content: package org.apache.archiva.event;
  /*
   * 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.Map;
  
  /**
   * Context information about a specific event.
   * This is used to provide specific information about the event context by using the generic
   * event interface.
   * Some event handler may need information about the underlying event but have no access to the
   * API classes that represent the event.
   *
   * Context information is always string based and should not depend on external classes apart from JDK classes.
   *
   * @author Martin Schreier <martin_s@apache.org>
   */
  public interface EventContext
  {
      /**
       * Returns the id which is also used as prefix for keys in the repository data map.
       * @return the identifier of this context
       */
      String getId();
  
      /**
       * Returns the context data as map of strings. Each entry key is prefixed with
       * the unique prefix of this context.
       *
       * @return the map of key value pairs stored in this context
       */
      Map<String,String> getData();
  }
  