org.apache.velocity.runtime.parser.node

Class ASTOrNode

Implemented Interfaces:
Node

public class ASTOrNode
extends SimpleNode

Please look at the Parser.jjt file which is what controls the generation of this class.

Version:
$Id: ASTOrNode.java,v 1.6 2001/10/22 03:53:24 jon Exp $

Authors:
Jason van Zyl
Geir Magnusson Jr.

Nested Class Summary

Field Summary

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

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

Constructor Summary

ASTOrNode(int id)
ASTOrNode(Parser p, int id)

Method Summary

boolean
evaluate(InternalContextAdapter context)
the logical or : the rule : left || null -> left null || right -> right null || null -> false left || right -> left || right
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

ASTOrNode

public ASTOrNode(int id)


ASTOrNode

public ASTOrNode(Parser p,
                 int id)

Method Details

evaluate

public boolean evaluate(InternalContextAdapter context)
            throws MethodInvocationException
the logical or : the rule : left || null -> left null || right -> right null || null -> false left || right -> left || right
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 © 2003 Apache Software Foundation. All Rights Reserved.