Re: [Springframework-developer] Hibernate Dao implementation (idea)

[snpe <sn...@sn...>]

I have this error (methods with argument permanent object, not permanent class) : load, find work, but save, delete no)
Next version is tested and work all methods
I declare CatDaoImpl like  :
bean id="catDao" class="org.springframework.orm.hibernate.support.BaseHibernateDao">
 		<property name="sessionFactory"><ref local="sessionFactory"/>
 		</property>
 		<property name="clazz">
 			<value>eg.Cat</value>
 		</property>
 </bean>

and use like
BaseHibernateDao catDao = (BaseHibernateDao) ctx.getBean("catDao");
List cats = (List) catDao.loadAll();
Long id = new Long(3);
Cat cat = (Cat) catDao.load(id);
etc
We can change Dao on the fly (baseDao haven't to have clazz property) :
BaseHibernateDao baseDao = (BaseHibernateDao) ctx.getBean("baseDao");
baseDao =  baseDao.setClazz(Dog.class);
List dogs = (List) baseDao.loadAll();
...

I can extends BaseHibernateDao and add new business methods (like Example Criteria)

It is possible exclude all named query method in helper class - it don't depends from permanent class

Regards

Code :


package org.springframework.orm.hibernate.support;

import java.io.Serializable;
import java.util.Collection;
import java.util.List;

import net.sf.hibernate.LockMode;
import net.sf.hibernate.type.Type;

import org.springframework.dao.DataAccessException;
import org.springframework.orm.hibernate.HibernateCallback;


public class BaseHibernateDao extends HibernateDaoSupport  implements IBaseHibernateDao {
	
	private Class clazz;
	
	public void delete(Object obj,LockMode lockMode)
			throws DataAccessException {
		getHibernateTemplate().delete(obj,lockMode);
	}
	public void delete(Object obj) throws DataAccessException {
		getHibernateTemplate().delete(obj);
	}
	public void deleteAll(Collection entities) throws DataAccessException {
		getHibernateTemplate().deleteAll(entities);
	}
	
	public void evict(Object obj) throws DataAccessException {
		getHibernateTemplate().evict(obj);
	}
	public Object execute(HibernateCallback action) throws DataAccessException {
		return getHibernateTemplate().execute(action);
	}
	
	public List executeFind(HibernateCallback action)
			throws DataAccessException {
		return getHibernateTemplate().executeFind(action);
	}
	
	public List find(String queryString, Type type)
			throws DataAccessException {
		return getHibernateTemplate().find(queryString,clazz,type);
	}
	
	public List find(String queryString)
			throws DataAccessException {
		return getHibernateTemplate().find(queryString,clazz);
	}
	
	public List find(String queryString, Object[] values, Type[] types)
			throws DataAccessException {
		return getHibernateTemplate().find(queryString,values,types);
	}
	
	public List find(String queryString, Object[] values)
			throws DataAccessException {
		return getHibernateTemplate().find(queryString,values);
	}
	
	public List findByNamedQuery(String queryName, Object value, Type type)
			throws DataAccessException {
		return getHibernateTemplate().findByNamedQuery(queryName,value,type);
	}
	public List findByNamedQuery(String queryName, Object value)
			throws DataAccessException {
		return getHibernateTemplate().findByNamedQuery(queryName,value);
	}
	
	public List findByNamedQuery(String queryName, Object[] values, Type[] types)
			throws DataAccessException {
		return getHibernateTemplate().findByNamedQuery(queryName,values,types);
	}
	
	public List findByNamedQuery(String queryName, Object[] values)
			throws DataAccessException {
		return getHibernateTemplate().findByNamedQuery(queryName,values);
	}
	
	public List findByNamedQuery(String queryName, String paramName,
			Object value, Type type) throws DataAccessException {
		return getHibernateTemplate().findByNamedQuery(queryName,paramName,value,type);
	}
	
	public List findByNamedQuery(String queryName, String paramName,
			Object value) throws DataAccessException {
		return getHibernateTemplate().findByNamedQuery(queryName,paramName, value);
	}
	
	public List findByNamedQuery(String queryName, String[] paramNames,
			Object[] values, Type[] types) throws DataAccessException {
		return getHibernateTemplate().findByNamedQuery(queryName,paramNames, values,types);
	}
	
	public List findByNamedQuery(String queryName, String[] paramNames,
			Object[] values) throws DataAccessException {
		return getHibernateTemplate().findByNamedQuery(queryName,paramNames, values);
	}
	
	public List findByNamedQuery(String queryName) throws DataAccessException {
		return getHibernateTemplate().findByNamedQuery(queryName);
	}
	
	public List findByNamedQueryAndValueBean(String queryName, Object valueBean)
			throws DataAccessException {
		return getHibernateTemplate().findByNamedQueryAndValueBean(queryName,valueBean);
	}
	
	public List findByValueBean(String queryString, Object valueBean)
			throws DataAccessException {
		return getHibernateTemplate().findByValueBean(queryString,valueBean);
	}
	
	public Object get(Serializable id, LockMode lockMode)
			throws DataAccessException {
		return getHibernateTemplate().get(clazz,id,lockMode);
	}
	
