connectionproxy.java

一个关于Spring框架的示例应用程序,简单使用,可以参考.

/*
 * Copyright 2002-2004 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 org.springframework.jdbc.datasource;

import java.sql.Connection;

/**
 * Subinterface of Connection to be implemented by connection proxies.
 * Allows access to the target connection.
 *
 * <p>Can be checked for when needing to cast to a native Connection
 * like OracleConnection. Spring's NativeJdbcExtractorAdapter automatically
 * detects such proxies before delegating to the actual unwrapping for a
 * specific connection pool.
 *
 * @author Juergen Hoeller
 * @since 1.1
 * @see org.springframework.jdbc.support.nativejdbc.NativeJdbcExtractorAdapter#getNativeConnection
 */
public interface ConnectionProxy extends Connection {

	/**
	 * Return the target connection of this proxy.
	 * <p>This will typically either be the native JDBC Connection
	 * or a wrapper from a connection pool.
	 */
	Connection getTargetConnection();

}