immutables

http://immutables.org에서 전체 문서를 읽어보세요.

"샌드위치"라고도 불리는 현대적인 사용 스타일

 // Define abstract value type using interface, abstract class or annotation
@ Value . Immutable
public interface ValueObject extends WithValueObject {
  // WithValueObject is not yet generated, We extend With* to inherit `with*` method signatures
  String name ();
  List < Integer > counts ();
  Optional < String > description ();

  class Builder extends ImmutableValueObject . Builder {}
  // ImmutableValueObject.Builder will be generated and
  // our builder will inherit and reexport methods as its own.
  // Static nested Builder will inherit all the public method
  // signatures of ImmutableValueObject.Builder
} 

// Use generated immutable implementation and builder
ValueObject v =
    new ValueObject . Builder ()
        . name ( "Nameless" )
        . description ( "present" )
        . addCounts ( 1 )
        . addCounts ( 2 )
        . build ();

v = v . withName ( "Doe" );

//fetch values via accessors
List < Integer > counts = v . counts ();
Optional < String > description = v . description ();

ImmutableValueObject는 생성된 유형 외부에서 사용되지 않습니다. 여기에서 이 세대 스타일과 다른 세대 스타일을 확인하세요.

특허

   Copyright 2013-2024 Immutables Authors and Contributors

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.

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