com.univocity.parsers.conversions
Class CalendarConversion

java.lang.Object
  com.univocity.parsers.conversions.NullConversion<String,T>
      com.univocity.parsers.conversions.ObjectConversion<Calendar>
          com.univocity.parsers.conversions.CalendarConversion

All Implemented Interfaces:

Conversion<String,Calendar>, FormattedConversion<SimpleDateFormat>

public class CalendarConversion
extends ObjectConversion<Calendar>
implements FormattedConversion<SimpleDateFormat>

Converts Strings to instances of Calendar and vice versa.

This class supports multiple date formats. For example, you can define conversions from dates represented by different Strings such as "2001/05/02 and Dec/2013".

The reverse conversion from a Calendar to String (in revert(Calendar) will return a formatted String using the date pattern provided in this class constructor

The date patterns must follows the pattern rules of SimpleDateFormat

Author:

uniVocity Software Pty Ltd - parsers@univocity.com

See Also:

SimpleDateFormat

Constructor Summary

CalendarConversion(Calendar valueIfStringIsNull, String valueIfObjectIsNull, String... dateFormats)
Defines a conversion from String to Calendar using a sequence of acceptable date patterns.

CalendarConversion(Locale locale, Calendar valueIfStringIsNull, String valueIfObjectIsNull, String... dateFormats)
Defines a conversion from String to Calendar using a sequence of acceptable date patterns.

CalendarConversion(Locale locale, String... dateFormats)
Defines a conversion from String to Calendar using a sequence of acceptable date patterns.

CalendarConversion(String... dateFormats)
Defines a conversion from String to Calendar using a sequence of acceptable date patterns.

Method Summary

protected Calendar	fromString(String input) Converts a formatted date String to an instance of Calendar.
SimpleDateFormat[]	getFormatterObjects() Returns the formatter objects
String	revert(Calendar input) Converts Calendar to a formatted date String.

Methods inherited from class com.univocity.parsers.conversions.ObjectConversion

execute, fromInput, getValueIfObjectIsNull, getValueIfStringIsNull, setValueIfObjectIsNull, setValueIfStringIsNull, undo

Methods inherited from class com.univocity.parsers.conversions.NullConversion

getValueOnNullInput, getValueOnNullOutput, setValueOnNullInput, setValueOnNullOutput

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CalendarConversion

public CalendarConversion(Locale locale,
                          Calendar valueIfStringIsNull,
                          String valueIfObjectIsNull,
                          String... dateFormats)

Defines a conversion from String to Calendar using a sequence of acceptable date patterns. This constructor assumes the output of a conversion should be null when input is null

Parameters:

locale - the Locale that determines how the date mask should be formatted.

valueIfStringIsNull - default Calendar value to be returned when the input String is null. Used when ObjectConversion.execute(String) is invoked.

valueIfObjectIsNull - default String value to be returned when a Calendar input is null. Used when revert(Calendar) is invoked.

dateFormats - list of acceptable date patterns The first pattern in this sequence will be used to convert a Calendar into a String in revert(Calendar).

CalendarConversion

public CalendarConversion(Calendar valueIfStringIsNull,
                          String valueIfObjectIsNull,
                          String... dateFormats)

Defines a conversion from String to Calendar using a sequence of acceptable date patterns. This constructor assumes the output of a conversion should be null when input is null

Parameters:

valueIfStringIsNull - default Calendar value to be returned when the input String is null. Used when ObjectConversion.execute(String) is invoked.

valueIfObjectIsNull - default String value to be returned when a Calendar input is null. Used when revert(Calendar) is invoked.

dateFormats - list of acceptable date patterns The first pattern in this sequence will be used to convert a Calendar into a String in revert(Calendar).

CalendarConversion

public CalendarConversion(Locale locale,
                          String... dateFormats)

Defines a conversion from String to Calendar using a sequence of acceptable date patterns. This constructor assumes the output of a conversion should be null when input is null

Parameters:

locale - the Locale that determines how the date mask should be formatted.

dateFormats - list of acceptable date patterns The first pattern in this sequence will be used to convert a Calendar into a String in revert(Calendar).

CalendarConversion

public CalendarConversion(String... dateFormats)

Defines a conversion from String to Calendar using a sequence of acceptable date patterns. This constructor assumes the output of a conversion should be null when input is null

Parameters:

dateFormats - list of acceptable date patterns The first pattern in this sequence will be used to convert a Calendar into a String in revert(Calendar).

Method Detail

revert

public String revert(Calendar input)

Converts Calendar to a formatted date String.

The pattern used to generate the formatted date is the first date pattern provided in the constructor of this class

Specified by:

revert in interface Conversion<String,Calendar>

Overrides:

revert in class ObjectConversion<Calendar>

Parameters:

input - the Calendar to be converted to a String

Returns:

a formatted date String representing the date provided by the given Calendar, or the value of ObjectConversion.getValueIfObjectIsNull() if the Calendar parameter is null.

fromString

protected Calendar fromString(String input)

Converts a formatted date String to an instance of Calendar.

The pattern in the formatted date must match one of the date patterns provided in the constructor of this class.

Specified by:

fromString in class ObjectConversion<Calendar>

Parameters:

input - the String containing a formatted date which must be converted to a Calendar

Returns:

the Calendar instance containing the date information represented by the given String, or the value of ObjectConversion.getValueIfStringIsNull() if the String input is null.

getFormatterObjects

public SimpleDateFormat[] getFormatterObjects()

Description copied from interface: FormattedConversion

Returns the formatter objects

Specified by:

getFormatterObjects in interface FormattedConversion<SimpleDateFormat>

Returns:

the formatter objects used to apply formatting to values to generate formatted Strings, and parsing formatted Strings into values