XInfoNotPersistedSimple
checks whether an XInfo
object has likely already been
persisted.XInfoValidatorSimple
verifies that an XInfo
item contains at a minimum
an xref, and optionally an xid.XInfoValidatorExtended
verifies that an XInfo
item contains at a minimum
an xref, and optionally an xid.XInfoTrustedValidator
since you are saying use the
default rules there.