/*
 * 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.ambari.server.state.repository;

import java.util.HashSet;
import java.util.Set;

import javax.xml.bind.annotation.XmlAttribute;
import javax.xml.bind.annotation.XmlElement;

/**
 * An available service can be upgraded.  This is mostly a marker class identifying the
 * {@link ManifestService} with a set of optional components to upgrade.
 */
public class AvailableServiceReference {

  /**
   * The reference id back to the service in the repository.
   */
  @XmlAttribute(name="idref")
  public String serviceIdReference;

  /**
   * Set of components to update.
   */
  @XmlElement(name="component")
  public Set<String> components = new HashSet<>();

}
