builder for HashMap

Question

Guava provides us with great factory methods for Java types, such as Maps.newHashMap().

But are there also builders for java Maps?

HashM         


        

Answer 1

Here is a very simple one ...

public class FluentHashMap extends java.util.HashMap {
  public FluentHashMap with(K key, V value) {
    put(key, value);
    return this;
  }

  public static  FluentHashMap map(K key, V value) {
    return new FluentHashMap().with(key, value);
  }
}

then

import static FluentHashMap.map;

HashMap m = map("a", 1).with("b", 2);

See https://gist.github.com/culmat/a3bcc646fa4401641ac6eb01f3719065