me.prettyprint.cassandra.connection

Class ConnectionManagerEmptyListener

java.lang.Object

me.prettyprint.cassandra.connection.ConnectionManagerEmptyListener

All Implemented Interfaces:

Serializable, ConnectionManagerListener

public abstract class ConnectionManagerEmptyListener
extends Object
implements ConnectionManagerListener

an Empty implementation of ConnectionManagerListener can be extended if you need only some of the events

Author:

Elyran Kogan

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
ConnectionManagerEmptyListener()

Method Summary

Methods

Modifier and Type	Method and Description
String	getName()
void	onAddHost(CassandraHost cassandraHost, boolean added, String errorMessage, Exception e) fires when an action to add CassandraHost was triggered
void	onAllHostsDown() fires when the CassandraHostRetryService detects that all nodes are down CassandraHostRetryService must be enabled for this event to fire
void	onHostDown(CassandraHost cassandraHost) fires when a CassandraHost was detected as down
void	onHostRestored(CassandraHost cassandraHost) fires when a CassandraHost was restored by the CassandraHostRetryService CassandraHostRetryService must be enabled for this event to fire
void	onRemoveHost(CassandraHost cassandraHost, boolean removed, String message) fires when an action to remove CassandraHost was triggered
void	onSuspendHost(CassandraHost cassandraHost, boolean removed) fired when a suspend action was triggered on the host
void	onUnSuspendHost(CassandraHost cassandraHost, boolean readded) fired when an un-suspend action was triggered on the host

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ConnectionManagerEmptyListener

public ConnectionManagerEmptyListener()

Method Detail

onHostDown

public void onHostDown(CassandraHost cassandraHost)

Description copied from interface: ConnectionManagerListener

fires when a CassandraHost was detected as down

Specified by:

onHostDown in interface ConnectionManagerListener

Parameters:

cassandraHost - - the host that was detected as down

onHostRestored

public void onHostRestored(CassandraHost cassandraHost)

Description copied from interface: ConnectionManagerListener

fires when a CassandraHost was restored by the CassandraHostRetryService CassandraHostRetryService must be enabled for this event to fire

Specified by:

onHostRestored in interface ConnectionManagerListener

Parameters:

cassandraHost - - the restored host

onAllHostsDown

public void onAllHostsDown()

Description copied from interface: ConnectionManagerListener

fires when the CassandraHostRetryService detects that all nodes are down CassandraHostRetryService must be enabled for this event to fire

Specified by:

onAllHostsDown in interface ConnectionManagerListener

onSuspendHost

public void onSuspendHost(CassandraHost cassandraHost,
                 boolean removed)

Description copied from interface: ConnectionManagerListener

fired when a suspend action was triggered on the host

Specified by:

onSuspendHost in interface ConnectionManagerListener

Parameters:

cassandraHost - - the host to be suspended

removed - - true if was successfully suspended

onUnSuspendHost

public void onUnSuspendHost(CassandraHost cassandraHost,
                   boolean readded)

Description copied from interface: ConnectionManagerListener

fired when an un-suspend action was triggered on the host

Specified by:

onUnSuspendHost in interface ConnectionManagerListener

Parameters:

cassandraHost - - the host to be un-suspended

readded - - true if was successfully un-suspended

onAddHost

public void onAddHost(CassandraHost cassandraHost,
             boolean added,
             String errorMessage,
             Exception e)

Description copied from interface: ConnectionManagerListener

fires when an action to add CassandraHost was triggered

Specified by:

onAddHost in interface ConnectionManagerListener

Parameters:

cassandraHost - - the host to add

added - - true if added successfully

errorMessage - - the message in case of an error (can be null otherwise)

e - - exception when trying to add

onRemoveHost

public void onRemoveHost(CassandraHost cassandraHost,
                boolean removed,
                String message)

Description copied from interface: ConnectionManagerListener

fires when an action to remove CassandraHost was triggered

Specified by:

onRemoveHost in interface ConnectionManagerListener

Parameters:

cassandraHost - - the host to remove

removed - - true if successfully removed

message - - the message received with the action

getName

public String getName()

Specified by:

getName in interface ConnectionManagerListener

Returns:

the name of the listener