Connect to Sybase Data from a Connection Pool in Jetty

The CData JDBC driver for Sybase is easy to integrate with Java Web applications. This article shows how to efficiently connect to Sybase data in Jetty by configuring the driver for connection pooling. You will configure a JNDI resource for Sybase in Jetty.

Configure the JDBC Driver for Salesforce as a JNDI Data Source

Follow the steps below to connect to Salesforce from Jetty.

1. Enable the JNDI module for your Jetty base. The following command enables JNDI from the command-line:

   java -jar ../start.jar --add-to-startd=jndi
2. Add the CData and license file, located in the lib subfolder of the installation directory, into the lib subfolder of the context path.

3. Declare the resource and its scope. Enter the required connection properties in the resource declaration. This example declares the Sybase data source at the level of the Web app, in WEB-INF\jetty-env.xml.

   <Configure id='sybasedemo' class="org.eclipse.jetty.webapp.WebAppContext"> <New id="sybasedemo" class="org.eclipse.jetty.plus.jndi.Resource"> <Arg><Ref refid="sybasedemo"/></Arg> <Arg>jdbc/sybasedb</Arg> <Arg> <New class="cdata.jdbc.sybase.SybaseDriver"> <Set name="url">jdbc:sybase:</Set> <Set name="User">myuser</Set> <Set name="Password">mypassword</Set> <Set name="Server">localhost</Set> <Set name="Database">mydatabase</Set> <Set name="Charset">iso_1</Set> </New> </Arg> </New> </Configure>

   To connect to Sybase, specify the following connection properties:

   • Server: Set this to the name or network address of the Sybase database instance.
   • Database: Set this to the name of the Sybase database running on the specified Server.

   Optionally, you can also secure your connections with TLS/SSL by setting UseSSL to true.

   Sybase supports several methods for authentication including Password and Kerberos.

   Connect Using Password Authentication

   Set the AuthScheme to Password and set the following connection properties to use Sybase authentication.

   • User: Set this to the username of the authenticating Sybase user.
   • Password: Set this to the username of the authenticating Sybase user.

   Connect using LDAP Authentication

   To connect with LDAP authentication, you will need to configure Sybase server-side to use the LDAP authentication mechanism.

   After configuring Sybase for LDAP, you can connect using the same credentials as Password authentication.

   Connect Using Kerberos Authentication

   To leverage Kerberos authentication, begin by enabling it setting AuthScheme to Kerberos. See the Using Kerberos section in the Help documentation for more information on using Kerberos authentication.

   You can find an example connection string below: Server=MyServer;Port=MyPort;User=SampleUser;Password=SamplePassword;Database=MyDB;Kerberos=true;KerberosKDC=MyKDC;KerberosRealm=MYREALM.COM;KerberosSPN=server-name

4. Configure the resource in the Web.xml:

   jdbc/sybasedb javax.sql.DataSource Container

5. You can then access Sybase with a lookup to java:comp/env/jdbc/sybasedb: InitialContext ctx = new InitialContext(); DataSource mysybase = (DataSource)ctx.lookup("java:comp/env/jdbc/sybasedb");

More Jetty Integration

The steps above show how to configure the driver in a simple connection pooling scenario. For more use cases and information, see the Working with Jetty JNDI chapter in the Jetty documentation.