Package org.apache.druid.metadata

Interface Summary

Interface	Description
MetadataRuleManager
MetadataRuleManagerProvider
MetadataSegmentPublisher
MetadataSegmentPublisherProvider
MetadataStorageProvider
MetadataSupervisorManager
SegmentPublisherProvider
SegmentsMetadataManager	The difference between this class and org.apache.druid.sql.calcite.schema.MetadataSegmentView is that this class resides in Coordinator's memory, while org.apache.druid.sql.calcite.schema.MetadataSegmentView resides in Broker's memory.
SegmentsMetadataManagerProvider

Class Summary

Class	Description
BasicDataSourceExt	This class exists so that MetadataStorageConnectorConfig is asked for password every time a brand new connection is established with DB.
DerbyMetadataStorageActionHandler<EntryType,StatusType,LogType,LockType>
DerbyMetadataStorageActionHandlerFactory
IndexerSQLMetadataStorageCoordinator
IndexerSQLMetadataStorageCoordinator.DataStoreMetadataUpdateResult
LockFilterPolicy	Specifies a policy to filter active locks held by a datasource
MetadataRuleManagerConfig
MetadataStorage
MySQLMetadataStorageActionHandler<EntryType,StatusType,LogType,LockType>
MySQLMetadataStorageActionHandlerFactory
NoopMetadataStorageProvider
PostgreSQLMetadataStorageActionHandler<EntryType,StatusType,LogType,LockType>
PostgreSQLMetadataStorageActionHandlerFactory
ReplaceTaskLock	Details of a REPLACE lock held by a batch supervisor task.
SegmentsMetadataManagerConfig
SQLFirehoseDatabaseConnector
SQLMetadataConnector
SQLMetadataRuleManager
SQLMetadataRuleManagerProvider
SQLMetadataSegmentPublisher
SQLMetadataSegmentPublisherProvider
SQLMetadataStorageActionHandler<EntryType,StatusType,LogType,LockType>
SQLMetadataStorageActionHandlerFactory
SQLMetadataSupervisorManager
SqlSegmentsMetadataManager
SqlSegmentsMetadataManagerProvider
SqlSegmentsMetadataQuery	An object that helps SqlSegmentsMetadataManager and IndexerSQLMetadataStorageCoordinator make queries to the metadata store segments table.
SQLServerMetadataStorageActionHandler<EntryType,StatusType,LogType,LockType>
SQLServerMetadataStorageActionHandlerFactory

Enum Summary

Enum	Description
SortOrder	Specifies the sort order when doing metadata store queries.

Exception Summary

Exception	Description
RetryTransactionException	Exception thrown by SQL connector code when it wants a transaction to be retried.
UnknownSegmentIdsException	Deprecated. Usages of this exception will be replaced by the new DruidException in a future release.