001/*
002 * Copyright 2012-2017 the original author or authors.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *      http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017package org.springframework.boot;
018
019/**
020 * Interface used to generate an 'exit code' from a running command line
021 * {@link SpringApplication}. Can be used on exceptions as well as directly on beans.
022 *
023 * @author Dave Syer
024 * @see SpringApplication#exit(org.springframework.context.ApplicationContext,
025 * ExitCodeGenerator...)
026 */
027@FunctionalInterface
028public interface ExitCodeGenerator {
029
030        /**
031         * Returns the exit code that should be returned from the application.
032         * @return the exit code.
033         */
034        int getExitCode();
035
036}