// Copyright (C) 2010 Google Inc.
//
// 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 com.google.enterprise.connector.scheduler;

/**
 * Interface for a factory that creates {@link LoadManager} instances
 * dedicated to the named {@code dataSource}.
 */
public interface LoadManagerFactory {
  /**
   * Create a new {@link LoadManager} instance appropriate for the supplied
   * {@code dataSource}.
   *
   * @param dataSource a data source for a {@code Feed}, typically the name
   *        of a connector instance.
   * @return a {@link LoadManager} or {@code null} if no LoadManager
   *         is assigned to the dataSource.
   */
  public LoadManager newLoadManager(String dataSource);
}