WebOct 23, 2024 · To check the "production" behavior you should insert a em.detach statement just before the breakpoint or use logging (as suggested by Manza) and check em.getEntityManagerFactory ().getPersistenceUnitUtil ().isLoaded (fabricRoll1.fabricDefects ()) returns false on the detached entity. WebFeb 18, 2024 · java - JPA/Hibernate FetchType.LAZY is not working - Stack Overflow JPA/Hibernate FetchType.LAZY is not working Ask Question Asked 6 years ago Modified 6 years ago Viewed 2k times 0 Well, there are many questions exactly with this title but none of them have proper answers or they are not exactly the same as mine. I have two …
How to use FetchType.LAZY with ManyToMany? - Stack Overflow
WebFeb 4, 2024 · @OneToMany( mappedBy = "baseProduct", fetch = FetchType.LAZY, targetEntity = Variant.class cascade = CascadeType.ALL, orphanRemoval = true) List getVariants() { And the two add/remove methods: ... You need to implement equals and hashCode methods in the Variant child entity for the add and remove … WebMar 22, 2024 · You can activate lazy loading bytecode enhancement Or, you can just remove the parent side and use the client side with @MapsId as explained in this article. This way, you will find that you don’t really need the parent side since the child shares the same id with the parent so you can easily fetch the child by knowing the parent id. 1 Like qantas f flyer
NullPointerException happens with FetchType.LAZY withi …
WebJan 22, 2010 · First of all, you should know that the JPA specs clearly specifies that LAZY is only a hint to JPA providers, so it's not a mandatory requirement. For basic type lazy fetching to work, you need to enable bytecode enhancement and explicitly set the enableLazyInitialization configuration property to true: WebOct 8, 2016 · market.getChannelGroups(); // this is not working, market's channelGroups is still empty. The reason why this is happening might be the market.getChannelGroups() call is returning a proxy because of the lazy loading. The actual loading will happen when you call a method on the returned object which in this case is channel groups collection. WebFeb 4, 2024 · 在一个实体本质上是联合表(一个时期)的情况下,我将数据库域模型映射到程序实体上很难将其映射到程序实体,该模型(一个时期)结合了其他两个实体(a时插槽和一天).然后,另一个实体(课程)引用了此期间实体,确定何时发生.. 当我尝试使用saveOrUpdate(lesson) Hibernate的新期间保存课程时,请抛出标识 ... qantas fare watch emails