Mastering Spring Application Development

Implementing your own caching algorithm

In this section, let us start by implementing a simple cache algorithm and see its draw backs, and then show how spring caching can be used to solve the problems.

Let's draw a simple flow chart to look at the caching scenario:

Let's see how we can implement caching in a simple way. Think of generating a Fibonacci number. A Fibonacci number is generated by adding its previous two Fibonacci numbers. So we can compute a simple class in java and see how we can use caching here.

Let's create a map to cache the objects:

import java.util.HashMap; import java.util.Map; public class FibonacciCache { private Map<Long, Long> ...