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Groovy 2.2.0
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org.codehaus.groovy.runtime
[Java] Class DateGroovyMethods

java.lang.Object
  org.codehaus.groovy.runtime.DefaultGroovyMethodsSupport
      org.codehaus.groovy.runtime.DateGroovyMethods

public class DateGroovyMethods
extends DefaultGroovyMethodsSupport

This class defines new groovy methods which appear on normal JDK Date and Calendar classes inside the Groovy environment.

Method Summary
static Date clearTime(Date self)

Clears the time portion of this Date instance; useful utility where it makes sense to compare month/day/year only portions of a Date.
static Date clearTime(Date self)

Clears the time portion of this java.sql.Date instance; useful utility where it makes sense to compare month/day/year only portions of a Date.
static Calendar clearTime(Calendar self)

Clears the time portion of this Calendar instance; useful utility where it makes sense to compare month/day/year only portions of a Calendar.
static Calendar copyWith(Calendar self, Map updates)

Support creating a new Date having similar properties to an existing Date (which remains unaltered) but with some fields updated according to a Map of changes.
static Date copyWith(Date self, Map updates)

Support creating a new Date having similar properties to an existing Date (which remains unaltered) but with some fields updated according to a Map of changes.
static void downto(Date self, Date to, Closure closure)

Iterates from this date down to the given date, inclusive, decrementing by one day each time.
static void downto(Calendar self, Calendar to, Closure closure)

Iterates from the date represented by this calendar up to the date represented by the given calendar, inclusive, incrementing by one day each time.
static String format(Date self, String format)

static String format(Date self, String format, TimeZone tz)

static String format(Calendar self, String pattern)

static int getAt(Date self, int field)

Support the subscript operator for a Date.
static int getAt(Calendar self, int field)

Support the subscript operator for a Calendar.
static String getDateString(Date self)

static String getDateTimeString(Date self)

static String getTimeString(Date self)

static Date minus(Date self, int days)

Subtract a number of days from this date and returns the new date.
static Date minus(Date self, int days)

Subtract a number of days from this date and returns the new date.
static Timestamp minus(Timestamp self, int days)

Subtract a number of days from this Timestamp and returns the new Timestamp object.
static int minus(Calendar self, Calendar then)

Subtract another date from this one and return the number of days of the difference.
static int minus(Date self, Date then)

Subtract another Date from this one and return the number of days of the difference.
static Date next(Date self)

Increment a Date by one day.
static Calendar next(Calendar self)

Increment a Calendar by one day.
static Date next(Date self)

Increment a java.sql.Date by one day.
static Date plus(Date self, int days)

Add a number of days to this date and returns the new date.
static Date plus(Date self, int days)

Add a number of days to this date and returns the new date.
static Timestamp plus(Timestamp self, int days)

Add number of days to this Timestamp and returns the new Timestamp object.
static Calendar previous(Calendar self)

Decrement a Calendar by one day.
static Date previous(Date self)

Decrement a Date by one day.
static Date previous(Date self)

Decrement a java.sql.Date by one day.
static void putAt(Calendar self, int field, int value)

Support the subscript operator for mutating a Calendar.

static void putAt(Date self, int field, int value)

Support the subscript operator for mutating a Date.
static void set(Calendar self, Map updates)

Support mutating a Calendar with a Map.
static void set(Date self, Map updates)

Support mutating a Date with a Map.
static Calendar toCalendar(Date self)

Convert a Date to a Calendar.
static Calendar updated(Calendar self, Map updates)

Legacy alias for copyWith.

static Date updated(Date self, Map updates)

Legacy alias for copyWith.

static void upto(Date self, Date to, Closure closure)

Iterates from this date up to the given date, inclusive, incrementing by one day each time.
static void upto(Calendar self, Calendar to, Closure closure)

Iterates from the date represented by this calendar up to the date represented by the given calendar, inclusive, incrementing by one day each time.
 
