/*
 * 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.eigenbase.util;

/**
 * CancelFlag is used to post and check cancellation requests.
 */
public class CancelFlag {
  //~ Instance fields --------------------------------------------------------

  private boolean cancelRequested;

  //~ Methods ----------------------------------------------------------------

  /**
   * @return whether a cancellation has been requested
   */
  public boolean isCancelRequested() {
    return cancelRequested;
  }

  /**
   * Requests a cancellation.
   */
  public void requestCancel() {
    cancelRequested = true;
  }

  /**
   * Clears any pending cancellation request.
   */
  public void clearCancel() {
    cancelRequested = false;
  }
}

// End CancelFlag.java