The Client libraries provides an interface to both Couchbase and Memcached clients using a consistent interface. The interface between your Java application and your Couchbase or Memcached servers is provided through the instantiation of a single object class, CouchbaseClient.

Creating a new object based on this class opens the connection to each configured server and handles all the communication with the server(s) when setting, retrieving and updating values. A number of different methods are available for creating the object specifying the connection address and methods.