如何将 Hibernate 缓存与外部更改同步

如何解决如何将 Hibernate 缓存与外部更改同步

@Entity
@Table(name = "abc")
@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
public class Abc{

    @Id
    @GeneratedValue(strategy = GenerationType.SEQUENCE,generator = "sequenceGenerator")
    @SequenceGenerator(name = "sequenceGenerator")
    private Long id;

    @OnetoMany(mappedBy = "Abc")
    @Column(name = "name",nullable = false)
    private String name;

    @Cache
    private List<AbcAccess> accesses = new ArrayList<>();
}

@Entity
@Table(name = "abc_access")
@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
public class AbcAccess {

    @Id
    @GeneratedValue(strategy = GenerationType.SEQUENCE,generator = "sequenceGenerator")
    @SequenceGenerator(name = "sequenceGenerator")

    private Long id;

    @Column(name = "name",nullable = false)
    private String name;

    @ManyToOne(optional = false)
    private Abc abc;
}

背景：Spring Boot + Spring JPA (hibernate) + Ehcache，启用二级缓存。

Cache 是 org.hibernate.annotations.Cache

配置（用 kotlin 编写）：

@Configuration
@EnableCaching
class AbcConifg{


    private val jcacheConfiguration: javax.cache.configuration.Configuration<Any,Any>

    init {
        val ehcache = jHipsterProperties.cache.ehcache

        jcacheConfiguration = Eh107Configuration.fromEhcacheCacheConfiguration(
            CacheConfigurationBuilder.newCacheConfigurationBuilder(
                Any::class.java,Any::class.java,ResourcePoolsBuilder.heap(ehcache.maxEntries)
            )
                .withExpiry(ExpiryPolicyBuilder.timetoLiveExpiration(Duration.ofSeconds(ehcache.timetoLiveSeconds.toLong())))
                .build()
        )
    }

    @Bean
    fun hibernatePropertiesCustomizer(cacheManager: javax.cache.CacheManager) = HibernatePropertiesCustomizer {
        hibernateProperties -> hibernateProperties[ConfigSettings.CACHE_MANAGER] = cacheManager
    }
}

当我从数据库中查询 Abc 时，它会将结果缓存到二级缓存中。

现在我在数据库中再插入一个AbcAccess，然后我再次从数据库中查询Abc，它只会从缓存中获取结果。而 access 中的 Abc 不是实时的，它错过了一个 access。