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java.lang.Object org.joda.time.format.DateTimeFormatterBuilder
Factory that creates complex instances of DateTimeFormatter via method calls.
Datetime formatting is performed by the DateTimeFormatter
class.
Three classes provide factory methods to create formatters, and this is one.
The others are DateTimeFormat
and ISODateTimeFormat
.
DateTimeFormatterBuilder is used for constructing formatters which are then used to print or parse. The formatters are built by appending specific fields or other formatters to an instance of this builder.
For example, a formatter that prints month and year, like "January 1970", can be constructed as follows:
DateTimeFormatter monthAndYear = new DateTimeFormatterBuilder() .appendMonthOfYearText() .appendLiteral(' ') .appendYear(4, 4) .toFormatter();
DateTimeFormatterBuilder itself is mutable and not thread-safe, but the formatters that it builds are thread-safe and immutable.
DateTimeFormat
,
ISODateTimeFormat
Constructor Summary | |
DateTimeFormatterBuilder()
Creates a DateTimeFormatterBuilder. |
Method Summary | |
DateTimeFormatterBuilder |
append(DateTimeFormatter formatter)
Appends another formatter. |
DateTimeFormatterBuilder |
append(DateTimeParser parser)
Appends just a parser. |
DateTimeFormatterBuilder |
append(DateTimePrinter printer)
Appends just a printer. |
DateTimeFormatterBuilder |
append(DateTimePrinter printer,
DateTimeParser parser)
Appends a printer/parser pair. |
DateTimeFormatterBuilder |
append(DateTimePrinter printer,
DateTimeParser[] parsers)
Appends a printer and a set of matching parsers. |
DateTimeFormatterBuilder |
appendCenturyOfEra(int minDigits,
int maxDigits)
Instructs the printer to emit a numeric century of era field. |
DateTimeFormatterBuilder |
appendClockhourOfDay(int minDigits)
Instructs the printer to emit a numeric clockhourOfDay field. |
DateTimeFormatterBuilder |
appendClockhourOfHalfday(int minDigits)
Instructs the printer to emit a numeric clockhourOfHalfday field. |
DateTimeFormatterBuilder |
appendDayOfMonth(int minDigits)
Instructs the printer to emit a numeric dayOfMonth field. |
DateTimeFormatterBuilder |
appendDayOfWeek(int minDigits)
Instructs the printer to emit a numeric dayOfWeek field. |
DateTimeFormatterBuilder |
appendDayOfWeekShortText()
Instructs the printer to emit a short locale-specific dayOfWeek text. |
DateTimeFormatterBuilder |
appendDayOfWeekText()
Instructs the printer to emit a locale-specific dayOfWeek text. |
DateTimeFormatterBuilder |
appendDayOfYear(int minDigits)
Instructs the printer to emit a numeric dayOfYear field. |
DateTimeFormatterBuilder |
appendDecimal(DateTimeFieldType fieldType,
int minDigits,
int maxDigits)
Instructs the printer to emit a field value as a decimal number, and the parser to expect an unsigned decimal number. |
DateTimeFormatterBuilder |
appendEraText()
Instructs the printer to emit a locale-specific era text (BC/AD), and the parser to expect it. |
DateTimeFormatterBuilder |
appendFixedDecimal(DateTimeFieldType fieldType,
int numDigits)
Instructs the printer to emit a field value as a fixed-width decimal number (smaller numbers will be left-padded with zeros), and the parser to expect an unsigned decimal number with the same fixed width. |
DateTimeFormatterBuilder |
appendFixedSignedDecimal(DateTimeFieldType fieldType,
int numDigits)
Instructs the printer to emit a field value as a fixed-width decimal number (smaller numbers will be left-padded with zeros), and the parser to expect an signed decimal number with the same fixed width. |
DateTimeFormatterBuilder |
appendFraction(DateTimeFieldType fieldType,
int minDigits,
int maxDigits)
Instructs the printer to emit a remainder of time as a decimal fraction, sans decimal point. |
DateTimeFormatterBuilder |
appendFractionOfDay(int minDigits,
int maxDigits)
|
DateTimeFormatterBuilder |
appendFractionOfHour(int minDigits,
