001/////////////////////////////////////////////////////////////////////////////////////////////// 002// checkstyle: Checks Java source code and other text files for adherence to a set of rules. 003// Copyright (C) 2001-2024 the original author or authors. 004// 005// This library is free software; you can redistribute it and/or 006// modify it under the terms of the GNU Lesser General Public 007// License as published by the Free Software Foundation; either 008// version 2.1 of the License, or (at your option) any later version. 009// 010// This library is distributed in the hope that it will be useful, 011// but WITHOUT ANY WARRANTY; without even the implied warranty of 012// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 013// Lesser General Public License for more details. 014// 015// You should have received a copy of the GNU Lesser General Public 016// License along with this library; if not, write to the Free Software 017// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 018/////////////////////////////////////////////////////////////////////////////////////////////// 019 020package com.puppycrawl.tools.checkstyle; 021 022import java.lang.annotation.ElementType; 023import java.lang.annotation.Inherited; 024import java.lang.annotation.Retention; 025import java.lang.annotation.RetentionPolicy; 026import java.lang.annotation.Target; 027 028/** 029 * This annotation means that the check does not contain mutable state and 030 * may be safely used from others threads at the same time. 031 * The check does not contain mutable state, if it does not change any field values at the 032 * execution stage (but it still can set properties at the initialization stage). 033 * Checker guarantees that there will be exactly one check instance during the audit. 034 * This also means, that all files will be processed by the same check instance. 035 * 036 * @noinspection ClassIndependentOfModule 037 * @noinspectionreason ClassIndependentOfModule - we keep this annotation at top level by design 038 */ 039@Retention(RetentionPolicy.RUNTIME) 040@Target(ElementType.TYPE) 041@Inherited 042public @interface StatelessCheck { 043 044 // this annotation does not have properties 045 046}