In this chapter, we are going to explain some integration patterns and look at how they work on the integration tier of Java EE. After reading this chapter, you will be able to implement these patterns and use them to solve integration problems between resources or systems. You will also be able to work on the integration tier and become familiar with the concepts associated with integration patterns. The topics in this chapter are as follows:
- Explaining the concept of the integration tier
- Explaining the concept of the data-access object pattern
- Implementing the data-access object pattern
- Explaining the concept of the domain-store pattern
- Implementing the domain-store pattern
- Explaining the concept of the service-activator pattern
- Implementing the service-activator pattern