int maxDigits)
|
DateTimeFormatterBuilder |
appendFractionOfMinute(int minDigits,
int maxDigits)
|
DateTimeFormatterBuilder |
appendFractionOfSecond(int minDigits,
int maxDigits)
|
DateTimeFormatterBuilder |
appendHalfdayOfDayText()
Instructs the printer to emit a locale-specific AM/PM text, and the parser to expect it. |
DateTimeFormatterBuilder |
appendHourOfDay(int minDigits)
Instructs the printer to emit a numeric hourOfDay field. |
DateTimeFormatterBuilder |
appendHourOfHalfday(int minDigits)
Instructs the printer to emit a numeric hourOfHalfday field. |
DateTimeFormatterBuilder |
appendLiteral(char c)
Instructs the printer to emit a specific character, and the parser to expect it. |
DateTimeFormatterBuilder |
appendLiteral(String text)
Instructs the printer to emit specific text, and the parser to expect it. |
DateTimeFormatterBuilder |
appendMillisOfDay(int minDigits)
Instructs the printer to emit a numeric millisOfDay field. |
DateTimeFormatterBuilder |
appendMillisOfSecond(int minDigits)
Instructs the printer to emit a numeric millisOfSecond field. |
DateTimeFormatterBuilder |
appendMinuteOfDay(int minDigits)
Instructs the printer to emit a numeric minuteOfDay field. |
DateTimeFormatterBuilder |
appendMinuteOfHour(int minDigits)
Instructs the printer to emit a numeric minuteOfHour field. |
DateTimeFormatterBuilder |
appendMonthOfYear(int minDigits)
Instructs the printer to emit a numeric monthOfYear field. |
DateTimeFormatterBuilder |
appendMonthOfYearShortText()
Instructs the printer to emit a locale-specific monthOfYear text. |
DateTimeFormatterBuilder |
appendMonthOfYearText()
Instructs the printer to emit a short locale-specific monthOfYear text. |
DateTimeFormatterBuilder |
appendOptional(DateTimeParser parser)
Appends just a parser element which is optional. |
DateTimeFormatterBuilder |
appendPattern(String pattern)
Calls upon DateTimeFormat to parse the pattern and append the
results into this builder. |
DateTimeFormatterBuilder |
appendSecondOfDay(int minDigits)
Instructs the printer to emit a numeric secondOfDay field. |
DateTimeFormatterBuilder |
appendSecondOfMinute(int minDigits)
Instructs the printer to emit a numeric secondOfMinute field. |
DateTimeFormatterBuilder |
appendShortText(DateTimeFieldType fieldType)
Instructs the printer to emit a field value as short text, and the parser to expect text. |
DateTimeFormatterBuilder |
appendSignedDecimal(DateTimeFieldType fieldType,
int minDigits,
int maxDigits)
Instructs the printer to emit a field value as a decimal number, and the parser to expect a signed decimal number. |
DateTimeFormatterBuilder |
appendText(DateTimeFieldType fieldType)
Instructs the printer to emit a field value as text, and the parser to expect text. |
DateTimeFormatterBuilder |
appendTimeZoneId()
Instructs the printer to emit the identifier of the time zone. |
DateTimeFormatterBuilder |
appendTimeZoneName()
Instructs the printer to emit a locale-specific time zone name. |
DateTimeFormatterBuilder |
appendTimeZoneOffset(String zeroOffsetText,
boolean showSeparators,
int minFields,
int maxFields)
Instructs the printer to emit text and numbers to display time zone offset from UTC. |
DateTimeFormatterBuilder |
appendTimeZoneShortName()
Instructs the printer to emit a short locale-specific time zone name. |
DateTimeFormatterBuilder |
appendTwoDigitWeekyear(int pivot)
Instructs the printer to emit a numeric weekyear field which always prints and parses two digits. |
DateTimeFormatterBuilder |
appendTwoDigitWeekyear(int pivot,
boolean lenientParse)
Instructs the printer to emit a numeric weekyear field which always prints two digits. |
DateTimeFormatterBuilder |
appendTwoDigitYear(int pivot)
Instructs the printer to emit a numeric year field which always prints and parses two digits. |
DateTimeFormatterBuilder |
appendTwoDigitYear(int pivot,
boolean lenientParse)
