jdbc:h2:${jboss.server.data.dir}/test;DB_CLOSE_DELAY=-1 h2 sa sa jdbc:mysql://${OPENSHIFT_DB_HOST}:${OPENSHIFT_DB_PORT}/${OPENSHIFT_APP_NAME} mysql ${OPENSHIFT_DB_USERNAME} ${OPENSHIFT_DB_PASSWORD} jdbc:postgresql://${OPENSHIFT_DB_HOST}:${OPENSHIFT_DB_PORT}/${OPENSHIFT_APP_NAME} postgresql ${OPENSHIFT_DB_USERNAME} ${OPENSHIFT_DB_PASSWORD} org.h2.jdbcx.JdbcDataSource com.mysql.jdbc.jdbc2.optional.MysqlXADataSource org.postgresql.xa.PGXADataSource