Java DateTimeValue类代码示例

import com.google.visualization.datasource.datatable.value.DateTimeValue; //导入依赖的package包/类
/**
 * @param mValue
 *          mesured value
 * @return gviz DataTable
 * @throws DataSourceException
 *          data source exception
 */
private static DataTable getDataTable(InterpolatedValue mValue) throws DataSourceException {

  MeasurementType mType = mValue.getMeasurementType();

  DataTable data = new DataTable();

  try {
    data.addColumn(
        new ColumnDescription("Date", ValueType.DATETIME, "Date & Time"));
    data.addColumn(
        new ColumnDescription(mType.getName(), ValueType.NUMBER, mType.toString()));

    TableRow row = new TableRow();

    XMLGregorianCalendar xgcal = DateConvert.convertDate(mValue.getStart());
    row.addCell(new DateTimeValue(convertTimestamp(xgcal)));
    row.addCell(mValue.getValue());

    data.addRow(row);
  }
  catch (TypeMismatchException | DatatypeConfigurationException e) {
    throw new DataSourceException(ReasonType.INTERNAL_ERROR, "Problem adding data to table"); // NOPMD
  }
  return data;
}
 

import com.google.visualization.datasource.datatable.value.DateTimeValue; //导入依赖的package包/类
/**
 * Converts the given value to date. The value must be of type date or datetime.
 *
 * @param value The given value.
 *
 * @return Date object with the same value as the given value.
 */
private Date getDateFromValue(Value value) {
  Calendar calendar;
  if (value.getType() == ValueType.DATE) {
    calendar = ((DateValue) value).getObjectToFormat();
  } else { // datetime
    calendar = ((DateTimeValue) value).getObjectToFormat();
  }
  return calendar.getTime();
}
 

import com.google.visualization.datasource.datatable.value.DateTimeValue; //导入依赖的package包/类
/**
 * Parses a string to a date time value.
 *
 * @param val The string to parse.
 *
 * @return A date time value based on the given string.
 *
 * @throws ParseException If val cannot be parsed into a date.
 */
private DateTimeValue parseDateTime(String val) throws ParseException {
  Date date = ((SimpleDateFormat) uFormat).parse(val);
  GregorianCalendar gc = new GregorianCalendar(TimeZone.getTimeZone("GMT"));
  gc.setTime(date);
  return new DateTimeValue(gc);
}
 

import com.google.visualization.datasource.datatable.value.DateTimeValue; //导入依赖的package包/类
/**
 * Evaluates this scalar function. Returns a DateTime with the current time.
 *
 * @param values Ignored.
 *
 * @return A DateTime value with the current time.
 */
public Value evaluate(List<Value> values) {
  return new DateTimeValue(new GregorianCalendar(
      TimeZone.getTimeZone("GMT")));
}