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Diffstat (limited to 'src/core/lombok/Data.java')
-rw-r--r-- | src/core/lombok/Data.java | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/src/core/lombok/Data.java b/src/core/lombok/Data.java new file mode 100644 index 00000000..488de640 --- /dev/null +++ b/src/core/lombok/Data.java @@ -0,0 +1,60 @@ +/* + * Copyright © 2009 Reinier Zwitserloot and Roel Spilker. + * + * 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; + +/** + * Generates getters for all fields, a useful toString method, and hashCode and equals implementations that check + * all non-transient fields. Will also generate setters for all non-final fields, as well as a constructor. + * <p> + * If any method to be generated already exists (in name - the return type or parameters are not relevant), then + * that method will not be generated by the Data annotation. + * <p> + * The generated constructor will have 1 parameter for each final field. The generated toString will print all fields, + * while the generated hashCode and equals take into account all non-transient fields.<br> + * Static fields are skipped (no getter or setter, and they are not included in toString, equals, hashCode, or the constructor). + * <p> + * {@code toString}, {@code equals}, and {@code hashCode} use the deepX variants in the + * {@code java.util.Arrays} utility class. Therefore, if your class has arrays that contain themselves, + * these methods will just loop endlessly until the inevitable {@code StackOverflowError}. This behaviour + * is no different from {@code java.util.ArrayList}, though. + */ +@Target(ElementType.TYPE) +@Retention(RetentionPolicy.SOURCE) +public @interface Data { + /** + * If you specify a static constructor name, then the generated constructor will be private, and + * instead a static factory method is created that other classes can use to create instances. + * We suggest the name: "of", like so: + * + * <pre> + * public @Data(staticConstructor = "of") class Point { final int x, y; } + * </pre> + * + * Default: No static constructor, instead the normal constructor is public. + */ + String staticConstructor() default ""; +} |