code: public void set_default_properties(UserDefaultAttrProp prop_list)
  	{
  		if (prop_list.label != null)
  			user_default_properties.addElement(new AttrProperty("label",prop_list.label));
  
  		if (prop_list.description != null)
  			user_default_properties.addElement(new AttrProperty("description",prop_list.description));
  
  		if (prop_list.unit != null)
  			user_default_properties.addElement(new AttrProperty("unit",prop_list.unit));
  
  		if (prop_list.standard_unit != null)
  			user_default_properties.addElement(new AttrProperty("standard_unit",prop_list.standard_unit));
  
  		if (prop_list.display_unit != null)
  			user_default_properties.addElement(new AttrProperty("display_unit",prop_list.display_unit));
  		
  		if (prop_list.format != null)
  			user_default_properties.addElement(new AttrProperty("format",prop_list.format));
  
  		if (prop_list.min_value != null)
  			user_default_properties.addElement(new AttrProperty("min_value",prop_list.min_value));
  
  		if (prop_list.max_value != null)
  			user_default_properties.addElement(new AttrProperty("max_value",prop_list.max_value));
  
  		if (prop_list.min_alarm != null)
  			user_default_properties.addElement(new AttrProperty("min_alarm",prop_list.min_alarm));
  
  		if (prop_list.max_alarm != null)
  			user_default_properties.addElement(new AttrProperty("max_alarm",prop_list.max_alarm));
  	}
docs: Set the attribute user default properties.
  
  @param 	prop_list	The user default attribute properties