Calling a data source in an application
- Last Updated: August 9, 2019
- 1 minute read
- DataDirect Connectors
- JDBC
- Google BigQuery 6.0
- Documentation
Applications can call a Progress DataDirect data source using a logical name
to retrieve the javax.sql.DataSource object. This object loads the specified
driver and can be used to establish a connection to the database.
Once the data source has been registered with JNDI, it can be used by your JDBC application as shown in the following code example.
Context ctx = new InitialContext();
DataSource ds = (DataSource)ctx.lookup("EmployeeDB");
Connection con = ds.getConnection();
In this example, the JNDI environment is first initialized. Next, the initial
naming context is used to find the logical name of the data source
(EmployeeDB). The Context.lookup() method returns a
reference to a Java object, which is narrowed to a javax.sql.DataSource
object. Then, the DataSource.getConnection() method is called to establish a
connection.