FastDatePrinter (The Adobe AEM Quickstart and Web Application.)

java.lang.Object
- org.apache.commons.lang3.time.FastDatePrinter

All Implemented Interfaces:

java.io.Serializable, DatePrinter
```
public class FastDatePrinter
extends java.lang.Object
implements DatePrinter, java.io.Serializable
```
FastDatePrinter is a fast and thread-safe version of SimpleDateFormat.

To obtain a FastDatePrinter, use FastDateFormat.getInstance(String, TimeZone, Locale) or another variation of the factory methods of FastDateFormat.

Since FastDatePrinter is thread safe, you can use a static member instance:
private static final DatePrinter DATE_PRINTER = FastDateFormat.getInstance("yyyy-MM-dd");
This class can be used as a direct replacement to SimpleDateFormat in most formatting situations. This class is especially useful in multi-threaded server environments. SimpleDateFormat is not thread-safe in any JDK version, nor will it be as Sun have closed the bug/RFE.

Only formatting is supported by this class, but all patterns are compatible with SimpleDateFormat (except time zones and some year patterns - see below).

Java 1.4 introduced a new pattern letter, 'Z', to represent time zones in RFC822 format (eg. +0800 or -1100). This pattern letter can be used here (on all JDK versions).

In addition, the pattern 'ZZ' has been made to represent ISO 8601 extended format time zones (eg. +08:00 or -11:00). This introduces a minor incompatibility with Java 1.4, but at a gain of useful functionality.

Starting with JDK7, ISO 8601 support was added using the pattern 'X'. To maintain compatibility, 'ZZ' will continue to be supported, but using one of the 'X' formats is recommended.
Javadoc cites for the year pattern: For formatting, if the number of pattern letters is 2, the year is truncated to 2 digits; otherwise it is interpreted as a number. Starting with Java 1.7 a pattern of 'Y' or 'YYY' will be formatted as '2003', while it was '03' in former Java versions. FastDatePrinter implements the behavior of Java 7.

Since:

3.2

See Also:

FastDateParser, Serialized Form

Field Summary

Fields
Modifier and Type	Field and Description
`static int`	`FULL` FULL locale dependent date or time style.
`static int`	`LONG` LONG locale dependent date or time style.
`static int`	`MEDIUM` MEDIUM locale dependent date or time style.
`static int`	`SHORT` SHORT locale dependent date or time style.

Method Summary

All Methods Instance Methods Concrete Methods Deprecated Methods
Modifier and Type	Method and Description
`boolean`	`equals(java.lang.Object obj)` Compares two objects for equality.
`java.lang.String`	`format(java.util.Calendar calendar)` Formats a `Calendar` object.
`<B extends java.lang.Appendable> B`	`format(java.util.Calendar calendar, B buf)` Formats a `Calendar` object into the supplied `Appendable`.
`java.lang.StringBuffer`	`format(java.util.Calendar calendar, java.lang.StringBuffer buf)` Formats a `Calendar` object into the supplied `StringBuffer`.
`java.lang.String`	`format(java.util.Date date)` Formats a `Date` object using a `GregorianCalendar`.
`<B extends java.lang.Appendable> B`	`format(java.util.Date date, B buf)` Formats a `Date` object into the supplied `Appendable` using a `GregorianCalendar`.
`java.lang.StringBuffer`	`format(java.util.Date date, java.lang.StringBuffer buf)` Formats a `Date` object into the supplied `StringBuffer` using a `GregorianCalendar`.
`java.lang.String`	`format(long millis)` Formats a millisecond `long` value.
`<B extends java.lang.Appendable> B`	`format(long millis, B buf)` Formats a millisecond `long` value into the supplied `Appendable`.
`java.lang.StringBuffer`	`format(long millis, java.lang.StringBuffer buf)` Formats a millisecond `long` value into the supplied `StringBuffer`.
`java.lang.StringBuffer`	`format(java.lang.Object obj, java.lang.StringBuffer toAppendTo, java.text.FieldPosition pos)` Deprecated. Use {`format(Date)`, {`format(Calendar)`, {`format(long)`, or {`format(Object)`
`java.util.Locale`	`getLocale()` Gets the locale used by this printer.
`int`	`getMaxLengthEstimate()` Gets an estimate for the maximum string length that the formatter will produce.
`java.lang.String`	`getPattern()` Gets the pattern used by this printer.
`java.util.TimeZone`	`getTimeZone()` Gets the time zone used by this printer.
`int`	`hashCode()` Returns a hash code compatible with equals.
`java.lang.String`	`toString()` Gets a debugging string version of this formatter.

Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait

- Field Detail
  - FULL
```
public static final int FULL
```
    FULL locale dependent date or time style.
    
    See Also:
    
    Constant Field Values
  - LONG
```
public static final int LONG
```
    LONG locale dependent date or time style.
    
    See Also:
    
    Constant Field Values
  - MEDIUM
```
public static final int MEDIUM
```
    MEDIUM locale dependent date or time style.
    
    See Also:
    
    Constant Field Values
  - SHORT
```
public static final int SHORT
```
    SHORT locale dependent date or time style.
    
