Hibernate-BaseDaoImpl

作者: guodd369 | 来源:发表于2017-11-20 14:02 被阅读6次
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package cn.hacz.edu.dao.impl;

import java.io.Serializable;
import java.math.BigInteger;
import java.time.LocalDateTime;
import java.util.Collection;
import java.util.List;
import java.util.Map;

import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;

import org.hibernate.Query;
import org.hibernate.SQLQuery;
import org.hibernate.Session;
import org.hibernate.transform.Transformers;
import org.springframework.stereotype.Repository;

import cn.hacz.edu.dao.BaseDaoI;
import cn.hacz.edu.entity.base.BaseEntity;
import cn.hacz.edu.entity.base.PageHelper;

@Repository(value = "baseDaoI")
@SuppressWarnings("unchecked")
public class BaseDaoImpl<T extends BaseEntity> implements BaseDaoI<T> {

    @PersistenceContext
    private EntityManager entityManager;

    @Override
    public Session getCurrentSession() {
        return entityManager.unwrap(Session.class);
    }

    @Override
    public Serializable save(T o) {
        if (o != null) {
            o.setCreateDateTime(LocalDateTime.now());
            o.setModifyDateTime(LocalDateTime.now());
            o.setDeleted(false);
            return getCurrentSession().save(o);
        }
        return null;
    }

    @Override
    public void saveOrUpdate(T o) {
        if (o != null) {
            o.setCreateDateTime(LocalDateTime.now());
            o.setModifyDateTime(LocalDateTime.now());
            o.setDeleted(false);
            getCurrentSession().saveOrUpdate(o);
        }

    }

    @Override
    public void delete(T o) {
        if (o != null) {
            getCurrentSession().delete(o);
        }

    }

    @Override
    public void update(T o) {
        if (o != null) {
            o.setModifyDateTime(LocalDateTime.now());
            getCurrentSession().update(o);
        }

    }

    @Override
    public T get(Class<T> c, Serializable id) {
        return (T) getCurrentSession().get(c, id);
    }

    @Override
    public T get(String hql) {
        Query query = getCurrentSession().createQuery(hql);
        List<T> list = query.list();
        if (list != null && list.size() > 0) {
            return list.get(0);
        }
        return null;
    }

    @Override
    public T get(String hql, Object... params) {
        Query query = getCurrentSession().createQuery(hql);
        if (params != null && params.length > 0) {
            for (int i = 0; i < params.length; i++) {
                query.setParameter(i, params[i]);
            }
        }
        List<T> list = query.list();
        if (list != null && list.size() > 0) {
            return list.get(0);
        }

        return null;
    }

    @Override
    public T get(String hql, Map<String, Object> params) {
        Query query = getCurrentSession().createQuery(hql);
        if (params != null && !params.isEmpty()) {
            for (String key : params.keySet()) {
                Object obj = params.get(key);
                // 这里考虑传入的参数是什么类型，不同类型使用的方法不同
                if (obj instanceof Collection<?>) {
                    query.setParameterList(key, (Collection<?>) obj);
                } else if (obj instanceof Object[]) {
                    query.setParameterList(key, (Object[]) obj);
                } else {
                    query.setParameter(key, obj);
                }
            }
            List<T> l = query.list();
            if (l != null && l.size() > 0) {
                return l.get(0);
            }
        }
        return null;
    }

    @Override
    public List<T> find(String hql) {
        Query query = getCurrentSession().createQuery(hql);
        return query.list();
    }

    @Override
    public List<T> find(String hql, PageHelper ph) {
        Query query = getCurrentSession().createQuery(hql);
        return query.setFirstResult(ph.getPage() - 1 + ph.getRows()).setMaxResults(ph.getRows()).list();
    }

    @Override
    public List<T> find(String hql, Object... params) {
        Query query = getCurrentSession().createQuery(hql);
        if (params != null && params.length > 0) {
            for (int i = 0; i < params.length; i++) {
                query.setParameter(i, params[i]);
            }
        }
        return query.list();
    }

