Don't be tempted to hand-write queries that are equivalent to navigations between entities:
BatchControlId batchControlId = ... Query<BatchControlParameter> query = createQuery("from BatchControlParameter parm where parm.id.batchControlId = :parentId"); query.bindId("parentId", batchControlId); List<BatchControlParameter> list = query.list();
DO: Use this instead - it'll use the cache and will almost certainly be faster:
BatchControl batchControl = id.getEntity(); if (batchControl == null) { /* oh oh */ } BatchControlParameters list = batchControl.getParameters();
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