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Connect to MongoDB Data from a Connection Pool in Jetty

The MongoDB JDBC Driver supports connection pooling: This article shows how to connect faster to MongoDB data from Web apps in Jetty.

The CData JDBC driver for MongoDB is easy to integrate with Java Web applications. This article shows how to efficiently connect to MongoDB data in Jetty by configuring the driver for connection pooling. You will configure a JNDI resource for MongoDB 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 MongoDB data source at the level of the Web app, in WEB-INF\jetty-env.xml.

    <Configure id='mongodbdemo' class="org.eclipse.jetty.webapp.WebAppContext"> <New id="mongodbdemo" class="org.eclipse.jetty.plus.jndi.Resource"> <Arg><Ref refid="mongodbdemo"/></Arg> <Arg>jdbc/mongodbdb</Arg> <Arg> <New class="cdata.jdbc.mongodb.MongoDBDriver"> <Set name="url">jdbc:mongodb:</Set> <Set name="Server">MyServer</Set> <Set name="Port">27017</Set> <Set name="Database">test</Set> <Set name="User">test</Set> <Set name="Password">Password</Set> </New> </Arg> </New> </Configure>

    Set the Server, Database, User, and Password connection properties to connect to MongoDB. To access MongoDB collections as tables you can use automatic schema discovery or write your own schema definitions. Schemas are defined in .rsd files, which have a simple format. You can also execute free-form queries that are not tied to the schema.

  4. Configure the resource in the Web.xml:

    jdbc/mongodbdb javax.sql.DataSource Container
  5. You can then access MongoDB with a lookup to java:comp/env/jdbc/mongodbdb: InitialContext ctx = new InitialContext(); DataSource mymongodb = (DataSource)ctx.lookup("java:comp/env/jdbc/mongodbdb");

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.