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

Class LogarithmExpression

java.lang.Object

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

All Implemented Interfaces:

EvaluableExpression

public class LogarithmExpression
extends Object
implements EvaluableExpression

Expression that executes a logarithm with defined expressions as base and antilogarithm.

Field Summary

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

FALSE

Constructor Summary

Constructors

Constructor and Description
LogarithmExpression(EvaluableExpression base, EvaluableExpression antilogarithm) Builds an expression which returns the result of logarithm of antilogarithm to the base.

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	getAntilogarithm() Get the EvaluableExpression which is the antilogarithm, or parameter of the LogarithmExpression.
EvaluableExpression	getBase() Get the EvaluableExpression which is the base of the logarithm.
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

LogarithmExpression

public LogarithmExpression(EvaluableExpression base,
                           EvaluableExpression antilogarithm)

Builds an expression which returns the result of logarithm of antilogarithm to the base.

Parameters:

base - The base of the logarithm. Must not be null.

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

Method Detail

getBase

public EvaluableExpression getBase()

Get the EvaluableExpression which is the base of the logarithm.

Returns:

the base of the logarithm.

getAntilogarithm

public EvaluableExpression getAntilogarithm()

Get the EvaluableExpression which is the antilogarithm, or parameter of the LogarithmExpression.

Returns:

the antilogarithm expression.s

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