Package org.immutables.builder

Annotation Type Builder.Parameter

@Documented
@Target({PARAMETER,METHOD})
public static @interface Builder.Parameter

Factory method parameter might be turned into builder parameter using this annotation.

 class NodeFactory {
   @Builder.Factory
   static Node node(@Builder.Parameter Object value, Optional<Node> left, Optional<Node> right) {
      return ...
   }
 }
 ... // notice the constructor parameter generated
 Integer result = new NodeBuilder(new Object())
    .left(node1)
    .right(node2)
    .build();
 

Also note that with some limitation this annotation works on value type attribute to generate builder parameter.