Examples of net.sf.saxon.type.ConversionResult

net.sf.saxon.type.ConversionResult
This is a marker interface used as the result methods that convert or cast values from one type to another. It is implemented by AtomicValue, which indicates a successful conversion, and by ValidationFailure, which indicates an unsuccessful conversion. An unsuccessful conversion does not throw an exception because exceptions are expensive and should not be used on success paths. For example when validating a union, conversion failures are to be expected.

          Object value = Value.convertToJava(colItem);
          if (value instanceof Item) {
            Item i = (Item)value;
            BuiltInAtomicType bat = typeMapping.get(proColumn.getSymbol().getType());
            if (bat != null) {
              ConversionResult cr = StringValue.convertStringToBuiltInType(i.getStringValueCS(), bat, null);
              value = cr.asAtomic();
              value = Value.convertToJava((AtomicValue)value);
              if (value instanceof Item) {
                value = ((Item)value).getStringValue();
              }
            } else {

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     * gYearMonth, gYear, gMonth, gMonthDay, or gDay
     * @return either a value of the appropriate type, or a ValidationFailure if the format is invalid
     */


    public static ConversionResult makeCalendarValue(CharSequence s) {
        ConversionResult cr = DateTimeValue.makeDateTimeValue(s);
        ConversionResult firstError = cr;
        if (cr instanceof ValidationFailure) {
            cr = DateValue.makeDateValue(s);
        }
        if (cr instanceof ValidationFailure) {
            cr = TimeValue.makeTimeValue(s);

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     * is specified and it does not specify a time zone, then the date string format must not include
     * a time zone.
     */
    public static String date(String datetimeIn) {
        if (datetimeIn.indexOf('T') >= 0) {
            ConversionResult cr = DateTimeValue.makeDateTimeValue(datetimeIn);
            if (cr instanceof ValidationFailure) {
                return "";
            } else {
                return ((DateTimeValue)cr).toDateValue().getStringValue();
            }
        } else {
            ConversionResult cr = DateValue.makeDateValue(datetimeIn);
            if (cr instanceof ValidationFailure) {
                return "";
            } else {
                return ((AtomicValue)cr).getStringValue();
            }

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     * @return the time part of the string
     */


    public static String time(String dateTime) {
        if (dateTime.indexOf('T') >= 0) {
            ConversionResult cr = DateTimeValue.makeDateTimeValue(dateTime);
            if (cr instanceof ValidationFailure) {
                return "";
            } else {
                return ((DateTimeValue)cr).toTimeValue().getStringValue();
            }
        } else {
            ConversionResult cr = TimeValue.makeTimeValue(dateTime);
            if (cr instanceof ValidationFailure) {
                return "";
            } else {
                return ((AtomicValue)cr).getStringValue();
            }

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     * implementation also allows the input value to contain a timezone</p>
     * @throws XPathException
     */
    public static double year(String datetimeIn) {
        try {
            ConversionResult cr = CalendarValue.makeCalendarValue(datetimeIn);
            if (cr instanceof ValidationFailure) {
                return Double.NaN;
            }
            if (cr instanceof GMonthValue || cr instanceof GMonthDayValue ||
                    cr instanceof GDayValue || cr instanceof TimeValue) {

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     * @return the month extracted from the dateTime
     */


    public static double monthInYear(String dateTime) {
        try {
            ConversionResult cr = CalendarValue.makeCalendarValue(dateTime);
            if (cr instanceof ValidationFailure) {
                return Double.NaN;
            }
            if (cr instanceof GYearValue || cr instanceof GDayValue ||
                    cr instanceof GDayValue || cr instanceof TimeValue) {

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     * @return the day number within the month, as a double
     */


    public static double dayInMonth(String dateTime) throws XPathException {
        try {
            ConversionResult cr = CalendarValue.makeCalendarValue(dateTime);
            if (cr instanceof ValidationFailure) {
                return Double.NaN;
            }
            if (cr instanceof GYearValue || cr instanceof GYearMonthValue ||
                    cr instanceof GMonthValue || cr instanceof TimeValue) {

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     * @return the hour
     */


    public static double hourInDay(String dateTime) {
        try {
            ConversionResult cr = CalendarValue.makeCalendarValue(dateTime);
            if (cr instanceof ValidationFailure) {
                return Double.NaN;
            }
            if (!(cr instanceof DateTimeValue || cr instanceof TimeValue)) {
                return Double.NaN;

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     * @return the minute
     */


    public static double minuteInHour(String dateTime) {
        try {
            ConversionResult cr = CalendarValue.makeCalendarValue(dateTime);
            if (cr instanceof ValidationFailure) {
                return Double.NaN;
            }
            if (!(cr instanceof DateTimeValue || cr instanceof TimeValue)) {
                return Double.NaN;

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     * @return the second
     */


    public static double secondInMinute(String dateTime) throws XPathException {
        try {
            ConversionResult cr = CalendarValue.makeCalendarValue(dateTime);
            if (cr instanceof ValidationFailure) {
                return Double.NaN;
            }
            if (!(cr instanceof DateTimeValue || cr instanceof TimeValue)) {
                return Double.NaN;

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net.sf.saxon.functions.NumberFn

net.sf.saxon.option.exslt.Date

net.sf.saxon.s9api.XdmAtomicValue

net.sf.saxon.s9api.XdmItem

net.sf.saxon.value.CalendarValue

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