[This topic is pre-release documentation and is subject to change in future releases. Blank topics are included as placeholders.]

The following tables list the members exposed by the IExtObjectContainer type.

Public Methods

  NameDescription
Activate
activates all members on a stored object to the specified depth.
(Inherited from IObjectContainer.)
Backup
backs up a database file of an open ObjectContainer.

Bind
binds an object to an internal object ID.

Close
closes this IObjectContainer.
(Inherited from IObjectContainer.)
Collections
returns the Db4objects.Db4o.Types.IDb4oCollections interface to create or modify database-aware collections for this Db4objects.Db4o.IObjectContainer .


Commit
commits the running transaction.
(Inherited from IObjectContainer.)
Configure
returns the Configuration context for this ObjectContainer.

Deactivate
deactivates a stored object by setting all members to
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NULL
.
(Inherited from IObjectContainer.)
Delete
deletes a stored object permanently.
(Inherited from IObjectContainer.)
Descend
returns a member at the specific path without activating intermediate objects.

Ext
returns an IObjectContainer with extended functionality.
(Inherited from IObjectContainer.)
Get
Query-By-Example interface to retrieve objects.
(Inherited from IObjectContainer.)
GetByID
returns the stored object for an internal ID.

GetByUUID
returns a stored object for a Db4objects.Db4o.Ext.Db4oUUID .

This method is intended for replication and for long-term external references to objects. To get a Db4objects.Db4o.Ext.Db4oUUID for an object use Db4objects.Db4o.Ext.IExtObjectContainer.GetObjectInfo and Db4objects.Db4o.Ext.IObjectInfo.GetUUID .

Objects will not be activated by this method. They will be returned in the activation state they are currently in, in the local cache.


GetID
returns the internal unique object ID.

GetObjectInfo
returns the Db4objects.Db4o.Ext.IObjectInfo for a stored object.

This method will return null, if the passed object is not stored to this
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ObjectContainer
.


Identity
returns the Db4oDatabase identity object for this ObjectContainer.

IsActive
tests if an object is activated.

IsCached
tests if an object with this ID is currently cached.

IsClosed
tests if this
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ObjectContainer
is closed.

IsStored
tests if an object is stored in this
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ObjectContainer
.

KnownClasses
returns all class representations that are known to this ObjectContainer because they have been used or stored.

Lock
returns the main synchronisation lock.

MigrateFrom
aids migration of objects between ObjectContainers.

PeekPersisted
returns a transient copy of a persistent object with all members set to the values that are currently stored to the database.

PurgeOverloaded.
Reflector
Return the reflector currently being used by db4objects.

Refresh
refreshs all members on a stored object to the specified depth.

ReleaseSemaphore
releases a semaphore, if the calling transaction is the owner.

ReplicationBegin
prepares for replication with another Db4objects.Db4o.IObjectContainer .

An Db4objects.Db4o.IObjectContainer can only be involved in a replication process with one other Db4objects.Db4o.IObjectContainer at the same time.

The returned Db4objects.Db4o.Replication.IReplicationProcess interface provides methods to commit and to cancel the replication process.

This ObjectContainer will be "peerA" for the returned ReplicationProcess. The other ObjectContainer will be "peerB".

Rollback
rolls back the running transaction.
(Inherited from IObjectContainer.)
Set
newly stores objects or updates stored objects.
(Inherited from IObjectContainer.)
SetOverloaded.
Set
deep update interface to store or update objects.

SetSemaphore
attempts to set a semaphore.

StoredClass
returns a Db4objects.Db4o.Ext.IStoredClass meta information object.

There are three options how to use this method.
Any of the following parameters are possible:
- a fully qualified classname.
- a Class object.
- any object to be used as a template.


StoredClasses
returns an array of all Db4objects.Db4o.Ext.IStoredClass meta information objects.

SystemInfo
returns the Db4objects.Db4o.Ext.ISystemInfo for this ObjectContainer.

The Db4objects.Db4o.Ext.ISystemInfo supplies methods that provide information about system state and system settings of this ObjectContainer.

Version
returns the current transaction serial number.