Package org.apache.cassandra.schema

Class SchemaChangeNotifier

java.lang.Object

org.apache.cassandra.schema.SchemaChangeNotifier

public class SchemaChangeNotifier
extends Object

Registers schema change listeners and sends the notifications. The interface of this class just takes the high level keyspace metadata changes. It iterates over all keyspaces elements and distributes appropriate notifications about changes around those elements (tables, views, types, functions).

Constructor Summary

Constructors

Constructor	Description
SchemaChangeNotifier()

Method Summary

Modifier and Type	Method	Description
void	notifyKeyspaceAltered(KeyspaceMetadata.KeyspaceDiff delta, boolean dropData)
void	notifyKeyspaceCreated(KeyspaceMetadata keyspace)
void	notifyKeyspaceDropped(KeyspaceMetadata keyspace, boolean dropData)
void	notifyPreChanges(SchemaTransformation.SchemaTransformationResult transformationResult)
void	registerListener(SchemaChangeListener listener)
void	unregisterListener(SchemaChangeListener listener)

Methods inherited from class java.lang.Object

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

Constructor Details

SchemaChangeNotifier

public SchemaChangeNotifier()

Method Details

registerListener

public void registerListener(SchemaChangeListener listener)

unregisterListener

public void unregisterListener(SchemaChangeListener listener)

notifyKeyspaceCreated

public void notifyKeyspaceCreated(KeyspaceMetadata keyspace)

notifyKeyspaceAltered

public void notifyKeyspaceAltered(KeyspaceMetadata.KeyspaceDiff delta,
 boolean dropData)

notifyKeyspaceDropped

public void notifyKeyspaceDropped(KeyspaceMetadata keyspace,
 boolean dropData)

notifyPreChanges

public void notifyPreChanges(SchemaTransformation.SchemaTransformationResult transformationResult)