Summary
returns the internal unique object ID.
- Assembly
- Db4objects
.Db4o-2010 .dll - Namespace
- Db4objects
.Db4o .Ext - Containing Type
- IExtObjectContainer
Syntax
long GetID(Object obj)Remarks
returns the internal unique object ID.
db4o assigns an internal ID to every object that is stored. IDs are guaranteed to be unique within one ObjectContainer. An object carries the same ID in every db4o session. Internal IDs can be used to look up objects with the very fast
Internal IDs will change when a database is defragmented. Use
db4o assigns an internal ID to every object that is stored. IDs are guaranteed to be unique within one ObjectContainer. An object carries the same ID in every db4o session. Internal IDs can be used to look up objects with the very fast
Db4objects.Db4o.Ext.IExtObjectContainer.GetByID(System.Int64)
method.Internal IDs will change when a database is defragmented. Use
Db4objects.Db4o.Ext.IExtObjectContainer.GetObjectInfo(System.Object)
,
Db4objects.Db4o.Ext.IObjectInfo.GetUUID
and
Db4objects.Db4o.Ext.IExtObjectContainer.GetByUUID(Db4objects.Db4o.Ext.Db4oUUID)
for long-term external references to
objects.Parameters
| Name | Type | Description |
|---|---|---|
| obj | Object | any object |
Return Value
| Type | Description |
|---|---|
| long |
the associated internal ID or |