Avoid having a huge collection of ids by calling a DAO.getAll()

Posted by Michael Bavin on Stack Overflow See other posts from Stack Overflow or by Michael Bavin
Published on 2010-04-08T11:38:19Z Indexed on 2010/04/08 11:43 UTC
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dao

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Performance

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hibernate

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java

Instead of returning a List<Long> of ids when calling PersonDao.getAll() we wanted not to have an entire collection of ids in memory.

Seems like returning a org.springframework.jdbc.support.rowset.SqlRowSet and iterate over this rowset would not hold every object in memory.

The only problem here is i cannot cast this row to my entity.

Is there a better way for this?

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