1 ///////////////////////////////////////////////////////////////////////////////////////////////
2 // checkstyle: Checks Java source code and other text files for adherence to a set of rules.
3 // Copyright (C) 2001-2024 the original author or authors.
4 //
5 // This library is free software; you can redistribute it and/or
6 // modify it under the terms of the GNU Lesser General Public
7 // License as published by the Free Software Foundation; either
8 // version 2.1 of the License, or (at your option) any later version.
9 //
10 // This library is distributed in the hope that it will be useful,
11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 // Lesser General Public License for more details.
14 //
15 // You should have received a copy of the GNU Lesser General Public
16 // License along with this library; if not, write to the Free Software
17 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 ///////////////////////////////////////////////////////////////////////////////////////////////
19
20 package com.puppycrawl.tools.checkstyle;
21
22 import java.lang.annotation.ElementType;
23 import java.lang.annotation.Inherited;
24 import java.lang.annotation.Retention;
25 import java.lang.annotation.RetentionPolicy;
26 import java.lang.annotation.Target;
27
28 /**
29 * This annotation means that the check does not contain mutable state and
30 * may be safely used from others threads at the same time.
31 * The check does not contain mutable state, if it does not change any field values at the
32 * execution stage (but it still can set properties at the initialization stage).
33 * Checker guarantees that there will be exactly one check instance during the audit.
34 * This also means, that all files will be processed by the same check instance.
35 *
36 * @noinspection ClassIndependentOfModule
37 * @noinspectionreason ClassIndependentOfModule - we keep this annotation at top level by design
38 */
39 @Retention(RetentionPolicy.RUNTIME)
40 @Target(ElementType.TYPE)
41 @Inherited
42 public @interface StatelessCheck {
43
44 // this annotation does not have properties
45
46 }