How do I accomplish the following in LDAP?

Question

I would like to accomplish this goal using AD/ADAM

• The ability to make an email or other attributeClass as part of inetOrgPerson globally unique across entries
• The ability to attach a regular expression to an attribute for validation purposes
• The ability to provide a constraint of enumerated choices such as choosing from a list of valid state codes in a state attributeClass

Answer 1

You can't do any of that in AD or ADAM. They're just the data storage repository: I'm afraid you'll have to build the validation code yourself.