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xmlBlaster 2.2.0 client API | |||||||||
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public interface I_ConnectionStateListener
Callback the client from XmlBlasterAccess if the connection to xmlBlaster is lost or was reestablished (failsafe mode).
Method Summary | |
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void |
reachedAlive(ConnectionStateEnum oldState,
I_XmlBlasterAccess connection)
This is the callback method invoked from XmlBlasterAccess notifying the client that a connection has been established and that its status is now ALIVE. |
void |
reachedAliveSync(ConnectionStateEnum oldState,
I_XmlBlasterAccess connection)
Invoked when the dispatcher goes to synch again after having delivered entries which where in the queue when the state changed to ALIVE. |
void |
reachedDead(ConnectionStateEnum oldState,
I_XmlBlasterAccess connection)
This is the callback method invoked from XmlBlasterAccess informing the client that the connection was lost (i.e. |
void |
reachedPolling(ConnectionStateEnum oldState,
I_XmlBlasterAccess connection)
This is the callback method invoked from XmlBlasterAccess informing the client that the connection state has changed to POLLING. |
Method Detail |
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void reachedAlive(ConnectionStateEnum oldState, I_XmlBlasterAccess connection)
Note that this method is invoked also when the connection has been established the first time. In this case the connection is fully operational but your connect() call has not yet returned. You can access the returned connect QoS in this case with connect.getConnectReturnQos().
You can erase all entries of the queue manually or add others before you return and in this way control the behavior. During you have control in reachedAlive() the client side queue is blocked and does not accept publish or request messages from other threads. So you can do peacefully your work (your thread is allowed to modify the queue exclusively).
If you send messages during this method invocation they are queued only and are sent as soon as this method returns.
This method is invoked by the login polling thread from I_XmlBlasterAccess in which case it is a physical Alive, and by the connect method on successful login in which case it is a logical Alive.
oldState
- The previous state of the connection.connectionHandler
- An interface which allows you to control the queue and the connectionvoid reachedAliveSync(ConnectionStateEnum oldState, I_XmlBlasterAccess connection)
oldState
- is always ALIVE.connection
- void reachedPolling(ConnectionStateEnum oldState, I_XmlBlasterAccess connection)
oldState
- The previous state of the connection.connectionHandler
- An interface which allows you to control the queue and the connectionvoid reachedDead(ConnectionStateEnum oldState, I_XmlBlasterAccess connection)
oldState
- The previous state of the connection.connectionHandler
- An interface which allows you to control the queue and the connection
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