Using XML with Legacy Business Applications

DataCellDateYYYYMMDD Class

This class handles conversion to and from the date data type in the common YYYYMMDD format to the schema language date data type in ISO 8601 date format, that is, YYYY-MM-DD. In keeping with our strategy of using schema validation as our primary data validation mechanism, I include error checking sufficient to prevent only most runtime exceptions.

Logic for the DataCellDateYYYYMMDD fromXML Method

Arguments: None Returns: Error status or throws exception IF Buffer Length != 10 Return error ENDIF Month <- Cell Buffer characters at offsets 5 and 6 Day <- Cell Buffer characters at offsets 8 and 9 Year <- Cell Buffer characters at offsets 0 through 3 Cell Buffer <- Year + Month + Day Return success

Logic for the DataCellDateYYYYMMDD ...