RequiredArgsConstructor (Lombok)

```
@Target(TYPE)
@Retention(SOURCE)
public @interface RequiredArgsConstructor
```
Generates a constructor with required arguments. Required arguments are final fields and fields with constraints such as @NonNull.
Complete documentation is found at the project lombok features page for @Constructor.
Even though it is not listed, this annotation also has the onConstructor parameter. See the full documentation for more details.

See Also:

NoArgsConstructor, AllArgsConstructor

Optional Element Summary

Optional Elements
Modifier and Type	Optional Element	Description
`AccessLevel`	`access`	Sets the access level of the constructor.
`RequiredArgsConstructor.AnyAnnotation[]`	`onConstructor`	Any annotations listed here are put on the generated constructor.
`java.lang.String`	`staticName`	If set, the generated constructor will be private, and an additional static 'constructor' is generated with the same argument list that wraps the real constructor.

- Element Detail
  - staticName
```
java.lang.String staticName
```
    If set, the generated constructor will be private, and an additional static 'constructor' is generated with the same argument list that wraps the real constructor. Such a static 'constructor' is primarily useful as it infers type arguments.
    
    Returns:
    
    Name of static 'constructor' method to generate (blank = generate a normal constructor).
    
    Default:
    
    ""
- - onConstructor
```
RequiredArgsConstructor.AnyAnnotation[] onConstructor
```
    Any annotations listed here are put on the generated constructor. The syntax for this feature depends on JDK version (nothing we can do about that; it's to work around javac bugs).
    up to JDK7:
    @RequiredArgsConstructor(onConstructor=@__({@AnnotationsGoHere}))
    from JDK8:
    @RequiredArgsConstructor(onConstructor_={@AnnotationsGohere}) // note the underscore after onConstructor.
    
    Returns:
    
    List of annotations to apply to the generated constructor.
    
    Default:
    
    {}
- - access
```
AccessLevel access
```
    Sets the access level of the constructor. By default, generated constructors are public.
    
    Returns:
    
    The constructor will be generated with this access modifier.
    
    Default:
    
    lombok.AccessLevel.PUBLIC