daomanagerfactory.java

简单的Jdon实现

/*
 * Copyright 2003-2005 the original author or authors.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * 
 */
package com.jdon.framework.samples.jpetstore.persistence.dao;

import java.io.Reader;

import com.ibatis.common.resources.Resources;
import com.ibatis.dao.client.DaoManager;
import com.ibatis.dao.client.DaoManagerBuilder;
import com.jdon.util.Debug;

/**
 * @author <a href="mailto:[e-mail]">banq</a>
 *
 */
public class DaoManagerFactory  {
    private final static String module = DaoManagerFactory.class.getName();
    private DaoManager daoManager;
   
    /**
     * @param daoResource
     */
    public DaoManagerFactory(String daoResource) {
        create(daoResource);
    }
    /* (non-Javadoc)
     * @see org.picocontainer.Startable#start()
     */
    public void create(String daoResource) {
        try {
            //String resource = "com/ibatis/jpetstore/persistence/dao.xml";
            Debug.logVerbose("read resource : " + daoResource, module);
            
            
            Reader reader = Resources.getResourceAsReader(daoResource);
            daoManager = DaoManagerBuilder.buildDaoManager(reader);
         
         
          } catch (Exception e) {
            throw new RuntimeException("Could not initialize DaoConfig.  Cause: " + e);
          }                

    }
    
    public DaoManager getDaomanager() {
        if (daoManager == null )
            Debug.logVerbose("daoManager is null : ", module);
        return daoManager;
    }        


}