EAI/EII scenarios
These scenarios show how the EAI/EII integration business patterns described in Chapter 1 can be implemented. These business patterns are as follows:
Direct connection: Represents the simplest type of interaction between two applications and is based on a 1:1 topology, in other words, an individual point-to-point connection.
Broker: Is based on the direct connection pattern and extends it to a 1: N topology. It allows an individual query from a source application to be routed to several target applications.
Router: A variant of the broker pattern with several potential target applications, where the message is routed to only one target application.
Implementing the direct connection business pattern
An SOA-based implementation of the direct connection business pattern makes use of an ESB component in the mediation layer, as shown in the following diagram:
Trigger:
An application sends a request using a web service.
Primary flow:
1. An endpoint on the ESB receives the request...
