eu.slipo.athenarc.triplegeo.expression

Class SubExpr

java.lang.Object

eu.slipo.athenarc.triplegeo.expression.SubExpr

All Implemented Interfaces:

Expr

public class SubExpr
extends java.lang.Object
implements Expr

Handles sub-expressions (possibly enclosed in parentheses) in a logical expression.

Version:

2.0

Author:

Kostas Patroumpas

Field Summary

Fields

Modifier and Type	Field and Description
private Expr	child

Constructor Summary

Constructors

Constructor and Description
SubExpr(TokenStream stream) Constructor of the class.

Method Summary

Modifier and Type	Method and Description
boolean	evaluate(java.util.Map<java.lang.String,java.lang.String> data) Evaluates the expression against the given input data.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

child

private Expr child

Constructor Detail

SubExpr

public SubExpr(TokenStream stream)
        throws java.text.ParseException

Constructor of the class.

Parameters:

stream - Input stream of tokens.

Throws:

java.text.ParseException

Method Detail

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

evaluate

public boolean evaluate(java.util.Map<java.lang.String,java.lang.String> data)

Description copied from interface: Expr

Evaluates the expression against the given input data.

Specified by:

evaluate in interface Expr

Parameters:

data - A data record containing the attribute names (key) and their values.

Returns: