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Displaying posts with tag: jpa (reset)
The best way to use SQL functions in JPQL or Criteria API queries with JPA and Hibernate

Introduction When executing an entity query (e.g. JPQL, HQL or Criteria API), you can use any SQL function without having to register it as long as the function is passed directly to the WHERE clause of the underlying SQL statement. However, if the SQL function is used in the SELECT clause, and Hibernate has not … Continue reading The best way to use SQL functions in JPQL or Criteria API queries with JPA and Hibernate →

The post The best way to use SQL functions in JPQL or Criteria API queries with JPA and Hibernate appeared first on Vlad Mihalcea.

MariaDB 10.3 supports database sequences

Introduction Traditionally, both MySQL and MariaDB relied on AUTO_INCREMENT columns to generate an IDENTITY Primary Key. Although IDENTITY columns are very efficient in generating the Primary Key value, when it comes to using JPA and Hibernate, the IDENTITY generator prevents us from using JDBC batch inserts. To automatically enroll multiple INSERT, UPDATE or DELETE statements, … Continue reading MariaDB 10.3 supports database sequences →

The post MariaDB 10.3 supports database sequences appeared first on Vlad Mihalcea.

How to inherit properties from a base class entity using @MappedSuperclass with JPA and Hibernate

Introduction Last week, one of my blog readers asked me of a way to reuse the @Id mapping so that it won’t have to be declared on each an every entity. Because this is a good opportunity to introduce @MappedSuperclass, I decided to answer the question with a blog post. Domain Model Assuming we are … Continue reading How to inherit properties from a base class entity using @MappedSuperclass with JPA and Hibernate →

9 High-Performance Tips when using MySQL with JPA and Hibernate

Introduction Although there is an SQL Standard, every relational database is ultimately unique, and you need to adjust your data access layer so that you get the most out of the relational database in use. In this article, we are going to see what you can do to boost up performance when using MySQL with … Continue reading 9 High-Performance Tips when using MySQL with JPA and Hibernate →

5 Things You Need to Know When Using Hibernate with Mysql

One of the benefits of using JPA and Hibernate is that it provides an abstraction of database-specific dialects and features. So, in theory, you can implement an application, connect it to one of the supported databases and it will run without any code changes.

Hibernate does that really well. But let’s be honest, you didn’t expect that your application will run perfectly with every supported database, did you?

Hibernate handles the most important things. But if you want your application to perform well, you still need to know which database(s) you want to use and adjust your configuration and code accordingly.

In one of the previous posts, I talked about 6 things you need to know if you want to use Hibernate with a PostgreSQL database. And today I want to have a closer look at the MySQL database.

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Tab Sweep: jBPM5, Hibernate Logging, Grizzly 2.2.5, Cache and JPA 2.0, Observer Pattern, . . .

Recent Tips and News on Java, Java EE 6, GlassFish & more :

Using Java Persistence API for Java SE 7 Desktop applications in NetBeans 7 (Oracle Learning Library)
Use jBPM5 embedded within a Java EE 6 application (akquinet)
If JAX-RS had an MVC framework? (Mamadou Lamine Ba)
• …

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TOTD #150: Collection of GlassFish, NetBeans, JPA, JSF, JAX-WS, EJB, Jersey, MySQL, Rails, Eclipse, and OSGi tips

This is the 150th tip published on this blog so decided to make it a collection of all the previous ones. Here is a tag cloud (created from wordle.net/create) from title of all the tips:

As expected GlassFish is the most prominent topic. And then there are several entries on NetBeans, JRuby/Rails, several Java EE 6 technologies like JPA, JAX-WS, JAX-RS, EJB, and JSF, and more entries on Eclipse, OSGi and some other tecnhologies too. Here is a complete collection of all the tips published so far:

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TOTD #150: Collection of GlassFish, NetBeans, JPA, JSF, JAX-WS, EJB, Jersey, MySQL, Rails, Eclipse, and OSGi tips

This is the 150th tip published on this blog so decided to make it a collection of all the previous ones. Here is a tag cloud (created from wordle.net/create) from title of all the tips:

As expected GlassFish is the most prominent topic. And then there are several entries on NetBeans, JRuby/Rails, several Java EE 6 technologies like JPA, JAX-WS, JAX-RS, EJB, and JSF, and more entries on Eclipse, OSGi and some other tecnhologies too. Here is a complete collection of all the tips published so far:

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TOTD #150: Collection of GlassFish, NetBeans, JPA, JSF, JAX-WS, EJB, Jersey, MySQL, Rails, Eclipse, and OSGi tips

This is the 150th tip published on this blog so decided to make it a collection of all the previous ones. Here is a tag cloud (created from wordle.net/create) from title of all the tips:

As expected GlassFish is the most prominent topic. And then there are several entries on NetBeans, JRuby/Rails, several Java EE 6 technologies like JPA, JAX-WS, JAX-RS, EJB, and JSF, and more entries on Eclipse, OSGi and some other tecnhologies too. Here is a complete collection of all the tips published so far:

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Using ClusterJPA (part of MySQL Cluster Connector for Java) – a tutorial

Fig. 1 Java access to MySQL Cluster

This is a follow up to the earlier post Using ClusterJ (part of MySQL Cluster Connector for Java) – a tutorial but covers the ClusterJPA interface rather than ClusterJ.

JPA is the Java standard for persistence and different vendors can implement their own implementation of this API and they can (and do) add proprietary extensions. Three of the most common implementations are OpenJPA, Hibernate and Toplink. JPA can be used within server containers or outside of them (i.e. with either J2EE or J2SE).

Typically a JPA implementation would access the database (for example, MySQL Cluster) using JDBC. JDBC gives a great deal of flexibility to the …

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Showing entries 1 to 10 of 31
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