Package com.google.ortools.constraintsolver

Class IntExpr

java.lang.Object
com.google.ortools.constraintsolver.BaseObject
com.google.ortools.constraintsolver.PropagationBaseObject
com.google.ortools.constraintsolver.IntExpr
Direct Known Subclasses:
BaseIntExpr, IntVar
public class IntExpr
extends PropagationBaseObject
The class IntExpr is the base of all integer expressions in
constraint programming.
It contains the basic protocol for an expression:
- setting and modifying its bound
- querying if it is bound
- listening to events modifying its bounds
- casting it into a variable (instance of IntVar)

  • Field Summary

    Fields inherited from class com.google.ortools.constraintsolver.BaseObject

    swigCMemOwn

  • Constructor Summary

    Constructors
    Modifier Constructor Description
    protected IntExpr​(long cPtr, boolean cMemoryOwn)  

  • Method Summary

    Modifier and Type Method Description
    void accept​(ModelVisitor visitor)
    Accepts the given visitor.
    boolean bound()
    Returns true if the min and the max of the expression are equal.
    void delete()  
    protected void finalize()  
    protected static long getCPtr​(IntExpr obj)  
    boolean isVar()
    Returns true if the expression is indeed a variable.
    long max()  
    long min()  
    void range​(int[] l, int[] u)
    By default calls Min() and Max(), but can be redefined when Min and Max
    code can be factorized.
    void setMax​(long m)  
    void setMin​(long m)  
    void setRange​(long l, long u)
    This method sets both the min and the max of the expression.
    void setValue​(long v)
    This method sets the value of the expression.
    IntVar var()
    Creates a variable from the expression.
    IntVar varWithName​(java.lang.String name)
    Creates a variable from the expression and set the name of the
    resulting var.
    void whenRange​(Demon d)
    Attach a demon that will watch the min or the max of the expression.
    void whenRange​(java.lang.Runnable closure)
    Attach a demon that will watch the min or the max of the expression.

    Methods inherited from class com.google.ortools.constraintsolver.PropagationBaseObject

    baseName, enqueueDelayedDemon, enqueueVar, freezeQueue, getCPtr, hasName, name, reset_action_on_fail, set_variable_to_clean_on_fail, setName, solver, toString, unfreezeQueue

    Methods inherited from class com.google.ortools.constraintsolver.BaseObject

    getCPtr

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • IntExpr

      protected IntExpr​(long cPtr, boolean cMemoryOwn)

  • Method Details

    • getCPtr

      protected static long getCPtr​(IntExpr obj)

    • finalize

      protected void finalize()
      Overrides:
      finalize in class PropagationBaseObject

    • delete

      public void delete()
      Overrides:
      delete in class PropagationBaseObject

    • min

      public long min()

    • setMin

      public void setMin​(long m)

    • max

      public long max()

    • setMax

      public void setMax​(long m)

    • range

      public void range​(int[] l, int[] u)
      By default calls Min() and Max(), but can be redefined when Min and Max
      code can be factorized.

    • setRange

      public void setRange​(long l, long u)
      This method sets both the min and the max of the expression.

    • setValue

      public void setValue​(long v)
      This method sets the value of the expression.

    • bound

      public boolean bound()
      Returns true if the min and the max of the expression are equal.

    • isVar

      public boolean isVar()
      Returns true if the expression is indeed a variable.

    • var

      public IntVar var()
      Creates a variable from the expression.

    • varWithName

      public IntVar varWithName​(java.lang.String name)
      Creates a variable from the expression and set the name of the
      resulting var. If the expression is already a variable, then it
      will set the name of the expression, possibly overwriting it.
      This is just a shortcut to Var() followed by set_name().

    • whenRange

      public void whenRange​(Demon d)
      Attach a demon that will watch the min or the max of the expression.

    • whenRange

      public void whenRange​(java.lang.Runnable closure)
      Attach a demon that will watch the min or the max of the expression.

    • accept

      public void accept​(ModelVisitor visitor)
      Accepts the given visitor.