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.
   */
  package org.apache.beam.runners.core.triggers;
  
  /**
   * A mutable set which tracks whether any particular {@link ExecutableTriggerStateMachine} is
   * finished.
   */
  public interface FinishedTriggers {
    /** Returns {@code true} if the trigger is finished. */
    boolean isFinished(ExecutableTriggerStateMachine trigger);
  
    /** Sets the fact that the trigger is finished. */
    void setFinished(ExecutableTriggerStateMachine trigger, boolean value);
  
    /** Sets the trigger and all of its subtriggers to unfinished. */
    void clearRecursively(ExecutableTriggerStateMachine trigger);
  
    /** Create an independent copy of this mutable {@link FinishedTriggers}. */
    FinishedTriggers copy();
  }
  