Package org.simpleframework.http.session
Interface Observer<T>
public interface Observer<T>
The
Observer
interface is used to observe the session
activity within the session manager. This enables tracking of all
sessions created and destroyed by the session manager. Once the
session is created the observer start
method is
invoked and when the session is canceled the cancel
method is invoked. Observations allow specialized monitoring.- Author:
- Niall Gallagher
- See Also:
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Method Summary
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Method Details
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create
This method is called after the session has been created but before it is used. Listening to invocations of this method will allow the user to establish any data structures required or add any attributes to the session that are needed.- Parameters:
session
- this is the session instance that was created
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cancel
This method is called after the session has been canceled or expired. It allows the listener to clean up session resources and attributes in a specialized manner. When finished the session will no longer exist within the application.- Parameters:
session
- this is the session object that is canceled
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