QueryPlanCache会缓存sql,以便于相同的sql重复编译 如果大量使用in查询,由于参数数量不同,hibernate会把其当成不同的sql进行缓存,从而缓存大量的sql导致heap内存溢出。 解决 添加配置参数限制缓存的sql数量 代码语言:javascript 复制 spring:jpa:hibernate:properties:hibernate:query:plan_cache_max_size:64#缓存大小,默认...
Methods inherited from interface org.apache.openjpa.persistence.FetchPlan getDelegate,getFetchBatchSize,getFetchGroups,getFields,getLockTimeout,getMaxFetchDepth,getQueryResultCache,getQueryResultCacheEnabled,getReadLockMode,getWriteLockMode,hasField,hasField,setQueryResultCache ...
Spring Data JPA 为了方便我们排序和分页,支持了两个特殊类型的参数:Sort 和 Pageable。 Pageable 是一个接口,里面有常见的分页方法排序、当前页、下一行、当前指针、一共多少页、页码、pageSize 等。 在查询方法中如何使用 Pageable 和 Sort 呢?下面代码定义了根据 Lastname 查询 User 的分页和排序的实例,此段代...
541 9.2.6. QueryResultCache ... 541 9.2.7. FetchPlan ... 541 9.2.8. KodoPersistence ...
@Getter@Setter@ToString@RequiredArgsConstructor@EntitypublicclassBlogpost{@Id@GeneratedValue(strategy=GenerationType.IDENTITY)privateLongid;@NotEmpty@Size(min=5,max=255)@Column(unique=true)privateStringtitle;@NotEmpty@Column(columnDefinition="TEXT")privateStringcontent;@NotEmpty@ElementCollection(fetch=FetchType...
org.apache.openjpa.jdbc.kernel.exps.Size.class org.apache.openjpa.jdbc.kernel.exps.Sqrt.class org.apache.openjpa.jdbc.kernel.exps.StartsWithExpression.class org.apache.openjpa.jdbc.kernel.exps.StringFunction.class org.apache.openjpa.jdbc.kernel.exps.StringLength.class org.apache.openjpa.jdbc...
getMaxFetchDepth()); _state.cacheNonDefaultFetchPlanQueries = conf.getCompatibilityInstance().getCacheNonDefaultFetchPlanQueries(); } 代码示例来源:origin: org.apache.openjpa/openjpa-kernel public void setContext(StoreContext ctx) { // can't reset non-null context to another context if (ctx !
1.8.4. Result Set Size Hint 1.8.5. Isolation Level Hint 1.8.6. Other Fetchplan Hints 1.8.7. Database-Specific Hints 1.8.8. Named Query Hints 1.8.9. Handling of Multiple Similar Query Hints 1.9. Ordering 1.10. Aggregates 1.11. Named Queries 1.12. Delete By Query 1.13. ...
change fs/file-max to LONG_MAX instead of ULONG_MAX Jun 4, 2020 mkosi.build mkosi: Unify environment for unit tests Apr 22, 2020 mkosi.default mkosi: create .mkosi directory Oct 6, 2016 zanata.xml po: add basic fedora.zanata.org configuration Feb 19, 2018 Repository files navigation ...
<prop key="hibernate.max_fetch_depth">3</prop> <prop key="hibernate.jdbc.fetch_size">18</prop> <prop key="hibernate.jdbc.batch_size">10</prop> <!-- 自动建表类型 validate|create|create-drop|update --> <!-- <prop key="hibernate.hbm2ddl.auto">validate</prop> --> ...