ProgressEventNotifier.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.cassandra.utils.progress;

/**
 * Interface for {@link ProgressEvent} publisher.
 */
public interface ProgressEventNotifier
{
    /**
     * Register progress listener to this publisher.
     *
     * @param listener listener to register.
     */
    void addProgressListener(ProgressListener listener);

    /**
     * Remove progress listener from this publisher.
     *
     * @param listener listener to remove
     */
    void removeProgressListener(ProgressListener listener);
}