DetachedCriteria 实现多表关联，检索条件

[java]
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DetachedCriteria queryCriteria = DetachedCriteria.forClass(Rsvmain.class);  
if (ObjectUtils.isNotEmpty(query.getUnitinfoName())) {  
                DetachedCriteria unitinfo = DetachedCriteria.forClass(Unitinfo.class);  
                unitinfo.add(Restrictions.like("unitnm", "%" + query.getUnitinfoName() + "%"));  
                unitinfo.setProjection(Property.forName("id"));  
                queryCriteria.add(Property.forName("unitinfoId").in(unitinfo));  
            }  
            if (ObjectUtils.isNotEmpty(query.getMemberName())) {  
                DetachedCriteria member = DetachedCriteria.forClass(Member.class);  
                member.add(Restrictions.disjunction()  
                        .add(Restrictions.like("lastnm", "%" + query.getMemberName() + "%"))  
                        .add(Restrictions.like("firstnm", "%" + query.getMemberName() + "%"))  
                        .add(Restrictions.like("altnm", "%" + query.getMemberName() + "%")));  
                member.setProjection(Property.forName("id"));  
                queryCriteria.add(Property.forName("memberId").in(member));  
            }  
            if (ObjectUtils.isNotEmpty(query.getStartdt()) || ObjectUtils.isNotEmpty(query.getEnddt())) {  
                DetachedCriteria rsvdtl = DetachedCriteria.forClass(Rsvdtl.class);  
                if (ObjectUtils.isNotEmpty(query.getStartdt())) {  
                    rsvdtl.add(Restrictions.ge("cidt", query.getStartdt()));  
                }  
                if (ObjectUtils.isNotEmpty(query.getEnddt())) {  
                    rsvdtl.add(Restrictions.le("codt", query.getEnddt()));  
                }  
                rsvdtl.setProjection(Property.forName("rsvmainId"));  
                queryCriteria.add(Property.forName("id").in(rsvdtl));  
            }