By Jason/GeW

1. Memcached Singleton client bases on XMemcashed client, a personal wrapper.

2. The code can be integrated into Spring Boot bean.

3. This code provides example for getting Memcached value which is set by C# Enyim Client.

4. The basic client will not be optimized too often, but will add necessary functions for better usages.

5. For multiple data type caching, please see Redis Client.