code: public void saveState(IMemento memento) {
  		memento.putString(TAG_HIDEFIELDS, String.valueOf(hasMemberFilter(FILTER_FIELDS)));
  		memento.putString(TAG_HIDESTATIC, String.valueOf(hasMemberFilter(FILTER_STATIC)));
  		memento.putString(TAG_HIDENONPUBLIC, String.valueOf(hasMemberFilter(FILTER_NONPUBLIC)));
  		memento.putString(TAG_HIDELOCALTYPES, String.valueOf(hasMemberFilter(FILTER_LOCALTYPES)));
  	}
docs: Saves the state of the filter actions in a memento.
  
  @param memento the memento to which the state is saved