[jboss-user] [JNDI/Naming/Network] - accessing a database in jboss
Hi,
I have a small application where I access a database using ejb with jsp/servlets. The
application is working ok but I have a question about the mysql-ds.xml file and
ejb-jar.xml file.
I have pasted the 2 files below. The thing is at the moment I have specified the name of
the database in mysql-ds.xml. I would like to state this name in the ejb-jar.xml file so
that I do not have to change the name of the database everytime I have to access one.
Shall be thankful if somebody could advise me.
Ros
ejb-jar.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans
2.0//EN" "http://java.sun.com/dtd/ejb-jar_2_0.dtd">
<ejb-jar>
Customer Info Stateless Session Bean Application
<display-name>Customer Info Stateless Session Bean</display-name>
<enterprise-beans>
<ejb-name>CustomerInfoStateless</ejb-name>
com.ejb.CustomerInfoStatelessHome
com.ejb.CustomerInfoStateless
<ejb-class>com.ejb.CustomerInfoStatelessBean</ejb-class>
<session-type>Stateless</session-type>
<transaction-type>Container</transaction-type>
<resource-ref>
This is a reference to a JDBC database.
<res-ref-name>java:/MySqlDS</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
</resource-ref>
</enterprise-beans>
</ejb-jar>
mysql-ds.xml
<?xml version="1.0" encoding="UTF-8"?>
<!-- $Id: mysql-ds.xml 41016 2006-02-07 14:23:00Z acoliver $ -->
<!-- Datasource config for MySQL using 3.0.9 available from:
http://www.mysql.com/downloads/api-jdbc-stable.html
-->
<local-tx-datasource>
<jndi-name>MySqlDS</jndi-name>
<connection-url>jdbc:mysql://localhost:3306/customerdb</connection-url>
<driver-class>com.mysql.jdbc.Driver</driver-class>
<user-name>root</user-name>
<exception-sorter-class-name>org.jboss.resource.adapter.jdbc.vendor.MySQLExceptionSorter</exception-sorter-class-name>
<!-- should only be used on drivers after 3.22.1 with "ping" support
<valid-connection-checker-class-name>org.jboss.resource.adapter.jdbc.vendor.MySQLValidConnectionChecker</valid-connection-checker-class-name>
-->
<!-- sql to call when connection is created
<new-connection-sql>some arbitrary sql</new-connection-sql>
-->
<!-- sql to call on an existing pooled connection when it is obtained from pool -
MySQLValidConnectionChecker is preferred for newer drivers
<check-valid-connection-sql>some arbitrary
sql</check-valid-connection-sql>
-->
<!-- corresponding type-mapping in the standardjbosscmp-jdbc.xml (optional) -->
<type-mapping>mySQL</type-mapping>
</local-tx-datasource>
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