com.amazonaws.services.kinesis.leases.interfaces

Interface LeaseSelector<T extends Lease>

All Known Implementing Classes:

GenericLeaseSelector

public interface LeaseSelector<T extends Lease>

LeaseSelector abstracts away the lease selection logic from the application code that's using leasing. It owns filtering of the leases to be taken.

Method Summary

Modifier and Type	Method and Description
int	getLeaseCountThatCanBeTaken(Collection<T> allLeases) Provides the number of leases that should be taken by the worker.
Set<T>	getLeasesToTakeFromExpiredLeases(List<T> expiredLeases, int numLeasesToReachTarget) Provides the list of leases to be taken.

Method Detail

getLeasesToTakeFromExpiredLeases

Set<T> getLeasesToTakeFromExpiredLeases(List<T> expiredLeases,
                                        int numLeasesToReachTarget)

Provides the list of leases to be taken.

Parameters:

expiredLeases - list of leases that are currently expired

numLeasesToReachTarget - the number of leases to be taken

Returns:

getLeaseCountThatCanBeTaken

int getLeaseCountThatCanBeTaken(Collection<T> allLeases)

Provides the number of leases that should be taken by the worker.

Parameters:

allLeases - list of all existing leases

Returns: