2 * ============LICENSE_START====================================================
4 * ===========================================================================
5 * Copyright (c) 2018 AT&T Intellectual Property. All rights reserved.
6 * ===========================================================================
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 * ============LICENSE_END====================================================
22 package org.onap.aaf.misc.xgen;
25 public interface Cache<G extends XGen<G>> {
26 public void dynamic(G hgen, Code<G> code);
28 public static class Null<N extends XGen<N>> implements Cache<N> {
30 public void dynamic(N hgen, Code<N> code) {} // NO_OP, no matter what type
32 @SuppressWarnings("rawtypes")
33 private static Null<?> singleton = new Null();
34 public static Null<?> singleton() { return singleton;}