Hello Sven,
you have to declare resource-ref in jboss-web.xml. The excerpt from
jboss-web_3_0.dtd explains:
<!--The resource-ref element maps from the servlet ENC relative name
of the resource-ref to the deployment environment JNDI name of
the resource manager connection factory.
Example:
<resource-ref>
<res-ref-name>jdbc/TheDataSource</res-ref-name>
<jndi-name>java:/DefaultDS</jndi-name>
</resource-ref>
-->
The same is right for jboss-web.dtd.
alex
Thursday, July 04, 2002, 1:33:01 AM, you wrote:
SK> I have an web application that is looking up DataSource's like they are
SK> provided in Tomcat[1]
SK> The app tries to look them up like this:
SK> Context initCtx = new InitialContext();
SK> Context envCtx = (Context) initCtx.lookup("java:comp/env");
SK> DataSource ds = (DataSource)envCtx.lookup("jdbc/MyDS");
SK> I have not managed to get this code working with JBoss 2.4.4-Tomcat. It
SK> keeps saying:
SK> javax.naming.NamingException: Could not dereference object. Root
SK> exception is java.lang.NullPointerException
SK> at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:418)
SK> at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:333)
SK> [...]
SK> My mbean looks like this:
SK> <mbean code="org.jboss.jdbc.JDBCDataSourceLoader"
SK> name="DefaultDomain:service=JDBCDataSource,name=jdbc/MyDS">
SK> <attribute name="PoolName">jdbc/MyDS</attribute>
SK> <attribute
SK> name="DataSourceClass">org.gjt.mm.mysql.MysqlDataSource</attribute> ...
SK> I can change the code above to
SK> DataSource ds = (DataSource)initCtx.lookup("java:/jdbc/MyDS");
SK> and it will work. So, the problem narrows down to some JNDI magic!?
SK> Sven....
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--
Best regards,
Alex Loubyansky
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