com.nt.udc.io

Class COSARExprPos

java.lang.Object

com.nt.udc.io.COSARExpr

com.nt.udc.io.COSARExprPos

public class COSARExprPos
extends COSARExpr

This class represents the 'find substring' operation.

Field Summary

Fields

Modifier and Type	Field and Description
protected COSARExpr	m_occurence
protected COSARExpr	m_string These members represent the operands.
protected COSARExpr	m_substring
protected COSARAttrInt	m_value

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

m_bIsConstant

Constructor Summary

Constructors

Constructor and Description
COSARExprPos(COSARExpr string, COSARExpr substring, COSARExpr occurence)

Method Summary

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 COSARAttrInt m_value

m_string

protected COSARExpr m_string

These members represent the operands.

m_substring

protected COSARExpr m_substring

m_occurence

protected COSARExpr m_occurence

Constructor Detail

COSARExprPos

public COSARExprPos(COSARExpr string,
                    COSARExpr substring,
                    COSARExpr occurence)
             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