Package org.syncany.database

Class MemoryDatabase

java.lang.Object

org.syncany.database.MemoryDatabase

public class MemoryDatabase
extends java.lang.Object

The database represents the internal file and chunk index of the application. It can be used to reference or load a full local database (local client) or a remote database (from a delta database file of another clients).

A database consists of a sorted list of DatabaseVersions, i.e. it is a collection of changes to the local file system.

For convenience, the class also offers a set of functionality to select objects from the current accumulated database. Examples include getChunk(), getContent() and getMultiChunk().

To allow this convenience, a few caches are kept in memory, and updated whenever a database version is added or removed.

See Also:

DatabaseVersion

Constructor Summary

Constructors

Constructor	Description
MemoryDatabase()

Method Summary

Modifier and Type	Method	Description
void	addDatabaseVersion(DatabaseVersion databaseVersion)
java.lang.Object	getChunk(ChunkEntry.ChunkChecksum checksum)
FileContent	getContent(FileContent.FileChecksum checksum)
DatabaseVersion	getDatabaseVersion(VectorClock vectorClock)
java.util.List<DatabaseVersion>	getDatabaseVersions()
java.util.Collection<PartialFileHistory>	getFileHistories()
java.util.List<PartialFileHistory>	getFileHistories(FileContent.FileChecksum fileContentChecksum)
PartialFileHistory	getFileHistory(java.lang.String relativeFilePath)
PartialFileHistory	getFileHistory(PartialFileHistory.FileHistoryId fileId)
DatabaseVersion	getLastDatabaseVersion()
MultiChunkEntry	getMultiChunk(MultiChunkEntry.MultiChunkId id)
MultiChunkEntry.MultiChunkId	getMultiChunkIdForChunk(ChunkEntry.ChunkChecksum chunk)	Get a multichunk that this chunk is contained in.
java.util.Collection<MultiChunkEntry>	getMultiChunks()
void	removeDatabaseVersion(DatabaseVersion databaseVersion)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MemoryDatabase

public MemoryDatabase()

Method Detail

getLastDatabaseVersion

public DatabaseVersion getLastDatabaseVersion()

getDatabaseVersions

public java.util.List<DatabaseVersion> getDatabaseVersions()

getDatabaseVersion

public DatabaseVersion getDatabaseVersion(VectorClock vectorClock)

getContent

public FileContent getContent(FileContent.FileChecksum checksum)

getChunk

public java.lang.Object getChunk(ChunkEntry.ChunkChecksum checksum)

getMultiChunk

public MultiChunkEntry getMultiChunk(MultiChunkEntry.MultiChunkId id)

getMultiChunkIdForChunk

public MultiChunkEntry.MultiChunkId getMultiChunkIdForChunk(ChunkEntry.ChunkChecksum chunk)

Get a multichunk that this chunk is contained in.

getFileHistory

public PartialFileHistory getFileHistory(java.lang.String relativeFilePath)

getFileHistories

public java.util.List<PartialFileHistory> getFileHistories(FileContent.FileChecksum fileContentChecksum)

getFileHistory

public PartialFileHistory getFileHistory(PartialFileHistory.FileHistoryId fileId)

getFileHistories

public java.util.Collection<PartialFileHistory> getFileHistories()

getMultiChunks

public java.util.Collection<MultiChunkEntry> getMultiChunks()

addDatabaseVersion

public void addDatabaseVersion(DatabaseVersion databaseVersion)

removeDatabaseVersion

public void removeDatabaseVersion(DatabaseVersion databaseVersion)