Hibernate Criteria?? SQL ?? ????(?? ?? ??)
Hibernate Criteria API? ??? ??? ???? ?? ???? ???? ?? ??? ?????. ??? ?? ??? SQL? ???? ???? ??? ???? ????. ?? ?? SQL? ??? ?? ???? ??? ?? ??? ?? ??? SQL ??? ????? ? ? ??? ? ? ????.
? ??? ????? ??? ???? Hibernate Criteria?? ?? SQL? ??? ? ????.
CriteriaImpl criteriaImpl = (CriteriaImpl)criteria;
SessionImplementor session = criteriaImpl.getSession();
SessionFactoryImplementor factory = session.getFactory();
CriteriaQueryTranslator translator = new CriteriaQueryTranslator(factory, criteriaImpl, criteriaImpl.getEntityOrClassName(), CriteriaQueryTranslator.ROOT_SQL_ALIAS);
String[] implementors = factory.getImplementors(criteriaImpl.getEntityOrClassName());
CriteriaJoinWalker walker = new CriteriaJoinWalker((OuterJoinLoadable)factory.getEntityPersister(implementors[0]),
translator,
factory,
criteriaImpl,
criteriaImpl.getEntityOrClassName(),
session.getLoadQueryInfluencers());
String sql = walker.getSQLString();
? ??:
- Criteria ??? CriteriaImpl ??? ?????.
- SessionImplementor ? SessionFactoryImplementor ????? ?????.
- SQL ?? ??? ?? CriteriaQueryTranslator? ????.
- ?? ?? ???? ?? ??? ??? ?????.
- ??? ?? ??? ???? SQL ??? ???? CriteriaJoinWalker? ????.
- ????? CriteriaJoinWalker?? SQL ???? ?????.
? ??? ???? Hibernate Criteria? ??? SQL ??? ?? ???? ???? ?? ??, ?? ??? ?? ?? SQL? ??? ?? ????? ??? ??????.
? ??? Hibernate ?? ???? ?? SQL ??? ??? ??? ? ?????? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!
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