Can JNDI store a datasource? It is supposed to...

Question

I am trying to learn how to use JNDI to store a datasource.
If I use the DataSource as below (without JNDI), the path and process works:
connection = mysqlDataSource.getConnection();However, I want to try to retrieve the connection via a Context,
and am unsuccessful in creating the initial association, like this:
MysqlDataSource dataSource = new MysqlDataSource();
dataSource.setUrl( "jdbc:mysql://127.0.0.1:3306/test" );
dataSource.setUser( stringUser );
dataSource.setPassword( stringPass );
String stringDataSourceMYS = "com.mysql.jdbc.jdbc2.optional.MysqlDataSource";
Properties properties = new Properties();
properties.put( Context.INITIAL_CONTEXT_FACTORY, stringDataSourceMYS );
properties.put( Context.PROVIDER_URL , "jdbc:mysql://127.0.0.1:3306/test" );
Context context = new InitialContext( properties );
context.bind( "jdbc/mySql" , dataSource );It renders the following error:
javax.naming.NoInitialContextException:
Cannot instantiate class: com.mysql.jdbc.jdbc2.optional.MysqlDataSource
[Root exception is java.lang.ClassCastException]This follows the example in the JDBC optional doc, but does not work.
I do not think this is a path issue (since it works w/o using the context bind).
I do not know what I need to make it "bind" properly.
Can anyone help with this? Thank You.

Answer 1

Context.PROVIDER_URL is the url of the JNDI provider url not the jdbc connection string.
Context.INITIAL_CONTEXT_FACTORY is the initial context factory class name not the jdbc driver class name.
Take a look at the jndi examples for your application server!
If you are running inside the app server you probobally just need to use
Context context = new InitialContext();