Instructs the printer to emit a numeric year field which always prints two digits. |
DateTimeFormatterBuilder |
appendWeekOfWeekyear(int minDigits)
Instructs the printer to emit a numeric weekOfWeekyear field. |
DateTimeFormatterBuilder |
appendWeekyear(int minDigits,
int maxDigits)
Instructs the printer to emit a numeric weekyear field. |
DateTimeFormatterBuilder |
appendYear(int minDigits,
int maxDigits)
Instructs the printer to emit a numeric year field. |
DateTimeFormatterBuilder |
appendYearOfCentury(int minDigits,
int maxDigits)
Instructs the printer to emit a numeric year of century field. |
DateTimeFormatterBuilder |
appendYearOfEra(int minDigits,
int maxDigits)
Instructs the printer to emit a numeric yearOfEra field. |
boolean |
canBuildFormatter()
Returns true if toFormatter can be called without throwing an UnsupportedOperationException. |
boolean |
canBuildParser()
Returns true if toParser can be called without throwing an UnsupportedOperationException. |
boolean |
canBuildPrinter()
Returns true if toPrinter can be called without throwing an UnsupportedOperationException. |
void |
clear()
Clears out all the appended elements, allowing this builder to be reused. |
DateTimeFormatter |
toFormatter()
Constructs a DateTimeFormatter using all the appended elements. |
DateTimeParser |
toParser()
Internal method to create a DateTimeParser instance using all the appended elements. |
DateTimePrinter |
toPrinter()
Internal method to create a DateTimePrinter instance using all the appended elements. |
Methods inherited from class java.lang.Object |
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
public DateTimeFormatterBuilder()
Method Detail |
public DateTimeFormatter toFormatter()
This is the main method used by applications at the end of the build process to create a usable formatter.
Subsequent changes to this builder do not affect the returned formatter.
The returned formatter may not support both printing and parsing.
The methods DateTimeFormatter.isPrinter()
and
DateTimeFormatter.isParser()
will help you determine the state
of the formatter.
UnsupportedOperationException
- if neither printing nor parsing is supportedpublic DateTimePrinter toPrinter()
Most applications will not use this method.
If you want a printer in an application, call toFormatter()
and just use the printing API.
Subsequent changes to this builder do not affect the returned printer.
UnsupportedOperationException
- if printing is not supportedpublic DateTimeParser toParser()
Most applications will not use this method.
If you want a parser in an application, call toFormatter()
and just use the parsing API.
Subsequent changes to this builder do not affect the returned parser.
UnsupportedOperationException
- if parsing is not supportedpublic boolean canBuildFormatter()
public boolean canBuildPrinter()
public boolean canBuildParser()
public void clear()
public DateTimeFormatterBuilder append(DateTimeFormatter formatter)
formatter
- the formatter to add
IllegalArgumentException
- if formatter is null or of an invalid typepublic DateTimeFormatterBuilder append(DateTimePrinter printer)
printer
- the printer to add
IllegalArgumentException
- if printer is null or of an invalid typepublic DateTimeFormatterBuilder append(DateTimeParser parser)
parser
- the parser to add
IllegalArgumentException
- if parser is null or of an invalid typepublic DateTimeFormatterBuilder append(DateTimePrinter printer, DateTimeParser parser)
printer
- the printer to addparser
- the parser to add
IllegalArgumentException
- if printer or parser is null or of an invalid typepublic DateTimeFormatterBuilder append(DateTimePrinter printer, DateTimeParser[] parsers)
Only the printer is optional. In addtion, it is illegal for any but the last of the parser array elements to be null. If the last element is null, this represents the empty parser. The presence of an empty parser indicates that the entire array of parse formats is optional.
