1 /* 2 * Copyright 2017, OpenCensus Authors 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 io.opencensus.common; 18 19 import java.io.Closeable; 20 21 /** 22 * An {@link Closeable} which cannot throw a checked exception. 23 * 24 * <p>This is useful because such a reversion otherwise requires the caller to catch the 25 * (impossible) Exception in the try-with-resources. 26 * 27 * <p>Example of usage: 28 * 29 * <pre> 30 * try (NonThrowingAutoCloseable ctx = tryEnter()) { 31 * ... 32 * } 33 * </pre> 34 * 35 * @deprecated {@link Scope} is a better match for operations involving the current context. 36 * @since 0.5 37 */ 38 @Deprecated 39 public interface NonThrowingCloseable extends Closeable { 40 @Override close()41 void close(); 42 } 43