6.2.4. Access Vendor Specific Classes

Summary

This topic covers the steps required to use the JDBC specific classes. This is necessary when an application needs to use vendor specific functionality that is not part of the JDBC API.

Warning

This is advanced usage. Only applications that need functionality not found in the JDBC API should implement this procedure.

Important

This process is required when using the reauthentication mechanism, and accessing vendor specific classes.

Important

Follow the vendor specific API guidelines closely, as the connection is being controlled by the IronJacamar container.

Prerequisites

Procedure 6.3. Add a Dependency to the Application

    • Configure the MANIFEST.MF file

      1. Open the application's META-INF/MANIFEST.MF file in a text editor.
      2. Add a dependency for the JDBC module and save the file. 
        Dependencies: MODULE_NAME

        Example 6.3. Example Dependency

        Dependencies: com.mysql

      1. Create a jboss-deployment-structure.xml file

        Create a file called jboss-deployment-structure.xml in the META-INF/ or WEB-INF folder of the application.

        Example 6.4. Example jboss-deployment-structure.xml file

        <jboss-deployment-structure>
  <deployment>
    <dependencies>
      <module name="com.mysql" />
    </dependencies>
  </deployment>
</jboss-deployment-structure>

Example 6.5. Access the Vendor Specific API

The example below accesses the MySQL API. 
import java.sql.Connection;
import org.jboss.jca.adapters.jdbc.WrappedConnection;

  Connection c = ds.getConnection();
  WrappedConnection wc = (WrappedConnection)c;
  com.mysql.jdbc.Connection mc = wc.getUnderlyingConnection();