Spring 5 Design Patterns

The @Cacheable annotation

@Cacheable marks a method for caching. Its result is stored in a cache. For all subsequent invocations of that method with the same arguments, it will fetch data from the cache using a key. The method will not be executed. The following are the @Cacheable attributes:

• value: This is the name of cache to use
• key: This is the key for each cached data item
• condition: This is a SpEL expression to evaluate true or false; if it is false, then the result of caching is not applied to the method call
• unless: This too is a SpEL expression; if it is true, it prevents the return value from being put in the cache

You can use SpEL and argument(s) of method. Let's look at the following code for the simplest declaration of the ...