Can I have an abstract builder class in java with method chaining without doing unsafe operations?

Question

I\'m trying to have an abstract base class for some builder classes so I can easily reuse code between the Builder implementations. I want my builders to support method chaining

Answer 1

This should help:

abstract class AbstractBuilder>
{
   public AbstractBuilder foo()
   {
      // set some property
      return (AbstractBuilder) this;
   }

   abstract AbstractBuilder bar();
   abstract Object build();
}