A MIRIAM-compliant date representation.
This class of objects is defined by libSBML only and has no direct
equivalent in terms of SBML components. This class is not prescribed by
the SBML specifications, although it is used to implement features
defined in SBML.
A Date object stores a reasonably complete representation of date and time. Its purpose is to serve as a way to store dates to be read and written in the W3C date format used in RDF Dublin Core annotations within SBML. The W3C date format is a restricted form of ISO 8601, the international standard for the representation of dates and times. A time and date value in this W3C format takes the form YYYY-MM-DDThh:mm:ssXHH:ZZ (e.g., 1997-07-16T19:20:30+01:00
) where XHH:ZZ is the time zone offset. The libSBML Date object contains the following fields to represent these values:
- year: a long integer representing the year. This should be a four-digit number such as
2011
.
- month: a long integer representing the month, with a range of values of 1–12. The value
1
represents January, and so on.
- day: a long integer representing the day of the month, with a range of values of 1–31.
- hour: a long integer representing the hour on a 24-hour clock, with a range of values of 0–23.
- minute: a long integer representing the minute, with a range of 0–59.
- second: a long integer representing the second, with a range of 0–59.
- sign: a long integer representing the sign of the offset (
0
signifying +
and 1
signifying -
). See the paragraph below for further explanations.
- hours offset: a long integer representing the time zone's hour offset from GMT.
- minute offset: a long integer representing the time zone's minute offset from GMT.
To illustrate the time zone offset, a value of -05:00
would correspond to USA Eastern Standard Time. In the Date object, this would require a value of 1
for the sign field, 5
for the hour offset and 0
for the minutes offset.
In the restricted RDF annotations used in SBML, described in Section 6 of the SBML Level 2 and Level 3 specification documents, date/time stamps can be used to indicate the time of creation and modification of a model. The following SBML model fragment illustrates this:
<model metaid='_180340' id='GMO' name='Goldbeter1991_MinMitOscil'>
<annotation>
<rdf:RDF xmlns:rdf='http://www.w3.org/1999/02/22-rdf-syntax-ns#'
xmlns:dc='http://purl.org/dc/elements/1.1/'
xmlns:dcterms='http://purl.org/dc/terms/'
xmlns:vCard='http://www.w3.org/2001/vcard-rdf/3.0#' >
<rdf:Description rdf:about='#_180340'>
<dc:creator>
<rdf:Bag>
<rdf:li rdf:parseType='Resource'>
<vCard:N rdf:parseType='Resource'>
<vCard:Family>Shapiro</vCard:Family>
<vCard:Given>Bruce</vCard:Given>
</vCard:N>
<vCard:EMAIL>bshapiro@jpl.nasa.gov</vCard:EMAIL>
<vCard:ORG rdf:parseType='Resource'>
<vCard:Orgname>NASA Jet Propulsion Laboratory</vCard:Orgname>
</vCard:ORG>
</rdf:li>
</rdf:Bag>
</dc:creator>
<dcterms:created rdf:parseType='Resource'>
<dcterms:W3CDTF>2005-02-06T23:39:40+00:00</dcterms:W3CDTF>
</dcterms:created>
<dcterms:modified rdf:parseType='Resource'>
<dcterms:W3CDTF>2005-09-13T13:24:56+00:00</dcterms:W3CDTF>
</dcterms:modified>
</rdf:Description>
</rdf:RDF>
</annotation>
</model>
|
def | __init__ (self, args) |
| A MIRIAM-compliant date representation. More...
|
|
def | clone (self) |
| Creates and returns a deep copy of this Date object. More...
|
|
def | getDateAsString (self) |
| Returns the current Date value in text-string form. More...
|
|
def | getDay (self) |
| Returns the day from this Date. More...
|
|
def | getHour (self) |
| Returns the hour from this Date. More...
|
|
def | getHoursOffset (self) |
| Returns the hours of the time zone offset from this Date. More...
|
|
def | getMinute (self) |
| Returns the minute from this Date. More...
|
|
def | getMinutesOffset (self) |
| Returns the minutes of the time zone offset from this Date. More...
|
|
def | getMonth (self) |
| Returns the month from this Date. More...
|
|
def | getSecond (self) |
| Returns the seconds from this Date. More...
|
|
def | getSignOffset (self) |
| Returns the sign of the time zone offset from this Date. More...
|
|
def | getYear (self) |
| Returns the year from this Date. More...
|
|
def | representsValidDate (self) |
| Returns true or false depending on whether this date object represents a valid date and time value. More...
|
|
def | setDateAsString (self, date) |
| Sets the value of this Date object using a date and time value expressed as a text string. More...
|
|
def | setDay (self, day) |
| Sets the value of the day of this Date object. More...
|
|
def | setHour (self, hour) |
| Sets the value of the hour of this Date object. More...
|
|
def | setHoursOffset (self, hoursOffset) |
| Sets the value of this Date object's time zone hour offset. More...
|
|
def | setMinute (self, minute) |
| Sets the value of the minute of this Date object. More...
|
|
def | setMinutesOffset (self, minutesOffset) |
| Sets the value of this Date object's time zone minutes offset. More...
|
|
def | setMonth (self, month) |
| Sets the value of the month of this Date object. More...
|
|
def | setSecond (self, second) |
| Sets the value of the second of the Date object. More...
|
|
def | setSignOffset (self, sign) |
| Sets the value of the sign of the time zone offset of this Date object. More...
|
|
def | setYear (self, year) |
| Sets the value of the year of this Date object. More...
|
|
def libsbml.Date.setDateAsString |
( |
|
self, |
|
|
|
date |
|
) |
| |
Sets the value of this Date object using a date and time value expressed as a text string.
setDateAsString(string date) int
This method expects its argument to be in the W3C date format with time zone offset, used in RDF Dublin Core annotations within SBML.
- The date format expresses a date and time value as a string of the form YYYY-MM-DDThh:mm:ssXHH:ZZ, where
- YYYY is a four-digit integer representing the year. This should be a four-digit number such as
2011
.
- MM is a two-digit integer representing the month, with a range of values of 01–12. The value
1
represents January, and so on.
- DD is a two-digit integer representing the day of the month, with a range of values of 01–31.
- hh is a two-digit integer representing the hour on a 24-hour clock, with a range of values of 00–23.
- mm is a two-digit integer representing the minute, with a range of 00–59.
- ss is a two-digit integer representing the second, with a range of 0–59.
- X is the the sign of the time zone offset, either
+
or -
.
- HH is a two-digit integer representing the hour of the time zone offset, with a range of 00–23.
- ZZ is a two-digit integer representing the minutes of the time zone offset, with a range of 00–59.
In the string format above, it is important not to forget the literal character T
in the string. Here is an example date/time string: 1997-07-16T19:20:30+01:00
, which would represent July 16, 1997, at 19:20:30 in Central European Time (which is UTC +1:00).
If this method is given a None
argument or a string of length zero, it constructs a Date object with the value of January 1, 2000, at time 00:00 UTC. Otherwise, the argument must be in the complete format described above, or unpredictable results will happen.
- Parameters
-
date | a string representing the date. |
- Returns
- integer value indicating success/failure of the function. The possible values returned by this function are: