What are the enhancements in ejb 2.0 with respect to cmp?
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Answer / Abhash Mitra
In EJB 2.0, Container Managed Persistence (CMP) was significantly improved. Some of the key enhancements include:
1. Bean-managed relationships (BMRs): Allows a CMP entity bean to define its own relationship with another CMP or BMP entity bean.n
2. Collection-valued fields: Enables CMP entities to have collections as fields.n
3. Query language for containers (QL): A powerful SQL-like query language that can be used to retrieve and manipulate data from the database.n
4. Improved relationships: Support for bidirectional relationships, cascading deletes, and collection joins.
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