/*
 * 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.accumulo.core.spi.compaction;

/**
 * The directions of a {@link CompactionDispatcher}
 *
 * @since 2.1.0
 * @see org.apache.accumulo.core.spi.compaction
 */
public interface CompactionDirectives {

  /**
   * @return The service where a compaction should run.
   */
  CompactionServiceId getService();

  /**
   * Required for CompactionDirectives
   *
   * @since 2.1.0
   */
  interface ServiceBuilder {
    Builder toService(CompactionServiceId service);

    Builder toService(String compactionServiceId);
  }

  /**
   * @since 2.1.0
   */
  interface Builder {
    CompactionDirectives build();
  }

  static ServiceBuilder builder() {
    return new CompactionDirectivesBuilder();
  }
}