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

java.lang.Object
  org.apache.velocity.runtime.parser.node.SimpleNode

All Implemented Interfaces:

Node

Direct Known Subclasses:

ASTAddNode, ASTAndNode, ASTAssignment, ASTBlock, ASTComment, ASTDirective, ASTDivNode, ASTElseIfStatement, ASTElseStatement, ASTEQNode, ASTEscape, ASTEscapedDirective, ASTExpression, ASTFalse, ASTFloatingPointLiteral, ASTGENode, ASTGTNode, ASTIdentifier, ASTIfStatement, ASTIncludeStatement, ASTIntegerLiteral, ASTIntegerRange, ASTLENode, ASTLTNode, ASTMap, ASTMethod, ASTModNode, ASTMulNode, ASTNENode, ASTNotNode, ASTObjectArray, ASTOrNode, ASTParameters, ASTprocess, ASTReference, ASTSetDirective, ASTStop, ASTStringLiteral, ASTSubtractNode, ASTText, ASTTrue, ASTVariable, ASTWord

public class SimpleNode
extends Object
implements Node

Field Summary

protected Node[]	children
protected Token	first
protected int	id
protected int	info
protected boolean	invalid
protected Token	last
protected Node	parent
protected Parser	parser
protected RuntimeServices	rsvc
boolean	state

Constructor Summary

SimpleNode(int i)

SimpleNode(Parser p, int i)

Method Summary

Object	childrenAccept(ParserVisitor visitor, Object data) Accept the visitor.
void	dump(String prefix)
boolean	evaluate(InternalContextAdapter context)
Object	execute(Object o, InternalContextAdapter context)
int	getColumn()
Token	getFirstToken()
int	getInfo()
Token	getLastToken()
int	getLine()
String	getLocation(InternalContextAdapter ctx) Get the location of the node.
String	getLocation(String templateName) Get the location of the node.
int	getType()
Object	init(InternalContextAdapter context, Object data)
boolean	isInvalid()
Object	jjtAccept(ParserVisitor visitor, Object data) Accept the visitor.
void	jjtAddChild(Node n, int i) This method tells the node to add its argument to the node's list of children.
void	jjtClose() This method is called after all the child nodes have been added.
Node	jjtGetChild(int i) This method returns a child node.
int	jjtGetNumChildren() Return the number of children the node has.
Node	jjtGetParent()
void	jjtOpen() This method is called after the node has been made the current node.
void	jjtSetParent(Node n) This pair of methods are used to inform the node of its parent.
String	literal()
boolean	render(InternalContextAdapter context, Writer writer)
void	setFirstToken(Token t)
void	setInfo(int info)
void	setInvalid()
String	toString(String prefix)
Object	value(InternalContextAdapter context)

Methods inherited from class java.lang.Object

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

Field Detail

rsvc

protected RuntimeServices rsvc

parent

protected Node parent

children

protected Node[] children

id

protected int id

parser

protected Parser parser

info

protected int info

state

public boolean state

invalid

protected boolean invalid

first

protected Token first

last

protected Token last

Constructor Detail

SimpleNode

public SimpleNode(int i)

SimpleNode

public SimpleNode(Parser p,
                  int i)

Method Detail

getLocation

public String getLocation(InternalContextAdapter ctx)

Description copied from interface: Node

Get the location of the node. The given ctx is used to find out, which template contains this node.

Specified by:

getLocation in interface Node

Parameters:

ctx - the node context (the node itself does not know the name of the template, which contains it).

Returns:

a String in the format $templateName#$macroName [line $line, column $col]:

getLocation

public String getLocation(String templateName)

Description copied from interface: Node

Get the location of the node. Use the given templateName to indicate, which template contains this node.

Specified by:

getLocation in interface Node

Parameters:

templateName - template name to use (the node itself does not know the name of the template, which contains it).

Returns:

a String in the format $templateName#$macroName [line $line, column $col]:

jjtOpen

public void jjtOpen()

Description copied from interface: Node

This method is called after the node has been made the current node. It indicates that child nodes can now be added to it.

Specified by:

jjtOpen in interface Node

jjtClose

public void jjtClose()

Description copied from interface: Node

This method is called after all the child nodes have been added.

Specified by:

jjtClose in interface Node

setFirstToken

public void setFirstToken(Token t)

getFirstToken

public Token getFirstToken()

Specified by:

getFirstToken in interface Node

getLastToken

public Token getLastToken()

Specified by:

getLastToken in interface Node

jjtSetParent

public void jjtSetParent(Node n)

Description copied from interface: Node

This pair of methods are used to inform the node of its parent.

Specified by:

jjtSetParent in interface Node

jjtGetParent

public Node jjtGetParent()

Specified by:

jjtGetParent in interface Node

jjtAddChild

public void jjtAddChild(Node n,
                        int i)

Description copied from interface: Node

This method tells the node to add its argument to the node's list of children.

Specified by:

jjtAddChild in interface Node

jjtGetChild

public Node jjtGetChild(int i)

Description copied from interface: Node

This method returns a child node. The children are numbered from zero, left to right.

Specified by:

jjtGetChild in interface Node

jjtGetNumChildren

public int jjtGetNumChildren()

Description copied from interface: Node

Return the number of children the node has.

Specified by:

jjtGetNumChildren in interface Node

jjtAccept

public Object jjtAccept(ParserVisitor visitor,
                        Object data)

Accept the visitor.

Specified by:

jjtAccept in interface Node

childrenAccept

public Object childrenAccept(ParserVisitor visitor,
                             Object data)

Accept the visitor.

Specified by:

childrenAccept in interface Node

toString

public String toString(String prefix)

dump

public void dump(String prefix)

literal

public String literal()

Specified by:

literal in interface Node

init

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

Specified by:

init in interface Node

Throws:

Exception

evaluate

public boolean evaluate(InternalContextAdapter context)
                 throws MethodInvocationException

Specified by:

evaluate in interface Node

Throws:

MethodInvocationException

value

public Object value(InternalContextAdapter context)
             throws MethodInvocationException

Specified by:

value in interface Node

Throws:

MethodInvocationException

render

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

Specified by:

render in interface Node

Throws:

IOException

MethodInvocationException

ParseErrorException

ResourceNotFoundException

execute

public Object execute(Object o,
                      InternalContextAdapter context)
               throws MethodInvocationException

Specified by:

execute in interface Node

Throws:

MethodInvocationException

getType

public int getType()

Specified by:

getType in interface Node

setInfo

public void setInfo(int info)

Specified by:

setInfo in interface Node

getInfo

public int getInfo()

Specified by:

getInfo in interface Node

setInvalid

public void setInvalid()

Specified by:

setInvalid in interface Node

isInvalid

public boolean isInvalid()

Specified by:

isInvalid in interface Node

getLine

public int getLine()

Specified by:

getLine in interface Node

getColumn

public int getColumn()

Specified by:

getColumn in interface Node