twill-api/src/main/java/org/apache/twill/api/EventHandlerContext.java

/*
 * 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.twill.api;

/**
 * Represents runtime context for {@link EventHandler}.
 */
public interface EventHandlerContext {

  /**
   * @return Name of the {@link TwillApplication} containing the {@link EventHandler}
   */
  String getApplicationName();

  /**
   * @return the unique ID of the current run of the {@link TwillApplication} containing the {@link EventHandler}
   */
  RunId getRunId();

  /**
   * @return {@link EventHandlerSpecification} of the {@link EventHandler}
   */
  EventHandlerSpecification getSpecification();
}