net.hasor.db.datasource.DataSourceManager Maven / Gradle / Ivy
/*
* Copyright 2002-2006 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 net.hasor.db.datasource;
import javax.sql.DataSource;
import java.io.Closeable;
import java.lang.reflect.Proxy;
import java.sql.Connection;
/**
*
* @version : 2013-10-30
* @author 赵永春 ([email protected])
*/
public class DataSourceManager {
/**申请连接*/
public static Connection newConnection(DataSource dataSource) {
ConnectionHolder holder = newConnectionHolder(dataSource);
return newProxyConnection(holder);
}
/**申请{@link ConnectionHolder}*/
protected static ConnectionHolder newConnectionHolder(DataSource dataSource) {
return new ConnectionHolder(dataSource);
}
/**获取与本地线程绑定的数据库连接，JDBC 框架会维护这个连接的事务。开发者不必关心该连接的事务管理，以及资源释放操作。*/
protected static ConnectionProxy newProxyConnection(ConnectionHolder holder) {
CloseSuppressingInvocationHandler handler = new CloseSuppressingInvocationHandler(holder);
return (ConnectionProxy) Proxy.newProxyInstance(ConnectionProxy.class.getClassLoader(), new Class[] { ConnectionProxy.class, Closeable.class }, handler);
}
}