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/*
 * Copyright 2002-2007 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;

import javax.sql.DataSource;

/**
 * Extension of the javax.sql.DataSource interface, to be
 * implemented by special DataSources that return JDBC Connections
 * in an unwrapped fashion.
 *
 * 

Classes using this interface can query whether or not the Connection * should be closed after an operation. Spring's DataSourceUtils and * JdbcTemplate classes automatically perform such a check. * * @author Rod Johnson * @author Juergen Hoeller * @see SingleConnectionDataSource#shouldClose * @see DataSourceUtils#releaseConnection * @see org.springframework.jdbc.core.JdbcTemplate */ public interface SmartDataSource extends DataSource { /** * Should we close this Connection, obtained from this DataSource? *

Code that uses Connections from a SmartDataSource should always * perform a check via this method before invoking close(). *

Note that the JdbcTemplate class in the 'jdbc.core' package takes care of * releasing JDBC Connections, freeing application code of this responsibility. * @param con the Connection to check * @return whether the given Connection should be closed * @see java.sql.Connection#close() */ boolean shouldClose(Connection con); }





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