	public Object get( Serializable id)
			throws DataAccessException {
		return getHibernateTemplate().get(clazz,id);
	}
	
	public Object load( Serializable id, LockMode lockMode)
			throws DataAccessException {
		return getHibernateTemplate().load(clazz,id,lockMode);
	}
	
	public Object load(Serializable id)
			throws DataAccessException {
		return getHibernateTemplate().load(clazz,id);
	}
	
	public List loadAll() throws DataAccessException {
		return getHibernateTemplate().loadAll(clazz);
	}
	
	public void lock(Object obj,LockMode lockMode)
			throws DataAccessException {
		getHibernateTemplate().lock(obj,lockMode);
	}
	
	public void save(Object obj,Serializable id) throws DataAccessException {
		getHibernateTemplate().save(obj,id);
	}
	
	public Serializable save(Object obj) throws DataAccessException {
		return getHibernateTemplate().save(obj);
	}
	
	public void saveOrUpdate(Object obj) throws DataAccessException {
		 getHibernateTemplate().saveOrUpdate(obj);
	}
	
	public Object saveOrUpdateCopy(Object obj) throws DataAccessException {
		return getHibernateTemplate().saveOrUpdateCopy(obj);
	}
	
	public void update(Object obj,LockMode lockMode)
			throws DataAccessException {
		getHibernateTemplate().update(obj,lockMode);
	}
	
	public void update(Object obj) throws DataAccessException {
		getHibernateTemplate().update(obj);
	}
	
	public BaseHibernateDao(Class clazz) {
		super();
		this.clazz = clazz;
	}
	
	public BaseHibernateDao () {
		super();
	}
	
	public Class getClazz() {
		return clazz;
	}
	
	public void setClazz(Class clazz) {
		this.clazz = clazz;
	}
}

/*
 * Created on May 6, 2004
 *
 */
package org.springframework.orm.hibernate.support;
import java.io.Serializable;
import java.util.Collection;
import java.util.List;
import net.sf.hibernate.LockMode;
import net.sf.hibernate.type.Type;
import org.springframework.dao.DataAccessException;
import org.springframework.orm.hibernate.HibernateCallback;
/**
 * @author Haris Peco
 *
 * Snpe Informacioni sistemi
 */
public interface IBaseHibernateDao {
	public abstract void delete(Object obj,LockMode lockMode) throws DataAccessException;
	public abstract void delete(Object Obj) throws DataAccessException;
	public abstract void deleteAll(Collection entities)
			throws DataAccessException;
	public abstract void evict(Object obj) throws DataAccessException;
	public abstract Object execute(HibernateCallback action)
			throws DataAccessException;
	public abstract List executeFind(HibernateCallback action)
			throws DataAccessException;
	public abstract List find(String queryString, Type type)
			throws DataAccessException;
	public abstract List find(String queryString) throws DataAccessException;
	public abstract List find(String queryString, Object[] values, Type[] types)
			throws DataAccessException;
	public abstract List find(String queryString, Object[] values)
			throws DataAccessException;
	public abstract List findByNamedQuery(String queryName, Object value,
			Type type) throws DataAccessException;
	public abstract List findByNamedQuery(String queryName, Object value)
			throws DataAccessException;
	public abstract List findByNamedQuery(String queryName, Object[] values,
			Type[] types) throws DataAccessException;
	public abstract List findByNamedQuery(String queryName, Object[] values)
			throws DataAccessException;
	public abstract List findByNamedQuery(String queryName, String paramName,
			Object value, Type type) throws DataAccessException;
	public abstract List findByNamedQuery(String queryName, String paramName,
			Object value) throws DataAccessException;
	public abstract List findByNamedQuery(String queryName,
			String[] paramNames, Object[] values, Type[] types)
			throws DataAccessException;
	public abstract List findByNamedQuery(String queryName,
			String[] paramNames, Object[] values) throws DataAccessException;
	public abstract List findByNamedQuery(String queryName)
			throws DataAccessException;
	public abstract List findByNamedQueryAndValueBean(String queryName,
			Object valueBean) throws DataAccessException;
	public abstract List findByValueBean(String queryString, Object valueBean)
			throws DataAccessException;
	public abstract Object get(Serializable id, LockMode lockMode)
			throws DataAccessException;
	public abstract Object get(Serializable id) throws DataAccessException;
	public abstract Object load(Serializable id, LockMode lockMode)
			throws DataAccessException;
	public abstract Object load(Serializable id) throws DataAccessException;
	public abstract List loadAll() throws DataAccessException;
	public abstract void lock(Object obj,LockMode lockMode) throws DataAccessException;
	public abstract void save(Object obj,Serializable id) throws DataAccessException;
	public abstract Serializable save(Object obj) throws DataAccessException;
	public abstract void saveOrUpdate(Object obj) throws DataAccessException;
	public abstract Object saveOrUpdateCopy(Object obj) throws DataAccessException;
	public abstract void update(Object obj,LockMode lockMode) throws DataAccessException;
	public abstract void update(Object obj) throws DataAccessException;
	public abstract Class getClazz();
	public abstract void setClazz(Class clazz);
}