Bind JNDI datasource in tomcat?

Question

Is it possible to bind programatically a DataSource to Tomcat's 6 JNDI? I want to create a DataSource on the fly and then make it available through JNDI ( to ColdFusion for instance ). This is what I have: ``` public void bindToConext(DataSource dataSource) throws NamingException, SQLException { Context initContext = new InitialContext(); Context envContext = (Context)initContext.lookup("java:/comp/env"); envContext.bind("jdbc/mydatasource", dataSource); } ``` But I'm getting this exception: ``` javax.naming.OperationNotSupportedException: Context is read only ``` Is there a work around?

Accepted Answer

Well it was not possible because tomcat's context becomes read-only after startup.

So what we did was to use SimpleJNDI which is a in memory context ( more like a glorified HashMap ) and that worked for us.

It needs a `jndi.properties` file that has to be in the classpath and where you define the directory where to look for resources and the initial context factory

```
java.naming.factory.initial=org.osjava.sj.SimpleContextFactory
org.osjava.sj.root=some/relative/path
org.osjava.jndi.delimiter=/
org.osjava.sj.jndi.shared=true
```

To make the binding with ColdFusion first we create the data source programatically and then bind it to the context:

```
DataSource ds = ...
Context c = new InitialContext();
c.bind( "jdbc/my/blah/"+var , ds );
...
```

Then using CF admin api we create a CF datasource of type JNDI just using the jndiname

Bind JNDI datasource in tomcat?

Solution

Problem