http://www.dropwizard.io/1.3.16/dropwizard-jdbi: Dropwizard is a Java framework for developing ops-friendly, high-performance, RESTful web applications.
  • Coda Hale
  • Nick Telford
  • Graham O'Regan
  • Ryan Kennedy
  • Camille Fournier
  • Carlo Barbara
  • Matt Veitas
  • Ryan Tenney
  • Jochen Schalanda
  • Glenn McAllister
  • Nick Babcock
  • Justin Plock
  • Artem Prigoda 
package io.dropwizard.jdbi;

import org.skife.jdbi.v2.ContainerBuilder;
import org.skife.jdbi.v2.tweak.ContainerFactory;

import java.util.Optional;

public class OptionalContainerFactory implements ContainerFactory<Optional<?>> {

    @Override
    public boolean accepts(Class<?> type) {
        return Optional.class.isAssignableFrom(type);
    }

    @Override
    public ContainerBuilder<Optional<?>> newContainerBuilderFor(Class<?> type) {
        return new OptionalContainerBuilder();
    }

    private static class OptionalContainerBuilder implements ContainerBuilder<Optional<?>> {

        private Optional<?> optional = Optional.empty();

        @Override
        public ContainerBuilder<Optional<?>> add(Object it) {
            optional = Optional.ofNullable(it);
            return this;
        }

        @Override
        public Optional<?> build() {
            return optional;
        }
    }
}