content: package org.apache.archiva.repository.content;
  
  /*
   * 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.
   */
  
  import java.util.List;
  
  /**
   * Each artifact is attached to exactly one version.
   * <p>
   * Implementations must provide proper hash and equals methods.
   *
   * @author Martin Stockhammer <martin_s@apache.org>
   */
  public interface Version extends ContentItem
  {
  
      /**
       * Returns the version string.
       *
       * @return the version string
       */
      String getId( );
  
      /**
       * Returns the version segments. E.g. for 1.3.4 it will return ["1","3"."4"]
       *
       * @return
       */
      List<String> getVersionSegments( );
  
      /**
       * Returns the namespace this version is attached to
       * @return the namespace instance
       */
      Namespace getNamespace();
  
      /**
       * Returns the project this version is attached to.
       *
       * @return the project instance. Will never return <code>null</code>
       */
      Project getProject( );
  
  }
  