org.zkoss.text
Class DateFormats

java.lang.Object
  extended by org.zkoss.text.DateFormats

public class DateFormats
extends java.lang.Object

DateFormat relevant utilities.

Author:
tomyeh

Constructor Summary
DateFormats()
           
 
Method Summary
static java.lang.String format(java.util.Date d, boolean dateOnly)
          Formats a Date object based on the current Locale and the default date format (DateFormat.DEFAULT.
static java.lang.String getDateFormat(int style, java.util.Locale locale, java.lang.String defaultFormat)
          Returns the current date format; never null.
static java.lang.String getDateTimeFormat(int dateStyle, int timeStyle, java.util.Locale locale, java.lang.String defaultFormat)
          Returns the current date/time format; never null.
static DateFormatInfo getLocalFormatInfo()
          Returns the info of date/time format for the current thread, or null if not set.
static java.lang.String getTimeFormat(int style, java.util.Locale locale, java.lang.String defaultFormat)
          Returns the current time format; never null.
static java.util.Date parse(java.lang.String s, boolean dateOnly)
          Parses a string, that is formatted by format(java.util.Date, boolean), to a date.
static DateFormatInfo setLocalFormatInfo(DateFormatInfo info)
          Sets the info of date/time format for the current thread.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

DateFormats

public DateFormats()
Method Detail

setLocalFormatInfo

public static DateFormatInfo setLocalFormatInfo(DateFormatInfo info)
Sets the info of date/time format for the current thread. It does not have effect on other threads.

When Invoking this method under a thread, remember to clean up the setting upon completing each request.

DateFormatInfo old = DateFormats.setLocalFormatFormatInfo(info);
try { 
  ...
} finally {
  DateFormats.setLocalFormatInfo(old);
}

Parameters:
info - the format info. It could be null (and the JVM's default is used).
Returns:
the previous format info being set, or null if not set.
Since:
5.0.7

getLocalFormatInfo

public static DateFormatInfo getLocalFormatInfo()
Returns the info of date/time format for the current thread, or null if not set.

Since:
5.0.7

getDateFormat

public static java.lang.String getDateFormat(int style,
                                             java.util.Locale locale,
                                             java.lang.String defaultFormat)
Returns the current date format; never null.

If a format info is set by setLocalFormatInfo(org.zkoss.text.DateFormatInfo), DateFormatInfo.getDateFormat(int, java.util.Locale) of the info will be called first. If no info is set or the info returns null, java.text.DateFormat.getDateInstance(style, locale) will be called instead. If no format is found and the value of defaultFormat is not null, defaultFormat will be returned. Otherwise, "M/d/yy" is returned.

Parameters:
style - the giving formatting style. For example, DateFormat.SHORT for "M/d/yy" in the US locale.
locale - the locale. If null, Locales.getCurrent() is assumed.
defaultFormat - the default format. It is used if no default format. If null, "M/d/yy" is assumed.
Since:
5.0.7

getTimeFormat

public static final java.lang.String getTimeFormat(int style,
                                                   java.util.Locale locale,
                                                   java.lang.String defaultFormat)
Returns the current time format; never null.

If a format info is set by setLocalFormatInfo(org.zkoss.text.DateFormatInfo), DateFormatInfo.getTimeFormat(int, java.util.Locale) of the info will be called first. If no info is set or the info returns null, java.text.DateFormat.getTimeInstance(style, locale) will be called instead. If no format is found and the value of defaultFormat is not null, defaultFormat will be returned. Otherwise, "h:mm a" is returned.

Parameters:
style - the giving formatting style. For example, DateFormat.SHORT for "h:mm a" in the US locale.
locale - the locale. If null, Locales.getCurrent() is assumed.
defaultFormat - the default format. It is used if no default format. If null, "h:mm a" is assumed.
Since:
5.0.7

getDateTimeFormat

public static final java.lang.String getDateTimeFormat(int dateStyle,
                                                       int timeStyle,
                                                       java.util.Locale locale,
                                                       java.lang.String defaultFormat)
Returns the current date/time format; never null.

If a format info is set by setLocalFormatInfo(org.zkoss.text.DateFormatInfo), DateFormatInfo.getDateTimeFormat(int, int, java.util.Locale) of the info will be called first. If no info is set or the info returns null, java.text.DateFormat.getDateTimeInstance(dateStyle, timeStyle, locale) will be called instead. If no format is found and the value of defaultFormat is not null, defaultFormat will be returned. Otherwise, "M/d/yy h:mm a" is returned.

Parameters:
dateStyle - the giving formatting style. For example, DateFormat.SHORT for "M/d/yy" in the US locale.
timeStyle - the giving formatting style. For example, DateFormat.SHORT for "h:mm a" in the US locale.
locale - the locale. If null, Locales.getCurrent() is assumed.
Since:
5.0.7

format

public static final java.lang.String format(java.util.Date d,
                                            boolean dateOnly)
Formats a Date object based on the current Locale and the default date format (DateFormat.DEFAULT.

Parameters:
dateOnly - indicates whether to show only date; false to show both date and time

parse

public static final java.util.Date parse(java.lang.String s,
                                         boolean dateOnly)
                                  throws java.text.ParseException
Parses a string, that is formatted by format(java.util.Date, boolean), to a date. It assumes the current locale is Locales.getCurrent().

Parameters:
dateOnly - indicates whether to show only date; false to show both date and time
Throws:
java.text.ParseException
Since:
5.0.5


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