org.apache.commons.jexl.parser

Class ASTSizeMethod

java.lang.Object

org.apache.commons.jexl.parser.SimpleNode

org.apache.commons.jexl.parser.ASTSizeMethod

All Implemented Interfaces:

Node

public class ASTSizeMethod
extends SimpleNode

Size Method, e.g. size().

Version:

$Id: ASTSizeMethod.java 548229 2007-06-18 06:11:32Z dion $

Author:

Mark H. Wilkinson

Field Summary

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

children, id, parent, parser

Constructor Summary

Constructors

Constructor and Description
ASTSizeMethod(int id) Create the node given an id.
ASTSizeMethod(Parser p, int id) Create a node with the given parser and id.

Method Summary

Modifier and Type	Method and Description
Object	execute(Object obj, JexlContext jc) evaluate size as part of an expression on a base object.
Object	jjtAccept(ParserVisitor visitor, Object data) Accept the visitor.

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

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

Methods inherited from class java.lang.Object

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

Constructor Detail

ASTSizeMethod

public ASTSizeMethod(int id)

Create the node given an id.

Parameters:

id - node id.

ASTSizeMethod

public ASTSizeMethod(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 jc)
               throws Exception

evaluate size as part of an expression on a base object. foo.bar.size

Overrides:

execute in class SimpleNode

Parameters:

jc - the JexlContext to evaluate against.

obj - not used.

Returns:

the value of the array expression.

Throws:

Exception - on any error