ariba.util.expr
Class ObjectNullHandler

java.lang.Object
  ariba.util.expr.ObjectNullHandler

All Implemented Interfaces:

NullHandler

public class ObjectNullHandler
extends java.lang.Object
implements NullHandler

Implementation of NullHandler that returns null in all cases, so that NullPointerException will be thrown by the caller.

Author:

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

Constructor Summary

ObjectNullHandler()

Method Summary

java.lang.Object	nullMethodResult(java.util.Map context, java.lang.Object target, java.lang.String methodName, java.lang.Object[] args) Method called on target returned null.
java.lang.Object	nullPropertyValue(java.util.Map context, java.lang.Object target, java.lang.Object property) Property in target evaluated to null.

Methods inherited from class java.lang.Object

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

Constructor Detail

ObjectNullHandler

public ObjectNullHandler()

Method Detail

nullMethodResult

public java.lang.Object nullMethodResult(java.util.Map context,
                                         java.lang.Object target,
                                         java.lang.String methodName,
                                         java.lang.Object[] args)

Description copied from interface: NullHandler

Method called on target returned null.

Specified by:

nullMethodResult in interface NullHandler

nullPropertyValue

public java.lang.Object nullPropertyValue(java.util.Map context,
                                          java.lang.Object target,
                                          java.lang.Object property)

Description copied from interface: NullHandler

Property in target evaluated to null. Property can be a constant String property name or a DynamicSubscript.

Specified by:

nullPropertyValue in interface NullHandler