org.apache.velocity.runtime.parser.node

Class ASTAndNode

Implemented Interfaces:
Node

public class ASTAndNode
extends SimpleNode

Please look at the Parser.jjt file which is what controls the generation of this class.
Version:
$Id: ASTAndNode.java,v 1.8.8.1 2004/03/03 23:22:58 geirm Exp $
Authors:
Jason van Zyl
Geir Magnusson Jr.

Field Summary

Fields inherited from class org.apache.velocity.runtime.parser.node.SimpleNode

children, first, id, info, invalid, last, parent, parser, rsvc, state

Constructor Summary

ASTAndNode(int id)
ASTAndNode(Parser p, int id)

Method Summary

boolean
evaluate(InternalContextAdapter context)
logical and : null && right = false left && null = false null && null = false
Object
jjtAccept(ParserVisitor visitor, Object data)
Accept the visitor.
Object
value(InternalContextAdapter context)
Returns the value of the expression.

Methods inherited from class org.apache.velocity.runtime.parser.node.SimpleNode

childrenAccept, dump, evaluate, execute, getColumn, getFirstToken, getInfo, getLastToken, getLine, getType, init, isInvalid, jjtAccept, jjtAddChild, jjtClose, jjtGetChild, jjtGetNumChildren, jjtGetParent, jjtOpen, jjtSetParent, literal, render, setFirstToken, setInfo, setInvalid, toString, value

Constructor Details

ASTAndNode

public ASTAndNode(int id)

ASTAndNode

public ASTAndNode(Parser p,
                  int id)

Method Details

evaluate

public boolean evaluate(InternalContextAdapter context)
            throws MethodInvocationException
logical and : null && right = false left && null = false null && null = false
Specified by:
evaluate in interface Node
Overrides:
evaluate in interface SimpleNode

jjtAccept

public Object jjtAccept(ParserVisitor visitor,
                        Object data)
Accept the visitor. *
Specified by:
jjtAccept in interface Node
Overrides:
jjtAccept in interface SimpleNode

value

public Object value(InternalContextAdapter context)
            throws MethodInvocationException
Returns the value of the expression. Since the value of the expression is simply the boolean result of evaluate(), lets return that.
Specified by:
value in interface Node
Overrides:
value in interface SimpleNode

Copyright B) 2002 Apache Software Foundation. All Rights Reserved.