printer
- the printer to addparsers
- the parsers to add
IllegalArgumentException
- if any printer or parser is of an invalid type
IllegalArgumentException
- if any parser element but the last is nullpublic DateTimeFormatterBuilder appendOptional(DateTimeParser parser)
IllegalArgumentException
- if parser is null or of an invalid typepublic DateTimeFormatterBuilder appendLiteral(char c)
public DateTimeFormatterBuilder appendLiteral(String text)
IllegalArgumentException
- if text is nullpublic DateTimeFormatterBuilder appendDecimal(DateTimeFieldType fieldType, int minDigits, int maxDigits)
fieldType
- type of field to appendminDigits
- minumum number of digits to printmaxDigits
- maximum number of digits to parse, or the estimated
maximum number of digits to print
IllegalArgumentException
- if field type is nullpublic DateTimeFormatterBuilder appendFixedDecimal(DateTimeFieldType fieldType, int numDigits)
fieldType
- type of field to appendnumDigits
- the exact number of digits to parse or print, except if
printed value requires more digits
IllegalArgumentException
- if field type is null or if numDigits <= 0
public DateTimeFormatterBuilder appendSignedDecimal(DateTimeFieldType fieldType, int minDigits, int maxDigits)
fieldType
- type of field to appendminDigits
- minumum number of digits to printmaxDigits
- maximum number of digits to parse, or the estimated
maximum number of digits to print
IllegalArgumentException
- if field type is nullpublic DateTimeFormatterBuilder appendFixedSignedDecimal(DateTimeFieldType fieldType, int numDigits)
fieldType
- type of field to appendnumDigits
- the exact number of digits to parse or print, except if
printed value requires more digits
IllegalArgumentException
- if field type is null or if numDigits <= 0
public DateTimeFormatterBuilder appendText(DateTimeFieldType fieldType)
fieldType
- type of field to append
IllegalArgumentException
- if field type is nullpublic DateTimeFormatterBuilder appendShortText(DateTimeFieldType fieldType)
fieldType
- type of field to append
IllegalArgumentException
- if field type is nullpublic DateTimeFormatterBuilder appendFraction(DateTimeFieldType fieldType, int minDigits, int maxDigits)
fieldType
- type of field to appendminDigits
- minumum number of digits to print.maxDigits
- maximum number of digits to print or parse.
IllegalArgumentException
- if field type is nullpublic DateTimeFormatterBuilder appendFractionOfSecond(int minDigits, int maxDigits)
minDigits
- minumum number of digits to printmaxDigits
- maximum number of digits to print or parse
public DateTimeFormatterBuilder appendFractionOfMinute(int minDigits, int maxDigits)
minDigits
- minumum number of digits to printmaxDigits
- maximum number of digits to print or parse
public DateTimeFormatterBuilder appendFractionOfHour(int minDigits, int maxDigits)
minDigits
- minumum number of digits to printmaxDigits
- maximum number of digits to print or parse
public DateTimeFormatterBuilder appendFractionOfDay(int minDigits, int maxDigits)
minDigits
- minumum number of digits to printmaxDigits
- maximum number of digits to print or parse
public DateTimeFormatterBuilder appendMillisOfSecond(int minDigits)
This method will append a field that prints a three digit value.
During parsing the value that is parsed is assumed to be three digits.
If less than three digits are present then they will be counted as the
smallest parts of the millisecond. This is probably not what you want
if you are using the field as a fraction. Instead, a fractional
millisecond should be produced using appendFractionOfSecond(int, int)
.
minDigits
- minumum number of digits to print
public DateTimeFormatterBuilder appendMillisOfDay(int minDigits)
minDigits
- minumum number of digits to print
public DateTimeFormatterBuilder appendSecondOfMinute(int minDigits)
minDigits
- minumum number of digits to print
public DateTimeFormatterBuilder appendSecondOfDay(int minDigits)
minDigits
- minumum number of digits to print
public DateTimeFormatterBuilder appendMinuteOfHour(int minDigits)
minDigits
- minumum number of digits to print
public DateTimeFormatterBuilder appendMinuteOfDay(int minDigits)
minDigits
- minumum number of digits to print
public DateTimeFormatterBuilder appendHourOfDay(int minDigits)
minDigits
- minumum number of digits to print
public DateTimeFormatterBuilder appendClockhourOfDay(int minDigits)
minDigits
- minumum number of digits to print
public DateTimeFormatterBuilder appendHourOfHalfday(int minDigits)
minDigits
- minumum number of digits to print
public DateTimeFormatterBuilder appendClockhourOfHalfday(int minDigits)
minDigits
- minumum number of digits to print
public DateTimeFormatterBuilder appendDayOfWeek(int minDigits)
minDigits
- minumum number of digits to print
public DateTimeFormatterBuilder appendDayOfMonth(int minDigits)
minDigits
- minumum number of digits to print
public DateTimeFormatterBuilder appendDayOfYear(int minDigits)
minDigits
- minumum number of digits to print
public DateTimeFormatterBuilder appendWeekOfWeekyear(int minDigits)
minDigits
- minumum number of digits to print
public DateTimeFormatterBuilder appendWeekyear(int minDigits, int maxDigits)
minDigits
- minumum number of digits to printmaxDigits
- maximum number of digits to parse, or the estimated
maximum number of digits to print
public DateTimeFormatterBuilder appendMonthOfYear(int minDigits)
minDigits
- minumum number of digits to print
public DateTimeFormatterBuilder appendYear(int minDigits, int maxDigits)
minDigits
- minumum number of digits to printmaxDigits
- maximum number of digits to parse, or the estimated
maximum number of digits to print
public DateTimeFormatterBuilder appendTwoDigitYear(int pivot)
(pivot - 50) .. (pivot + 49)
.
