com.nt.udc.io

Class COSARExprUnaryMinus

java.lang.Object

com.nt.udc.io.COSARExpr

com.nt.udc.io.COSARExprUnaryMinus

public class COSARExprUnaryMinus
extends COSARExpr

This class represents the numeric unary minus op.

Field Summary

Fields

Modifier and Type	Field and Description
protected COSARExpr	m_operand
protected COSARAttrDouble	m_value This value is updated during the eval operation and returned.

Fields inherited from class com.nt.udc.io.COSARExpr

m_bIsConstant

Constructor Summary

Constructors

Constructor and Description
COSARExprUnaryMinus(COSARExpr operand)

Method Summary

Methods

Modifier and Type	Method and Description
COSARAttr	eval(java.util.HashMap symbols) This function is used to evaluate the expression.
java.lang.String	toString()

Methods inherited from class com.nt.udc.io.COSARExpr

isConstant

Methods inherited from class java.lang.Object

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

Field Detail

m_value

protected COSARAttrDouble m_value

This value is updated during the eval operation and returned.

m_operand

protected COSARExpr m_operand

Constructor Detail

COSARExprUnaryMinus

public COSARExprUnaryMinus(COSARExpr operand)
                    throws java.lang.Exception

Throws:

java.lang.Exception

Method Detail

eval

public COSARAttr eval(java.util.HashMap symbols)
               throws java.lang.Exception

Description copied from class: COSARExpr

This function is used to evaluate the expression. A symbol table is passed to help in retrieving the value of referenced symbols. The HashMap should contain values stored as COSARAttr objects, keyed by their associated symbol's name.

Overrides:

eval in class COSARExpr

Returns:

The expression's value

Throws:

java.lang.Exception

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

Returns:

A string representation of the OSAR expression