraceables

        public static java.util.Set<PTraceable> getTraceables​(PQuery query)
        Returns all PTraceables contained in the given PQuery: itself, its bodies and their constraints.
        Since:
        1.6
      • calculateSimpleName

        public static java.lang.String calculateSimpleName​(java.lang.String qualifiedName)
        Calculates the simple name related from a given qualified name by finding the part after the last '.' character.
        Since:
        2.0