Methods inherited from class DefaultGroovyMethodsSupport
cloneSimilarCollection, cloneSimilarMap, closeQuietly, closeWithWarning, createSimilarArray, createSimilarCollection, createSimilarCollection, createSimilarList, createSimilarMap, createSimilarOrDefaultCollection, createSimilarSet, normaliseIndex, sameType, subListBorders, subListBorders
 
Methods inherited from class Object
wait, wait, wait, equals, toString, hashCode, getClass, notify, notifyAll
 

Method Detail

clearTime

public static Date clearTime(Date self)
Clears the time portion of this Date instance; useful utility where it makes sense to compare month/day/year only portions of a Date.
Parameters:
self - a Date
Returns:
the Date but with the time portion cleared
Since:
1.6.7

clearTime

public static Date clearTime(Date self)
Clears the time portion of this java.sql.Date instance; useful utility where it makes sense to compare month/day/year only portions of a Date.
Parameters:
self - a java.sql.Date
Returns:
the java.sql.Date but with the time portion cleared
Since:
1.6.7

clearTime

public static Calendar clearTime(Calendar self)
Clears the time portion of this Calendar instance; useful utility where it makes sense to compare month/day/year only portions of a Calendar.
Parameters:
self - a Calendar
Returns:
the Calendar but with the time portion cleared
Since:
1.6.7

copyWith

public static Calendar copyWith(Calendar self, Map updates)
Support creating a new Date having similar properties to an existing Date (which remains unaltered) but with some fields updated according to a Map of changes.

Example usage: 

 import static java.util.Calendar.YEAR
 def now = Calendar.instance
 def nextYear = now[YEAR] + 1
 def oneYearFromNow = now.copyWith(year: nextYear)
 println now.time
 println oneYearFromNow.time
Parameters:
self - A Calendar
updates - A Map of Calendar keys and values
Returns:
The newly created Calendar
See Also:
Calendar.set
Calendar.set
set(java.util.Calendar, java.util.Map)
Since:
2.2.0

copyWith

public static Date copyWith(Date self, Map updates)
Support creating a new Date having similar properties to an existing Date (which remains unaltered) but with some fields updated according to a Map of changes.

Example usage: 

 import static java.util.Calendar.YEAR
 def today = new Date()
 def nextYear = today[YEAR] + 1
 def oneYearFromNow = today.copyWith(year: nextYear)
 println today
 println oneYearFromNow
Parameters:
self - A Date
updates - A Map of Calendar keys and values
Returns:
The newly created Date
See Also:
Calendar.set
set(java.util.Date, java.util.Map)
copyWith(java.util.Calendar, java.util.Map)
Since:
2.2.0

downto

public static void downto(Date self, Date to, Closure closure)
Iterates from this date down to the given date, inclusive, decrementing by one day each time.
Parameters:
self - a Date
to - another Date to go down to
closure - the closure to call
Since:
2.2

downto

public static void downto(Calendar self, Calendar to, Closure closure)
Iterates from the date represented by this calendar up to the date represented by the given calendar, inclusive, incrementing by one day each time.
Parameters:
self - a Calendar
to - another Calendar to go down to
closure - the closure to call
Since:
2.2

format

public static String format(Date self, String format)

Create a String representation of this date according to the given format pattern.

For example, if the system timezone is GMT, new Date(0).format('MM/dd/yy') would return the string "01/01/70". See documentation for SimpleDateFormat for format pattern use.

Note that a new DateFormat instance is created for every invocation of this method (for thread safety).

Parameters:
self - a Date
format - the format pattern to use according to SimpleDateFormat
Returns:
a string representation of this date.
See Also:
SimpleDateFormat
Since:
1.5.7

format

public static String format(Date self, String format, TimeZone tz)

Create a String representation of this date according to the given format pattern and timezone.

For example: def d = new Date(0) def tz = TimeZone.getTimeZone('GMT') println d.format('dd/MMM/yyyy', tz) would return the string "01/Jan/1970". See documentation for SimpleDateFormat for format pattern use.

Note that a new DateFormat instance is created for every invocation of this method (for thread safety).

Parameters:
self - a Date
format - the format pattern to use according to SimpleDateFormat
tz - the TimeZone to use
Returns:
a string representation of this date.
See Also:
SimpleDateFormat
Since:
1.8.3

format

public static String format(Calendar self, String pattern)

Shortcut for SimpleDateFormat to output a String representation of this calendar instance. This method respects the Calendar's assigned TimeZone, whereas calling cal.time.format('HH:mm:ss') would use the system timezone.

Note that Calendar equivalents of date.getDateString() and variants do not exist because those methods are Locale-dependent. Although a Calendar may be assigned a Locale, that information is lost and therefore cannot be used to control the default date/time formats provided by these methods. Instead, the system Locale would always be used. The alternative is to simply call DateFormat.getDateInstance and pass the same Locale that was used for the Calendar.

