You can access XA support for the Network Server by using the network client driver's XA DataSource interface.
The interface org.apache.derby.jdbc.ClientXADataSource is available on all supported Java SE platforms. If your client runs on the Java SE 6 platform, and if you want to use XA DataSource methods specific to the JDBC 4 API, use the DataSource named org.apache.derby.jdbc.ClientXADataSource40.
If your client is running on the Java SE 6 platform, all connection objects returned from the DataSource will be JDBC 4 connection objects, whether or not you are using the DataSource whose name ends in "40".
The following example illustrates how to obtain an XA connection with the network client driver:
import org.apache.derby.jdbc.ClientXADataSource;
import javax.sql.XAConnection;
...
XAConnection xaConnection = null;
Connection conn = null;
String driver = "org.apache.derby.jdbc.ClientDataSource";
ClientXADataSource ds = new ClientXADataSource();
ds.setDatabaseName ("sample;create=true");
ds.setServerName("localhost");
ds.setPortNumber(1527);
Class.forName(driver);
xaConnection = ds.getXAConnection("auser", "shhhh");
conn = xaConnection.getConnection();