de.uka.ipd.sdq.beagle.core.evaluableexpressions

Class SubtractionExpression

java.lang.Object

de.uka.ipd.sdq.beagle.core.evaluableexpressions.SubtractionExpression

All Implemented Interfaces:

EvaluableExpression

public class SubtractionExpression
extends Object
implements EvaluableExpression

Expression that subtracts a subtrahend from a minuend.

Field Summary

Fields inherited from interface de.uka.ipd.sdq.beagle.core.evaluableexpressions.EvaluableExpression

FALSE

Constructor Summary

Constructors

Constructor and Description
SubtractionExpression(EvaluableExpression minuend, EvaluableExpression subtrahend) Builds an expression which returns the difference of subtrahend and minuend.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object object)
double	evaluate(EvaluableVariableAssignment variableAssignments) Calculates this expression’s value for the given variableAssignments.
EvaluableExpression	getMinuend() Get the EvaluableExpression which is the minuend.
EvaluableExpression	getSubtrahend() Get the EvaluableExpression which is the subtrahend.
int	hashCode()
void	receive(EvaluableExpressionVisitor visitor) Calls the appropriate overload of EvaluableExpressionVisitor.visit(de.uka.ipd.sdq.beagle.core.evaluableexpressions.AdditionExpression) on visitor.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

SubtractionExpression

public SubtractionExpression(EvaluableExpression minuend,
                             EvaluableExpression subtrahend)

Builds an expression which returns the difference of subtrahend and minuend.

Parameters:

subtrahend - The subtrahend of the expression. Must not be null.

minuend - The minuend of the expression. Must not be null.

Method Detail

getSubtrahend

public EvaluableExpression getSubtrahend()

Get the EvaluableExpression which is the subtrahend.

Returns:

This expression's subtrahend.

getMinuend

public EvaluableExpression getMinuend()

Get the EvaluableExpression which is the minuend.

Returns:

This expression's minuend.

receive

public void receive(EvaluableExpressionVisitor visitor)

Description copied from interface: EvaluableExpression

Calls the appropriate overload of EvaluableExpressionVisitor.visit(de.uka.ipd.sdq.beagle.core.evaluableexpressions.AdditionExpression) on visitor. This implements the well-known visitor pattern.

Specified by:

receive in interface EvaluableExpression

Parameters:

visitor - The visitor wishing to visit this expression.

evaluate

public double evaluate(EvaluableVariableAssignment variableAssignments)

Description copied from interface: EvaluableExpression

Calculates this expression’s value for the given variableAssignments.

Specified by:

evaluate in interface EvaluableExpression

Parameters:

variableAssignments - must assign a value to at least all EvaluableVariables contained in this expression.

Returns:

the value for the given assignments.

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object object)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object