Package org.keycloak.models.cache.infinispan

Interface LazyLoader<S,D>

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:

  • Method Summary

    Modifier and Type
    Method
    Description
    D
    get(Supplier<S> source)
    Returns data from the given source.

  • Method Details

    • 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