org.apache.velocity.runtime.parser.node
Class ASTAndNode

java.lang.Object
  org.apache.velocity.runtime.parser.node.SimpleNode
      org.apache.velocity.runtime.parser.node.ASTAndNode

All 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 463298 2006-10-12 16:10:32Z henning $

Author:

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, log, 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)
Object	value(InternalContextAdapter context) Returns the value of the expression.

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

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

Methods inherited from class java.lang.Object

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

Constructor Detail

ASTAndNode

public ASTAndNode(int id)

Parameters:

id -

ASTAndNode

public ASTAndNode(Parser p,
                  int id)

Parameters:

p -

id -

Method Detail

jjtAccept

public Object jjtAccept(ParserVisitor visitor,
                        Object data)

Specified by:

jjtAccept in interface Node

Overrides:

jjtAccept in class SimpleNode

Returns:

The Node execution result object.

See Also:

SimpleNode.jjtAccept(org.apache.velocity.runtime.parser.ParserVisitor, java.lang.Object)

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 class SimpleNode

Parameters:

context -

Returns:

The value of the expression.

Throws:

MethodInvocationException

See Also:

Node.value(org.apache.velocity.context.InternalContextAdapter)

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 class SimpleNode

Parameters:

context -

Returns:

True if both sides are true.

Throws:

MethodInvocationException

See Also:

Node.evaluate(org.apache.velocity.context.InternalContextAdapter)