92 Implementing Web Applications with CM Information Integrator for Content and ODWEK
Extended data objects (XDO)
Extended data object (XDO)
complements DDO by storing multimedia data of
complex types and offering functions that implement the data type’s behaviors in
the application. An example of this is a resource item that is used to store an
image or document in Content Manager.
XDO can be contained in, or owned by, DDO to represent a complex multimedia
data object. It can also be a stand-alone dynamic object.
Similar to DDO, XDO has a set of properties to represent such information as
data types and IDs.
Persistent ID (PID)
The persistent ID (PID) uniquely identifies a persistent object in any content
server. A DDO's PID consists of an item ...