/*
* Copyright (c) 2015-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
package com.facebook.common.memory;
/**
* Implementation of {@link MemoryTrimmableRegistry} that does not do anything.
*/
public class NoOpMemoryTrimmableRegistry implements MemoryTrimmableRegistry {
private static NoOpMemoryTrimmableRegistry sInstance = null;
private NoOpMemoryTrimmableRegistry() {
}
public static synchronized NoOpMemoryTrimmableRegistry getInstance() {
if (sInstance == null) {
sInstance = new NoOpMemoryTrimmableRegistry();
}
return sInstance;
}
/** Register an object. */
public void registerMemoryTrimmable(MemoryTrimmable trimmable) {
}
/** Unregister an object. */
public void unregisterMemoryTrimmable(MemoryTrimmable trimmable) {
}
}