Package fr.uga.pddl4j.problem.numeric

Class NumericConstraint

java.lang.Object

fr.uga.pddl4j.problem.numeric.AbstractNumericExpression

fr.uga.pddl4j.problem.numeric.NumericConstraint

All Implemented Interfaces:

NumericExpression, Serializable

public final class NumericConstraint
extends AbstractNumericExpression

This class implements a numeric constraint.

Since:

4.0

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
NumericConstraint(NumericComparator comparator, ArithmeticExpression left, ArithmeticExpression right)	Creates a new numeric constraints with a specified comparator, left and right expression.
NumericConstraint(NumericConstraint other)	Creates a deep copy of numeric constraints.

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object object)	Returns if a object is equal to this numeric constraint.
boolean	evaluate(List<NumericVariable> context)	Returns the result of the evaluation of the numeric constraint.
NumericComparator	getComparator()	Returns the comparator of the numeric constraint.
int	hashCode()	Returns the hash code value of this numeric constraint.
void	setComparator(NumericComparator comparator)	Sets the comparator of the numeric constraint.
String	toString()	Returns a string representation of this numeric constraints.

Methods inherited from class fr.uga.pddl4j.problem.numeric.AbstractNumericExpression

getLeftExpression, getRightExpression, setLeftExpression, setRightExpression

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

NumericConstraint

public NumericConstraint(NumericConstraint other)

Creates a deep copy of numeric constraints.

Parameters:

other - the numeric constraint to be copied.

NumericConstraint

public NumericConstraint(NumericComparator comparator,
 ArithmeticExpression left,
 ArithmeticExpression right)

Creates a new numeric constraints with a specified comparator, left and right expression. The numeric constraint is created with no specific time specifier.

Parameters:

comparator - the comparator the numeric constraint.

left - the left expression of the numeric constraint.

right - the right expression of the numeric constraint.

Method Details

getComparator

public final NumericComparator getComparator()

Returns the comparator of the numeric constraint.

Returns:

the comparator of the numeric constraint.

setComparator

public void setComparator(NumericComparator comparator)

Sets the comparator of the numeric constraint.

Parameters:

comparator - the comparator to set.

evaluate

public boolean evaluate(List<NumericVariable> context)

Returns the result of the evaluation of the numeric constraint.

Parameters:

context - the context of the evaluation, i.e., the numeric variables and their values needed to complete the evalution.

Returns:

true if the numeric constraint is evaluated to true; false otherwise.

equals

public boolean equals(Object object)

Returns if a object is equal to this numeric constraint. A object is equal to this numeric constraints iff the object is an instance of the class NumericConstraint and has the same comparator and left and right exprssion.

Overrides:

equals in class Object

Parameters:

object - the object to be compared.

Returns:

true if the object in parameter is equal to this numeric constraint; false otherwise.

hashCode

public int hashCode()

Returns the hash code value of this numeric constraint.

Overrides:

hashCode in class Object

Returns:

the hash code value of this numeric constraint.

toString

public String toString()

Returns a string representation of this numeric constraints.

Overrides:

toString in class Object

Returns:

a string representation of this numeric constraints.