code: protected void logIncompatibleValueError(PropertyIdValue propertyIdValue,
  			String datatype, String valueType) {
  		logger.warn("Property " + propertyIdValue.getId() + " has type \""
  				+ datatype + "\" but a value of type " + valueType
  				+ ". Data ignored.");
  	}
docs: Logs a message for a case where the value of a property does not fit to
  its declared datatype.
  
  @param propertyIdValue
  the property that was used
  @param datatype
  the declared type of the property
  @param valueType
  a string to denote the type of value