code: public static JsonModelGenerator from(Element element, String classNamePostfix) {
  		JsonModelGenerator generator = new JsonModelGenerator(element, classNamePostfix);
  
  		generator.processJsonModel();
  		generator.processJsonKeys();
  		generator.processStoreJson();
  
  		if (generator.jsonModel.existsBase) {
  			JsonModelGenerator baseGenerator =
  					from(generator.jsonModel.targetBaseElement, classNamePostfix);
  			generator.jsonModel.getInheritKeys().addAll(baseGenerator.jsonModel.getKeys());
  		}
  
  		return generator;
  	}
docs: Process {@link Element} to generate.
  @param element
  @param classNamePostfix
  @return {@link JsonModelGenerator}
  @author vvakame