In order to be a parameter, an attribute need to have one of the two annotations de.grogra.xl.parameter.IsParameter, or de.grogra.xl.parameter.AllAsParameter. These two annotations can have two arguments: a class, a name. Neither is required. The arguments are:

1. A name: the name has to match the name of a declared parameter manager. That parameter manager will be used for this parameter.
2. A class: The class has to extend ParameterManager. It will use the “default” manager of that class.

The annotation IsParameter mark the attribute as parameter.

@AddParameterManager(name="env_param", type=de.grogra.rgg.parameter.TextFilePM.class)
@AddParameterManager(name="other_param", type=de.grogra.rgg.parameter.TextFilePM.class)
 
// set the parameter manager env_param to be the default in this file
@DefaultParameterManager("env_param")
 
// added to the default manager , i.e. env_param
@IsParameter
float myenv_param;
 
// added to specified manager, other_param
@IsParameter("other_param")
String myString;
 
// added to a new parameter manager of type TextFilePM.class
@IsParameter(type=de.grogra.rgg.parameter.TextFilePM.class)
int myint = 5;

The annotation AllAsParameter mark all attributes of the current RGG scope as parameters.

@AddParameterManager(name="env_param", type=de.grogra.rgg.parameter.TextFilePM.class)
@AddParameterManager(name="other_param", type=de.grogra.rgg.parameter.TextFilePM.class)
 
// set the parameter manager env_param to be the default in this file
@DefaultParameterManager("env_param")
 
@AllAsParameter
// all the following parameters will be added to the default "env_param" 
float myenv_param;
String myString;
int myint = 5;
 
// Single declaration override the all declaration
@IsParameter("other_param")
double notanenv;