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Thorben Janssen
Works at Qualitype GmbH
Attended FHDW Paderborn
Lives in Dresden
373 followers|1,787,392 views
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Thorben Janssen

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Not a hobby anymore: Thoughts on Java becomes my main job.
Yes, I’m writing a review of the last 12 months in the middle of the summer. You normally see these kinds of posts at the end of the year and not at the end of July. But there is a good reason for it: On July 1st, 2015 I reduced my day job to 4 days …
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Thorben Janssen

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New Hibernate Tip: How to use a custom database sequence instead of Hibernate's default one
In this week's Hibernate Tip, I show you how to use a custom database sequence to generate your primary keys.
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This week, I found some interesting posts about the Java technology landscape, lots of Hibernate performance tips, finding connection leaks, popular Java questions and answers and serverless applications
This week with a report about Java technology landscape, lots of Hibernate performance, connection leaks, popular Java answers and serverless applications
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Thorben Janssen

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In part 3 of my Hibernate Performance Tuning series, I give you an overview about the different caches supported by Hibernate.
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Most Hibernate performance issues don't show up during development. They hit you in production.
Watch this video to learn how to let Hibernate tell you about them during development.
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New Hibernate Tip: How to map native query results to entities
In this week's Hibernate Tip, I show you how you can map the result of a native SQL query to a managed entity.
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Have him in circles
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Thorben Janssen

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Was an interesting week with posts about time zones in Java 8, Stream Collectors, plans for Java EE 8, the new Bean Validation Specification, custom authentication with JACC and more
This week with time zones in Java 8, Stream Collectors, plans for Java EE 8, the new Bean Validation Specification, custom authentication with JACC and more
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FetchTypes define when Hibernate shall fetch related entities from the database and are an important element for a high-performance persistence tier.
FetchTypes define when Hibernate shall fetch related entities from the database and are an important element for a high-performance persistence tier.
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Thorben Janssen

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Very cool writeup by +Thorben Janssen on 3 Common Hibernate Performance Issues and How to Find Them in Your Log File: http://www.baeldung.com/hibernate-common-performance-problems-in-logs
A lot of Hibernate performance issues can be found in the log file. In this article, I show you 3 commons ones and how you can fix them.
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Thorben Janssen

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Part 2 of my Hibernate Performance Tuning Series: How to fix the most common performance issue
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New Java Weekly with lot's of Java EE related links.
This week with a clarification to the MicroProfile announcement, JPA performance tuning tips, an intro to QueryDSL, Uber's μDeploy and contributing to Camel
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Native UPDATE statements can provide massive performance benefits if you have to update a huge set of entities. But you also have to take care of your 1st level cache and handle lifecycle events.
Native UPDATE statements can provide massive performance benefits but you have to update the 1st level cache and handle lifecycle events.
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People
Have him in circles
373 people
Sérgio Weber's profile photo
Adrian Matei's profile photo
Daniel Bartl's profile photo
Rajendra Rathod's profile photo
Younes Afares's profile photo
Allen Peter's profile photo
Kannan Thangadurai's profile photo
Japro Mimi's profile photo
Jaschar Domann's profile photo
Work
Occupation
Senior Developer
Skills
Java, Java EE, Wildfly, JBoss, EJB, CDI, JPA, Hibernate, Arquillian
Employment
  • Qualitype GmbH
    2009 - present
  • Orga Systems GmbH
    2003 - 2009
  • Orga Kartensysteme
    2001 - 2003
Places
Map of the places this user has livedMap of the places this user has livedMap of the places this user has lived
Currently
Dresden
Previously
Paderborn
Links
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Introduction
Senior Developer, Blogger, Father, Husband, ...
Education
  • FHDW Paderborn
    Business Informatics, 2001 - 2004
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Gender
Male