| /* |
| * Copyright (C) 2017 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.internal.util; |
| |
| import java.util.function.Supplier; |
| |
| /** |
| * Utilities specific to functional programming |
| */ |
| public class FunctionalUtils { |
| private FunctionalUtils() {} |
| |
| /** |
| * An equivalent of {@link Runnable} that allows throwing checked exceptions |
| * |
| * This can be used to specify a lambda argument without forcing all the checked exceptions |
| * to be handled within it |
| */ |
| @FunctionalInterface |
| public interface ThrowingRunnable { |
| void run() throws Exception; |
| } |
| |
| /** |
| * An equivalent of {@link Supplier} that allows throwing checked exceptions |
| * |
| * This can be used to specify a lambda argument without forcing all the checked exceptions |
| * to be handled within it |
| */ |
| @FunctionalInterface |
| public interface ThrowingSupplier<T> { |
| T get() throws Exception; |
| } |
| |
| /** |
| * An equivalent of {@link java.util.function.Consumer} that allows throwing checked exceptions |
| * |
| * This can be used to specify a lambda argument without forcing all the checked exceptions |
| * to be handled within it |
| */ |
| @FunctionalInterface |
| public interface ThrowingConsumer<T> { |
| void accept(T t) throws Exception; |
| } |
| } |