    See Also:
    
    Constant Field Values
- Method Detail
  - format
```
@Deprecated
public java.lang.StringBuffer format(java.lang.Object obj,
                                                 java.lang.StringBuffer toAppendTo,
                                                 java.text.FieldPosition pos)
```
    Deprecated. Use {format(Date), {format(Calendar), {format(long), or {format(Object)
    
    Formats a Date, Calendar or Long (milliseconds) object.
    
    Specified by:
    
    format in interface DatePrinter
    
    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)
  - format
```
public java.lang.String format(long millis)
```
    Description copied from interface: DatePrinter
    
    Formats a millisecond long value.
    
    Specified by:
    
    format in interface DatePrinter
    
    Parameters:
    
    millis - the millisecond value to format
    
    Returns:
    
    the formatted string
  - format
```
public java.lang.String format(java.util.Date date)
```
    Description copied from interface: DatePrinter
    
    Formats a Date object using a GregorianCalendar.
    
    Specified by:
    
    format in interface DatePrinter
    
    Parameters:
    
    date - the date to format
    
    Returns:
    
    the formatted string
  - format
```
public java.lang.String format(java.util.Calendar calendar)
```
    Description copied from interface: DatePrinter
    
    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.
    
    Specified by:
    
    format in interface DatePrinter
    
    Parameters:
    
    calendar - the calendar to format.
    
    Returns:
    
    the formatted string
  - format
```
public java.lang.StringBuffer format(long millis,
                                     java.lang.StringBuffer buf)
```
    Description copied from interface: DatePrinter
    
    Formats a millisecond long value into the supplied StringBuffer.
    
    Specified by:
    
    format in interface DatePrinter
    
    Parameters:
    
    millis - the millisecond value to format
    
    buf - the buffer to format into
    
    Returns:
    
    the specified string buffer
  - format
```
public java.lang.StringBuffer format(java.util.Date date,
                                     java.lang.StringBuffer buf)
```
    Description copied from interface: DatePrinter
    
    Formats a Date object into the supplied StringBuffer using a GregorianCalendar.
    
    Specified by:
    
    format in interface DatePrinter
    
    Parameters:
    
    date - the date to format
    
    buf - the buffer to format into
    
    Returns:
    
    the specified string buffer
  - format
```
public java.lang.StringBuffer format(java.util.Calendar calendar,
                                     java.lang.StringBuffer buf)
```
    Description copied from interface: DatePrinter
    
    Formats a Calendar object into the supplied StringBuffer.
    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.
    
    Specified by:
    
    format in interface DatePrinter
    
    Parameters:
    
    calendar - the calendar to format
    
    buf - the buffer to format into
    
    Returns:
    
    the specified string buffer
  - format
```
public <B extends java.lang.Appendable> B format(long millis,
                                                 B buf)
```
    Description copied from interface: DatePrinter
    
    Formats a millisecond long value into the supplied Appendable.
    
    Specified by:
    
    format in interface DatePrinter
    
    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
  - format
```
public <B extends java.lang.Appendable> B format(java.util.Date date,
                                                 B buf)
```
    Description copied from interface: DatePrinter
    
    Formats a Date object into the supplied Appendable using a GregorianCalendar.
    
    Specified by:
    
    format in interface DatePrinter
    
    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
  - format
```
public <B extends java.lang.Appendable> B format(java.util.Calendar calendar,
                                                 B buf)
```
    Description copied from interface: DatePrinter
    
    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.
    
    Specified by:
    
    format in interface DatePrinter
    
    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
  - getPattern
```
public java.lang.String getPattern()
```
    Description copied from interface: DatePrinter
    
    Gets the pattern used by this printer.
    
    Specified by:
    
    getPattern in interface DatePrinter
    
    Returns:
    
    the pattern, SimpleDateFormat compatible
  - getTimeZone
```
public java.util.TimeZone getTimeZone()
```
    Description copied from interface: DatePrinter
    
    Gets the time zone used by this printer.
    
    This zone is always used for Date printing.
    
    Specified by:
    
    getTimeZone in interface DatePrinter
    
    Returns:
    
    the time zone
  - getLocale
```
public java.util.Locale getLocale()
```
    Description copied from interface: DatePrinter
    
    Gets the locale used by this printer.
    
    Specified by:
    
    getLocale in interface DatePrinter
    
    Returns:
    
    the locale
  - getMaxLengthEstimate
```
public int getMaxLengthEstimate()
```
    Gets an estimate for the maximum string length that the formatter will produce.
    
    The actual formatted length will almost always be less than or equal to this amount.
    
    Returns:
    
    the maximum formatted length
  - equals
```
public boolean equals(java.lang.Object obj)
```
    Compares two objects for equality.
    
    Overrides:
    
    equals in class java.lang.Object
    
    Parameters:
    
    obj - the object to compare to
    
    Returns:
    
    true if equal
  - hashCode
```
public int hashCode()
```
    Returns a hash code compatible with equals.
    
    Overrides:
    
    hashCode in class java.lang.Object
    
    Returns:
    
    a hash code compatible with equals
  - toString
```
public java.lang.String toString()
```
    Gets a debugging string version of this formatter.
    
    Overrides:
    
    toString in class java.lang.Object
    
    Returns:
    
    a debugging string

Class FastDatePrinter

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

FULL

LONG

MEDIUM

SHORT

Method Detail

format

format

format

format

format

format

format

format

format

format

getPattern

getTimeZone

getLocale

getMaxLengthEstimate

equals

hashCode

toString