Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package th.co.geniustree.dental.spec; import javax.persistence.criteria.CriteriaBuilder; import javax.persistence.criteria.CriteriaQuery; import javax.persistence.criteria.Predicate; import javax.persistence.criteria.Root; import org.springframework.data.jpa.domain.Specification; import th.co.geniustree.dental.model.Bill_; import th.co.geniustree.dental.model.OrderProduct; import th.co.geniustree.dental.model.OrderProduct_; /** * * @author BestKung */ public class OrderProductSpecificaton { public static Specification<OrderProduct> whereBill(final Integer keyword) { return new Specification<OrderProduct>() { @Override public Predicate toPredicate(Root<OrderProduct> root, CriteriaQuery<?> query, CriteriaBuilder cb) { return cb.equal(root.get(OrderProduct_.bill).get(Bill_.id), keyword); } }; } }