<?xml version="1.0" encoding="UTF-8"?> <persistence 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_2_0.xsd" version="2.0"> <persistence-unit name="sigmah-dev" transaction-type="RESOURCE_LOCAL"> <provider>org.hibernate.ejb.HibernatePersistence</provider> <properties> <property name="hibernate.archive.autodetection" value="class" /> <!-- Loaded from pom configuration. --> <property name="hibernate.dialect" value="org.hibernate.dialect.PostgreSQLDialect" /> <property name="hibernate.connection.driver_class" value="org.postgresql.Driver" /> <property name="hibernate.connection.username" value="sigmah" /> <property name="hibernate.connection.password" value="${SIGMAH_PWD}" /> <property name="hibernate.connection.url" value="jdbc:postgresql://sigmah-postgres:5432/sigmah" /> <property name="hibernate.show_sql" value="false" /> <property name="hibernate.format_sql" value="false" /> <!-- validate | update | create | create-drop | {empty} --> <property name="hibernate.hbm2ddl.auto" value="update" /> <!-- Important : connection pool. --> <property name="hibernate.connection.provider_class" value="org.hibernate.service.jdbc.connections.internal.C3P0ConnectionProvider" /> <!-- Connection pool configuration. --> <!-- https://community.jboss.org/wiki/HowToConfigureTheC3P0ConnectionPool --> <!-- http://www.mchange.com/projects/c3p0/ --> <property name="hibernate.c3p0.min_size" value="1" /> <property name="hibernate.c3p0.max_size" value="15" /> <property name="hibernate.c3p0.max_statements" value="100" /> <property name="hibernate.c3p0.timeout" value="0" /> <property name="hibernate.c3p0.acquire_increment" value="1" /> <property name="hibernate.c3p0.numHelperThreads" value="6" /> </properties> </persistence-unit> </persistence>