Object mechanism and method that creates domain-neutral objects with domain-specific run-time extensions in an appropriate collection

A method for creating a domain-neutral object with at least one domain-specific run-time extension in an appropriate collection, the method comprising the steps of:

• creating a domain extension object corresponding to the domain-specific run-time extension;
• passing the domain extension object to a factory;
• the factory determining whether there is a special factory defined that corresponds to the domain extension object;
• if there is a special factory corresponding to the domain extension object, performing the steps of:
• the special factory determining the appropriate collection corresponding to the domain extension object;
• and
• the special factory creating the domain-neutral object with the at least one domain-specific run-time extension in the appropriate collection;
• if there is no special factory corresponding to the domain extension object, performing the step of:
• the factory creating the domain-neutral object with the at least one domain-specific run-time extension in a default collection, the default collection comprising the appropriate collection for all domain extension objects that do not have a corresponding collection defined.