[英]Will Hibernate findByCriteria cause Java heap memory issue?
I have little knowledge about Hibernate. 我对Hibernate知之甚少。 I am calling findByCriteria(DetachedCriteria criteria) method, but I noticed that it returns a List.
我在调用findByCriteria(DetachedCriteria条件)方法,但是我注意到它返回一个List。 My worry is if it will cause Java heap memory issue when the database returns very large result.
我担心的是,当数据库返回非常大的结果时,是否会导致Java堆内存问题。 In my next code, I am looping through this returned list and do something on reach record.
在我的下一个代码中,我遍历此返回的列表并在到达记录上做一些事情。 I noticed that findByCriteria(DetachedCriteria criteria) is internally calling findByCriteria(criteria, -1, -1).
我注意到findByCriteria(DetachedCriteria条件)在内部调用findByCriteria(criteria,-1,-1)。 Could someone enlighten me?
有人可以启发我吗?
Apart from pagination , limiting what results you are displaying will avoid lot of data from getting into the java heap space. 除了分页之外,限制显示的结果将避免大量数据进入Java堆空间。 From my personal experience I was able to remove the issues with the memory by limiting the fields that I am displaying.
根据我的个人经验,我可以通过限制要显示的字段来消除内存问题。
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