Parameters:
self - this calendar
pattern - format pattern
Returns:
String representation of this calendar with the given format.
See Also:
DateFormat.setTimeZone
SimpleDateFormat.format
format(java.util.Date, String)
Since:
1.6.0

getAt

public static int getAt(Date self, int field)
Support the subscript operator for a Date.
Parameters:
self - a Date
field - a Calendar field, e.g. MONTH
Returns:
the value for the given field, e.g. FEBRUARY
See Also:
Calendar
Since:
1.5.5

getAt

public static int getAt(Calendar self, int field)
Support the subscript operator for a Calendar.
Parameters:
self - a Calendar
field - a Calendar field, e.g. MONTH
Returns:
the value for the given field, e.g. FEBRUARY
See Also:
Calendar
Since:
1.7.3

getDateString

public static String getDateString(Date self)

Return a string representation of the 'day' portion of this date according to the locale-specific DateFormat.SHORT default format. For an "en_UK" system locale, this would be dd/MM/yy.

Note that a new DateFormat instance is created for every invocation of this method (for thread safety).

Parameters:
self - a Date
Returns:
a string representation of this date
See Also:
DateFormat.getDateInstance
DateFormat.SHORT
Since:
1.5.7

getDateTimeString

public static String getDateTimeString(Date self)

Return a string representation of the date and time time portion of this Date instance, according to the locale-specific format used by DateFormat. This method uses the DateFormat.SHORT preset for the day portion and DateFormat.MEDIUM for the time portion of the output string.

Note that a new DateFormat instance is created for every invocation of this method (for thread safety).

Parameters:
self - a Date
Returns:
a string representation of this date and time
See Also:
DateFormat.getDateTimeInstance
Since:
1.5.7

getTimeString

public static String getTimeString(Date self)

Return a string representation of the time portion of this date according to the locale-specific DateFormat.MEDIUM default format. For an "en_UK" system locale, this would be HH:MM:ss.

Note that a new DateFormat instance is created for every invocation of this method (for thread safety).

Parameters:
self - a Date
Returns:
a string representing the time portion of this date
See Also:
DateFormat.getTimeInstance
DateFormat.MEDIUM
Since:
1.5.7

minus

public static Date minus(Date self, int days)
Subtract a number of days from this date and returns the new date.
Parameters:
self - a Date
days - the number of days to subtract
Returns:
the new date
Since:
1.0

minus

public static Date minus(Date self, int days)
Subtract a number of days from this date and returns the new date.
Parameters:
self - a java.sql.Date
days - the number of days to subtract
Returns:
the new date
Since:
1.0

minus

public static Timestamp minus(Timestamp self, int days)
Subtract a number of days from this Timestamp and returns the new Timestamp object.
Parameters:
self - a Timestamp
days - the number of days to subtract
Returns:
the new Timestamp

minus

public static int minus(Calendar self, Calendar then)
Subtract another date from this one and return the number of days of the difference.

Date self = Date then + (Date self - Date then)

IOW, if self is before then the result is a negative value.

Parameters:
self - a Calendar
then - another Calendar
Returns:
number of days
Since:
1.6.0

minus

public static int minus(Date self, Date then)
Subtract another Date from this one and return the number of days of the difference.

Date self = Date then + (Date self - Date then)

IOW, if self is before then the result is a negative value.

Parameters:
self - a Date
then - another Date
Returns:
number of days
Since:
1.6.0

next

public static Date next(Date self)
Increment a Date by one day.
Parameters:
self - a Date
Returns:
the next days date
Since:
1.0

next

public static Calendar next(Calendar self)
Increment a Calendar by one day.
Parameters:
self - a Calendar
Returns:
a new Calendar set to the next day
Since:
1.8.7

next

public static Date next(Date self)
Increment a java.sql.Date by one day.
Parameters:
self - a java.sql.Date
Returns:
the next days date
Since:
1.0

plus

public static Date plus(Date self, int days)
Add a number of days to this date and returns the new date.
Parameters:
self - a Date
days - the number of days to increase
Returns:
the new date
Since:
1.0

plus

public static Date plus(Date self, int days)
Add a number of days to this date and returns the new date.
Parameters:
self - a java.sql.Date
days - the number of days to increase
Returns:
the new date
Since:
1.0

plus

public static Timestamp plus(Timestamp self, int days)
Add number of days to this Timestamp and returns the new Timestamp object.
Parameters:
self - a Timestamp
days - the number of days to increase
Returns:
the new Timestamp

