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## com.compoze.collab.exchange
Class RecurrencePattern

    java.lang.Object
      |
      +--com.compoze.collab.exchange.RecurrencePattern

Direct Known Subclasses:
  AppointmentRecurrencePattern, TaskRecurrencePattern

public class RecurrencePattern
extends java.lang.Object

This class is used as a base class for Exchange recurrence patterns.

Recurrence patterns are not necessarily static upon calling any of the `createXXX` methods. After a pattern is created, it is internally normalized. This is done because the recurrence pattern must contain fields for number of occurrences and end date, even if those fields are not used directly by the pattern. Normalization also adjusts start pattern start dates to make sure it falls on the pattern. So for example, creating a weekly pattern with a start date on Tuesday with a day mask of Wednesday will alter the start date to the next available Wednesday to match the pattern.

Additionally, if creating a monthly or yearly pattern with DayOfMonth or MonthOfYear set to zero, those fields will be reset to the day or month of the pattern start date. In other words, calling `getDayOfMonth()` will not return zero.

Method Summary
`int` | `getDayOfMonth()` Gets the day of the month for the pattern (only valid for `RecurrenceTypeEnum.MONTHLY` and `RecurrenceTypeEnum.YEARLY`)
`DaysOfWeek` | `getDaysOfWeek()` Gets the days of the week mask for the recurrence (only valid for `RecurrenceTypeEnum.WEEKLY`, `RecurrenceTypeEnum.MONTHLY_NTH` and `RecurrenceTypeEnum.YEARLY_NTH`).
`RecurrenceEndType` | `getEndType()` Gets the end type of the pattern.
`RecurrenceInstance` | `getInstance()` Gets the instance of the day within the period (only valid for `RecurrenceTypeEnum.MONTHLY_NTH` and `RecurrenceTypeEnum.YEARLY_NTH`).
`int` | `getInterval()` Gets the number of recurrence units between instances.
`int` | `getMonthOfYear()` Gets the month of year for the pattern (only valid for types `RecurrenceTypeEnum.YEARLY` and `RecurrenceTypeEnum.YEARLY_NTH`).
`int` | `getOccurrences()` Gets the number of occurrences in the pattern.
`java.util.Date` | `getPatternEndDate()` Gets the date of the last recurring instance.
`java.util.Date` | `getPatternStartDate()` Gets the date of the first recurring instance.
`RecurrenceType` | `getType()` Gets the type of the recurrence.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Method Detail

### getDayOfMonth

    public int getDayOfMonth()

  Gets the day of the month for the pattern (only valid for `RecurrenceTypeEnum.MONTHLY` and `RecurrenceTypeEnum.YEARLY`)
  Returns:
    the day of the month the task occurs

### getDaysOfWeek

    public DaysOfWeek getDaysOfWeek()

  Gets the days of the week mask for the recurrence (only valid for `RecurrenceTypeEnum.WEEKLY`, `RecurrenceTypeEnum.MONTHLY_NTH` and `RecurrenceTypeEnum.YEARLY_NTH`).
  Returns:
    the days of week mask

### getInstance

    public RecurrenceInstance getInstance()

  Gets the instance of the day within the period (only valid for `RecurrenceTypeEnum.MONTHLY_NTH` and `RecurrenceTypeEnum.YEARLY_NTH`).
  Returns:
    the instance, or `null` if not set

### getInterval

    public int getInterval()

  Gets the number of recurrence units between instances.
  Returns:
    the number of units between instances

### getMonthOfYear

    public int getMonthOfYear()

  Gets the month of year for the pattern (only valid for types `RecurrenceTypeEnum.YEARLY` and `RecurrenceTypeEnum.YEARLY_NTH`).
  Returns:
    the month of the year the appointment recurs

### getOccurrences

    public int getOccurrences()

  Gets the number of occurrences in the pattern.
  Returns:
    the number of occurrences

### getPatternStartDate

    public java.util.Date getPatternStartDate()

  Gets the date of the first recurring instance. Date values have no time associated with them since time information is stored separate from date information. The time portion of the returned date should be ignored. The date value is stored in GMT. Applying a timezone to the date is incorrect, and may cause the day to shift.
  Returns:
    the pattern start date

### getPatternEndDate

    public java.util.Date getPatternEndDate()

  Gets the date of the last recurring instance. Date values have no time associated with them since time information is stored separate from date information. The time portion of the returned date should be ignored. The date value is stored in GMT. Applying a timezone to the date is incorrect, and may cause the day to shift.
  Returns:
    the pattern end date

### getType

    public RecurrenceType getType()

  Gets the type of the recurrence.
  Returns:
    the recurrence type

### getEndType

    public RecurrenceEndType getEndType()

  Gets the end type of the pattern.
  Returns:
    the end type of the pattern

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