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Diffstat (limited to 'src/core/lombok/With.java')
| -rw-r--r-- | src/core/lombok/With.java | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/src/core/lombok/With.java b/src/core/lombok/With.java new file mode 100644 index 00000000..141d1fa6 --- /dev/null +++ b/src/core/lombok/With.java @@ -0,0 +1,94 @@ +/* + * Copyright (C) 2012-2019 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.ElementType; +import java.lang.annotation.Retention; +import java.lang.annotation.RetentionPolicy; +import java.lang.annotation.Target; + +import lombok.AccessLevel; + +/** + * Put on any field to make lombok build a 'with' - a withX method which produces a clone of this object (except for 1 field which gets a new value). + * <p> + * Complete documentation is found at <a href="https://projectlombok.org/features/With">the project lombok features page for @With</a>. + * <p> + * Example: + * <pre> + * private @With final int foo; + * </pre> + * + * will generate: + * + * <pre> + * public SELF_TYPE withFoo(int foo) { + * return this.foo == foo ? this : new SELF_TYPE(otherField1, otherField2, foo); + * } + * </pre> + * <p> + * This annotation can also be applied to a class, in which case it'll be as if all non-static fields that don't already have + * a {@code With} annotation have the annotation. + */ +@Target({ElementType.FIELD, ElementType.TYPE}) +@Retention(RetentionPolicy.SOURCE) +public @interface With { + /** + * If you want your with method to be non-public, you can specify an alternate access level here. + * + * @return The method will be generated with this access modifier. + */ + AccessLevel value() default AccessLevel.PUBLIC; + + /** + * Any annotations listed here are put on the generated method. + * The syntax for this feature depends on JDK version (nothing we can do about that; it's to work around javac bugs).<br> + * up to JDK7:<br> + * {@code @With(onMethod=@__({@AnnotationsGoHere}))}<br> + * from JDK8:<br> + * {@code @With(onMethod_={@AnnotationsGohere})} // note the underscore after {@code onMethod}. + * + * @return List of annotations to apply to the generated method. + */ + AnyAnnotation[] onMethod() default {}; + + /** + * Any annotations listed here are put on the generated method's parameter. + * The syntax for this feature depends on JDK version (nothing we can do about that; it's to work around javac bugs).<br> + * up to JDK7:<br> + * {@code @With(onParam=@__({@AnnotationsGoHere}))}<br> + * from JDK8:<br> + * {@code @With(onParam_={@AnnotationsGohere})} // note the underscore after {@code onParam}. + * + * @return List of annotations to apply to the generated parameter in the method. + */ + AnyAnnotation[] onParam() default {}; + + /** + * Placeholder annotation to enable the placement of annotations on the generated code. + * @deprecated Don't use this annotation, ever - Read the documentation. + */ + @Deprecated + @Retention(RetentionPolicy.SOURCE) + @Target({}) + @interface AnyAnnotation {} +} |