Package org.apache.druid.segment.realtime.appenderator

Interface Summary

Interface	Description
Appenderator	An Appenderator indexes data.
AppenderatorConfig
AppenderatorDriverSegmentLockHelper	Lock helper for StreamAppenderatorDriver.
AppenderatorFactory
AppenderatorsManager	This interface defines entities that create and manage potentially multiple Appenderator instances.
SegmentAllocator
TransactionalSegmentPublisher
UsedSegmentChecker

Class Summary

Class	Description
Appenderator.AppenderatorAddResult	Result of Appenderator.add(org.apache.druid.segment.realtime.appenderator.SegmentIdWithShardSpec, org.apache.druid.data.input.InputRow, com.google.common.base.Supplier<org.apache.druid.data.input.Committer>) containing following information - SegmentIdWithShardSpec - identifier of segment to which rows are being added - int - positive number indicating how many summarized rows exist in this segment so far and - boolean - true if is set to false and persist is required; false otherwise
AppenderatorDriverAddResult	Result of BaseAppenderatorDriver#append).
AppenderatorDriverMetadata
AppenderatorImpl
AppenderatorPlumber
AppenderatorPlumberSchool
Appenderators
BaseAppenderatorDriver	A BaseAppenderatorDriver drives an Appenderator to index a finite stream of data.
BatchAppenderatorDriver	This class is specifialized for batch ingestion.
Committed
DefaultOfflineAppenderatorFactory
DefaultRealtimeAppenderatorFactory
DummyForInjectionAppenderatorsManager	This implementation is needed because Overlords and MiddleManagers operate on Task objects which can require an AppenderatorsManager to be injected.
PeonAppenderatorsManager	Manages Appenderators for tasks running within a CliPeon process.
SegmentIdWithShardSpec	SegmentId with additional ShardSpec info.
SegmentPublisherHelper
SegmentsAndCommitMetadata
SegmentWithState
SinkQuerySegmentWalker	Query handler for indexing tasks.
StreamAppenderatorDriver	This class is specialized for streaming ingestion.
UnifiedIndexerAppenderatorsManager	Manages Appenderator instances for the CliIndexer task execution service, which runs all tasks in a single process.
UnifiedIndexerAppenderatorsManager.LimitedPoolIndexMerger	This wrapper around IndexMerger limits concurrent calls to the merge/persist methods used by AppenderatorImpl with a shared executor service.

Enum Summary

Enum	Description
SegmentWithState.SegmentState	Segment state transition is different in BatchAppenderatorDriver and StreamAppenderatorDriver.

Exception Summary

Exception	Description
SegmentNotWritableException