@License(name="Apache License 2.0", uri="https://www.apache.org/licenses/LICENSE-2.0")

Package org.microbean.kubernetes.controller

Provides classes and interfaces assisting in the writing of Kubernetes controllers.

See: Description

Interface Summary

Interface	Description
EventCache<T extends HasMetadata>	A minimalistic interface indicating that its implementations cache Events representing Kubernetes resources.

Class Summary

Class	Description
AbstractEvent<T extends HasMetadata>	An abstract EventObject that represents another event that has occurred to a Kubernetes resource, usually as found in an EventCache implementation.
Controller<T extends HasMetadata>	A convenient combination of a Reflector, a VersionWatchable and Listable implementation, an (internal) EventQueueCollection, a Map of known Kubernetes resources and an EventQueue Consumer that mirrors Kubernetes cluster events into a collection of EventQueues and arranges for their consumption and processing.
Event<T extends HasMetadata>	An AbstractEvent that represents another event that has occurred to a Kubernetes resource, usually as found in an EventCache implementation.
EventDistributor<T extends HasMetadata>	A ResourceTrackingEventQueueConsumer that consumes EventQueue instances by feeding each AbstractEvent in the EventQueue being consumed to Consumers of AbstractEvents that have been registered.
EventQueue<T extends HasMetadata>	A publicly-unmodifiable AbstractCollection of AbstractEvents produced by an EventQueueCollection.
EventQueueCollection<T extends HasMetadata>	An EventCache that temporarily stores Events in EventQueues, one per named Kubernetes resource, and provides a means for processing those queues.
EventQueueCollection.SynchronizationAwaitingPropertyChangeListener	A PropertyChangeListener specifically designed for reacting to a change in the synchronization status of an EventQueueCollection as represented by the firing of its synchronized bound Java Beans property.
HasMetadatas	A utility class for working with HasMetadata resources.
Reflector<T extends HasMetadata>	A pump of sorts that continuously "pulls" logical events out of Kubernetes and adds them to an EventCache so as to logically "reflect" the contents of Kubernetes into the cache.
ResourceTrackingEventQueueConsumer<T extends HasMetadata>	A Consumer of EventQueues that tracks the Kubernetes resources they contain before allowing subclasses to process their individual Events.
SynchronizationEvent<T extends HasMetadata>	An AbstractEvent that describes an EventCache synchronization event.

Enum Summary

Enum	Description
AbstractEvent.Type	The type of an AbstractEvent.

Exception Summary

Exception	Description
EventQueueCollection.TransientException	A RuntimeException indicating that a Consumer started by an EventQueueCollection has encountered an error that might not happen if the consumption operation is retried.

Package org.microbean.kubernetes.controller Description

Provides classes and interfaces assisting in the writing of Kubernetes controllers.

Author:

Laird Nelson

See Also:

Controller, EventCache, EventQueueCollection, EventQueue, Reflector