Package com.bigdata.bfs

This package provides a scale-out content repository (aka distributed file system) suitable as the backend for a REST-ful service using the bigdata architecture.

See: Description

Interface Summary

Interface	Description
BigdataFileSystem.Options	Configuration options.
Document	Document model interface for operations on the IContentRepository.
DocumentHeader	Document header interface for Documents stored in the IContentRepository.
IContentRepository	Deprecated This is part of the BFS support.

Class Summary

Class	Description
AbstractRepositoryTestCase
AtomicBlockAppendProc	Atomic append of a single block to a file version.
AtomicBlockWriteProc	Atomic write of a single block for a file version.
BigdataFileSystem	A distributed file system with extensible metadata and atomic append implemented using the bigdata scale-out architecture.
BlobOverflowHandler	Copies blocks onto the target store during overflow handling.
BlockIdentifierIterator	Extracts the block identifier from the key.
DocumentHeaderImpl	Flyweight DocumentHeader implementation.
DocumentImpl	Flyweight document implementation.
FileMetadataSchema	The schema for metadata about file versions stored in the BigdataFileSystem.
FileVersionDeleter	A procedure that performs a key range scan, marking all non-deleted versions within the key range as deleted (by storing a null property value for the FileMetadataSchema.VERSION).
FileVersionInputStream	Reads from blocks visited by a range scan for a file and version.
FileVersionOutputStream	Class buffers up to a block of data at a time and flushes blocks using an atomic append operation on the identifier file version.
GlobalFileSystemHelper	Helper class.
RepositoryDocumentImpl	A read-only view of a Document that has been read from a BigdataFileSystem.
TestAll	Aggregates test suites in increase dependency order.
TestAppendBlock	Test atomic append operations on the file data index for the BigdataFileSystem.
TestCopyStream	Unit tests for copying streams into the repository and reading them back.
TestFileMetadataIndex	Test operations on the file metadata index for the BigdataFileSystem.
TestFileVersionOutputStream	Tests some specifics of the FileVersionOutputStream.
TestRandomBlockOps	Unit tests for random block IO include read, write, overwrite (aka update), and delete.
TestRandomBlockOps.StressTest	Stress test helper class.
TestRandomBlockOps.TestOp	Tests of the Op test helper class.
TestRangeDelete	Test suite for BigdataFileSystem.deleteAll(String, String).
TestRangeScan	Test suite for BigdataFileSystem.getDocumentHeaders(String, String).

Exception Summary

Exception	Description
ExistsException	Thrown when the identified document already exists.
NotFoundException	Thrown when the identified document was not found.

Package com.bigdata.bfs Description

This package provides a scale-out content repository (aka distributed file system) suitable as the backend for a REST-ful service using the bigdata architecture. Content is arbitrary byte[]s broken down into chunks of up to 64M each. Basic and extensible metadata may be stored for any given item of content. Atomic operations on chunks are provided for reading, writing, deleting, etc. The architecture is designed for interoperation with map / reduce style processing.