Oracle International Corporation

Bea Systems, Inc.

James William Gish

Brian Chesebro

Chinnappa Ganapathy Codanda

Akbar Ali Ansari

Codanda Ganapathy Chinnappa

In one embodiment, services are not loaded if they are not needed by the user and if no services needed by the user are dependent upon them. In one embodiment, server services are represented as nodes in a graph data structure. Connections between the nodes indicate dependencies between the server services. The graph is sorted to create an ordered list of services which can be used to startup the services. In another embodiment a server services manager reads license files and user inputs and marks the ordered list of services to indicate which services are to startup.

System and method for starting server services

In accordance with embodiments, there are provided mechanisms and methods for recovering from an incomplete transaction. These mechanisms and methods can enable embodiments to detect incomplete transactions when recovering from a server crash or other catastrophic event. Some embodiments can automatically re-establish interrupted connections when incomplete transactions have been detected. The ability of embodiments to detect incomplete transaction can allow recovery to initiate substantially immediately upon server restart and adapter redeployment.

Recovery mechanism for transactions

In accordance with embodiments, there are provided mechanisms and methods for substituting a new version resource adaptor for a production version of the resource adaptor. These mechanisms and methods can enable embodiments to provide upgrade to a new version resource adaptor contemporaneous with completion of work by the production version of the resource adaptor. The ability of embodiments to provide upgrade to a new version resource adaptor contemporaneous with completion of work by the production version of the resource adaptor can enable an installation desiring to install a new component of their connector system while the system remains in production, eliminating the need to halt the system, i.e., stop all traffic, replace the production version of the component with an upgraded version, test and finally place the upgraded version into production.

Production redeployment

In accordance with embodiments, there are provided mechanisms and methods for loading a class with a resource adapter classloader and enabling the class to be accessible by other components that interconnect with the resource adapter. In an embodiment, a method for loading a class with a resource adapter classloader is provided that includes detecting an indicator specifying that at least one class loaded by a classloader associated with a resource adapter be made accessible to at least one other classloader. The at least one class loaded by the classloader associated with the resource adapter is made accessible to a system classloader. The at least one other classloader is permitted the capability to access the at least one class loaded by the classloader associated with the resource adapter via the system classloader.

Resource adapter classloading

In accordance with embodiments, there are provided mechanisms and methods for suspending work by a resource adapter. These mechanisms and methods for suspending work by a resource adapter can enable embodiments to provide the capability to start and stop work performed by a resource adapter to connector architectures. The ability of embodiments to provide the capability to start and stop work performed by a resource adapter can enable users of Connector Architectures to quiesce an adapter's inbound/outbound or work sections. Such capability can enable an adapter embodiment to complete in-flight transactions but not accept new inbound transactions until a request to resume operation is received. Resource adapters may be quiesced during a versioning or change out process or other maintenance processes for example.

Growing community of inventors

Sudbury, MA, United States of America

James William Gish