Hibernate3.x过滤器的高级应用 - 编程入门网

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Session session = ...; session.enabledFilter("effectiveDate").setParameter("asOfDate", new Date()); List results = session.createQuery("from Employee as e where e.salary > :targetSalary") .setLong("targetSalary", new Long(1000000)) .list();

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<filter-def name="accessLevel"> ?? <filter-param name="userLevel" type="int"/> </filter-def> <class name="Opportunity" ...> ?? ... ?? <many-to-one name="region" column="region_id" class="Region"/> ?? <property name="amount" type="Money"> ???? <column name="amt"/> ???? <cloumn name="currency"/> ?? </property> ?? <property name="accessLevel" type="int" column="access_lvl"/> ?? ... ?? <filter name="accessLevel">= access_lvl]]> </class> <class name="Region" ...> ... <set name="opportunities" lazy="true"> ?? <key column="region_id"/> ?? <one-to-many class="Opportunity"/> ?? <filter name="accessLevel">= access_lvl]]> </set> ... </class>

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User user = ...; Session session = ...; session.enableFilter("accessLevel").setParameter("userLevel", user.getAccessLevel());

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Region region = (Region) session.get(Region.class, "EMEA"); region.getOpportunities().size();

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