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}