| /* |
| * Copyright (C) 2014 The Android Open Source 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.android.camera.async; |
| |
| /** |
| * An output stream of objects which can be closed from either the producer or |
| * the consumer. |
| */ |
| public interface BufferQueueController<T> extends Updatable<T>, SafeCloseable { |
| /** |
| * Adds the given element to the stream. Streams must support calling this |
| * even after closed. |
| * |
| * @param element The element to add. |
| */ |
| @Override |
| public void update(T element); |
| |
| /** |
| * Closes the stream. Implementations must tolerate multiple calls to close. |
| */ |
| @Override |
| public void close(); |
| |
| /** |
| * @return Whether the stream is closed. |
| */ |
| public boolean isClosed(); |
| } |