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

Class ComparisonExpression

java.lang.Object

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

All Implemented Interfaces:

EvaluableExpression

public class ComparisonExpression
extends Object
implements EvaluableExpression

Expression that compares both its contained expressions.

Field Summary

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

FALSE

Constructor Summary

Constructors

Constructor and Description
ComparisonExpression(EvaluableExpression smaller, EvaluableExpression greater) Builds an expression that will return '1' if the expression set as smaller is smaller and '0' else.

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	getGreater() Get the EvaluableExpression which is supposed to be the greater one in the comparison.
EvaluableExpression	getSmaller() Get the EvaluableExpression which is supposed to be the smaller one in the comparison.
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

ComparisonExpression

public ComparisonExpression(EvaluableExpression smaller,
                            EvaluableExpression greater)

Builds an expression that will return '1' if the expression set as smaller is smaller and '0' else.

Parameters:

smaller - The EvaluableExpression which is supposed to be the smaller one in the comparison.

greater - The EvaluableExpression which is supposed to be the greater one in the comparison.

Method Detail

getGreater

public EvaluableExpression getGreater()

Get the EvaluableExpression which is supposed to be the greater one in the comparison.

For example: if e1 < e2 should be expressed, e1 is set as smaller and e2 as greater expression.

Returns:

the greater expression

getSmaller

public EvaluableExpression getSmaller()

Get the EvaluableExpression which is supposed to be the smaller one in the comparison.

For example: if e1 < e2 should be expressed, e1 is set as smaller and e2 as greater expression.

Returns:

the smaller expression

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