Hibernate Archives - Timo Ernst https://www.timo-ernst.net/blog/tag/hibernate/ Developer • YouTuber • Blogger Wed, 05 Sep 2018 13:44:19 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.4 https://www.timo-ernst.net/wp-content/uploads/2021/03/cropped-Timo-Ernst-Small-32x32.jpg Hibernate Archives - Timo Ernst https://www.timo-ernst.net/blog/tag/hibernate/ 32 32 .remove() and .contains() not working on your Java set? https://www.timo-ernst.net/blog/2011/06/08/remove-and-contains-not-working-on-your-java-set/ https://www.timo-ernst.net/blog/2011/06/08/remove-and-contains-not-working-on-your-java-set/#comments Wed, 08 Jun 2011 18:36:36 +0000 http://www.timo-ernst.net/?p=2850 If you suddenly experience problems callling set.remove() and set.contains() on your Java Set instances, you might be using Hibernate, which replaces your Set instance with its own version (PersistentSet), which uses a HashSet internally to store your data. For example, the problem I faced was the following: Person.java public class Person(){ String _name; public Person(String […]

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]]> https://www.timo-ernst.net/blog/2011/06/08/remove-and-contains-not-working-on-your-java-set/feed/ 10 Correct naming convention for boolean values in Hibernate mapping files https://www.timo-ernst.net/blog/2011/05/18/correct-naming-convention-for-boolean-values-in-hibernate-mapping-files/ https://www.timo-ernst.net/blog/2011/05/18/correct-naming-convention-for-boolean-values-in-hibernate-mapping-files/#respond Wed, 18 May 2011 14:28:32 +0000 http://www.timo-ernst.net/?p=2841 Ok, this just took me a while to figure out so I thought I’d share it here. If you have a boolean variable that follows the naming convention “isValue” (e.g. boolean isPerson = false;), then the according mapping file property name may not include the “is” part of the name, for example: <property name="person" column="is_person" […]

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]]> https://www.timo-ernst.net/blog/2011/05/18/correct-naming-convention-for-boolean-values-in-hibernate-mapping-files/feed/ 0 Quickfix: Hibernate integration for ZK applications https://www.timo-ernst.net/blog/2011/04/24/quickfix-hibernate-integration-for-zk-applications/ https://www.timo-ernst.net/blog/2011/04/24/quickfix-hibernate-integration-for-zk-applications/#respond Sun, 24 Apr 2011 17:20:45 +0000 http://www.timo-ernst.net/?p=2792 If you’re using the awesome ZK framework together with Hibernate you might run into some issues where Hibernate behaves a little funky while the application runs. The trouble’s cause According to the developers of ZK, the reason for this is ZK’s multi-threaded event model. Whenever an event gets fired, a new event thread is created. […]

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