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   *   Licensed to the Apache Software Foundation (ASF) under one
   *  or more contributor license agreements.  See the NOTICE file
   *  distributed with this work for additional information
   *  regarding copyright ownership.  The ASF licenses this file
   *  to you 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
   *
   *    https://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
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  package org.apache.cayenne.test.jdbc;
  
  import java.sql.Connection;
  import java.sql.PreparedStatement;
  import java.sql.ResultSet;
  import java.sql.SQLException;
  
  abstract class ResultSetTemplate<T> {
  
  	DBHelper parent;
  
  	public ResultSetTemplate(DBHelper parent) {
  		this.parent = parent;
  	}
  
  	abstract T readResultSet(ResultSet rs, String sql) throws SQLException;
  
  	T execute(String sql) throws SQLException {
  		UtilityLogger.log(sql);
  
  		try (Connection c = parent.getConnection();) {
  
  			try (PreparedStatement st = c.prepareStatement(sql);) {
  
  				try (ResultSet rs = st.executeQuery();) {
  
  					return readResultSet(rs, sql);
  				}
  			}
  		}
  	}
  }
  