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

Class IfThenElseExpression

java.lang.Object

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

All Implemented Interfaces:

EvaluableExpression

public class IfThenElseExpression
extends Object
implements EvaluableExpression

Expression that executes an if-then-else-statement based on its contained expressions.

Field Summary

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

FALSE

Constructor Summary

Constructors

Constructor and Description
IfThenElseExpression(EvaluableExpression ifStatement, EvaluableExpression thenStatement, EvaluableExpression elseStatement) Builds an expression which returns .

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	getElseStatement() Get expression contained in else-statement.
EvaluableExpression	getIfStatement() Get expression contained in if-statement.
EvaluableExpression	getThenStatement() Get expression contained in then-statement.
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

IfThenElseExpression

public IfThenElseExpression(EvaluableExpression ifStatement,
                            EvaluableExpression thenStatement,
                            EvaluableExpression elseStatement)

Builds an expression which returns .

Parameters:

ifStatement - The expression which contains the if-statement. Must not be null.

thenStatement - The expression which contains the then-statement. Must not be null.

elseStatement - The expression which contains the else-statement. Must not be null.

Method Detail

getIfStatement

public EvaluableExpression getIfStatement()

Get expression contained in if-statement.

Returns:

if-Expression

getElseStatement

public EvaluableExpression getElseStatement()

Get expression contained in else-statement.

Returns:

else-Expression

getThenStatement

public EvaluableExpression getThenStatement()

Get expression contained in then-statement.

Returns:

then-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