1 /* 2 * Copyright (C) 2014 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.camera.one.v2.sharedimagereader.ticketpool; 18 19 import com.android.camera.async.SafeCloseable; 20 21 /** 22 * Tickets store the logical-ability to hold on to an instance of a managed, 23 * finite resource (e.g. hardware-backed media images). 24 * <p> 25 * They may be released by calling {@link #close}. 26 * <p> 27 */ 28 public interface Ticket extends SafeCloseable { 29 /** 30 * Releases the ticket. Implementations must be idempotent. 31 */ 32 @Override close()33 public void close(); 34 } 35