code: public NodeDefinitionDataBuilder newNodeDefinitionDataBuilder()
     {
        NodeDefinitionDataBuilder child = new NodeDefinitionDataBuilder(this.name);
        this.nodeDefinitionDataBuilders.add(child);
        return child;
     }
docs: Creates child builder. This builder is automatically added to list of child
  builders in order to fill nodetType's child declaration array. If this
  instance is not used, it should be removed from internal list by calling
  NodeTypeData's method <b>removeNodeDefinitionDataBuilder()</b>.
  
  @return new NodeDefinitionBuilder