/*
 * 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
 * 
 *   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.apache.tuscany.das.rdb;

import java.io.InputStream;
import java.sql.Connection;

import org.apache.tuscany.das.rdb.config.Config;

/**
 * A DASFactory produces {@link DAS} instances.
 */
public interface DASFactory {

    /**
     * Creates a DAS based on the provided config file stream
     * 
     * @param configStream
     *            A stream over a DAS config file
     * @return returns a DAS instance
     */
    DAS createDAS(InputStream configStream);
    
    /**
     * Creates a DAS based on the provide config file stream and connection
     * @param configStream
     * @param connection
     * @return
     */
    DAS createDAS(InputStream configStream, Connection connection);
    
    /**
     * Creates a DAS based on the provided config
     * 
     * @param config
     *            A DAS config object
     * @return returns a DAS instance
     */
    DAS createDAS(Config config);

    /**
     * Creates a DAS based on the provided config and connection
     * @param config
     * @param connection
     * @return
     */
    DAS createDAS(Config config, Connection connection);

    /**
     * Creates a DAS based on the provided connection
     * @param connection
     * @return
     */
    DAS createDAS(Connection connection);
    

}