@Private @Unstable

Package org.apache.hadoop.fs.impl.prefetch

block caching for use in object store clients.

Interface Summary

Interface	Description
BlockCache	Provides functionality necessary for caching blocks of data read from FileSystem.
PrefetchingStatistics

Class Summary

Class	Description
BlockData	Holds information about blocks of data in a file.
BlockManager	Provides read access to the underlying file one block at a time.
BlockManagerParameters	This class is used to provide parameters to BlockManager.
BlockOperations	Block level operations performed on a file.
BlockOperations.End
BlockOperations.Operation
BoundedResourcePool<T>	Manages a fixed pool of resources.
BufferData	Holds the state of a ByteBuffer that is in use by CachingBlockManager.
BufferPool	Manages a fixed pool of ByteBuffer instances.
CachingBlockManager	Provides read access to the underlying file one block at a time.
EmptyPrefetchingStatistics	Empty implementation of the prefetching statistics interface.
ExecutorServiceFuturePool	A FuturePool implementation backed by a java.util.concurrent.ExecutorService.
FilePosition	Provides functionality related to tracking the position within a file.
PrefetchConstants	Constants used by prefetch implementations.
ResourcePool<T>	Manages a fixed pool of resources.
Retryer	Provides retry related functionality.
SingleFilePerBlockCache	Provides functionality necessary for caching blocks of data read from FileSystem.
Validate	A superset of Validate class in Apache commons lang3.

Enum Summary

Enum	Description
BlockOperations.Kind	Operation kind.
BufferData.State