Spring @Cacheable default TTL

Question

I generally use the @Cacheable with a cache config in my spring-boot app and set specific TTL (time to live) for each cache.

I recently inherited a spring b

Answer 1

Actually, there is a better way than using @schedule, by extending the cacheManager which defines the ttl: Here is an example :

@Configuration
public class CacheConfig extends CachingConfigurerSupport {

@Value( "${redis.hostname}" )
private String redisHostName;

@Value( "${redis.port}" )
private int redisPort;

@Value("#{${redis.ttl}}")
private int DEFAULT_TTL;


@Bean
public JedisConnectionFactory redisConnectionFactory() {
    JedisConnectionFactory redisConnectionFactory = new JedisConnectionFactory();
    redisConnectionFactory.setHostName(redisHostName);
    redisConnectionFactory.setPort(redisPort);
    return redisConnectionFactory;
}

@Bean
public RedisTemplate redisTemplate(RedisConnectionFactory cf) {
    RedisTemplate redisTemplate = new RedisTemplate();
    redisTemplate.setConnectionFactory(cf);
    return redisTemplate;
}

@Bean
public CacheManager cacheManager(RedisTemplate redisTemplate) {
    RedisCacheManager cacheManager = new RedisCacheManager(redisTemplate);
    cacheManager.setDefaultExpiration(DEFAULT_TTL);
    return cacheManager;
}
}

pom dependency :

    org.springframework.boot
    spring-boot-starter-data-redis
    1.4.7.RELEASE