info.pppc.base.lease

Interface ILeaseRegistry

All Known Implementing Classes:

LeaseRegistry, LeaseRegistryProxy

public interface ILeaseRegistry

The remote interface of the lease registry. This interface is for internal use only. It provides methods to refresh the leases on the local system and methods to signal a remote release of a certain lease.

Author:

Mac

Field Summary

Fields

Modifier and Type	Field and Description
static ObjectID	REGISTRY_ID The object id under which the remote lease registry will be exported.

Method Summary

Methods

Modifier and Type	Method and Description
void	remove(SystemID system, Lease lease) Releases the observer that observes the specified object identifier on the specified system.
void	unhook(SystemID system, Lease lease) Tells the local lease listener that the specified system has unhooked the lease and that it might be released.
java.util.Vector	update(SystemID system, java.util.Vector leases) Called by a remote lease registry.

Field Detail

REGISTRY_ID

static final ObjectID REGISTRY_ID

The object id under which the remote lease registry will be exported.

Method Detail

update

java.util.Vector update(SystemID system,
                      java.util.Vector leases)
                        throws InvocationException

Called by a remote lease registry. This method refreshes the leases with the specified local leases passed as parameter to this method. The return value will be a vector of leases that could not be refreshed because they have timed out.

Parameters:

system - The system that is refreshing the leases.

leases - The leases whose lease should be extended.

Returns:

The leases that could not be extended since they have been removed locally.

Throws:

InvocationException - Thrown if the call failed.

unhook

void unhook(SystemID system,
          Lease lease)
            throws InvocationException

Tells the local lease listener that the specified system has unhooked the lease and that it might be released.

Parameters:

system - The system that is making the unhook call.

lease - The lease that has been unhooked by the remote system.

Throws:

InvocationException - Thrown if the call failed.

remove

void remove(SystemID system,
          Lease lease)
            throws InvocationException

Releases the observer that observes the specified object identifier on the specified system.

Parameters:

system - The source system that released the lease.

lease - The lease that has been removed on the originating system.

Throws:

InvocationException - Thrown if the call failed.