How to avoid caching null values in redis cache

Question

@CacheResult(cacheName = "testCache)
public Employee geteEmployee(@CacheKey String empId) {
   //logic
   return employee;
}

If employee is null, that null value should not be cached.

Answer 1

You can set the cacheNull property to false.

cacheNull

public abstract boolean cacheNull

If set to false null return values will not be cached. If true (the default) null return values will be cached.

Defaults to true.

Default: true

@CacheResult(cacheName = "testCache", cacheNull = false)