    @Override
    public List<T> find(String hql, Map<String, Object> params) {
        Query query = getCurrentSession().createQuery(hql);
        if (params != null && !params.isEmpty()) {
            for (String key : params.keySet()) {
                Object obj = params.get(key);
                // 这里考虑传入的参数是什么类型，不同类型使用的方法不同
                if (obj instanceof Collection<?>) {
                    query.setParameterList(key, (Collection<?>) obj);
                } else if (obj instanceof Object[]) {
                    query.setParameterList(key, (Object[]) obj);
                } else {
                    query.setParameter(key, obj);
                }
            }
        }
        return query.list();
    }

    @Override
    public List<T> find(String hql, Map<String, Object> params, PageHelper ph) {
        Query query = getCurrentSession().createQuery(hql);
        if (params != null && params.isEmpty()) {
            for (String key : params.keySet()) {
                Object obj = params.get(key);
                // 这里考虑传入的参数是什么类型，不同类型使用的方法不同
                if (obj instanceof Collection<?>) {
                    query.setParameterList(key, (Collection<?>) obj);
                } else if (obj instanceof Object[]) {
                    query.setParameterList(key, (Object[]) obj);
                } else {
                    query.setParameter(key, obj);
                }
            }
        }
        return query.setFirstResult(ph.getPage() - 1 + ph.getRows()).setMaxResults(ph.getRows()).list();
    }

    @Override
    public Long count(String hql) {
        Query query = getCurrentSession().createQuery(hql);
        return (Long) query.uniqueResult();
    }

    @Override
    public Long count(String hql, Object... params) {
        Query query = getCurrentSession().createQuery(hql);
        if (params != null && params.length > 0) {
            for (int i = 0; i < params.length; i++) {
                query.setParameter(i, params[i]);
            }
        }
        return (Long) query.uniqueResult();
    }

    @Override
    public Long count(String hql, Map<String, Object> params) {
        Query query = getCurrentSession().createQuery(hql);
        if (params != null && !params.isEmpty()) {
            for (String key : params.keySet()) {
                Object obj = params.get(key);
                // 这里考虑传入的参数是什么类型，不同类型使用的方法不同
                if (obj instanceof Collection<?>) {
                    query.setParameterList(key, (Collection<?>) obj);
                } else if (obj instanceof Object[]) {
                    query.setParameterList(key, (Object[]) obj);
                } else {
                    query.setParameter(key, obj);
                }
            }
        }
        return (Long) query.uniqueResult();
    }

    @Override
    public int execute(String hql) {
        Query query = getCurrentSession().createQuery(hql);
        return query.executeUpdate();
    }

    @Override
    public int execute(String hql, Object... params) {
        Query query = getCurrentSession().createQuery(hql);
        if (params != null && params.length > 0) {
            for (int i = 0; i < params.length; i++) {
                query.setParameter(i, params[i]);
            }
        }
        return query.executeUpdate();
    }

    @Override
    public int execute(String hql, Map<String, Object> params) {
        Query query = getCurrentSession().createQuery(hql);
        if (params != null && !params.isEmpty()) {
            for (String key : params.keySet()) {
                Object obj = params.get(key);
                // 这里考虑传入的参数是什么类型，不同类型使用的方法不同
                if (obj instanceof Collection<?>) {
                    query.setParameterList(key, (Collection<?>) obj);
                } else if (obj instanceof Object[]) {
                    query.setParameterList(key, (Object[]) obj);
                } else {
                    query.setParameter(key, obj);
                }
            }
        }
        return query.executeUpdate();
    }

    @Override
    public List<?> findBySql(String sql) {
        SQLQuery sqlQuery = getCurrentSession().createSQLQuery(sql);
        return sqlQuery.setResultTransformer(Transformers.ALIAS_TO_ENTITY_MAP).list();
    }

    @Override
    public List<?> findBySql(String sql, PageHelper ph) {
        SQLQuery sqlQuery = getCurrentSession().createSQLQuery(sql);
        return sqlQuery.setFirstResult((ph.getPage() - 1) * ph.getRows()).setMaxResults(ph.getRows()).setResultTransformer(Transformers.ALIAS_TO_ENTITY_MAP).list();
    }

