Objects that are stored in the repository are called persistent objects and their types are referred to as persistent types. All persistent types are part of a type hierarchy rooted in the internal type persistent object, which has the following properties:
1.
r_object_id:This is used for unique identification, assigned to the object by the Content Server. This property is described earlier in this chapter.2.
i_vstamp:This is used internally for version control; it holds the number of committed transactions that have altered this object.3.
i_is_replica:This is used in replication and determines whether an object is a replica of another in a different repository. Object replication replicates (copies) objects, both content and metadata, from a source repository to a target repository. The object copies in the target repository are known as replica objects.
Objects are stored in the repository using object-relational technology where properties are stored in ...