org.glassfish.jersey.examples.feedcombiner.store

Interface ObservableDataStore

All Superinterfaces:

InMemoryDataStore

All Known Implementing Classes:

ReadWriteLockDataStore

public interface ObservableDataStore
extends InMemoryDataStore

A Datastore which implements this interface is able to notify all observers and react to an adding or a removing entities.

The order in which notifications will be delivered to multiple observers is not specified.

Author:

Petr Bouda (petr.bouda at oracle.com)

Method Summary

Modifier and Type	Method and Description
void	addObserver(DataStoreObserver observer) Adds an observer to the set of observers for this observable object ObservableDataStore.
void	deleteObserver(DataStoreObserver observer) Deletes an observer from the set of observers of this object.

Methods inherited from interface org.glassfish.jersey.examples.feedcombiner.store.InMemoryDataStore

get, load, put, save

Method Detail

addObserver

void addObserver(DataStoreObserver observer)

Adds an observer to the set of observers for this observable object ObservableDataStore.

Parameters:

observer - an observer to be added.

Throws:

NullPointerException - if the parameter o is null.

deleteObserver

void deleteObserver(DataStoreObserver observer)

Deletes an observer from the set of observers of this object.

Passing null to this method will have no effect.

Parameters:

observer - the observer to be deleted.