Package org.jacop.constraints.regular

Class RegStateDom

  • public class RegStateDom
extends RegState
    It is a state representation which uses a domain representation to represent all integers which can transition from this state to the given successor state.
    Version:
    4.8

    • Constructor Summary

      Constructors 
      Constructor Description
      RegStateDom​(int level, int id, int sucNumber, int posInArray)
      It constructs a state.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void add​(IntDomain varDom, int successorNo)
      It adds to domain values which are accepted by a given edge.
      void addTransition​(RegState suc, java.lang.Integer val)
      It specifies that for a given value an automata will move from the current state to the successor state.
      void addTransitions​(RegState suc, IntervalDomain val)
      It specifies that for a given values from an interval an automata will move from the current state to the successor state.
      boolean intersects​(IntDomain dom, int successorNo)
      It checks if the accepting values associated with an edge intersect.
      boolean isActive​(TimeStamp<java.lang.Integer>[] activeLevels)
      The function return if the state is still active.
      void removeTransition​(int pos)
      It informs the state that the edge on the given position is no longer active.
      void setSupports​(java.util.Map<java.lang.Integer,​RegEdge> hashMap, int i)  
      java.lang.String sucDomToString​(int successorNo)  
      boolean updateSupport​(RegEdge edge, int v)
      It updates a support if given state supports given value.

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Constructor Detail

      • RegStateDom

        public RegStateDom​(int level,
                   int id,
                   int sucNumber,
                   int posInArray)
        It constructs a state.
        Parameters:
        level - the position of the associated variable with the state.
        id - the state id.
        sucNumber - the number of successors for this state.
        posInArray - the position within a states array for the level of this state.

    • Method Detail

      • isActive

        public boolean isActive​(TimeStamp<java.lang.Integer>[] activeLevels)
        Description copied from class: RegState
        The function return if the state is still active. It depends on how many active levels remains for state level and the position of the state.
        Specified by:
        isActive in class RegState
        Parameters:
        activeLevels - -
        Returns:
        true is the state is still active.

      • removeTransition

        public void removeTransition​(int pos)
        Description copied from class: RegState
        It informs the state that the edge on the given position is no longer active.
        Specified by:
        removeTransition in class RegState
        Parameters:
        pos - position of the edge.

      • addTransition

        public void addTransition​(RegState suc,
                          java.lang.Integer val)
        Description copied from class: RegState
        It specifies that for a given value an automata will move from the current state to the successor state.
        Specified by:
        addTransition in class RegState
        Parameters:
        suc - successor state
        val - an accepting value

      • addTransitions

        public void addTransitions​(RegState suc,
                           IntervalDomain val)
        Description copied from class: RegState
        It specifies that for a given values from an interval an automata will move from the current state to the successor state.
        Specified by:
        addTransitions in class RegState
        Parameters:
        suc - successor state
        val - interval of accepting values.

      • intersects

        public boolean intersects​(IntDomain dom,
                          int successorNo)
        Description copied from class: RegState
        It checks if the accepting values associated with an edge intersect.
        Specified by:
        intersects in class RegState
        Parameters:
        dom - domain against which interesection is performed.
        successorNo - a position of the edge.
        Returns:
        true if at least one value associated with an edge intersects with domain.

      • setSupports

        public void setSupports​(java.util.Map<java.lang.Integer,​RegEdge> hashMap,
                        int i)
        Specified by:
        setSupports in class RegState
        Parameters:
        hashMap - It contains supports for all values of a given variable.
        i - it specifies the edge position.

      • sucDomToString

        public java.lang.String sucDomToString​(int successorNo)
        Specified by:
        sucDomToString in class RegState
        Parameters:
        successorNo - - edge position.
        Returns:
        It return the string representation of the values accepted by specified edge.

      • add

        public void add​(IntDomain varDom,
                int successorNo)
        Description copied from class: RegState
        It adds to domain values which are accepted by a given edge.
        Specified by:
        add in class RegState
        Parameters:
        varDom - - domain collecting suported values.
        successorNo - - position of an edge from which values are collected.

      • updateSupport

        public boolean updateSupport​(RegEdge edge,
                             int v)
        Description copied from class: RegState
        It updates a support if given state supports given value.
        Specified by:
        updateSupport in class RegState
        Parameters:
        edge - information about support is stored here.
        v - value for which support is looked for.
        Returns:
        It returns true if state has an edge which supports given value.