pivot supported range 00 is 20 is 40 is 60 is 80 is --------------------------------------------------------------- 1950 1900..1999 1900 1920 1940 1960 1980 1975 1925..2024 2000 2020 1940 1960 1980 2000 1950..2049 2000 2020 2040 1960 1980 2025 1975..2074 2000 2020 2040 2060 1980 2050 2000..2099 2000 2020 2040 2060 2080
pivot
- pivot year to use when parsing
public DateTimeFormatterBuilder appendTwoDigitYear(int pivot, boolean lenientParse)
(pivot - 50) .. (pivot + 49)
. If
parse is instructed to be lenient and the digit count is not two, it is
treated as an absolute year. With lenient parsing, specifying a positive
or negative sign before the year also makes it absolute.
pivot
- pivot year to use when parsinglenientParse
- when true, if digit count is not two, it is treated
as an absolute year
public DateTimeFormatterBuilder appendTwoDigitWeekyear(int pivot)
(pivot - 50) .. (pivot + 49)
.
pivot supported range 00 is 20 is 40 is 60 is 80 is --------------------------------------------------------------- 1950 1900..1999 1900 1920 1940 1960 1980 1975 1925..2024 2000 2020 1940 1960 1980 2000 1950..2049 2000 2020 2040 1960 1980 2025 1975..2074 2000 2020 2040 2060 1980 2050 2000..2099 2000 2020 2040 2060 2080
pivot
- pivot weekyear to use when parsing
public DateTimeFormatterBuilder appendTwoDigitWeekyear(int pivot, boolean lenientParse)
(pivot - 50) .. (pivot + 49)
. If
parse is instructed to be lenient and the digit count is not two, it is
treated as an absolute weekyear. With lenient parsing, specifying a positive
or negative sign before the weekyear also makes it absolute.
pivot
- pivot weekyear to use when parsinglenientParse
- when true, if digit count is not two, it is treated
as an absolute weekyear
public DateTimeFormatterBuilder appendYearOfEra(int minDigits, int maxDigits)
minDigits
- minumum number of digits to printmaxDigits
- maximum number of digits to parse, or the estimated
maximum number of digits to print
public DateTimeFormatterBuilder appendYearOfCentury(int minDigits, int maxDigits)
minDigits
- minumum number of digits to printmaxDigits
- maximum number of digits to parse, or the estimated
maximum number of digits to print
public DateTimeFormatterBuilder appendCenturyOfEra(int minDigits, int maxDigits)
minDigits
- minumum number of digits to printmaxDigits
- maximum number of digits to parse, or the estimated
maximum number of digits to print
public DateTimeFormatterBuilder appendHalfdayOfDayText()
public DateTimeFormatterBuilder appendDayOfWeekText()
public DateTimeFormatterBuilder appendDayOfWeekShortText()
public DateTimeFormatterBuilder appendMonthOfYearText()
public DateTimeFormatterBuilder appendMonthOfYearShortText()
public DateTimeFormatterBuilder appendEraText()
public DateTimeFormatterBuilder appendTimeZoneName()
public DateTimeFormatterBuilder appendTimeZoneShortName()
public DateTimeFormatterBuilder appendTimeZoneId()
public DateTimeFormatterBuilder appendTimeZoneOffset(String zeroOffsetText, boolean showSeparators, int minFields, int maxFields)
zeroOffsetText
- Text to use if time zone offset is zero. If
null, offset is always shown.showSeparators
- If true, prints ':' separator before minute and
second field and prints '.' separator before fraction field.minFields
- minimum number of fields to print, stopping when no
more precision is required. 1=hours, 2=minutes, 3=seconds, 4=fractionmaxFields
- maximum number of fields to print
public DateTimeFormatterBuilder appendPattern(String pattern)
DateTimeFormat
to parse the pattern and append the
results into this builder.
pattern
- pattern specification
IllegalArgumentException
- if the pattern is invalidDateTimeFormat
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