CICS Transaction Server supports LDAP. Some changes to your client programs might be necessary to allow a client program to find the bean homes published from a CICS region. An LDAP client must use either the WebSphere® Context Factory or the Sun LDAP Context Factory. The advantage of using the WebSphere Context Factory is that it understands automatically the system name space (that is the structured name space on the LDAP server into which CICS publishes your bean homes). However, this context factory has a number of dependencies and so is not the most lightweight client. The SUN context factory has no dependencies apart from the base IBM® Developer Kit for the Java Platform and so is very lightweight, however it does not understand the system name space and so it is necessary to negotiate it programmatically, but there are some utility methods provided by CICS to help with this.
These alternatives are best demonstrated by examples: