Package 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:

Cloneable, Node, Renderable

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:

$Id$

Author:

Jason van Zyl, Geir Magnusson Jr.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ASTMethod.MethodCacheKey	Internal class used as key for method cache.

Field Summary

Fields

Modifier and Type	Field	Description
protected boolean	strictRef	Indicates if we are running in strict reference mode.
protected Info	uberInfo

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

children, column, first, firstImage, id, info, invalid, last, lastImage, line, literal, log, parent, parser, rsvc, state, template

Constructor Summary

Constructors

Constructor	Description
ASTMethod(int id)
ASTMethod(Parser p, int id)

Method Summary

Modifier and Type	Method	Description
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(StandardParserVisitor visitor, Object data)
String	literal()	Returns the string ".method_name(...)".

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

childrenAccept, cleanupParserAndTokens, clone, clone, dump, dump, dump, evaluate, getColumn, getFirstToken, getFirstTokenImage, getInfo, getLastToken, getLastTokenImage, getLine, getLocation, getParser, getRuntimeServices, getTemplate, getTemplateName, getType, isInvalid, jjtAddChild, jjtClose, jjtGetChild, jjtGetNumChildren, jjtGetParent, jjtOpen, jjtSetParent, render, saveTokenImages, 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

strictRef

protected boolean strictRef

Indicates if we are running in strict reference mode.

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(StandardParserVisitor 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.node.StandardParserVisitor, 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.

Since:

1.5

literal

public String literal()

Returns the string ".method_name(...)". Arguments literals are not rendered. This method is only used for displaying the VTL stacktrace when a rendering error is encountered when runtime.log.track_location is true.

Specified by:

literal in interface Node

Overrides:

literal in class SimpleNode

Returns:

See Also:

Node.literal()