org.apache.velocity.runtime.parser.node

Class ASTMethod

java.lang.Object

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

org.apache.velocity.runtime.parser.node.ASTMethod

All Implemented Interfaces:

Node

public class ASTMethod
extends SimpleNode

ASTMethod.java Method support for references : $foo.method() NOTE : introspection is now done at render time. Please look at the Parser.jjt file which is what controls the generation of this class.

Version:

$Id: ASTMethod.java,v 1.24.4.1 2004/03/03 23:22:59 geirm Exp $

Author:

Jason van Zyl, Geir Magnusson Jr.

Field Summary

Fields

Modifier and Type	Field and Description
private java.lang.String	methodName
private int	paramCount

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
ASTMethod(int id)
ASTMethod(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.
java.lang.Object	init(InternalContextAdapter context, java.lang.Object data) simple init - init our subtree and get what we can from the AST
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

methodName

private java.lang.String methodName

paramCount

private int paramCount

Constructor Detail

ASTMethod

public ASTMethod(int id)

ASTMethod

public ASTMethod(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 - init our subtree and get what we can from the AST

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. Returns null if a problem, the actual return if the method returns something, or an empty string "" if the method returns void

Specified by:

execute in interface Node

Overrides:

execute in class SimpleNode

Throws:

MethodInvocationException