As in the Internet Inter-Orb Protocol (IIOP) partitioning facility, each HTTP partitioning facility application must also contain a partitioned stateless session bean (PSSB). The PSSB interacts with a HttpPartitionManager interface to make requests of HTTP partitioning facility. An application may optionally contain one or more web modules that may also use the HttpPartitionManager interface. A servlet can register for partitioning facility events such as the loading and unloading of partitions by the partitioning facility subsystem. Finally, in addition to the application.xml contained in the META-INF directory of an enterprise application archive (EAR), an application can also specify partition information in a partitions.xml file.