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 489650 2006-12-22 13:31:58Z cbrisson $

Author:

Jason van Zyl, Geir Magnusson Jr.

Nested Class Summary

static class

ASTMethod.MethodCacheKey Internal class used as key for method cache.

Field Summary

protected Info

uberInfo

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

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

Constructor Summary

ASTMethod(int id)

ASTMethod(Parser p, int id)

Method Summary

Object	execute(Object o, InternalContextAdapter context) invokes the method.
String	getMethodName()
Object	init(InternalContextAdapter context, Object data) simple init - init our subtree and get what we can from the AST
Object	jjtAccept(ParserVisitor visitor, Object data)

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, toString, value

Methods inherited from class java.lang.Object

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

Field Detail

uberInfo

protected Info uberInfo

Constructor Detail

ASTMethod

public ASTMethod(int id)

Parameters:

id -

ASTMethod

public ASTMethod(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)

init

public Object init(InternalContextAdapter context,
                   Object data)
            throws TemplateInitException

simple init - init our subtree and get what we can from the AST

Specified by:

init in interface Node

Overrides:

init in class SimpleNode

Parameters:

context -

data -

Returns:

The init result

Throws:

TemplateInitException

See Also:

Node.init(org.apache.velocity.context.InternalContextAdapter, java.lang.Object)

execute

public Object execute(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

Parameters:

o -

context -

Returns:

Result or null.

Throws:

MethodInvocationException

See Also:

Node.execute(java.lang.Object, org.apache.velocity.context.InternalContextAdapter)

getMethodName

public String getMethodName()

Returns:

Returns the methodName.