Program guide > (deprecated) Partitioning facility > Partitioning facility programming > HTTP partitions

Deprecated feature: The partitioning facility (WPF) feature is deprecated. You can configure partitioning with WebSphere eXtreme Scale.

Structure of an HTTP partitioning facility application

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.

WebSphere eXtreme Scale ships with a sample HTTP partitioning facility application in the archive httpwpfsample.ear. This archive is in the <WAS_root>/installableApps directory by default. This application contains an application-generic PSSB, a Web archive with a simple servlet, and the appropriate packaging including a sample partitions.xml file. Its contents, though subject to change, are included here:

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HTTP partitions

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HTTP partitions