org.apache.velocity.runtime.parser.node

Class ASTIdentifier

java.lang.Object

org.apache.velocity.runtime.parser.node.SimpleNode

org.apache.velocity.runtime.parser.node.ASTIdentifier

All Implemented Interfaces:

Node

public class ASTIdentifier
extends SimpleNode

ASTIdentifier.java Method support for identifiers : $foo mainly used by ASTRefrence Introspection is now moved to 'just in time' or at render / execution time. There are many reasons why this has to be done, but the primary two are thread safety, to remove any context-derived information from class member variables.

Version:

$Id: ASTIdentifier.java,v 1.19.4.1 2004/03/03 23:22:58 geirm Exp $

Author:

Jason van Zyl, Geir Magnusson Jr.

Field Summary

Fields

Modifier and Type	Field and Description
private java.lang.String	identifier
protected Info	uberInfo This is really immutable after the init, so keep one for this node

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

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

Constructor Summary

Constructors

Constructor and Description
ASTIdentifier(int id)
ASTIdentifier(Parser p, int id)

Method Summary

Methods

Modifier and Type	Method and Description
java.lang.Object	execute(java.lang.Object o, InternalContextAdapter context) invokes the method on the object passed in
java.lang.Object	init(InternalContextAdapter context, java.lang.Object data) simple init - don't do anything that is context specific.
java.lang.Object	jjtAccept(ParserVisitor visitor, java.lang.Object data) Accept the visitor.

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

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

Methods inherited from class java.lang.Object

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

Field Detail

identifier

private java.lang.String identifier

uberInfo

protected Info uberInfo

This is really immutable after the init, so keep one for this node

Constructor Detail

ASTIdentifier

public ASTIdentifier(int id)

ASTIdentifier

public ASTIdentifier(Parser p,
             int id)

Method Detail

jjtAccept

public java.lang.Object jjtAccept(ParserVisitor visitor,
                         java.lang.Object data)

Accept the visitor.

Specified by:

jjtAccept in interface Node

Overrides:

jjtAccept in class SimpleNode

init

public java.lang.Object init(InternalContextAdapter context,
                    java.lang.Object data)
                      throws java.lang.Exception

simple init - don't do anything that is context specific. just get what we need from the AST, which is static.

Specified by:

init in interface Node

Overrides:

init in class SimpleNode

Throws:

java.lang.Exception

execute

public java.lang.Object execute(java.lang.Object o,
                       InternalContextAdapter context)
                         throws MethodInvocationException

invokes the method on the object passed in

Specified by:

execute in interface Node

Overrides:

execute in class SimpleNode

Throws:

MethodInvocationException