abstractdatasource.java

spring的源代码

/*
 * Copyright 2002-2005 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 org.springframework.jdbc.datasource;

import java.io.PrintWriter;
import java.sql.SQLException;

import javax.sql.DataSource;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 * Abstract base class for Spring's DataSource implementations,
 * taking care of the "uninteresting" glue.
 *
 * @author Juergen Hoeller
 * @since 07.05.2003
 * @see DriverManagerDataSource
 */
public abstract class AbstractDataSource implements DataSource {

	protected final Log logger = LogFactory.getLog(getClass());

	/**
	 * Returns 0: means use default system timeout.
	 */
	public int getLoginTimeout() throws SQLException {
		return 0;
	}

	public void setLoginTimeout(int timeout) throws SQLException {
		throw new UnsupportedOperationException("setLoginTimeout");
	}

	/**
	 * LogWriter methods are unsupported.
	 */
	public PrintWriter getLogWriter() {
		throw new UnsupportedOperationException("getLogWriter");
	}

	/**
	 * LogWriter methods are unsupported.
	 */
	public void setLogWriter(PrintWriter pw) throws SQLException {
		throw new UnsupportedOperationException("setLogWriter");
	}

}