Package uk.ac.ed.epcc.safe.accounting.allocations

Classes supporting resource allocation.

See: Description

Interface Summary

Interface	Description
Allocation
AllocationListener<T extends AllocationFactory.AllocationRecord>	Interface for objects that need to track changes to allocations or may want to veto certain operations
AllocationManager<K,T extends Allocation>	AllocationManagers are the UsageProducer classes for Allocations and provide transitions to edit the allocations

Class Summary

Class	Description
AbstractAllocationListener<T extends AllocationFactory.AllocationRecord>
AllocationFactory<T extends AllocationFactory.AllocationRecord>	An Allocation represents a resource allocated rather than a resource consumed.
AllocationFactory.AllocationRecord
AllocationKey<T extends UsageRecord>	Key object for AllocationFactory transitions
AllocationList
AllocationPeriod
AllocationPeriodTransitionCreator
AllocationPeriodTransitionProvider<T extends Allocation,K>	Provide a filtered view of allocations from a nested AllocationManager.
AllocationTableCreator	Class to create AllocationManager accounting tables
PeriodKey
SequenceAllocationFactory<T extends AllocationFactory.AllocationRecord>	A AllocationFactory where the allocations form non-overlapping sequences
ViewPeriod	This class represents the current time period that is being looked at.

Exception Summary

Exception	Description
ListenerObjection	Exception thrown when a AllocationListener wishes to veto a proposed operation

Package uk.ac.ed.epcc.safe.accounting.allocations Description

Classes supporting resource allocation. Note that allocation mechanisms may be purely informational as in a fair-share system, or they may involve an charging mechanism applied when the records are parsed.

The key observation here is that Allocations are UsageRecords. Except that they record allocated usage rather than actual usage. Many of the same types of reports might be made with allocation as with usage.