org.apache.commons.jexl2
Class ObjectContext<T>

java.lang.Object
  org.apache.commons.jexl2.ObjectContext<T>

Type Parameters:

T - the wrapped object type to use

All Implemented Interfaces:

JexlContext

public class ObjectContext<T>
extends Object
implements JexlContext

Wraps an Object as a Jexl context.

Since:

2.1

Constructor Summary

ObjectContext(JexlEngine engine, T wrapped)
Creates a new ObjectContext.

Method Summary

Object	get(String name) Gets the value of a variable.
boolean	has(String name) Checks whether a variable is defined in this context.
void	set(String name, Object value) Sets the value of a variable.

Methods inherited from class java.lang.Object

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

Constructor Detail

ObjectContext

public ObjectContext(JexlEngine engine,
                     T wrapped)

Creates a new ObjectContext.

Parameters:

engine - the jexl engine to use to solve properties

wrapped - the object to wrap in this context

Method Detail

get

public Object get(String name)

Gets the value of a variable.

Specified by:

get in interface JexlContext

Parameters:

name - the variable's name

Returns:

the value

set

public void set(String name,
                Object value)

Sets the value of a variable.

Specified by:

set in interface JexlContext

Parameters:

name - the variable's name

value - the variable's value

has

public boolean has(String name)

Checks whether a variable is defined in this context.

A variable may be defined with a null value; this method checks whether the value is null or if the variable is undefined.

Specified by:

has in interface JexlContext

Parameters:

name - the variable's name

Returns:

true if it exists, false otherwise