Java Naming and Directory Interface (JNDI)

The driver includes a JNDI ObjectFactory implementation, MongoClientFactory, that returns MongoClient instances based on a connection string.

Examples

The configuration of the MongoClientFactory differs depending on the application server. Below are examples of a few popular ones.

Wildfly (formerly JBoss)

1. In a Wildfly installation, create a new module for MongoDB at modules/system/layers/base/org/mongodb/main.

2. Copy the mongo-java-driver jar file into the module.

3. Add the following module.xml file into the module:

   <module xmlns="urn:jboss:module:1.3" name="org.mongodb">
      <resources>
          <resource-root path="mongo-java-driver-3.9.0.jar"/>
      </resources>
      <dependencies>
          <module name="javax.api"/>
          <module name="javax.transaction.api"/>
          <module name="javax.servlet.api" optional="true"/>
      </dependencies>
   </module>
   

4. Add a binding to JBoss’s naming subsystem configuration that references the above module, the MongoClientFactory class, and the connection string for the MongoDB cluster.

   <subsystem xmlns="urn:jboss:domain:naming:2.0">
       <bindings>
           <object-factory name="java:global/MyMongoClient" module="org.mongodb" class="com.mongodb.client.jndi.MongoClientFactory">
               <environment>
                   <property name="connectionString" value="mongodb://localhost:27017"/>
               </environment>
            </object-factory>
       </bindings>
       <remote-naming/>
   </subsystem>
   

A MongoClient instance will be accessible via the JNDI name java:global/LocalMongoClient.

Tomcat

1. In a Tomcat installation, copy the mongo-java-driver jar file into the lib directory.

2. In context.xml of a web application, add a resource that references the MongoClientFactory class, and the connection string for the MongoDB cluster:

   <Resource name="mongodb/MyMongoClient"
             auth="Container"
             type="com.mongodb.MongoClient"
             closeMethod="close"
             factory="com.mongodb.client.jndi.MongoClientFactory"
             singleton="true"
             connectionString="mongodb://localhost"/>
   

3. In web.xml of a web application, add a reference to the above resource:

   <resource-ref>
       <res-ref-name>
           mongodb/MyMongoClient
       </res-ref-name>
       <res-type>
           com.mongodb.MongoClient
       </res-type>
       <res-auth>
           Container
       </res-auth>
   </resource-ref>
   

A MongoClient instance will be accessible via the JNDI name mongodb/MyMongoClient in the java:comp/env context.