Monthly Archives: November 2010

JDO Typesafe .vs. JPA Criteria

JPA2 introduced its “Criteria” queries, providing an API for typesafe query generation without the need to hardcode field names etc in queries; it built on the approach of Hibernate Criteria. DataNucleus includes a proposal for JDO “Typesafe” queries. It takes … Continue reading

Posted in Criteria, JDO, JDOQL, JPA, LINQ, Typesafe | 9 Comments

JDO Typesafe Queries : Part 3 – Examples

In two previous blog posts, we introduced the idea of having a typesafe refactor friendly API for queries for JDO, and then described typical expression types necessary to achieve that. In this blog post we take that a step further, … Continue reading

Posted in JDO, JDOQL, JPA, LINQ, Typesafe | 15 Comments