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Superhero with Java powers && Gamer && (Sci-Fi & Star Wars geek) && Bulgarian Java User Group Fellow Leader && nerds2nerds podcaster && java.beer guy ? this : null

 I believe the above is enough, isn't it ? Anyway if you one of this... well...  non developers ? or HRs or recruiters or something in between ... you can check even my CV here.

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Use Multiple JVM versions on Mac OS and Linux

Linux Download multiple Java versions and put them into /opt/ If you already have some JDK from ubuntu repo or etc not a big deal, just fix the paths bellow Register them as alternatives sudo update-alternatives --install /usr/bin/java java /opt/java-8-oracle/bin/java 1081 sudo update-alternatives --install /usr/bin/java java /opt/sap-machine-jdk-11.0.3/bin/java 1080 Edit your ~/.bashrc file alias java11='sudo update-alternatives --set java /opt/sapmachine-jdk-11.0.3/bin/java;export JAVA_HOME=/opt/sapmachine-jdk-11.0.3/' alias java8='sudo update-alternatives --set java /opt/java-8-oracle/bin/java;export JAVA_HOME=/usr/lib/java-8-oracle/' SAVE and start a new bash terminal execute java8 to use java8 java11 to use java11 the latest version you have set stays as system wide, but the JAVA_HOME is not :( you can put java8 or java11 as a last line in the bashrc but since it is sudo it will always require password when start and is not gr...
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JavaEE 5 (JSF + JPA + EJB3) using Eclipse

Today I will show you how to create Enterprise Application using Java EE 5 and GlassFish. I will use - Eclipse 3.5 + WTP - GlassFish v. 2.1 - JSF Mojarra implementation. - EJB 3.0. - JPA Toplink essentials implementation. - MySQL No NetBeans or JDeveloper magic involved :) The prerequirement is: Add datasource in glassfish. Read this how you can make this here: http://gochev.blogspot.com/2009/10/creating-datasource-in-glassfish-v-21.html 1) First you need to add glassfish in your eclipse. - Go to Servers View - Right Click, New - Choose GlassFish v 2.1 if you dont have glassfish click on Download additional adapters link choose glassfish wait and restart eclipse. Than try again. 2) Create the database CREATE TABLE ` lesson ` . ` USERS ` ( ` id ` INTEGER UNSIGNED NOT NULL AUTO_INCREMENT, ` username ` VARCHAR ( 45 ) NOT NULL , ` password ` VARCHAR ( 45 ) NOT NULL , ` name ` VARCHAR ( 45 ) NOT NULL , PRIMARY KEY ( ` id ` ) ) ENGINE = InnoDB...
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Hibernate Generic DAO.

When you use Hibernate and DAO pattern it is a good idea to use a Generic Base Dao. The fallowing code snippet contains GenericDAO that is a base class for all my DAO classes. This GenericDAO uses HibernateDaoSupport from Spring for its implementation if you want you can use JpaDaoSupport or JdbcDaoSupport in your projects. My Generic DAO interface looks like this : package org.joke.myproject.dao.base; import java.io.Serializable; import java.util.List; /** * @author Naiden Gochev * @param <E> * @param <PK> */ public interface GenericDao<E,PK  extends Serializable> {     PK save(E newInstance);     void update(E transientObject);     void saveOrUpdate(E transientObject);     void delete(E persistentObject);     E findById(PK id);     List<E> findAll();     List<E> f...
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