Advanced API package.
Class | Description |
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DatabaseFileLockedException | this Exception is thrown during any of the db4o open calls if the database file is locked by another process. |
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. |
ObjectNotStorableException | this Exception is thrown, if objects can not be stored and if db4o is configured to throw Exceptions on storage failures. |
Status | Static constants to describe the status of objects. |
Interface | Description |
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Db4oCallback | generic callback interface. |
ExtClient | extended client functionality for the ExtObjectContainer interface. Both openClient methods always return an ExtClientobject so a cast is possible. The ObjectContainer functionality is split into multiple interfaces to allow newcomers to focus on the essential methods. |
ExtObjectContainer | extended functionality for the ObjectContainer interface. Every db4o ObjectContainer always is an ExtObjectContainerso a cast is possible. com.db4o.ObjectContainer.ext is a convenient method to perform the cast. The ObjectContainer functionality is split to two interfaces to allow newcomers to focus on the essential methods. |
ExtObjectServer | extended functionality for the ObjectServer interface. |
ExtObjectSet | extended functionality for the ObjectSet interface. Every db4o ObjectSet always is an ExtObjectSet so a cast is possible. com.db4o.ObjectSet.ext is a convenient method to perform the cast. The ObjectSet functionality is split to two interfaces to allow newcomers to focus on the essential methods. |
ObjectCallbacks | callback methods. |
ObjectInfo | interface to the internal reference that an ObjectContainer holds for a stored object. |
StoredClass | the internal representation of a stored class. |
StoredField | the internal representation of a field on a stored class. |