previous

public static Calendar previous(Calendar self)
Decrement a Calendar by one day.
Parameters:
self - a Calendar
Returns:
a new Calendar set to the previous day
Since:
1.8.7

previous

public static Date previous(Date self)
Decrement a Date by one day.
Parameters:
self - a Date
Returns:
the previous days date
Since:
1.0

previous

public static Date previous(Date self)
Decrement a java.sql.Date by one day.
Parameters:
self - a java.sql.Date
Returns:
the previous days date
Since:
1.0

putAt

public static void putAt(Calendar self, int field, int value)
Support the subscript operator for mutating a Calendar. Example usage: 
 import static java.util.Calendar.*
 def cal = Calendar.instance
 cal[DAY_OF_WEEK] = MONDAY
 cal[MONTH] = MARCH
 println cal.time // A Monday in March
Parameters:
self - A Calendar
field - A Calendar field, e.g. MONTH
value - The value for the given field, e.g. FEBRUARY
See Also:
Calendar.set
Since:
1.7.3

putAt

public static void putAt(Date self, int field, int value)
Support the subscript operator for mutating a Date.
Parameters:
self - A Date
field - A Calendar field, e.g. MONTH
value - The value for the given field, e.g. FEBRUARY
See Also:
putAt(java.util.Calendar, int, int)
Calendar.set
Since:
1.7.3

set

public static void set(Calendar self, Map updates)
Support mutating a Calendar with a Map.

The map values are the normal values provided as the second parameter to java.util.Calendar#set(int, int). The keys can either be the normal fields values provided as the first parameter to that method or one of the following Strings:

Calendar index values
yearCalendar.YEAR
monthCalendar.MONTH
dateCalendar.DATE
dayOfMonthCalendar.DATE
hourOfDayCalendar.HOUR_OF_DAY
minuteCalendar.MINUTE
secondCalendar.SECOND
Example usage: 
 import static java.util.Calendar.*
 def cal = Calendar.instance
 def m = [:]
 m[YEAR] = 2010
 m[MONTH] = DECEMBER
 m[DATE] = 25
 cal.set(m)
 println cal.time // Christmas 2010

 cal.set(year:2011, month:DECEMBER, date:25)
 println cal.time // Christmas 2010
Parameters:
self - A Calendar
updates - A Map of Calendar keys and values
See Also:
Calendar.set
Calendar.set
Since:
1.7.3

set

public static void set(Date self, Map updates)
Support mutating a Date with a Map.

The map values are the normal values provided as the second parameter to java.util.Calendar#set(int, int). The keys can either be the normal fields values provided as the first parameter to that method or one of the following Strings:

Calendar index values
yearCalendar.YEAR
monthCalendar.MONTH
dateCalendar.DATE
dayOfMonthCalendar.DATE
hourOfDayCalendar.HOUR_OF_DAY
minuteCalendar.MINUTE
secondCalendar.SECOND
Example usage: 
 import static java.util.Calendar.YEAR
 def date = new Date()
 def nextYear = date[YEAR] + 1
 date.set(year: nextYear)
 println date
Parameters:
self - A Date
updates - A Map of Calendar keys and values
See Also:
Calendar.set
set(java.util.Calendar, java.util.Map)
Since:
1.7.3

toCalendar

public static Calendar toCalendar(Date self)
Convert a Date to a Calendar.
Parameters:
self - a Date
Returns:
a Calendar corresponding to the given Date
Since:
1.7.6

updated

public static Calendar updated(Calendar self, Map updates)
Legacy alias for copyWith. Will be deprecated and removed in future versions of Groovy.
See Also:
copyWith(java.util.Calendar, java.util.Map)
Since:
1.7.3

updated

public static Date updated(Date self, Map updates)
Legacy alias for copyWith. Will be deprecated and removed in future versions of Groovy.
See Also:
copyWith(java.util.Date, java.util.Map)
Since:
1.7.3

upto

public static void upto(Date self, Date to, Closure closure)
Iterates from this date up to the given date, inclusive, incrementing by one day each time.
Parameters:
self - a Date
to - another Date to go up to
closure - the closure to call
Since:
2.2

upto

public static void upto(Calendar self, Calendar to, Closure closure)
Iterates from the date represented by this calendar up to the date represented by the given calendar, inclusive, incrementing by one day each time.
Parameters:
self - a Calendar
to - another Calendar to go up to
closure - the closure to call
Since:
2.2

 

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