Question

I was working with spring-ehcache-annotations and came across following scenario:

I have a simple POJO as follows

class Person{
 private Long id;
 private String name
 //some code
}

Now in DAO I have

public Person getPerson(Long personId){}

public Person UpdatePerson(Person person){}

Now in update person I need parameter of class Person and I need to use personId of person as the key to cache.

This can be achieved by implmenenting CacheKeyGenerator for each class or putting blocks of if/else but can we have some configurable thing to give field of parameter to take as key ?

Answer 1

Can you switch to Spring 3.1 cache abstraction?

Your use case is then easily solvable by:

@Cacheable(key="#person.personId")

annotation.