PeriodProvider (Alfresco Data Model 7.199.310 API)

```
public interface PeriodProvider
```
Provider API for period implementations

Author:

andyh

Nested Class Summary

Nested Classes
Modifier and Type Interface Description

static class PeriodProvider.ExpressionMutiplicity
Period expression multiplicity

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`String`	`getDefaultExpression()`	Get the default expression - this could be null
`String`	`getDisplayLabel()`	Gets the display label for the period.
`QName`	`getExpressionDataType()`	Return the Alfresco data type QName to which the string value of the expression will be converted.
`PeriodProvider.ExpressionMutiplicity`	`getExpressionMutiplicity()`	Is the expression required etc ...
`Date`	`getNextDate(Date date, String expression)`	Get the next date - the provided date + period
`String`	`getPeriodType()`	Get the name for the period.

- Method Detail
  - getPeriodType
```
String getPeriodType()
```
    Get the name for the period.
    
    Returns:
    
    - period name
  - getDisplayLabel
```
String getDisplayLabel()
```
    Gets the display label for the period.
    
    Returns:
    
    display label
  - getNextDate
```
Date getNextDate(Date date,
                 String expression)
```
    Get the next date - the provided date + period
    
    Parameters:
    
    date - Date
    
    expression - String
    
    Returns:
    
    the next date in the period
  - getExpressionMutiplicity
```
PeriodProvider.ExpressionMutiplicity getExpressionMutiplicity()
```
    Is the expression required etc ...
    
    Returns:
    
    the multiplicity
  - getDefaultExpression
```
String getDefaultExpression()
```
    Get the default expression - this could be null
    
    Returns:
    
    - the default expression.
  - getExpressionDataType
```
QName getExpressionDataType()
```
    Return the Alfresco data type QName to which the string value of the expression will be converted.
    
    Returns:
    
    the alfresco data type or null if an expression is not allowed.