rice.p2p.replication.manager
Interface ReplicationManagerClient

All Known Implementing Classes:

PastImpl, ReplicationManagerRegrTest.TestReplicationManagerClient

public interface ReplicationManagerClient

Method Summary

boolean	exists(Id id) This upcall should return whether or not the given id is currently stored by the client.
void	fetch(Id id, Continuation command) This upcall is invoked to tell the client to fetch the given id, and to call the given command with the boolean result once the fetch is completed.
void	remove(Id id, Continuation command) This upcall is to notify the client that the given id can be safely removed from the storage.
IdSet	scan(IdRange range) This upcall should return the set of keys that the application currently stores in this range.

Method Detail

fetch

public void fetch(Id id,
                  Continuation command)

This upcall is invoked to tell the client to fetch the given id, and to call the given command with the boolean result once the fetch is completed. The client *MUST* call the command at some point in the future, as the manager waits for the command to return before continuing.

Parameters:

id - The id to fetch

remove

public void remove(Id id,
                   Continuation command)

This upcall is to notify the client that the given id can be safely removed from the storage. The client may choose to perform advanced behavior, such as caching the object, or may simply delete it.

Parameters:

id - The id to remove

scan

public IdSet scan(IdRange range)

This upcall should return the set of keys that the application currently stores in this range. Should return a empty IdSet (not null), in the case that no keys belong to this range.

Parameters:

range - the requested range

exists

public boolean exists(Id id)

This upcall should return whether or not the given id is currently stored by the client.

Parameters:

id - The id in question

Returns:

Whether or not the id exists