So far, in the previous chapters, we have understood how to create buckets and store documents in them using the bucket editor via the web admin console. We have also discussed some of the guidelines used for designing document-based database systems.
What if we need to connect and perform operations on the Couchbase cluster from an application? This can be achieved using the Couchbase client libraries, which are also collectively known as Couchbase Software Development Kit (SDK). The Couchbase SDK APIs are language dependent. The concepts remain the same and are applicable to all languages that are supported by the SDK. However, there are some features such as thread safe, asynchronous operations, and so on that are language dependent. For example, thread safe features are tested and certified for Java SDK and .NET SDK, version 1.0 and above.
You can refer to the Couchbase website (http://docs.couchbase.com/developer/dev-guide-3.0/thread-safety.html) for further details...