Invoking a Built-In Service
There is an extensive set of built-in services that you can invoke from a flow service. The webMethods library includes services for doing such things as transforming data values, performing simple mathematical operations, extracting information from XML documents, and accessing databases.
Built-in services reside in the WmPublic package. For a complete description of these services, see the webMethods Integration Server Built-In Services Reference.
Note:
If you are using any adapters (for example, the webMethods Adapter for JDBC), you will have additional built-in services, which are provided by the adapters. See the documentation provided with those adapters for details.