ognl
Interface NullHandler

All Known Implementing Classes:

ObjectNullHandler

public interface NullHandler

Interface for handling null results from Chains. Object has the opportunity to substitute an object for the null and continue.

Author:

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

Method Summary

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

Method Detail

nullMethodResult

public Object nullMethodResult(Map context,
                               Object target,
                               String methodName,
                               Object[] args)

Method called on target returned null.

nullPropertyValue

public Object nullPropertyValue(Map context,
                                Object target,
                                Object property)

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