1 /* 2 * Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 package com.apple.jobjc; 26 27 import javax.tools.annotation.GenerateNativeHeader; 28 29 /* No native methods here, but the constants are needed in the supporting JNI code */ 30 @GenerateNativeHeader 31 public abstract class NativeObjectLifecycleManager { 32 private static native void retainNativeObject(final long ptr); 33 private static native void releaseNativeObject(final long ptr); 34 private static native void freeNativeObject(final long ptr); 35 36 abstract void begin(final long ptr); 37 abstract void end(final long ptr); 38 boolean shouldPreRetain() { return false; } 39 40 /* No native methods here, but the constants are needed in the supporting JNI code */ 41 @GenerateNativeHeader 42 public static class CFRetainRelease extends NativeObjectLifecycleManager { 43 public static final NativeObjectLifecycleManager INST = new CFRetainRelease(); 44 @Override void begin(final long ptr) { retainNativeObject(ptr); } 45 @Override void end(final long ptr) { releaseNativeObject(ptr); } 46 @Override boolean shouldPreRetain() { return true; } 47 } 48 49 /* No native methods here, but the constants are needed in the supporting JNI code */ 50 @GenerateNativeHeader 51 public static class Free extends NativeObjectLifecycleManager { 52 public static final NativeObjectLifecycleManager INST = new Free(); 53 @Override void begin(final long ptr) { } 54 @Override void end(final long ptr) { freeNativeObject(ptr); } 55 } 56 57 /* No native methods here, but the constants are needed in the supporting JNI code */ 58 @GenerateNativeHeader 59 public static class Nothing extends NativeObjectLifecycleManager { 60 public static final NativeObjectLifecycleManager INST = new Nothing(); 61 @Override void begin(final long ptr) { } 62 @Override void end(final long ptr) { } 63 } 64 }