Chapter 4. Configuring Hibernate for Red Hat JBoss Web Server

Procedure

1. Get the Hibernate JAR files from the JBoss Web Server Maven Repository.
2. Add the Hibernate JAR files to your deployment WAR file.

Procedure

1. Open your deployment’s /META-INF/context.xml file for editing.

2. Modify the JDBC connection pools available to applications, as in the following example:

   <Context>
     <Resource
       name="jdbc/DsWebAppDB"
       auth="Container"
       type="javax.sql.DataSource"
       username="sa"
       password=""
       driverClassName="org.h2.Driver"
       url="jdbc:h2:mem:target/test/db/h2/hibernate"
       maxActive="8"
       maxIdle="4"/>
   </Context>

Procedure

1. Open your deployment’s /WEB-INF/classes/META-INF/persistence.xml file for editing.

2. Configure how Hibernate consumes connections from the Tomcat, as in the following example:

   <persistence version="1.0"
     xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd">
   
     <persistence-unit name="dswebapp">
       <provider>org.hibernate.ejb.HibernatePersistence</provider>
       <properties>
         <property name="hibernate.dialect" value="org.hibernate.dialect.H2Dialect" />
         <property name="hibernate.connection.datasource" value="java:comp/env/jdbc/DsWebAppDB"/>
       </properties>
     </persistence-unit>
   </persistence>

Procedure

1. Open your deployment’s /WEB-INF/web.xml file for editing.

2. Configure JDBC datasources with the resource-env-ref element, as in the following example that uses a jdbc/DsWebAppDB datasource:

   <?xml version="1.0" encoding="UTF-8"?>
   <web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
     http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
   
    <resource-env-ref>
     <resource-env-ref-name>jdbc/DsWebAppDB</resource-env-ref-name>
     <resource-env-ref-type>javax.sql.DataSource</resource-env-ref-type>
    </resource-env-ref>
   </web-app>