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 com.ewabackend.dao; import com.ewabackend.entity.Subject; import java.util.List; import org.hibernate.Criteria; import org.hibernate.criterion.Order; import org.springframework.stereotype.Repository; /** * * @author Milan */ @Repository("subjectDAO") public class SubjectDAOImplementation extends AbstractDAO<Integer, Subject> implements SubjectDAO { @Override public Subject findById(int id) { Subject subject = (Subject) getByKey(id); return subject; } @Override public Integer saveSubject(Subject subject) { persist(subject); return subject.getId(); } @Override public List<Subject> findAllSubjects() { Criteria criteria = createEntityCriteria().addOrder(Order.asc("id")); criteria.setResultTransformer(Criteria.DISTINCT_ROOT_ENTITY); List<Subject> subjects = (List<Subject>) criteria.list(); return subjects; } }