querymanagerimpl.java

来自「struts_spring_hibernate开发实例」· Java 代码 · 共 77 行

/*
 *  2004/5/14 created
 *
 */
package jaoso.framework.dao.hibernate;

import jaoso.framework.dao.BaseDAO;
import jaoso.framework.dao.MyQuery;
import jaoso.framework.dao.QueryManager;

import jaoso.framework.exception.DAOException;

import java.io.Serializable;

/**
 * @author edgeloner [e-mail]
 * 
 *  
 */
public class QueryManagerImpl implements QueryManager {
	/**
	 * DOCUMENT ME!
	 */
	private BaseDAO baseDAO;

	/**
	 * DOCUMENT ME!
	 * 
	 * @param dao
	 *            DOCUMENT ME!
	 */
	public final void setBaseDAO(final BaseDAO dao) {
		baseDAO = dao;
	}

	/**
	 * find object from database
	 * 
	 * @param myquery
	 *            myquery
	 * @return object array
	 * @throws DAOException
	 *             any error
	 */
	public final Object[] find(final MyQuery myquery) throws DAOException {
		return baseDAO.findEntity(myquery);
	}

	/**
	 * find object from database
	 * 
	 * @param myquery
	 *            myquery
	 * @return object array
	 * @throws DAOException
	 *             any error
	 */
	public final Object[] find(final String myquery) throws DAOException {
		return baseDAO.findEntity(myquery);
	}

	/**
	 * find object from database
	 * 
	 * @param obj
	 *            object
	 * @param id
	 *            primary key
	 * @return object
	 * @throws DAOException
	 *             any error
	 */
	public final Object findByPK(final Object obj, final Serializable id)
			throws DAOException {
		return baseDAO.loadEntity(obj, id);
	}
}