?? easydbodao.java
字號:
package com.easyjf.web.tools;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import com.easyjf.dbo.EasyJDB;
/**
*
* <p>Title: IDAO的EasyDBO實現</p>
* <p>Description:通過ORM系統中間件EasyDBO實現添刪改查等數據庫操作 </p>
* <p>Copyright: Copyright (c) 2006</p>
* <p>Company: EasyJF開源團隊</p>
* @author 大峽
* @version 0.1
*/
public class EasyDBODAO implements IDAO {
private static final EasyDBODAO singleton = new EasyDBODAO();
private EasyJDB db = EasyJDB.getInstance();
public static EasyDBODAO getInstance() {
return singleton;
}
public boolean save(Object obj){
// TODO Auto-generated method stub
return db.add(obj);
}
public boolean update(Object obj) {
// TODO Auto-generated method stub
return db.update(obj);
}
public boolean del(Object obj) {
// TODO Auto-generated method stub
return db.del(obj);
}
public Object get(Class clz, Serializable id) {
// TODO Auto-generated method stub
return db.get(clz, (Object) id);
}
public Object getBy(Class clz, String fieldName, Serializable value) {
// TODO Auto-generated method stub
Collection paras = new ArrayList();
paras.add(value);
return db.read(clz, fieldName + "=?", paras);
}
public List query(Class clz, String scope) {
// TODO Auto-generated method stub
return db.query(clz, scope);
}
public List query(Class clz, String scope, Collection paras) {
// TODO Auto-generated method stub
return db.query(clz, scope, paras);
}
public List query(Class clz, String scope, Collection paras, int begin,
int max) {
// TODO Auto-generated method stub
return db.query(clz, scope, paras, begin, max);
}
public int execute(String sql, Collection paras) {
// TODO Auto-generated method stub
int ret=-1;
try{
ret=db.execute(sql,paras);
}
catch(Exception e)
{
//這里添加錯誤處理代碼
e.printStackTrace();
}
return ret;
}
public int execute(String sql) {
return execute(sql,null);
}
public Object uniqueResult(String sql, Collection paras) {
// TODO Auto-generated method stub
return db.uniqueResult(sql,paras);
}
public Object uniqueResult(String sql) {
// TODO Auto-generated method stub
return db.uniqueResult(sql);
}
}
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