    @Override
    public List<?> findBySql(String sql, List<Object> params) {
        SQLQuery sqlQuery = getCurrentSession().createSQLQuery(sql);
        if (params != null && params.size() > 0) {
            for (int i = 0; i < params.size(); i++) {
                sqlQuery.setParameter(i, params.get(i));
            }
        }
        return sqlQuery.setFirstResult(0).setMaxResults(10).setResultTransformer(Transformers.ALIAS_TO_ENTITY_MAP).list();
    }

    @Override
    public List<?> findBySql(String sql, Map<String, Object> params) {
        SQLQuery sqlQuery = getCurrentSession().createSQLQuery(sql);
        if (params != null && !params.isEmpty()) {
            for (String key : params.keySet()) {
                Object object = params.get(key);
                // 这里考虑传入的参数是什么类型，不同类型使用的方法不同
                if (object instanceof Collection<?>) {
                    sqlQuery.setParameterList(key, (Collection<?>) object);
                } else if (object instanceof Object[]) {
                    sqlQuery.setParameterList(key, (Object[]) object);
                } else {
                    sqlQuery.setParameter(key, object);
                }

            }
        }
        return sqlQuery.setResultTransformer(Transformers.ALIAS_TO_ENTITY_MAP).list();
    }

    @Override
    public List<?> findBySql(String sql, Map<String, Object> params, PageHelper ph) {
        SQLQuery sqlQuery = getCurrentSession().createSQLQuery(sql);
        if (params != null && !params.isEmpty()) {
            for (String key : params.keySet()) {
                Object object = params.get(key);
                // 这里考虑传入的参数是什么类型，不同类型使用的方法不同
                if (object instanceof Collection<?>) {
                    sqlQuery.setParameterList(key, (Collection<?>) object);
                } else if (object instanceof Object[]) {
                    sqlQuery.setParameterList(key, (Object[]) object);
                } else {
                    sqlQuery.setParameter(key, object);
                }

            }
        }
        return sqlQuery.setFirstResult((ph.getPage() - 1) * ph.getRows()).setMaxResults(ph.getRows()).setResultTransformer(Transformers.ALIAS_TO_ENTITY_MAP).list();
    }

    @Override
    public BigInteger countBySql(String sql) {
        SQLQuery sqlQuery = getCurrentSession().createSQLQuery(sql);
        return (BigInteger) sqlQuery.uniqueResult();
    }

    @Override
    public BigInteger countBySql(String sql, Map<String, Object> params) {
        SQLQuery sqlQuery = getCurrentSession().createSQLQuery(sql);
        if (params != null && !params.isEmpty()) {
            for (String key : params.keySet()) {
                Object obj = params.get(key);
                // 这里考虑传入的参数是什么类型，不同类型使用的方法不同
                if (obj instanceof Collection<?>) {
                    sqlQuery.setParameterList(key, (Collection<?>) obj);
                } else if (obj instanceof Object[]) {
                    sqlQuery.setParameterList(key, (Object[]) obj);
                } else {
                    sqlQuery.setParameter(key, obj);
                }
            }
        }
        return new BigInteger(String.valueOf(sqlQuery.uniqueResult()));
    }

    @Override
    public int executeSql(String sql) {
        SQLQuery sqlQuery = getCurrentSession().createSQLQuery(sql);
        return sqlQuery.executeUpdate();
    }

    @Override
    public int executeSql(String sql, Map<String, Object> params) {
        SQLQuery sqlQuery = getCurrentSession().createSQLQuery(sql);
        if (params != null && !params.isEmpty()) {
            for (String key : params.keySet()) {
                Object obj = params.get(key);
                // 这里考虑传入的参数是什么类型，不同类型使用的方法不同
                if (obj instanceof Collection<?>) {
                    sqlQuery.setParameterList(key, (Collection<?>) obj);
                } else if (obj instanceof Object[]) {
                    sqlQuery.setParameterList(key, (Object[]) obj);
                } else {
                    sqlQuery.setParameter(key, obj);
                }
            }
        }
        return sqlQuery.executeUpdate();
    }

    @Override
    public void merge(T o) {
        if (o != null) {
            o.setCreateDateTime(LocalDateTime.now());
            o.setModifyDateTime(LocalDateTime.now());
            o.setDeleted(false);
            getCurrentSession().merge(o);
        }
        
        
    }

}
Hibernate-BaseDaoImpl

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