org.apache.logging.log4j.core.util.datetime

Interface DatePrinter

All Known Implementing Classes:

FastDateFormat, FastDatePrinter

public interface DatePrinter

DatePrinter is the "missing" interface for the format methods of DateFormat. You can obtain an object implementing this interface by using one of the FastDateFormat factory methods.

Warning: Since binary compatible methods may be added to this interface in any release, developers are not expected to implement this interface.

Copied and modified from Apache Commons Lang.

Since:

Apache Commons Lang 3.2

Method Summary

Modifier and Type	Method and Description
String	format(Calendar calendar) Formats a Calendar object.
<B extends Appendable> B	format(Calendar calendar, B buf) Formats a Calendar object into the supplied Appendable.
String	format(Date date) Formats a Date object using a GregorianCalendar.
<B extends Appendable> B	format(Date date, B buf) Formats a Date object into the supplied Appendable using a GregorianCalendar.
String	format(long millis) Formats a millisecond long value.
<B extends Appendable> B	format(long millis, B buf) Formats a millisecond long value into the supplied Appendable.
StringBuilder	format(Object obj, StringBuilder toAppendTo, FieldPosition pos) Formats a Date, Calendar or Long (milliseconds) object.
Locale	getLocale() Gets the locale used by this printer.
String	getPattern() Gets the pattern used by this printer.
TimeZone	getTimeZone() Gets the time zone used by this printer.

Method Detail

format

String format(long millis)

Formats a millisecond long value.

Parameters:

millis - the millisecond value to format

Returns:

the formatted string

Since:

2.1

format

String format(Date date)

Formats a Date object using a GregorianCalendar.

Parameters:

date - the date to format

Returns:

the formatted string

format

String format(Calendar calendar)

Formats a Calendar object.

The TimeZone set on the Calendar is only used to adjust the time offset. The TimeZone specified during the construction of the Parser will determine the TimeZone used in the formatted string.

Parameters:

calendar - the calendar to format.

Returns:

the formatted string

format

<B extends Appendable> B format(long millis,
                                B buf)

Formats a millisecond long value into the supplied Appendable.

Type Parameters:

B - the Appendable class type, usually StringBuilder or StringBuffer.

Parameters:

millis - the millisecond value to format

buf - the buffer to format into

Returns:

the specified string buffer

Since:

3.5

format

<B extends Appendable> B format(Date date,
                                B buf)

Formats a Date object into the supplied Appendable using a GregorianCalendar.

Type Parameters:

B - the Appendable class type, usually StringBuilder or StringBuffer.

Parameters:

date - the date to format

buf - the buffer to format into

Returns:

the specified string buffer

Since:

3.5

format

<B extends Appendable> B format(Calendar calendar,
                                B buf)

Formats a Calendar object into the supplied Appendable.

The TimeZone set on the Calendar is only used to adjust the time offset. The TimeZone specified during the construction of the Parser will determine the TimeZone used in the formatted string.

Type Parameters:

B - the Appendable class type, usually StringBuilder or StringBuffer.

Parameters:

calendar - the calendar to format

buf - the buffer to format into

Returns:

the specified string buffer

Since:

3.5

getPattern

String getPattern()

Gets the pattern used by this printer.

Returns:

the pattern, SimpleDateFormat compatible

getTimeZone

TimeZone getTimeZone()

Gets the time zone used by this printer.

This zone is always used for Date printing.

Returns:

the time zone

getLocale

Locale getLocale()

Gets the locale used by this printer.

Returns:

the locale

format

StringBuilder format(Object obj,
                     StringBuilder toAppendTo,
                     FieldPosition pos)

Formats a Date, Calendar or Long (milliseconds) object.

Parameters:

obj - the object to format

toAppendTo - the buffer to append to

pos - the position - ignored

Returns:

the buffer passed in

See Also:

DateFormat.format(Object, StringBuffer, FieldPosition)