/// <summary> Constructs a filter for Field <code>f</code> matching times
/// between <code>from</code> and <code>to</code> inclusively.
/// </summary>
public DateFilter(System.String f, long from, long to)
{
InitBlock();
field = f;
start = DateField.TimeToString(from);
end = DateField.TimeToString(to);
}
/// <summary> Constructs a filter for Field <code>f</code> matching times
/// on or before <code>time</code>.
/// </summary>
public static DateFilter Before(System.String field, long time)
{
DateFilter result = new DateFilter(field);
result.end = DateField.TimeToString(time);
return(result);
}
/// <summary> Constructs a filter for Field <code>f</code> matching
/// times on or after <code>time</code>.
/// </summary>
public static DateFilter After(System.String field, long time)
{
DateFilter result = new DateFilter(field);
result.start = DateField.TimeToString(time);
return(result);
}