HK2Invocation

All Known Implementing Classes:

ConstructorInterceptorHandler.ConstructorInvocationImpl, MethodInterceptorHandler.MethodInvocationImpl
```
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

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`java.lang.Object`	`getUserData(java.lang.String key)`	Gets the user data associated with the given key
`void`	`setUserData(java.lang.String key, java.lang.Object data)`	Sets the user data to be associated with the invocation frame.

- Method Detail
  - setUserData
```
void setUserData(java.lang.String key,
                 java.lang.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
```
java.lang.Object getUserData(java.lang.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