1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
/*
* Copyright (C) 2009-2013 The Project Lombok Authors.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package lombok;
import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
/**
* If put on a parameter, lombok will insert a null-check at the start of the method / constructor's body, throwing a
* {@code NullPointerException} with the parameter's name as message. If put on a field, any generated method assigning
* a value to this field will also produce these nullchecks.
* <p>
* Note that any annotation named {@code NonNull} with any casing and any package will result in nullchecks produced for
* generated methods (and the annotation will be copied to the getter return type and any parameters of generated methods),
* but <em>only</em> this annotation, if present on a parameter, will result in a null check inserted into your otherwise
* handwritten method.
*
* WARNING: If the java community ever does decide on supporting a single {@code @NonNull} annotation (for example via JSR305), then
* this annotation will <strong>be deleted</strong> from the lombok package. If the need to update an import statement scares
* you, you should use your own annotation named {@code @NonNull} instead of this one.
*/
@Target({ElementType.FIELD, ElementType.METHOD, ElementType.PARAMETER, ElementType.LOCAL_VARIABLE})
@Retention(RetentionPolicy.CLASS)
@Documented
public @interface NonNull {}
|