The getGeneratedVersion method defines what type of UUID we are generating, according to the IETF RFC 4122 standard. Throw new IllegalArgumentException("Can't fetch a new UUID") ResultSet resultSet = statement.executeQuery( Statement statement = connection.createStatement() Hibernate generates the following SQL INSERT statement: tTitle("High-Performance Java Persistence") Getters and setters omitted for brevity However, few might know that GenerationType.AUTO can be used for UUID identifiers as = "post")
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When using JPA, we can use the GenerationType.AUTO strategy of the annotation to assign numerical identifier automatically, based on an IDENTITY column, a SEQUENCE or the infamous TABLE generator. Now, let’s see how we can map the Post entity so that the UUID identifier be auto-generated for us. The Post entity has a UUID identifier and a title. In this article, we are going to see how to use a UUID entity identifier that is auto-generated by Hibernate either in the JVM or using database-specific UUID functions. So, enjoy spending your time on the things you love rather than fixing performance issues in your production system on a Saturday night! Well, Hypersistence Optimizer is that tool!Īnd it works with Spring Boot, Spring Framework, Jakarta EE, Java EE, Quarkus, or Play Framework.
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Follow having a tool that can automatically detect JPA and Hibernate performance issues.