| /* |
| * Copyright (c) 2008-2020 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * 3. Neither the name of the copyright holder nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
| * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| * POSSIBILITY OF SUCH DAMAGE. |
| * |
| * -- |
| * |
| * Simple wrapper classes to hold Java Objects in JNI global references. |
| * |
| * This is used to pass Java objects across thread boundries, often through |
| * -performSelectorOnMainThread invocations. This wrapper properly creates a |
| * new global ref, and clears it on -dealloc or -finalize, attaching to the |
| * current VM, attaching the current thread if necessary, releasing the global |
| * ref, and detaching the thread from the VM if it attached it. |
| * |
| * Destruction of this wrapper is expensive if the jobject has not been |
| * pre-cleared, because it must re-attach to the JVM. |
| * |
| * The JNFWeakJObjectWrapper manages a weak global reference which may become |
| * invalid if the JVM garbage collects the original object. |
| */ |
| |
| #import <Foundation/Foundation.h> |
| #import <JavaNativeFoundation/JNFJNI.h> |
| |
| __BEGIN_DECLS |
| |
| JNF_EXPORT |
| @interface JNFJObjectWrapper : NSObject |
| |
| + (JNFJObjectWrapper *) wrapperWithJObject:(jobject)jObjectIn withEnv:(JNIEnv *)env; |
| - (id) initWithJObject:(jobject)jObjectIn withEnv:(JNIEnv *)env; |
| - (void) setJObject:(jobject)jObjectIn withEnv:(JNIEnv *)env; // clears any pre-existing global-ref |
| - (jobject) jObjectWithEnv:(JNIEnv *)env; // returns a new local-ref, must be released with DeleteLocalRef |
| |
| @property (readonly, nonatomic, assign) jobject jObject; |
| |
| @end |
| |
| |
| JNF_EXPORT |
| @interface JNFWeakJObjectWrapper : JNFJObjectWrapper { } |
| |
| + (JNFWeakJObjectWrapper *) wrapperWithJObject:(jobject)jObjectIn withEnv:(JNIEnv *)env; |
| |
| @end |
| |
| __END_DECLS |
