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Trivadis Developer Blog
This is the publication playground for these guys from OIO Trivadis, the Trivadis Group`s Java experts.
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Agile Methods and development Atlassian Tools Build, config and deploy Did you know? Eclipse Universe Groovy and Grails Java and Quality Java Basics Java EE Java modularization Java Persistence Java Runtimes - VM, Appserver & Cloud Java Web Frameworks MDSD Open Source BI Other languages for the Java VM Politics Security SOA / Webservices Spring Universe Web as a Platform XML Universe
Monthly Archives: May 2012
Custom Tags as an Alternative to Composite Components in JSF
Composite components are well known and the concept is widely adopted by JSF developers today. Regrettably, another powerful concept seems to be ousted by the popularity of composite components: Custom (Facelet)-Tags. This article is about how to use them. The … Continue reading
Posted in Did you know?, Java Web Frameworks
Tagged composite-components, custom tags, JSF, performance
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Spring Data JPA 1.1.0 veröffentlicht
Mit Spring Data JPA läßt sich sehr leicht eine auf JPA basierende Datenzugriffsschicht realisieren. Features sind unter anderem eine generische DAO Implementierung, Auditierung von Domain-Objekten, Unterstützung von Paging und dynamischen Abfragen und Integration der Query-DSL (typsichere JPA-Abfrage-Alternative). Mittlerweile ist die … Continue reading
Posted in Java EE, Java Persistence, Java Runtimes - VM, Appserver & Cloud, Spring Universe
Tagged CDI, JPA, query dsl, spring data jpa
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JPA Security
Mit JPA Security gibt es eine relativ neue Access Control Lösung für objektrelationale Datenbankzugriffe über die Java Persistence API. Der große Vorteil gegenüber anderen Sicherheitslösungen ist, daß die Zugriffskontrolle und das Ausfiltern in der Datenbank stattfindet. Nicht erlaubte Daten werden … Continue reading
Posted in Java EE, Java Persistence, Security
Tagged Java Persistence API, JPA, jpa security
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Guava 12.0 released
A few days ago Guava 12.0 was released. We already published a few articles about Guava, a few more will follow in the next weeks. So this release announcement might be interesting for you. Guava 12.0 is the first release … Continue reading
Bootstrapping JSF applications with SystemEvents
SystemEvents offer a nice way to respond to events like system startup or -teardown. A frequent use case is to log if the application startup was successfull and if all neccessary resources are available. If a problem occurs during startup … Continue reading
Posted in Build, config and deploy, Java EE, Java Web Frameworks
Tagged Bootstrap, Events, JSF
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REST API for JPA entities
The intial version 1.0.0.M1 of Spring Data REST has been released. “Spring Data REST is part of the umbrella Spring Data project that makes it easy to expose JPA based repositories as RESTful endpoints.” See http://www.springsource.org/spring-data/rest for more details.
Handling Null values with Guava
Handling null values in Java can be quite annoying. Careless use of null can also be a source of a variety of bugs. “I call it my billion-dollar mistake.” – Sir C. A. R. Hoare, on his invention of the … Continue reading