Summary

This chapter introduced methodologies to assure interoperability at a layer that is sometimes forgotten about when it comes to discussions on interoperating applications: the Resource tier. In many cases tiers have connectivity to both Java EE and .NET technologies and are designed to be interoperable across both. For example, database servers typically have ADO.NET and JDBC drivers for them, and as such can be used transparently by applications written for either platform. This chapter introduced strategies and methods through which the Resource tier can be used to provide an interoperability layer within applications. An example demonstrated an end-to-end system that allowed for synchronous integration via database calls as well as asynchronous integration through methodologies such as SQL Notifications within SQL Serverand how these may be used within Java.