ariba.util.expr
Class ObjectMethodAccessor

java.lang.Object
  ariba.util.expr.ObjectMethodAccessor

All Implemented Interfaces:

MethodAccessor

public class ObjectMethodAccessor
extends Object
implements MethodAccessor

Implementation of PropertyAccessor that uses reflection on the target object's class to find a field or a pair of set/get methods with the given property name.

Author:

Luke Blanshard (blanshlu@netscape.net), Drew Davidson (drew@ognl.org)

Constructor Summary

ObjectMethodAccessor()

Method Summary

Object	callMethod(Map context, Object target, String methodName, Object[] args) Calls the method named with the arguments given.
Object	callStaticMethod(Map context, Class targetClass, String methodName, Object[] args) Calls the static method named with the arguments given on the class given.

Methods inherited from class java.lang.Object

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

Constructor Detail

ObjectMethodAccessor

public ObjectMethodAccessor()

Method Detail

callStaticMethod

public Object callStaticMethod(Map context,
                               Class targetClass,
                               String methodName,
                               Object[] args)
                        throws MethodFailedException

Description copied from interface: MethodAccessor

Calls the static method named with the arguments given on the class given.

Specified by:

callStaticMethod in interface MethodAccessor

Parameters:

context - expression context in which the method should be called

targetClass - the object in which the method exists

methodName - the name of the method

args - the arguments to the method

Returns:

result of calling the method

Throws:

MethodFailedException - if there is an error calling the method

callMethod

public Object callMethod(Map context,
                         Object target,
                         String methodName,
                         Object[] args)
                  throws MethodFailedException

Description copied from interface: MethodAccessor

Calls the method named with the arguments given.

Specified by:

callMethod in interface MethodAccessor

Parameters:

context - expression context in which the method should be called

target - the object in which the method exists

methodName - the name of the method

args - the arguments to the method

Returns:

result of calling the method

Throws:

MethodFailedException - if there is an error calling the method