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/*
* Copyright (C) 2012 The CyanogenMod Project
*
* 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 com.cyanogenmod.filemanager.commands;
/**
* An interface that defines a class as executable in an asynchronous way.
*/
public interface AsyncResultExecutable extends Executable {
/**
* An interface that let to request the ending of the current
* execution of an {@link Executable}.
*/
public interface OnEndListener {
/**
* Invoked when a request of ending of the current execution
*
* @param signal The signal to send
* @return boolean If the execution was ended
*/
boolean onSendSignal(SIGNAL signal);
/**
* Invoked when a request of ending of the current execution
*
* @return boolean If the execution was ended
*/
boolean onEnd();
}
/**
* An interface that let to request the cancellation of the current
* execution of an {@link Executable}.
*/
public interface OnCancelListener {
/**
* Invoked when a request of cancellation of the current execution
*
* @return boolean If the execution was cancelled
*/
boolean onCancel();
}
/**
* Method that return if the command is cancelled.
*
* @return boolean Indicates if the command is cancelled
*/
boolean isCancelled();
/**
* Method that cancels the execution of the program.
*
* @return boolean If the program was cancelled
*/
boolean cancel();
/**
* Method that ends the execution of the program.
*
* @return boolean If the program was ended
*/
boolean end();
/**
* Method that sets the end listener.
*
* @param onEndListener The end listener
*/
void setOnEndListener(OnEndListener onEndListener);
/**
* Method that sets the cancel listener.
*
* @param onCancelListener The cancel listener
*/
void setOnCancelListener(OnCancelListener onCancelListener);
/**
* Method that returns if program supports cancellation.
*
* @return boolean If the program supports cancellation
*/
boolean isCancellable();
/**
* Method that returns the listener to communicate result in
* an asynchronous way.
*
* @return AsyncResultListener The listener
*/
AsyncResultListener getAsyncResultListener();
}
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