java Archives - Timo Ernst https://www.timo-ernst.net/blog/tag/java/ 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 java Archives - Timo Ernst https://www.timo-ernst.net/blog/tag/java/ 32 32 Proper JavaScript OOP with inheritance for Java developers https://www.timo-ernst.net/blog/2012/11/23/proper-javascript-oop-with-inheritance-for-java-developers/ https://www.timo-ernst.net/blog/2012/11/23/proper-javascript-oop-with-inheritance-for-java-developers/#comments Fri, 23 Nov 2012 17:22:20 +0000 http://www.timo-ernst.net/?p=2989 Update: This post may still be correct but since ES6 the keyword “class” has been introduced to JavaScript, so make sure to check this out first: ES6 classes The following is a personal best practice advice for OO with ES5 (and older) Coming from a Java background, I really miss keywords like class or extends […]

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]]> https://www.timo-ernst.net/blog/2012/11/23/proper-javascript-oop-with-inheritance-for-java-developers/feed/ 2 ZK user group conference in Mannheim, Germany https://www.timo-ernst.net/blog/2011/11/22/zk-user-group-conference-in-mannheim-germany/ https://www.timo-ernst.net/blog/2011/11/22/zk-user-group-conference-in-mannheim-germany/#respond Tue, 22 Nov 2011 01:06:13 +0000 http://www.timo-ernst.net/?p=2893 I’ll be speaking on the upcoming ZK user group conference in Mannheim, Germany on December 6th, 2011 (what’s ZK?). If you enjoy developing rich internet applications with the power of Java, I highly recommend to be there. If you want to join, just sign up for the event on zkoss.org for free and see three […]

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]]> https://www.timo-ernst.net/blog/2011/11/22/zk-user-group-conference-in-mannheim-germany/feed/ 0 .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 New project: zkexamples.com https://www.timo-ernst.net/blog/2011/05/17/new-project-zkexamples-com/ https://www.timo-ernst.net/blog/2011/05/17/new-project-zkexamples-com/#comments Tue, 17 May 2011 18:04:32 +0000 http://www.timo-ernst.net/?p=2836 I created a new online platform called zkexamples.com. The goal is to provide really simple and quick examples for common ZK use-cases and requirements (what is ZK?). The idea is based on flexexamples.com which was a great help to me when I was coding a lot of Adobe Flex. If anyone has some nice examples […]

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]]> https://www.timo-ernst.net/blog/2011/05/17/new-project-zkexamples-com/feed/ 3 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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]]> https://www.timo-ernst.net/blog/2011/04/24/quickfix-hibernate-integration-for-zk-applications/feed/ 0 Vector vs. ArrayList in multi-threaded Java applications https://www.timo-ernst.net/blog/2011/04/20/java-threads-and-the-list-interface/ https://www.timo-ernst.net/blog/2011/04/20/java-threads-and-the-list-interface/#comments Wed, 20 Apr 2011 20:04:47 +0000 http://www.timo-ernst.net/?p=2758 I lately had to play around a lot with collections in multi-threaded environments and learned several new stuff that I’d like to share: Vector vs. ArrayList Where is the difference between both? When should you use ArrayList and when is the time to use Vector? This is a very common question and often leads to […]

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]]> https://www.timo-ernst.net/blog/2011/04/20/java-threads-and-the-list-interface/feed/ 2 Flash – The new Java? https://www.timo-ernst.net/blog/2010/04/04/flash-the-new-java/ https://www.timo-ernst.net/blog/2010/04/04/flash-the-new-java/#respond Sun, 04 Apr 2010 13:54:27 +0000 http://www.timo-ernst.net/?p=2066 Update: After hearing about some misunderstandings regarding this post, I want to make sure, that the title “Flash – The new Java?” is of course targeted at front-ent software engineering, not backend. Although it’s obvious that noone would ever try to build a web application backend using Flash, I just wanted to make sure that […]

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]]> https://www.timo-ernst.net/blog/2010/04/04/flash-the-new-java/feed/ 0 Flash is better than Java https://www.timo-ernst.net/blog/2010/03/25/flash-is-better-than-java/ https://www.timo-ernst.net/blog/2010/03/25/flash-is-better-than-java/#respond Thu, 25 Mar 2010 10:18:01 +0000 http://www.timo-ernst.net/?p=1896 Stop! Before you send me a letter-bomb, read this article first :-) Update: After hearing about some misunderstandings regarding this post, I want to make sure, that the title “Flash is better than Java” is of course targeted at front-ent software engineering, not backend. Although it’s obvious that noone would ever try to build a […]

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]]> https://www.timo-ernst.net/blog/2010/03/25/flash-is-better-than-java/feed/ 0 There is no Flex Developer! https://www.timo-ernst.net/blog/2010/03/25/there-is-no-flex-developer/ https://www.timo-ernst.net/blog/2010/03/25/there-is-no-flex-developer/#respond Thu, 25 Mar 2010 09:59:36 +0000 http://www.timo-ernst.net/?p=1884 In case you have ever been asking yourself how to call yourself if you develop Flash-based applications, here is the ultimate guide: If you use the Eclipse-based IDE called “Flash Builder” in order to create Rich Internet Applications using AS3 and MXML, you are a Flash Developer (with Focus on Flex). If you use the […]

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