| Interface | Description |
|---|---|
| Landlord |
Interface that granters of leases must implement in order to work
with the
LandlordLease implementation of the
Lease interface. |
| LeasedResource |
Server side representation of a lease
|
| LeasePeriodPolicy |
Interface for objects that define what policy to use
when calculating lease grants and renewals.
|
| LocalLandlord |
Interface that defines the basic landlord primitives (renew and
cancel) as local methods.
|
| Class | Description |
|---|---|
| ConstrainableLandlordLease |
Constrainable sub-class of
LandlordLease. |
| ConstrainableLandlordLeaseMap |
Constrainable sub-class of
LandlordLeaseMap. |
| FixedLeasePeriodPolicy |
Simple implementation of
LeasePeriodPolicy that grants
lease times based on a fixed default and maximum lease. |
| Landlord.RenewResults |
Simple class that holds return values of
the
Landlord.renewAll method. |
| LandlordLease |
Basic implementation of
net.jini.core.lease.Lease that works
with the the Landlord protocol. |
| LandlordLeaseMap |
Implementation of
LeaseMap for LandlordLease. |
| LandlordProxyVerifier |
This class defines a trust verifier for the proxies defined
in the landlord package.
|
| LandlordUtil |
Static methods useful for implementing landlords.
|
| LeaseFactory |
Factory for
LandlordLease instances. |
| LeasePeriodPolicy.Result |
Simple class that holds a pair of times, the
new expiration and duration for a lease.
|
| SystemTimeFixedLeasePeriodPolicy |
Overrided
FixedLeasePeriodPolicy.currentTime() by using com.j_spaces.kernel.time.SystemTime#timeMills() |
This is a utility for services implementing leases. The Landlord is the basic interface that defines the
utility. A service that exports leases implements the
Landlord interface, which is used for callbacks by the utility
classes when a lease's status changes. Each leased resource is identified
by a landlord-generated Uuid called a cookie. The
Lease object handed to the client contains the
cookie, and that cookie is used when communicating with the landlord about
the lease.
The utility classes define a lease object type LandlordLease. The Lease objects
handed to clients will be of this type. LandlordLease objects
talk to the Landlord about the lease. A factory class, LeaseFactory, can be used to generate new
leases. The package also contains a constrainable implementation of
Lease, ConstrainableLandlordLease, that implements
RemoteMethodControl and supports proxy
trust verification (when used with LandlordProxyVerifier) and suitable implementations
of LeaseMap. It also contains utilities and
interfaces to assist you in implementing the Landlord
interfaces: LandlordUtil, LeasePeriodPolicy, and FixedLeasePeriodPolicy.
Using the classes in this package, you can write services that export leases and handle primarily those factors that are unique to your service, letting the utility classes do generic lease-related work.
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