Package org.jacop.constraints

Class Member

java.lang.Object
org.jacop.constraints.DecomposedConstraint<Constraint>
org.jacop.constraints.Constraint
org.jacop.constraints.PrimitiveConstraint
org.jacop.constraints.Member
All Implemented Interfaces:
SatisfiedPresent, StoreAware
public class Member extends PrimitiveConstraint
Member constraint implements the membership of element e on list x.
Version:
4.10

  • Field Details

    • store

      Store store

    • idNumber

      static AtomicInteger idNumber

    • reified

      boolean reified

    • x

      IntVar[] x
      It specifies a list of variables being summed.

    • e

      IntVar e
      It specifies variable for the overall sum.

    • l

      int l
      It specifies the number of variables on the list.

    • position

      private TimeStamp<Integer> position

  • Constructor Details

    • Member

      public Member(IntVar[] list, IntVar e)
      Parameters:
      list - list of variables.
      e - variable to be checkd on the list.

    • Member

      public Member(List<? extends IntVar> list, IntVar e)
      It constructs the constraint Member.
      Parameters:
      list - list of variables.
      e - variable to be checkd on the list.

  • Method Details

    • consistency

      public void consistency(Store store)
      Description copied from class: Constraint
      It is a (most probably incomplete) consistency function which removes the values from variables domains. Only values which do not have any support in a solution space are removed.
      Specified by:
      consistency in class Constraint
      Parameters:
      store - constraint store within which the constraint consistency is being checked.

    • notConsistency

      public void notConsistency(Store store)
      Description copied from class: PrimitiveConstraint
      It makes pruning in such a way that constraint is notConsistent. It removes values which always belong to a solution.
      Specified by:
      notConsistency in class PrimitiveConstraint
      Parameters:
      store - the constraint store in which context the notConsistency technique is evaluated.

    • swap

      private void swap(int i, int j)

    • getDefaultConsistencyPruningEvent

      public int getDefaultConsistencyPruningEvent()
      Specified by:
      getDefaultConsistencyPruningEvent in class Constraint

    • getDefaultNestedConsistencyPruningEvent

      protected int getDefaultNestedConsistencyPruningEvent()
      Overrides:
      getDefaultNestedConsistencyPruningEvent in class PrimitiveConstraint

    • getDefaultNestedNotConsistencyPruningEvent

      protected int getDefaultNestedNotConsistencyPruningEvent()
      Overrides:
      getDefaultNestedNotConsistencyPruningEvent in class PrimitiveConstraint

    • getDefaultNotConsistencyPruningEvent

      protected int getDefaultNotConsistencyPruningEvent()
      Specified by:
      getDefaultNotConsistencyPruningEvent in class PrimitiveConstraint

    • include

      public void include(Store store)
      Description copied from interface: StoreAware
      It provide store for constraints that are not imposed but called from other constraints.
      Specified by:
      include in interface StoreAware
      Overrides:
      include in class PrimitiveConstraint
      Parameters:
      store - the constraint store in which context the constraint is executed.

    • impose

      public void impose(Store store)
      Description copied from class: Constraint
      It imposes the constraint in a given store.
      Overrides:
      impose in class PrimitiveConstraint
      Parameters:
      store - the constraint store to which the constraint is imposed to.

    • satisfied

      public boolean satisfied()
      Description copied from interface: SatisfiedPresent
      It checks if the constraint is satisfied. It can return false even if constraint is satisfied but not all variables in its scope are grounded. It needs to return true if all variables in its scope are grounded and constraint is satisfied.

      Implementations of this interface for constraints that are not PrimitiveConstraint may require constraint imposition and consistency check as a requirement to work correctly.

      Returns:
      true if constraint is possible to verify that it is satisfied.

    • notSatisfied

      public boolean notSatisfied()
      Description copied from class: PrimitiveConstraint
      It checks if constraint would be always not satisfied.
      Specified by:
      notSatisfied in class PrimitiveConstraint
      Returns:
      true if constraint must be notSatisfied, false otherwise.

    • toString

      public String toString()
      Description copied from class: Constraint
      It produces a string representation of a constraint state.
      Overrides:
      toString in class Constraint