/*
* Copyright 2015 the original author or authors.
*
* Licensed 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.gradle.internal.filewatch;
import org.gradle.api.Action;
public interface FileWatcherFactory {
/**
* Starts watching for changes to the given subset of the file system.
* <p>
* Listeners should not rely on the events being an entirely accurate journal of file system events.
* Implementations may emit duplicate events and chronological ordering is not guaranteed.
* <p>
* It can be assumed that all changes to the file system subset that occur <b>after</b> the return of this method will produce events.
* <p>
* No events will be emitted after that watcher has been stopped.
*
* @param onError what to do if an error occurs while watching
* @param listener the receiver of events
* @return a, stoppable, handle to the watcher
*/
FileWatcher watch(Action<? super Throwable> onError, FileWatcherListener listener);
}