com.mpobjects.bdparsii.eval

Class FunctionCall

java.lang.Object

com.mpobjects.bdparsii.eval.AbstractExpression

com.mpobjects.bdparsii.eval.FunctionCall

All Implemented Interfaces:

Expression

public final class FunctionCall
extends AbstractExpression

Represents the invocation of a function.

Constructor Summary

Constructors

Constructor and Description
FunctionCall(MathContext mathContext) Create a function call expression.

Method Summary

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

Methods inherited from class com.mpobjects.bdparsii.eval.AbstractExpression

getMathContext

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.mpobjects.bdparsii.eval.Expression

evaluate, isConstant

Constructor Detail

FunctionCall

public FunctionCall(MathContext mathContext)

Create a function call expression.

Parameters:

mathContext - the math context

Method Detail

evaluate

public BigDecimal evaluate(MathContext mathContext)

Description copied from interface: Expression

Evaluates the expression to a BigDecimal number.

Parameters:

mathContext - Use this math context during calculation instead of the one provided during parsing. Does not affect already simplified subexpressions.

Returns:

the double value as a result of evaluating this expression.

simplify

public Expression simplify(MathContext mathContext)

Description copied from interface: Expression

Returns a simplified version of this expression.

Parameters:

mathContext - Match context used during simplification.

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