net.fortuna.ical4j.model.property
Class RecurrenceId
DateProperty
net.fortuna.ical4j.model.property.RecurrenceId
public class RecurrenceId
extends DateProperty
$Id: RecurrenceId.java,v 1.19 2008/12/16 12:34:51 fortuna Exp $
Created: [Apr 6, 2004]
Defines a RECURRENCE-ID iCalendar component property.
4.8.4.4 Recurrence ID
Property Name: RECURRENCE-ID
Purpose: This property is used in conjunction with the "UID" and
"SEQUENCE" property to identify a specific instance of a recurring
"VEVENT", "VTODO" or "VJOURNAL" calendar component. The property
value is the effective value of the "DTSTART" property of the
recurrence instance.
Value Type: The default value type for this property is DATE-TIME.
The time format can be any of the valid forms defined for a DATE-TIME
value type. See DATE-TIME value type definition for specific
interpretations of the various forms. The value type can be set to
DATE.
Property Parameters: Non-standard property, value data type, time
zone identifier and recurrence identifier range parameters can be
specified on this property.
Conformance: This property can be specified in an iCalendar object
containing a recurring calendar component.
Description: The full range of calendar components specified by a
recurrence set is referenced by referring to just the "UID" property
value corresponding to the calendar component. The "RECURRENCE-ID"
property allows the reference to an individual instance within the
recurrence set.
If the value of the "DTSTART" property is a DATE type value, then the
value MUST be the calendar date for the recurrence instance.
The date/time value is set to the time when the original recurrence
instance would occur; meaning that if the intent is to change a
Friday meeting to Thursday, the date/time is still set to the
original Friday meeting.
The "RECURRENCE-ID" property is used in conjunction with the "UID"
and "SEQUENCE" property to identify a particular instance of a
recurring event, to-do or journal. For a given pair of "UID" and
"SEQUENCE" property values, the "RECURRENCE-ID" value for a
recurrence instance is fixed. When the definition of the recurrence
set for a calendar component changes, and hence the "SEQUENCE"
property value changes, the "RECURRENCE-ID" for a given recurrence
instance might also change.The "RANGE" parameter is used to specify
the effective range of recurrence instances from the instance
specified by the "RECURRENCE-ID" property value. The default value
for the range parameter is the single recurrence instance only. The
value can also be "THISANDPRIOR" to indicate a range defined by the
given recurrence instance and all prior instances or the value can be
"THISANDFUTURE" to indicate a range defined by the given recurrence
instance and all subsequent instances.
Format Definition: The property is defined by the following notation:
recurid = "RECURRENCE-ID" ridparam ":" ridval CRLF
ridparam = *(
; the following are optional,
; but MUST NOT occur more than once
(";" "VALUE" "=" ("DATE-TIME" / "DATE)) /
(";" tzidparam) / (";" rangeparam) /
; the following is optional,
; and MAY occur more than once
(";" xparam)
)
ridval = date-time / date
;Value MUST match value type
RecurrenceId() - Default constructor.
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RecurrenceId(Date aDate) - Constructor.
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RecurrenceId(ParameterList aList, Date aDate) - Constructor.
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RecurrenceId(ParameterList aList, String aValue)
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RecurrenceId(String value) - Creates a new instance initialised with the parsed value.
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RecurrenceId(String value, TimeZone timezone) - Creates a new RECURRENCE_ID property initialised with the specified timezone and value.
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RecurrenceId(TimeZone timezone) - Creates a new RECURRENCE_ID property initialised with the specified timezone.
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RecurrenceId
public RecurrenceId()
Default constructor.
RecurrenceId
public RecurrenceId(Date aDate)
Constructor. Date or Date-Time format is determined based on the presence of a VALUE parameter.
aDate
- a date representation of a date or date-time
RecurrenceId
public RecurrenceId(ParameterList aList,
Date aDate)
Constructor. Date or Date-Time format is determined based on the presence of a VALUE parameter.
aList
- a list of parameters for this componentaDate
- a date representation of a date or date-time
RecurrenceId
public RecurrenceId(ParameterList aList,
String aValue)
throws ParseException
aList
- a list of parameters for this componentaValue
- a value string for this component
RecurrenceId
public RecurrenceId(String value)
throws ParseException
Creates a new instance initialised with the parsed value.
value
- the RECURRENCE_ID value string to parse
RecurrenceId
public RecurrenceId(String value,
TimeZone timezone)
throws ParseException
Creates a new RECURRENCE_ID property initialised with the specified timezone and value.
value
- a string representation of a RECURRENCE_ID valuetimezone
- initial timezone
RecurrenceId
public RecurrenceId(TimeZone timezone)
Creates a new RECURRENCE_ID property initialised with the specified timezone.
timezone
- initial timezone
validate
public final void validate()
throws ValidationException