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@Builderと@NoArgsConstructor一緒に使える方法

Posted at

課題

以下のように@Builder@NoArgsConstructorを一緒に使うとエラーが発生する。


@Builder
@NoArgsConstructor
public class MyName {
    private String first;
    private String last;
}

解決

@AllArgsConstructorアノテーションも入れるかすべてのフィールドを持つコンストラクタを追加すればできる。


@Builder
@NoArgsConstructor
@AllArgsConstructor
public class MyName {
    private String first;
    private String last;
}

  .. または ..


@Builder
@NoArgsConstructor
public class MyName {
    private String first;
    private String last;

    MyName(String first, String last) { ... }
}
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