How to exclude property from Lombok builder?

How to exclude property from Lombok builder?

To exclude a property from being included in the Lombok builder generated for a class, you can use the @Builder.Exclude annotation. This annotation tells Lombok to exclude the annotated field or method from the generated builder. Here's how you can use it:

  • Add Lombok dependency: Make sure you have Lombok added as a dependency to your project. If you're using Maven, you can include it in your pom.xml like this:
<dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <version>1.18.22</version> <!-- Replace with the latest version --> <scope>provided</scope> </dependency>
  • Annotate fields or methods to exclude: In your Java class, annotate the fields or methods that you want to exclude from the Lombok builder with @Builder.Exclude. For example:
import lombok.Builder; import lombok.Getter; @Getter @Builder public class MyClass { private String includedField; @Builder.Exclude private String excludedField; }

In this example, the excludedField is annotated with @Builder.Exclude, which means it won't be included in the generated builder for MyClass.

  • Use the Lombok builder: You can use the Lombok-generated builder to create instances of your class, but the excluded field won't be included in the builder methods. For example:
MyClass myObject = MyClass.builder() .includedField("includedValue") .build(); // excludedField is not part of the builder

By using @Builder.Exclude, you can control which fields or methods are included in the Lombok-generated builder for your class and which ones are not.

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