LazyLoader (Keycloak Docs Distribution 21.1.1 API)

All Known Implementing Classes:

DefaultLazyLoader
```
public interface LazyLoader<S,D>
```
A functional interface that can be used to return data D from a source S where implementations are free to define how and when data is fetched from source as well how it is internally cached.
The source does not need to worry about caching data but always fetch data as demanded. The way data will actually be cached is an implementation detail.

Author:

Pedro Igor

See Also:

DefaultLazyLoader

- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  D get(Supplier<S> source)
  Returns data from the given source.

- Method Detail
  - get
```
D get(Supplier<S> source)
```
    Returns data from the given source. Data is only fetched from source once and only if necessary, it is up to implementations to decide the momentum to actually fetch data from source.
    
    Parameters:
    
    source - the source from where data will be fetched.
    
    Returns:
    
    the data from source