org.glassfish.hk2.api

Interface HK2Invocation

public interface HK2Invocation

This is an interface that is also implemented by the MethodInvocation object passed to the invoke method of MethodInterceptor and the ConstructorInvocation object passed to the invoke method of ConstructorInterceptor. It allows HK2 users of the AOP interception feature to easily pass data between interceptors on the same invocatio stack

Author:

jwells

Method Summary

Modifier and Type	Method and Description
Object	getUserData(String key) Gets the user data associated with the given key
void	setUserData(String key, Object data) Sets the user data to be associated with the invocation frame.

Method Detail

setUserData

void setUserData(String key,
                 Object data)

Sets the user data to be associated with the invocation frame. The key may not be null. If data is null then the data associated with the key is removed

Parameters:

key - a non-null identifier for user data to be associated with the invocation frame

data - possibly null data. If non-null it will replace any value previously associated with the key. If null it will remove the key from the map

getUserData

Object getUserData(String key)

Gets the user data associated with the given key

Parameters:

key - The key for which to get data. May not be null

Returns:

The user data previously associated with this key, or null if there was no user data associated with this key