parsii.eval

Class FunctionCall

java.lang.Object

parsii.eval.Expression

parsii.eval.FunctionCall

All Implemented Interfaces:

Serializable

public class FunctionCall
extends Expression

Represents the invocation of a function.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
FunctionCall()

Method Summary

Modifier and Type	Method and Description
void	addParameter(Expression expression) Adds an expression as parameter.
double	evaluate() Evaluates the expression to a double number.
List<Expression>	getParameters() Returns all parameters added so far.
void	setFunction(Function function) Sets the function to evaluate.
Expression	simplify() Returns a simplified version of this expression.

Methods inherited from class parsii.eval.Expression

isConstant

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FunctionCall

public FunctionCall()

Method Detail

evaluate

public double evaluate()

Description copied from class: Expression

Evaluates the expression to a double number.

Specified by:

evaluate in class Expression

Returns:

the double value as a result of evaluating this expression. Returns NaN if an error occurs

simplify

public Expression simplify()

Description copied from class: Expression

Returns a simplified version of this expression.

Overrides:

simplify in class Expression

Returns:

a simplified version of this expression or this if the expression cannot be simplified

setFunction

public void setFunction(Function function)

Sets the function to evaluate.

Parameters:

function - the function to evaluate

addParameter

public void addParameter(Expression expression)

Adds an expression as parameter.

Parameters:

expression - the parameter to add

getParameters

public List<Expression> getParameters()

Returns all parameters added so far.

Returns:

a list of parameters added to this call