130 lines
2.9 KiB
130 lines
2.9 KiB
/*
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* Next.h
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*
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* Created on: 26.12.2012
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* Author: Christian Dehnert
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*/
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#ifndef STORM_FORMULA_REACHABILITYREWARD_H_
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#define STORM_FORMULA_REACHABILITYREWARD_H_
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#include "AbstractPathFormula.h"
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#include "AbstractStateFormula.h"
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namespace storm {
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namespace formula {
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template <class T> class ReachabilityReward;
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template <class T>
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class IReachabilityRewardModelChecker {
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public:
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virtual std::vector<T>* checkReachabilityReward(const ReachabilityReward<T>& obj) const = 0;
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};
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/*!
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* @brief
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* Class for a Abstract (path) formula tree with an Reachability Reward node as root.
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*
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* Has one Abstract state formula as sub formula/tree.
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*
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* The subtree is seen as part of the object and deleted with the object
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* (this behavior can be prevented by setting them to nullptr before deletion)
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*
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* @see AbstractPathFormula
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* @see AbstractFormula
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*/
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template <class T>
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class ReachabilityReward : public AbstractPathFormula<T> {
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public:
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/*!
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* Empty constructor
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*/
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ReachabilityReward() {
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this->child = nullptr;
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}
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/*!
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* Constructor
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*
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* @param child The child node
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*/
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ReachabilityReward(AbstractStateFormula<T>* child) {
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this->child = child;
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}
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/*!
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* Constructor.
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*
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* Also deletes the subtree.
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* (this behaviour can be prevented by setting the subtrees to nullptr before deletion)
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*/
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virtual ~ReachabilityReward() {
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if (child != nullptr) {
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delete child;
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}
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}
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/*!
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* @returns the child node
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*/
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const AbstractStateFormula<T>& getChild() const {
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return *child;
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}
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/*!
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* Sets the subtree
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* @param child the new child node
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*/
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void setChild(AbstractStateFormula<T>* child) {
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this->child = child;
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}
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/*!
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* @returns a string representation of the formula
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*/
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virtual std::string toString() const {
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std::string result = "F ";
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result += child->toString();
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return result;
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}
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/*!
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* Clones the called object.
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*
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* Performs a "deep copy", i.e. the subtrees of the new object are clones of the original ones
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*
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* @returns a new ReachabilityReward-object that is identical the called object.
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*/
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virtual AbstractPathFormula<T>* clone() const {
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ReachabilityReward<T>* result = new ReachabilityReward<T>();
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if (child != nullptr) {
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result->setChild(child);
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}
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return result;
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}
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/*!
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* Calls the model checker to check this formula.
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* Needed to infer the correct type of formula class.
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*
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* @note This function should only be called in a generic check function of a model checker class. For other uses,
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* the methods of the model checker should be used.
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*
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* @returns A vector indicating the probability that the formula holds for each state.
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*/
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virtual std::vector<T> *check(const IReachabilityRewardModelChecker<T>& modelChecker) const {
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return modelChecker.checkReachabilityReward(*this);
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}
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private:
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AbstractStateFormula<T>* child;
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};
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} //namespace formula
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} //namespace storm
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#endif /* STORM_FORMULA_REACHABILITYREWARD_H_ */
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