db4o 7.4

Package com.db4o.ext

Interface Summary
Db4oCallback generic callback interface.
ExtClient extended client functionality for the ExtObjectContainer interface.
ExtObjectContainer extended functionality for the ObjectContainer interface.
ExtObjectServer extended functionality for the ObjectServer interface.
ExtObjectSet extended functionality for the ObjectSet interface.
ObjectCallbacks callback methods.
ObjectInfo interface to the internal reference that an ObjectContainer holds for a stored object.
ObjectInfoCollection Interface to an iterable collection ObjectInfo objects.

ObjectInfoCollection is used reference a number of stored objects.
StoredClass the internal representation of a stored class.
StoredField the internal representation of a field on a stored class.
SystemInfo provides information about system state and system settings.
 

Class Summary
Db4oUUID a unique universal identify for an object.
ExtDb4o extended factory class with static methods to open special db4o sessions.
MemoryFile carries in-memory data for db4o in-memory operation.
Status Static constants to describe the status of objects.
 

Exception Summary
BackupInProgressException db4o-specific exception.
DatabaseClosedException db4o-specific exception.
DatabaseFileLockedException db4o-specific exception.

this Exception is thrown during any of the db4o open calls if the database file is locked by another process.
DatabaseMaximumSizeReachedException db4o-specific exception.

This exception is thrown when the database file reaches the maximum allowed size.
DatabaseReadOnlyException db4o-specific exception.

This exception is thrown when a write operation is attempted on a database in a read-only mode.
Db4oException db4o exception wrapper: Exceptions occurring during internal processing will be proliferated to the client calling code encapsulated in an exception of this type.
Db4oIOException db4o-specific exception.

This exception is thrown when a system IO exception is encounted by db4o process.
Db4oUnexpectedException Unexpected fatal error is encountered.
IncompatibleFileFormatException db4o-specific exception.

This exception is thrown when the database file format is not compatible with the applied configuration.
InvalidIDException db4o-specific exception.

This exception is thrown when the supplied object ID is incorrect (outside the scope of the database IDs).
InvalidPasswordException db4o-specific exception.

This exception is thrown when a client tries to connect to a server with a wrong password or null password.
InvalidSlotException db4o-specific exception.

This exception is thrown when db4o reads slot information which is not valid (length or address).
ObjectNotStorableException this Exception is thrown, if objects can not be stored and if db4o is configured to throw Exceptions on storage failures.
OldFormatException db4o-specific exception.

This exception is thrown when an old file format was detected and Configuration.allowVersionUpdates(boolean) is set to false.
 


db4o 7.4

Copyright 2007 db4objects Inc. All rights reserved.