/*
* Copyright 2008 biaoping.yin
*
* 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.frameworkset.common.poolman;
import java.sql.SQLException;
import javax.transaction.RollbackException;
import com.frameworkset.orm.transaction.TransactionManager;
/**
*
*
* <p>Title: TemplateDBUtil.java</p>
*
* <p>Description: 执行数据库操作的模板类</p>
*
* <p>Copyright: Copyright (c) 2007</p>
*
* <p>
* bboss workgroup
* </p>
* <p>
* Copyright (c) 2007
* </p>
*
* @Date 2009-6-1 下午08:58:51
* @author biaoping.yin
* @version 1.0
*/
public class TemplateDBUtil extends PreparedDBUtil{
/**
* 执行JDBCTemplate的execute方法,整个方法的执行过程被包含在
* 一个事务中,如果有异常发生则事务将被回滚,如果整个事务被正常结束,则被提交
* 如果模板方法在执行的过程当中抛出异常,则该异常将被继续抛出给业务层
* @param template
* @throws Throwable
*/
public static void executeTemplate(JDBCTemplate template) throws Throwable
{
TransactionManager tm = new TransactionManager();
try
{
tm.begin();
template.execute();
tm.commit();
}
catch(SQLException e)
{
try {
tm.rollback();
} catch (RollbackException e1) {
}
throw e;
}
catch(Throwable e)
{
try {
tm.rollback();
} catch (RollbackException e1) {
}
throw e;
}
}
/**
* 执行JDBCValueTemplate的execute方法,该方法有返回值
* 整个方法的执行过程被包含在一个事务中,如果有异常发生则事务将被回滚,如果整个事务被正常结束,则被提交
* 并且将返回值返回给业务层。
* 如果模板方法在执行的过程当中抛出异常,则该异常将被继续抛出给业务层
*
* @param template
* @throws Throwable
* @return Object
*/
public static <T> T executeTemplate(JDBCValueTemplate<T> template) throws Throwable
{
TransactionManager tm = new TransactionManager();
T value = null;
try
{
tm.begin();
value = template.execute();
tm.commit();
return value;
}
catch(SQLException e)
{
try {
tm.rollback();
} catch (RollbackException e1) {
}
throw e;
}
catch(Throwable e)
{
try {
tm.rollback();
} catch (RollbackException e1) {
}
throw e;
}
}
}