http://jdbi.org/: jdbi is designed to provide convenient tabular data access in Java(tm). It uses the Java collections framework for query results, provides a convenient means of externalizing sql statements, and provides named parameter support for any database being used. 
/*
 * 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.jdbi.v3.core;

import java.sql.Connection;
import java.sql.SQLException;


Supplies Connection instances to a created Handle and allows custom close handling. 
/**
 * Supplies {@link Connection} instances to a created {@link Handle} and allows
 * custom close handling.
 */
@FunctionalInterface
public interface ConnectionFactory {
    
Open a connection.

Throws:
Returns:a Connection
/**
     * Open a connection.
     * @return a Connection
     * @throws SQLException if anything goes wrong
     */
    Connection openConnection() throws SQLException;

    
Close a connection.

Params:
  • conn – the connection to close
Throws:
/**
     * Close a connection.
     * @param conn the connection to close
     * @throws SQLException if anything goes wrong
     */
    default void closeConnection(Connection conn) throws SQLException {
        conn.close();
    }
}