com.eteks.parser.node
Class FunctionParameterNode

java.lang.Object
  |
  +--com.eteks.parser.node.FunctionParameterNode

All Implemented Interfaces:

ExpressionNode, java.io.Serializable

public class FunctionParameterNode

extends java.lang.Object

implements ExpressionNode

Node matching a parameter of a compiled function.

Since:

Jeks 1.0

Version:

1.0

Author:

Emmanuel Puybaret

See Also:

Serialized Form

Constructor Summary

FunctionParameterNode(int parameterIndex)
Creates the node for the parameter at index parameterIndex.

Method Summary

double	computeExpression(double[] parametersValue) Returns the double value of the parameter in parametersValue at the index returned by getParameterIndex ().
java.lang.Object	computeExpression(Interpreter interpreter, java.lang.Object[] parametersValue) Returns the value returned by the getParameterValue () method of interpreter with the parameter in parametersValue at the index returned by getParameterIndex () as argument of getParameterValue ().
int	getParameterIndex() Returns the index of this parameter.

Methods inherited from class java.lang.Object

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

Constructor Detail

FunctionParameterNode

public FunctionParameterNode(int parameterIndex)

Creates the node for the parameter at index parameterIndex.

Parameters:

parameterIndex - the index of the parameter.

Method Detail

getParameterIndex

public int getParameterIndex()

Returns the index of this parameter.

Returns:

the index of this parameter.

computeExpression

public java.lang.Object computeExpression(Interpreter interpreter,
                                          java.lang.Object[] parametersValue)

Returns the value returned by the getParameterValue () method of interpreter with the parameter in parametersValue at the index returned by getParameterIndex () as argument of getParameterValue ().

Specified by:

computeExpression in interface ExpressionNode

Parameters:

interpreter - runtime interpreter.

parametersValue - the value of parameters passed to compute a compiled function.

Returns:

the interpreted value of this parameter. The type of the returned value depends on the implementation of the interpreter.

See Also:

Interpreter.getParameterValue(java.lang.Object)

computeExpression

public double computeExpression(double[] parametersValue)

Returns the double value of the parameter in parametersValue at the index returned by getParameterIndex ().

Specified by:

computeExpression in interface ExpressionNode

Parameters:

parametersValue - the value of parameters passed to compute a compiled function.

Returns:

the value of the parameter at the index returned by getParameterIndex ().