de.lmu.ifi.dbs.elki.database.datastore
Class DataStoreEvent

java.lang.Object
  java.util.EventObject
      de.lmu.ifi.dbs.elki.database.datastore.DataStoreEvent

All Implemented Interfaces:

Serializable

public class DataStoreEvent
extends EventObject

Encapsulates information describing changes, i.e. updates, insertions, and / or deletions in a DataStore, and used to notify all subscribed DataStoreListener of the change.

See Also:

DataStore, DataStoreListener, Serialized Form

Nested Class Summary

static class

DataStoreEvent.Type Available event types.

Field Summary

private Map<DataStoreEvent.Type,DBIDs>	objects The objects that were changed in the DataStore mapped by the type of change.
private static long	serialVersionUID Serialization ID since Java EventObjects are expected to be serializable.

Fields inherited from class java.util.EventObject

source

Constructor Summary

DataStoreEvent(Object source, Map<DataStoreEvent.Type,DBIDs> objects)
Used to create an event when objects have been updated in, inserted into, and / or removed from the specified DataStore.

Method Summary

Map<DataStoreEvent.Type,DBIDs>	getObjects() Returns the objects that have been changed and the type of change.
Set<DataStoreEvent.Type>	getTypes() Returns the types of change this event consists of.

Methods inherited from class java.util.EventObject

getSource, toString

Methods inherited from class java.lang.Object

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

Field Detail

serialVersionUID

private static final long serialVersionUID

Serialization ID since Java EventObjects are expected to be serializable.

See Also:

Constant Field Values

objects

private final Map<DataStoreEvent.Type,DBIDs> objects

The objects that were changed in the DataStore mapped by the type of change.

Constructor Detail

DataStoreEvent

public DataStoreEvent(Object source,
                      Map<DataStoreEvent.Type,DBIDs> objects)

Used to create an event when objects have been updated in, inserted into, and / or removed from the specified DataStore.

Parameters:

source - the object responsible for generating the event

objects - the objects that have been changed mapped by the type of change

See Also:

DataStoreEvent.Type.INSERT, DataStoreEvent.Type.DELETE, DataStoreEvent.Type.UPDATE

Method Detail

getTypes

public Set<DataStoreEvent.Type> getTypes()

Returns the types of change this event consists of.

Returns:

the types of this event

See Also:

DataStoreEvent.Type.INSERT, DataStoreEvent.Type.DELETE, DataStoreEvent.Type.UPDATE

getObjects

public Map<DataStoreEvent.Type,DBIDs> getObjects()

Returns the objects that have been changed and the type of change.

Returns:

the objects that have been changed