1 /* 2 * Copyright (C) 2017 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.tv.testing; 18 19 import javax.inject.Provider; 20 21 /** A Provider that always returns the same instance. */ 22 public class SingletonProvider<T> implements Provider<T> { 23 private final T t; 24 SingletonProvider(T t)25 private SingletonProvider(T t) { 26 this.t = t; 27 } 28 29 @Override get()30 public T get() { 31 return t; 32 } 33 create(T t)34 public static <S, T extends S> Provider<S> create(T t) { 35 return new SingletonProvider<S>(t); 36 } 37 } 38