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Tag Archives: JBoss Hibernate

Spring Security Implementing Custom UserDetails with Hibernate

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Most of the time, we will want to configure our own security access roles in web applications. This is easily achieved in Spring Security. In this article we will see the most simple way to do this. First of all we will need the following tables in the database: CREATE TABLE IF NOT EXISTS `mydb`.`security_role` ( `id` INT(11) NOT NULL ...

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Hibernate Composite Ids with association mappings

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Recently, We faced a tricky situation with hibernate association mapping with a composite id field. We needed to have bidirectional association with one-to-may and many-to-one.Our tow tables was “REPORT” and “REPORT_SUMMARY” which has one-to-many relationship from REPORT to REPORT_SUMMARY and many-to-one relationship from REPORT_SUMMARY to REPORT table. The primary key of REPORT_SUMMARY table is defined as a composite primary key ...

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Testing Spring & Hibernate Without XML

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I’m very keen on the improvements in Spring 3 that eventually let you move away from XML into plain Java configuration with proper support from IDE and compiler. It doesn’t change the fact that Spring is a huge suite and it sometimes finding the thing you need can take a while. XML-free unit tests around Hibernate are one such thing. ...

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Schema Creation Script With Hibernate 4, JPA And Maven

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The scenario is trivial – you want to generate a database schema creation script while building your application (and then execute the script on the target database) This was relatively easy with Hibernate 3, as there was the hibernate3-maven-plugin, but it is not compatible with Hibernate 4. And for every new project you should start with Hibernate 4, of course. ...

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Generational caching and Envers

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Konrad recently shared on our company’s technical room an interesting article on how caching is done is a big polish social network, nk.pl. One of the central concepts in the algorithm is generational caching (see here or here). The basic idea is that for cache keys you use some entity-specific string + version number. The version number increases whenever data ...

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Full Web Application Tomcat JSF Primefaces JPA Hibernate – Part 3

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Primefaces AutoComplete, JSF Converter This post continues from part 1 and part 2. The JSF has the Converter tool that helps us get some data from the user view and transform into an object loaded from the database or a cache.           In the “com.converter” package create the following class: package com.converter; import javax.faces.application.FacesMessage; import javax.faces.component.UIComponent; ...

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Full Web Application Tomcat JSF Primefaces JPA Hibernate – Part 2

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ManagedBeans This post continues from part 1 of this tutorial. In the “com.mb” package you will need to create the classes bellow:             package com.mb; import org.primefaces.context.RequestContext; import com.util.JSFMessageUtil; public class AbstractMB { private static final String KEEP_DIALOG_OPENED = 'KEEP_DIALOG_OPENED'; public AbstractMB() { super(); } protected void displayErrorMessageToUser(String message) { JSFMessageUtil messageUtil = new JSFMessageUtil(); messageUtil.sendErrorMessageToUser(message); ...

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Load or Save Image using Hibernate – MySQL

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This tutorial will walk you throughout how to save and load an image from database (MySQL) using Hibernate. Requirements For this sampel project, we are going to use: Eclipse IDE (you can use your favorite IDE); MySQL(you can use any other database, make sure to change the column type if required); Hibernate jars and dependencies (you can download the sample ...

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Tutorial: Hibernate, JPA & Spring MVC – Part 2

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This tutorial will show you how to take a basic Hibernate/JPA app, convert it into a Spring MVC web project to be able to view the database in a web browser, and finally use Spring’s @Transactional annotation to reduce boiler plate code. This tutorial assumes you’re familiar with Java and Maven, and that you’ve completed the first part of this ...

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