Java EE 8 Design Patterns and Best Practices

Local (in-memory) caching

In order to improve the process of reading data, a cache can be local and in-memory as long as that data is accessed frequently. As the local cache is private, another cache will need to be created. In this instance, data can be replicated to any local cache. To implement a local cache, we need to have a server with enough memory to permit our application and to ensure we do not cause memory overflow.