id-generation

Hibernate ID Generator

A cursory search of Google for ‘hibernate custom id generator tutorial’ turned up the following possibilities. I’ve excluded those that don’t look useful and summarized the content of each. http://www.devx.com/Java/Article/30396 – covers the issues of generating an ID before the data is persisted (and hence does not yet have a business key). http://docs.jboss.org/hibernate/core/3.6/reference/en-US/html_single/#mapping-declaration – the … Read more

How to choose the id generation strategy when using JPA and Hibernate

The API Doc are very clear on this. All generators implement the interface org.hibernate.id.IdentifierGenerator. This is a very simple interface. Some applications can choose to provide their own specialized implementations, however, Hibernate provides a range of built-in implementations. The shortcut names for the built-in generators are as follows: increment generates identifiers of type long, short … Read more