com.nt.udc.io

Class COSARExprBinaryNumOp

java.lang.Object

com.nt.udc.io.COSARExpr

com.nt.udc.io.COSARExprBinaryNumOp

Direct Known Subclasses:

COSARExprDivide, COSARExprMinus, COSARExprMultiply, COSARExprPlus, COSARExprPower

public abstract class COSARExprBinaryNumOp
extends COSARExpr

This class represents a binary numeric operation.

Field Summary

Fields

Modifier and Type	Field and Description
protected COSARExpr	m_left This member represents the left operand.
protected COSARExpr	m_right This member represents the right operand.

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

m_bIsConstant

Constructor Summary

Constructors

Constructor and Description
COSARExprBinaryNumOp(COSARExpr left, COSARExpr right)

Method Summary

Methods

Modifier and Type	Method and Description
COSARAttr	eval(java.util.HashMap symbols) This function is used to evaluate the expression.
protected abstract double	getComputedValue(double val1, double val2) This function does the actual computation.
protected abstract java.lang.String	getOpString() This function returns a string representation of the operation.
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_left

protected COSARExpr m_left

This member represents the left operand.

m_right

protected COSARExpr m_right

This member represents the right operand.

Constructor Detail

COSARExprBinaryNumOp

public COSARExprBinaryNumOp(COSARExpr left,
                    COSARExpr right)
                     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

getComputedValue

protected abstract double getComputedValue(double val1,
                      double val2)

This function does the actual computation.

getOpString

protected abstract java.lang.String getOpString()

This function returns a string representation of the operation.