> # Specifying Application IDs

> Application IDs are alphanumeric strings passed by a SequeLink Client that identify the client application to a SequeLink service that has been configured to accept connections only from specific application IDs.

> After establishing a connection with the JDBC driver, immediately invoke setApplicationId. The setApplicationId method is defined on the interface com.ddtek.jdbc.extensions.SlExtensionInterface, and uses the following method prototype:

>     public void setApplicationId(String s) throws SQLException

> You can set the application ID as shown in the following example:

>     import java.sql.*;
>     import com.ddtek.jdbc.extensions.SlExtensionInterface;
>     ...
>     Connection con = DriverManager.getConnection(...);
>     String appId = "myAppID";
>     if (con instanceof SlExtensionInterface)
>        {
>        SlExtensionInterface slCon = (SlExtensionInterface)con;
>        slCon.setApplicationId(myAppID);
>        }

> where `myAppID` is the application ID.

> For more information about configuring SequeLink services to accept connections only from specific application IDs, refer to the SequeLink Administrator's Guide.