Validation

Each time a connection is made, it is validated against a set of rules defined in thisKcsXformSeq class. The rules use the current set of attributes as well as the current state of all of the transformations in the connection.

If the sequence rules pass, the sequence passes itself down to all the validation methods of each KcsXform in the list. In this way, all KcsXforms are allowed to determine if a connection can be made. If an error occurs in any single KcsXform, the connection is refused.