org.apache.commons.jexl.parser
Class ASTIntegerLiteral

java.lang.Object
  |
  +--org.apache.commons.jexl.parser.SimpleNode
        |
        +--org.apache.commons.jexl.parser.ASTIntegerLiteral

All Implemented Interfaces:

Node

public class ASTIntegerLiteral

extends SimpleNode

represents an integer.

Version:

$Id: ASTIntegerLiteral.java 398202 2006-04-29 16:40:34Z dion $

Field Summary

protected Integer

val literal value.

Fields inherited from class org.apache.commons.jexl.parser.SimpleNode

children, id, parent, parser

Constructor Summary

ASTIntegerLiteral(int id)
Create the node given an id.

ASTIntegerLiteral(Parser p, int id)
Create a node with the given parser and id.

Method Summary

Object	execute(Object obj, JexlContext ctx) Part of reference resolution - wierd...
Object	jjtAccept(ParserVisitor visitor, Object data) Accept the visitor.
Object	value(JexlContext jc) Gets the value of this node.

Methods inherited from class org.apache.commons.jexl.parser.SimpleNode

childrenAccept, dump, interpret, jjtAddChild, jjtClose, jjtGetChild, jjtGetNumChildren, jjtGetParent, jjtOpen, jjtSetParent, setValue, toString, toString

Methods inherited from class java.lang.Object

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

Field Detail

val

protected Integer val

literal value.

Constructor Detail

ASTIntegerLiteral

public ASTIntegerLiteral(int id)

Create the node given an id.

Parameters:

id - node id.

ASTIntegerLiteral

public ASTIntegerLiteral(Parser p,
                         int id)

Create a node with the given parser and id.

Parameters:

p - a parser.

id - node id.

Method Detail

jjtAccept

public Object jjtAccept(ParserVisitor visitor,
                        Object data)

Accept the visitor.

Specified by:

jjtAccept in interface Node

Overrides:

jjtAccept in class SimpleNode

Parameters:

visitor - a ParserVisitor.

data - data to be passed along to the visitor.

Returns:

the value from visiting.

See Also:

ParserVisitor.visit(org.apache.commons.jexl.parser.SimpleNode, java.lang.Object)

execute

public Object execute(Object obj,
                      JexlContext ctx)
               throws Exception

Part of reference resolution - wierd... in JSTL EL you can have foo.2 which is equiv to foo[2] it appears...

Overrides:

execute in class SimpleNode

Parameters:

obj - the object to evaluate against.

ctx - the JexlContext.

Returns:

the resulting value.

Throws:

Exception - on any error.

See Also:

ASTArrayAccess.evaluateExpr(Object, Object)

value

public Object value(JexlContext jc)
             throws Exception

Gets the value of this node.

Overrides:

value in class SimpleNode

Parameters:

jc - the context to retrieve values from.

Returns:

the value of the node.

Throws:

Exception - when evaluating the operands fails.