Package net.sf.tweety.action.query.syntax

Class QueryProposition

  • All Implemented Interfaces:
    Comparable<net.sf.tweety.logics.pl.syntax.Proposition>, net.sf.tweety.commons.Formula, net.sf.tweety.logics.commons.syntax.interfaces.Atom, net.sf.tweety.logics.commons.syntax.interfaces.ClassicalFormula, net.sf.tweety.logics.commons.syntax.interfaces.Conjunctable, net.sf.tweety.logics.commons.syntax.interfaces.Disjunctable, net.sf.tweety.logics.commons.syntax.interfaces.Invertable, net.sf.tweety.logics.commons.syntax.interfaces.ProbabilityAware, net.sf.tweety.logics.commons.syntax.interfaces.SimpleLogicalFormula
    Direct Known Subclasses:
    AlwaysQuery, HoldsQuery, NecessarilyQuery
    public abstract class QueryProposition
extends net.sf.tweety.logics.pl.syntax.Proposition
    Action queries are represented as propositional formulas with three possible types of propositions: holds, always and necessarily propositions. This class holds the common functionality of all these propositions.
    Author:
    Sebastian Homann

    • Nested Class Summary

      • Nested classes/interfaces inherited from interface net.sf.tweety.logics.commons.syntax.interfaces.Atom

        net.sf.tweety.logics.commons.syntax.interfaces.Atom.AtomImpl, net.sf.tweety.logics.commons.syntax.interfaces.Atom.RETURN_SET_PREDICATE

    • Field Summary

      Fields 
      Modifier and Type Field Description
      protected net.sf.tweety.logics.fol.syntax.FolFormula formula  

    • Constructor Summary

      Constructors 
      Constructor Description
      QueryProposition​(net.sf.tweety.logics.fol.syntax.FolFormula formula, String name)
      Creates a new query proposition with the given formula and a unique name, which is used by the base class.

    • Method Summary

      Modifier and Type Method Description
      ActionSignature getActionSignature()
      Returns a new action signature containing all symbols of the inner formula of this proposition.
      abstract Set<FolAction> getInnerActions()
      Returns the set of all actions contained in this query proposition.
      net.sf.tweety.logics.fol.syntax.FolFormula getInnerFormula()
      Returns the inner formula of this query proposition, e.g.
      abstract Set<net.sf.tweety.logics.commons.syntax.Variable> getVariables()
      Returns all variables occuring in inner formulas and actions of this query proposition.
      abstract QueryProposition substitute​(Map<? extends net.sf.tweety.logics.commons.syntax.interfaces.Term<?>,​? extends net.sf.tweety.logics.commons.syntax.interfaces.Term<?>> map)
      Returns a new query proposition of the same type, in which all variables in inner formulas and actions are replaced according to the given map.
      abstract String toString()  

      • Methods inherited from class net.sf.tweety.logics.pl.syntax.Proposition

        addArgument, clone, collapseAssociativeFormulas, compareTo, equals, getArguments, getAtoms, getLiterals, getModels, getName, getPredicate, getPredicates, getSignature, hashCode, isComplete, isLiteral, numberOfOccurrences, replace, setPredicate, toCnf, toNnf, trim

      • Methods inherited from class net.sf.tweety.logics.pl.syntax.PlFormula

        combineWithAnd, combineWithOr, complement, getModels, getPredicateCls, getPrimeImplicants, getUniformProbability, isClause, isConjunctiveClause, resolvableWith, resolveWith, toBlakeCanonicalForm, toDnf

      • Methods inherited from interface net.sf.tweety.logics.commons.syntax.interfaces.SimpleLogicalFormula

        getPredicateCls

    • Field Detail

      • formula

        protected net.sf.tweety.logics.fol.syntax.FolFormula formula

    • Constructor Detail

      • QueryProposition

        public QueryProposition​(net.sf.tweety.logics.fol.syntax.FolFormula formula,
                        String name)
        Creates a new query proposition with the given formula and a unique name, which is used by the base class.
        Parameters:
        formula - a state formula.
        name - a unique name.

    • Method Detail

      • getInnerFormula

        public net.sf.tweety.logics.fol.syntax.FolFormula getInnerFormula()
        Returns the inner formula of this query proposition, e.g. "F" in the case of a holds F proposition.
        Returns:
        the inner formula of this query proposition

      • getActionSignature

        public ActionSignature getActionSignature()
        Returns a new action signature containing all symbols of the inner formula of this proposition.
        Returns:
        a new action signature containing all symbols of the inner formula of this proposition.

      • getInnerActions

        public abstract Set<FolAction> getInnerActions()
        Returns the set of all actions contained in this query proposition. This is mainly a convenience function, as only necessarily propositions contain any actions.
        Returns:
        the set of all actions contained in this query proposition.

      • substitute

        public abstract QueryProposition substitute​(Map<? extends net.sf.tweety.logics.commons.syntax.interfaces.Term<?>,​? extends net.sf.tweety.logics.commons.syntax.interfaces.Term<?>> map)
        Returns a new query proposition of the same type, in which all variables in inner formulas and actions are replaced according to the given map.
        Parameters:
        map - a map from variables to constants.
        Returns:
        a new query proposition.

      • toString

        public abstract String toString()
        Overrides:
        toString in class net.sf.tweety.logics.pl.syntax.Proposition

      • getVariables

        public abstract Set<net.sf.tweety.logics.commons.syntax.Variable> getVariables()
        Returns all variables occuring in inner formulas and actions of this query proposition.
        Returns:
        all variables occuring in inner formulas and actions of this query proposition.