1. 1 Nov 29, 2005 Object Relational Mapping Frameworks Wiene Höweler

2. 2 Nov 29, 2005 Why ORM frameworks Maps Object-Oriented programming objects to relational databases Advantages reduce programming code improve performance (caching)

3. 3 Nov 29, 2005 ORM frameworks Open source: Object Relational Bridge Castor Hibernate Simple ORM Ammentos Vendors: Visual Paradigm for UML ADF BC (BC4J) Toplink

4. 4 Nov 29, 2005 Object Relational Bridge Support of standard and non-standard API's (PB, OTM, ODMG, JDO) Transparent persistence Object caching Optimistic and pessimistic Locking Allows to build massively distributed and clustered systems Configurable persistence by reachability Dynamic XML mapping http://db.apache.org/ojb/

5. 5 Nov 29, 2005 Castor Castor XML: Java object model to and from XML (XML databinding). Castor JDO: Java object persistence to RDBMS In memory caching and write-at-commit Two phase commit transactions, object rollback and deadlock detection OQL query mapping to SQL queries http://castor.exolab.org

6. 6 Nov 29, 2005 Hibernate Support for inheritance, polymorphism, composition and the Java collections framework A variety of mappings for collections and dependent objects No build-time bytecode enhancement Dual-layer cache architecture Support for "application" transactions http://www.hibernate.org/

7. 7 Nov 29, 2005 Simple ORM Object/relational mapping on top of JDBC No XML, 100% Java Allows for raw JDBC and non-Java database access and constraints without compromising database integrity http://simpleorm.org

8. 8 Nov 29, 2005 Ammentos Explicitely meant for JDK5 developers Works with JDK5 annotations Automatic validation Event-driven programming supported Supports inheritance Supports transactions http://ammentos.biobytes.it/

9. 9 Nov 29, 2005 Visual Paradigm for UML Model sharing among diagrams Imports from ROSE Customizable SQL EJB diagram support and EJB code generation and deployment Integrates with Eclipse/IBM WebSphere, JBuilder, NetBeans IDE/Sun ONE, IntelliJ IDEA, JDeveloper and WebLogic Workshop. http://www.visual-paradigm.com/product/vpuml

10. 10 Nov 29, 2005 ADF BC (BC4J) Lightweight Java classes and corresponding XML- driven bean factories Declaratively design master/detail UI data model, including only data needed by client for optimum performance Declaratively enforce required fields, primary key uniqueness, data precision/scale, and foreign key references Simplify multi-step web-based business transactions with automatic web-tier state management http://www.oracle.com/technology/products/jdev/tips/mu ench/keybenefits/index.html

11. 11 Nov 29, 2005 Toplink Offers developers excellent performance and choice, working with any database, any application server, any development toolset and process, and any J2EE architecture. Allows Oracle hints to specify items such as the join order of a join statement or the optimization approach of a SQL call Hierarchical queries Support for Oracle Database Types http://www.oracle.com/technology/products/ias/t oplink