code: private void processEmbeddedField(Field child) {
      EmbeddedField embeddedChild = new EmbeddedField(child, field);
      EmbeddedMetadata childMetadata = EmbeddedIntrospector.introspect(embeddedChild, entityMetadata);
      metadata.putEmbeddedMetadata(childMetadata);
    }
docs: Processes a nested embedded field.
  
  @param child
  the nested embedded field.