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

Class ConstantExpression

java.lang.Object

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

All Implemented Interfaces:

EvaluableExpression

public final class ConstantExpression
extends Object
implements EvaluableExpression

An EvaluableExpression having a constant value.

Field Summary

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

FALSE

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.
static ConstantExpression	forValue(double value) Looks for the constant expression belonging to an input value.
double	getValue() Gets the value of this constant expression.
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

Method Detail

getValue

public double getValue()

Gets the value of this constant expression.

Returns:

The value mapped to the constant expression.

forValue

public static ConstantExpression forValue(double value)

Looks for the constant expression belonging to an input value.

Parameters:

value - The value whose expression should be returned.

Returns:

The constant expression belonging to the given value.

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