Package thredds.client.catalog

Class DateType

java.lang.Object

thredds.client.catalog.DateType

@Immutable
public class DateType
extends Object

The thredds "dateType" and "dateTypeFormatted" XML element types. This is mostly a general way to specify dates in a string. It allows a date to mean "present". "Present" always sorts after any date, including dates in the future. It allows an optional attribute called "type" which is an enumeration like "created", "modified", etc taken from Dublin Core vocabulary.

A DateType can be specified in the following ways:

1. an xsd:date, with form "CCYY-MM-DD"
2. an xsd:dateTime with form "CCYY-MM-DDThh:mm:ss"
3. a valid udunits date string
4. the string "present"

See Also:

THREDDS dateType

Constructor Summary

Constructors

Constructor	Description
DateType(CalendarDate date)	Constructor using a CalendarDate

Method Summary

Modifier and Type	Method	Description
DateType	add(TimeDuration d)
DateType	add(TimeUnit d)
boolean	before(DateType d)	Is this date before the given date.
boolean	equals(Object o)
String	getFormat()	Get the SimpleDateFormat format for parsing the text, passed into the constructor.
String	getText()	Get the original text passed to the constructor.
String	getType()	Get the type of Date, passed into the constructor.
int	hashCode()
boolean	isBlank()	Was blank text passed to the constructor?
boolean	isPresent()	Does this represent the present time?
static DateType	parse(String text)	Parse text to get a DateType.
static DateType	parse(String text, String format, String type, Calendar calendar)	Parse text to get a DateType.
static DateType	present()	Get the DateType representing the present time.
DateType	subtract(TimeDuration d)
DateType	subtract(TimeUnit d)
CalendarDate	toCalendarDate()	Get the CalendarDate, may be null if isBlank().
String	toDateString()	Same as CalendarDateFormatter.toDateString
String	toDateTimeString()	Same as CalendarDateFormatter.toDateTimeStringISO
String	toString()

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

DateType

public DateType(CalendarDate date)

Constructor using a CalendarDate

Parameters:

date - the given CalendarDate

Method Detail

present

public static DateType present()

Get the DateType representing the present time.

parse

public static DateType parse(String text)
                      throws ParseException

Parse text to get a DateType.

Parameters:

text - string representation

Throws:

ParseException

parse

@Nullable
public static DateType parse(@Nullable
                             String text,
                             @Nullable
                             String format,
                             @Nullable
                             String type,
                             @Nullable
                             Calendar calendar)
                      throws ParseException

Parse text to get a DateType.

Parameters:

text - string representation

format - using java.text.SimpleDateFormat, or null

type - type of date, or null

calendar - the calendar, or null for default

Throws:

ParseException - or IllegalArgumentException if error parsing text

toCalendarDate

@Nullable
public CalendarDate toCalendarDate()

Get the CalendarDate, may be null if isBlank().

isPresent

public boolean isPresent()

Does this represent the present time?

isBlank

public boolean isBlank()

Was blank text passed to the constructor?

getText

public String getText()

Get the original text passed to the constructor.

getFormat

@Nullable
public String getFormat()

Get the SimpleDateFormat format for parsing the text, passed into the constructor.

getType

@Nullable
public String getType()

Get the type of Date, passed into the constructor.

toDateString

public String toDateString()

Same as CalendarDateFormatter.toDateString

toDateTimeString

public String toDateTimeString()

Same as CalendarDateFormatter.toDateTimeStringISO

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

before

public boolean before(DateType d)

Is this date before the given date. if d.isPresent, always true, else if this.isPresent, false.

Parameters:

d - test against this date

Returns:

true if this date before the given date

add

public DateType add(TimeDuration d)

add

public DateType add(TimeUnit d)

subtract

public DateType subtract(TimeDuration d)

subtract

public DateType subtract(TimeUnit d)