Package org.apache.asterix.metadata.feeds

Interface Summary

Interface	Description
IAdapterExecutor
IFeedAdapterFactory
IFeedMessage
IPullBasedFeedAdapter
ITypedAdapterFactory
MessageListener.IMessageAnalyzer
RemoteSocketMessageListener.IMessageAnalyzer

Class Summary

Class	Description
AbstractDatasourceAdapter	Represents the base class that is required to be extended by every implementation of the IDatasourceAdapter interface.
AbstractFeedDatasourceAdapter
AdapterExecutor
AdapterIdentifier	A unique identifier for a data source adapter.
AdapterRuntimeManager
BuiltinFeedPolicies
CollectTransformFeedFrameWriter
EndFeedMessage	A feed control message indicating the need to end the feed.
ExternalDataScanOperatorDescriptor
FeedActivityIdFactory
FeedCollectOperatorDescriptor	FeedCollectOperatorDescriptor is responsible for ingesting data from an external source.
FeedCollectOperatorNodePushable	The runtime for @see{FeedIntakeOperationDescriptor}
FeedConnectionManager	An implementation of the IFeedManager interface.
FeedFrameTupleDecorator
FeedIntakeOperatorDescriptor	An operator responsible for establishing connection with external data source and parsing, translating the received content.It uses an instance of feed adaptor to perform these functions.
FeedIntakeOperatorNodePushable	The runtime for @see{FeedIntakeOperationDescriptor}.
FeedLifecycleEventSubscriber
FeedManagerElectMessage	A feed control message containing the altered values for adapter configuration parameters.
FeedMessage	A control message that can be sent to the runtime instance of a feed's adapter.
FeedMessageOperatorDescriptor	Sends a control message to the registered message queue for feed specified by its feedId.
FeedMessageOperatorNodePushable	Runtime for the FeedMessageOpertorDescriptor.
FeedMetaComputeNodePushable
FeedMetaNodePushable
FeedMetaOperatorDescriptor	FeedMetaOperatorDescriptor is a wrapper operator that provides a sanboox like environment for an hyracks operator that is part of a feed ingestion pipeline.
FeedMetaStoreNodePushable
FeedPolicyEnforcer
FeedSubscriptionManager
FeedUtil	A utility class for providing helper functions for feeds
FeedWorkManager	Handles asynchronous execution of feed management related tasks.
MessageListener
PrepareStallMessage	A feed control message indicating the need to end the feed.
RemoteSocketMessageListener
SocketMessageListener	Listens for messages at a configured port and redirects them to a an instance of IMessageReceiver.
TerminateDataFlowMessage
XAQLFeedMessage	A feed control message indicating the need to execute a give AQL.

Enum Summary

Enum	Description
IFeedMessage.MessageType