TimeSeriesProvider (OpenGamma Strata)

```
public interface TimeSeriesProvider
```
A provider of time-series.
This plugin point allows a market data supplier of time-series to be provided.

Method Summary

All Methods Static Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`static TimeSeriesProvider`	`empty()`	Returns a time-series provider that returns an empty time-series for any ID.
`static TimeSeriesProvider`	`none()`	Returns a time-series provider that is unable to source any time-series.
`Result<LocalDateDoubleTimeSeries>`	`provideTimeSeries(ObservableId identifier)`	Provides the time-series for the specified identifier.

- Method Detail
  - none
```
static TimeSeriesProvider none()
```
    Returns a time-series provider that is unable to source any time-series.
    All requests for a time-series will return a failure. This is used to validate that no time-series have been requested that were not already supplied in the input to the market data factory.
    
    Returns:
    
    the time-series provider
  - empty
```
static TimeSeriesProvider empty()
```
    Returns a time-series provider that returns an empty time-series for any ID.
    All requests for a time-series will succeed, returning an empty time-series. This is used for those cases where time-series are considered optional.
    
    Returns:
    
    the time-series provider
  - provideTimeSeries
```
Result<LocalDateDoubleTimeSeries> provideTimeSeries(ObservableId identifier)
```
    Provides the time-series for the specified identifier.
    The implementation will provide a time-series for the identifier, returning a failure if unable to do so.
    
    Parameters:
    
    identifier - the market data identifier to find
    
    Returns:
    
    the time-series of market data for the specified identifier