code: private void validateValues(String column, long value, boolean allowZero) {
  		if (value < 0 || (value == 0 && !allowZero)) {
  			throw new GeoPackageException(column
  					+ " value must be greater than "
  					+ (allowZero ? "or equal to " : "") + "0: " + value);
  		}
  	}
docs: Validate the long values are greater than 0, or greater than or equal to
  0 based upon the allowZero flag
  
  @param column
  @param value
  @param allowZero