CHAPTER 5Exploring Integration Tier Design Patterns
The integration tier is a boundary tier and interacts with different external systems for data exchange. The integration tier in the eInsure application accessed the relational database for storing, retrieving, and manipulating data related to policies, claims, accounting, customers, and products. eInsure used entity beans for typical create, read, update, and delete (CRUD) operations with the database. The legacy version of eInsure had lots of leftovers in the form of stored procedures. The eInsure application made heavy use of these stored procedures for database-intensive tasks, especially for the batch jobs that ran daily after regular business hours or in certain intervals such as monthly ...
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