com.springskeleton.dao.impl.BaseDaoImpl.java Source code

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Here is the source code for com.springskeleton.dao.impl.BaseDaoImpl.java

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package com.springskeleton.dao.impl;

import java.util.List;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.query.Query;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Repository;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;
import com.springskeleton.dao.BaseDao;

/**
 *
 * @author krystofurr
 */
@Repository("baseDao")
public class BaseDaoImpl implements BaseDao {

    @Autowired
    @Qualifier("springSkeletonSessionFactory")
    private SessionFactory sessionFactory;

    public Session getSession() {
        return sessionFactory.getCurrentSession();
    }

    @Override
    @Transactional(value = "springSkeletonTransactionManager", propagation = Propagation.REQUIRED)
    public <T> List<T> findAll(Class<T> clazz) {

        List<T> entities = null;
        Session session = sessionFactory.getCurrentSession();
        Query query = session.createQuery("from " + clazz.getName());
        entities = query.list();
        return entities;
    }

    @Override
    @Transactional(value = "springSkeletonTransactionManager", propagation = Propagation.REQUIRED)
    @SuppressWarnings("unchecked")
    public <T> T findById(Integer id, Class<T> clazz) {

        if (id == null)
            return null;

        T entity = null;
        Session session = sessionFactory.getCurrentSession();
        entity = (T) session.get(clazz, id);
        return entity;
    }

    @Override
    @Transactional(value = "springSkeletonTransactionManager", propagation = Propagation.REQUIRED)
    public <T> Integer save(T entity) {

        Session session = sessionFactory.getCurrentSession();
        Integer entityId = (Integer) session.save(entity);
        session.flush();
        return entityId;
    }

    @Override
    @Transactional(value = "springSkeletonTransactionManager", propagation = Propagation.REQUIRED)
    public <T> Integer saveNoFlush(T entity) {

        Session session = sessionFactory.getCurrentSession();
        Integer entityId = (Integer) session.save(entity);
        return entityId;
    }

    @Override
    @Transactional(value = "springSkeletonTransactionManager", propagation = Propagation.REQUIRED)
    public <T> boolean update(T entity) {

        Session session = sessionFactory.getCurrentSession();
        session.update(entity);
        session.flush();
        return true;
    }

    @Override
    @Transactional(value = "springSkeletonTransactionManager", propagation = Propagation.REQUIRED)
    public <T> boolean updateNoFlush(T entity) {

        Session session = sessionFactory.getCurrentSession();
        session.update(entity);
        return true;
    }

    @Override
    @Transactional(value = "springSkeletonTransactionManager", propagation = Propagation.REQUIRED)
    public <T> boolean delete(T entity) {

        Session session = sessionFactory.getCurrentSession();
        session.delete(entity);
        session.flush();
        return true;
    }

    @Override
    @Transactional(value = "springSkeletonTransactionManager", propagation = Propagation.REQUIRED)
    public void flush() {

        Session session = sessionFactory.getCurrentSession();
        session.flush();

    }

    @Override
    @Transactional(value = "springSkeletonTransactionManager", propagation = Propagation.REQUIRED)
    public void clear() {

        Session session = sessionFactory.getCurrentSession();
        session.clear();

    }
}