Abstract: The invention provides a system and method for providing pluggable pattern matching for servlets. This feature allows application servers that incorporate the invention to support non-J2EE pattern matching schemes in their http request resolution. The pluggable pattern matching feature is targeted primarily at customers who want to implement custom URL matching patterns. Since this feature is not J2EE compliant, some other form of configuration is necessary. In one embodiment an XML file (weblogic.xml) is used to configure the new pattern matching utilities. By modifying the settings in the weblogic.xml file, users are able to plug their own custom pattern matching utility classes into the weblogic server.

Abstract: In embodiments, the present invention provides mechanisms and methods for making a plurality of configuration changes to a set of servers comprised of an administration server and one or more managed servers. These mechanisms and methods can enable a number of changes to be made to the configuration at once, i.e., in a batch. The ability of an administrator to make a number of changes to the configuration, validate the changes and then persist the changes to the servers is termed a “transaction based” change process. In such transaction based processing, embodiments process changes in batches, which enables embodiments to avoid failures in configuration changes that result in the machines being in a non-recoverable or unknown configuration state.

Abstract: In embodiments, the present invention provides mechanisms and methods for making a set of configuration changes to a set of servers comprised of an administration server and one or more managed servers. These mechanisms and methods can enable a number of changes to be made to the configuration at once, e.g., in a batch. In such transaction based processing, embodiments process changes in batches, which enables embodiments to avoid failures in configuration changes that result in the machines being in a non-recoverable or unknown configuration state.

Abstract: A system and method for allowing individual software modules to be reloaded in memory without forcing other modules to be reloaded at the same time. Such reloadable modules address the problem of not being able to reload a module without reloading all classes in the application. In accordance with one embodiment the root classloader and webapp classloader are reorganized, and the individual modules placed in their own classloader. This allows the developer to define their classloader organization according to their needs. The system can then reload modules or classes without affecting the rest of the application.

Abstract: A system and method for application scoping that can be added to the application model for an application server, making it less global-centric and more application-centric. The JNDI tree is configured to allow for an application-private JNDI section. This private JNDI section then acts as a private data repository for the application. Resources that are needed by the application can be stored in the application-specific JNDI tree, and thus “scoped” to that particular application. As applications are added to the system, they can be specified in this way. The overall result is fewer changes at the system-wide or global level. The application scoping features provided by the invention include: Use of application scoped JNDI tree; Application Scoped JDBC DataSources; and Application Scoped Security. Application scoped resources provide two primary advantages—Security, in that resources owned by one application can't be used by another; and Simplified packaging and configuration.

Abstract: Applications can be deployed concurrently across a network cluster by utilizing a phased approach to deployment. A preparation operation is invoked each node on which an application is to be deployed. The preparation operation can utilize two phases, in which the deployment descriptors for an application are analyzed and in which each node is initialized for deployment. For each node that is successfully initialized, an activation phase is started in which the node is informed that it should prepare for requests on the application. The deployed application is then started on each successful node. For each node on which the preparation operation was unsuccessful, the deployment can be rolled back or attempted again.

Abstract: The invention provides a system and method for providing pluggable pattern matching for servlets. This feature allows application servers that incorporate the invention to support non-J2EE pattern matching schemes in their http request resolution. The pluggable pattern matching feature is targeted primarily at customers who want to implement custom URL matching patterns. Since this feature is not J2EE compliant, some other form of configuration is necessary. In one embodiment an XML file (weblogic.xml) is used to configure the new pattern matching utilities. By modifying the settings in the weblogic.xml file, users are able to plug their own custom pattern matching utility classes into the weblogic server.