## Package org.h2.store

Storage abstractions, such as a file with a cache, or a class to convert values to a byte array and vice versa.

See:
Description

Interface Summary
DataHandler: A data handler contains a number of callback methods.
InDoubtTransaction: Represents an in-doubt transaction (a transaction in the prepare phase).
LobStorageInterface: A mechanism to store and retrieve lob data.

Class Summary
Data: This class represents a byte buffer that contains persistent data of a page.
DataReader: This class is backed by an input stream and supports reading values and variable size data.
FileLister: Utility class to list the files of a database.
FileLock: The file lock is used to lock a database so that only one process can write to it.
FileStore: This class is an abstraction of a random access file.
FileStoreInputStream: An input stream that is backed by a file store.
FileStoreOutputStream: An output stream that is backed by a file store.
LobStorageBackend: This class stores LOB objects in the database.
LobStorageBackend.CountingReaderInputStream: An input stream that reads the data from a reader.
LobStorageFrontend: This class stores LOB objects in the database.
Page: A page.
PageFreeList: The list of free pages of a page store.
PageInputStream: An input stream that reads from a page store.
PageLog: Transaction log mechanism.
PageOutputStream: An output stream that writes into a page store.
PageStore: This class represents a file that is organized as a number of pages.
PageStoreInDoubtTransaction: Represents an in-doubt transaction (a transaction in the prepare phase).
PageStreamData: A data page of a stream.
PageStreamTrunk: A trunk page of a stream.
RecoverTester: A tool that simulates a crash while writing to the database, and then verifies the database doesn't get corrupt.
WriterThread: The writer thread is responsible to flush the transaction transaction log from time to time.

## Package org.h2.store Description

Storage abstractions, such as a file with a cache, or a class to convert values to a byte array and vice versa.