Package org.apache.jena.dboe.base.file

Interface Summary

Interface	Description
BinaryDataFile	An append-only, read-anywhere, binary file.
BlockAccess	Interface to concrete storage - read and write Blocks, addressed by id.
BufferChannel	Interface to storage : a simplified version of FileChannel.

Class Summary

Class	Description
BinaryDataFileMem	Implementation of BinaryDataFile in memory for testing and development use.
BinaryDataFileRandomAccess	Implementation of BinaryDataFile using RandomAccessFile.
BinaryDataFileSync	Add synchronization to all BinaryDataFile operations.
BinaryDataFileWrapper
BinaryDataFileWriteBuffered	Implementation of BinaryDataFile adding write buffering to another BinaryDataFile file, such as a BinaryDataFileRandomAccess.
BlockAccessBase	Support for a disk file backed FileAccess
BlockAccessByteArray	FileAccess interface backed by a byte array.
BlockAccessDirect
BlockAccessMapped	FileAccess for a file, using memory mapped I/O
BlockAccessMem	File access layer that simulates a disk in-memory - for testing, not written for efficiency.
BufferChannelFile
BufferChannelMem
ChannelManager
FileFactory
FileSet	Naming metadata management to a collection of related files (same directory, same basename within directory, various extensions).
Location	Wrapper for a file system directory; can create filenames in that directory.
MetaFile	Abstraction and many convenience operations on metadata.
ProcessFileLock	A simple packaging around a FileLock.
SegmentedMemBuffer	A segmented, expanding buffer of bytes.

Exception Summary

Exception	Description
AlreadyLocked	Exception throws when an attempt to take a ProcessFileLock with a call of ProcessFileLock.lockEx() is made and the lock is already held.
FileException