com.opensymphony.xwork2.conversion
Interface NullHandler

All Known Implementing Classes:
InstantiatingNullHandler

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
 java.lang.Object nullMethodResult(java.util.Map<java.lang.String,java.lang.Object> 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<java.lang.String,java.lang.Object> context, java.lang.Object target, java.lang.Object property)
          Property in target evaluated to null.
 

Method Detail

nullMethodResult

java.lang.Object nullMethodResult(java.util.Map<java.lang.String,java.lang.Object> context,
                                  java.lang.Object target,
                                  java.lang.String methodName,
                                  java.lang.Object[] args)
Method called on target returned null.


nullPropertyValue

java.lang.Object nullPropertyValue(java.util.Map<java.lang.String,java.lang.Object> context,
                                   java.lang.Object target,
                                   java.lang.Object property)
Property in target evaluated to null. Property can be a constant String property name or a DynamicSubscript.



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