Package org.apache.lens.server.api.driver

Interface Summary

Interface	Description
DriverQueryHook	Drivers should initialize a DriverQueryHook object in their initialization and expose it via LensDriver.getQueryHook().
DriverSelector	The Interface DriverSelector.
LensDriver	The Interface LensDriver.
QueryCompletionListener	The listener interface for receiving queryCompletion events.

Class Summary

Class	Description
AbstractLensDriver	Abstract class for Lens Driver Implementations.
DriverEvent	The Class DriverEvent.
DriverQueryPlan	The Class DriverQueryPlan.
DriverQueryStatus	The Class DriverQueryStatus.
DriverSessionStarted	The Class DriverSessionStarted.
InMemoryResultSet	The Class InMemoryResultSet.
LensResultSet	Result set returned by driver.
LensResultSetMetadata	The Class LensResultSetMetadata.
MinQueryCostSelector
NoOpDriverQueryHook
PartiallyFetchedInMemoryResultSet	This is a wrapper over InMemoryResultSet which pre-fetches requested number of rows in memory.
PersistentResultSet	The Class PersistentResultSet.
WeightedQueryCostDriverSelector

Enum Summary

Enum	Description
DriverQueryPlan.ExecMode	The Enum ExecMode.
DriverQueryPlan.ScanMode	The Enum ScanMode.
DriverQueryStatus.DriverQueryState	The Enum DriverQueryState.