Object identification

Object identification in object models means that every object instance has a unique, unchanging identity. Object identification is often referred to as an OID. OIDs are used to reference object instances.

Characteristics of OIDs:

bulletOIDs are independent of data contained in the object. The internal data values are not used to generate identification.
bulletOIDs are generated by the object system. Users or programs have no control over identification.
bulletOIDs last the lifetime of the object. The OID never changes even when the data contents may change.

 

 

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