org.apache.velocity.runtime.parser.node

Class ASTElseIfStatement

java.lang.Object

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

org.apache.velocity.runtime.parser.node.ASTElseIfStatement

All Implemented Interfaces:

Node, Renderable

public class ASTElseIfStatement
extends SimpleNode

This class is responsible for handling the ElseIf VTL control statement. 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.

Field Summary

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 and Description
ASTElseIfStatement(int id)
ASTElseIfStatement(Parser p, int id)

Method Summary

Modifier and Type	Method and Description
boolean	evaluate(InternalContextAdapter context) An ASTElseStatement is true if the expression it contains evaluates to true.
Object	init(InternalContextAdapter context, Object data)
Object	jjtAccept(ParserVisitor visitor, Object data)
boolean	render(InternalContextAdapter context, Writer writer)

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

childrenAccept, cleanupParserAndTokens, dump, dump, dump, execute, getColumn, getFirstToken, getFirstTokenImage, getInfo, getLastToken, getLastTokenImage, getLine, getLocation, getParser, getRuntimeServices, getTemplate, getTemplateName, getType, isInvalid, jjtAddChild, jjtClose, jjtGetChild, jjtGetNumChildren, jjtGetParent, jjtOpen, jjtSetParent, literal, saveTokenImages, setFirstToken, setInfo, setInvalid, toString, toString, value

Methods inherited from class java.lang.Object

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

Constructor Detail

ASTElseIfStatement

public ASTElseIfStatement(int id)

Parameters:

id -

ASTElseIfStatement

public ASTElseIfStatement(Parser p,
                          int id)

Parameters:

p -

id -

Method Detail

init

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

Specified by:

init in interface Node

Overrides:

init in class SimpleNode

Returns:

The init result.

Throws:

TemplateInitException

See Also:

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

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.node.ParserVisitor, java.lang.Object)

evaluate

public boolean evaluate(InternalContextAdapter context)
                 throws MethodInvocationException

An ASTElseStatement is true if the expression it contains evaluates to true. Expressions know how to evaluate themselves, so we do that here and return the value back to ASTIfStatement where this node was originally asked to evaluate itself.

Specified by:

evaluate in interface Node

Overrides:

evaluate in class SimpleNode

Parameters:

context -

Returns:

True if all children are true.

Throws:

MethodInvocationException

See Also:

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

render

public boolean render(InternalContextAdapter context,
                      Writer writer)
               throws IOException,
                      MethodInvocationException,
                      ResourceNotFoundException,
                      ParseErrorException

Specified by:

render in interface Node

Specified by:

render in interface Renderable

Overrides:

render in class SimpleNode

Returns:

True if the node rendered successfully.

Throws:

IOException

MethodInvocationException

ResourceNotFoundException

ParseErrorException

See Also:

SimpleNode.render(org.apache.velocity.context.InternalContextAdapter, java.io.Writer)