Welcome to wmUsers!!!
Basically you have to go thru all the basic webMethods IS documentation libraries for understanding of Request/Response scenario using webMethods.Then post your technical questions in a new thread and users will respond accordingly.
Regarding general Adapter notification scenario see either Broker Publish-Subscribe Developers Guide or JDBCAdapter user documentation.
You can download all the WM libraries from Advantage. webmethods.com(Registration required to download the docs).
Goodluck,
#webMethods-General#webMethods-Architecture#webMethods#Integration-Server-and-ESB