com.jn.sqlhelper.datasource.SmartDataSource Maven / Gradle / Ivy
/*
* Copyright 2020 the original author or authors.
*
* Licensed under the LGPL, Version 3.0 (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.gnu.org/licenses/lgpl-3.0.html
*
* 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.jn.sqlhelper.datasource;
import javax.sql.DataSource;
import java.sql.Connection;
/**
* Extension of the {@code 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.
* @since 3.4.0
**/
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 {@code 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);
}