public IEnumerable <T> Stores <T, K, V>(StoreQueryParameters <T, K, V> storeQueryParameters)
where T : class
{
string storeName = storeQueryParameters.StoreName;
IQueryableStoreType <T, K, V> queryableStoreType = storeQueryParameters.QueryableStoreType;
IStateStore stateStore;
if (!globalStateStores.TryGetValue(storeName, out stateStore) || !queryableStoreType.Accepts(stateStore))
{
return(Enumerable.Empty <T>());
}
if (!stateStore.IsOpen)
{
throw new InvalidStateStoreException($"the state store, {storeName}, is not open.");
}
if (stateStore is TimestampedKeyValueStore <K, V> && queryableStoreType is KeyValueStoreType <K, V> )
{
return(new[] { new ReadOnlyKeyValueStoreFacade <K, V>(stateStore as TimestampedKeyValueStore <K, V>) as T });
}
// TODO: handle TimestampedWindowStore
//} else if (store instanceof TimestampedWindowStore && queryableStoreType instanceof QueryableStoreTypes.WindowStoreType) {
// return (List<T>) Collections.singletonList(new ReadOnlyWindowStoreFacade((TimestampedWindowStore<Object, Object>) store));
//}
return(new[] { stateStore as T });
}
public IEnumerable <T> Stores <T, K, V>(StoreQueryParameters <T, K, V> storeQueryParameters)
where T : class
{
string storeName = storeQueryParameters.StoreName;
IQueryableStoreType <T, K, V> queryableStoreType = storeQueryParameters.QueryableStoreType;
IStateStore stateStore;
if (!globalStateStores.TryGetValue(storeName, out stateStore) || !queryableStoreType.Accepts(stateStore))
{
return(Enumerable.Empty <T>());
}
if (!stateStore.IsOpen)
{
throw new InvalidStateStoreException($"the state store, {storeName}, is not open.");
}
if (stateStore is ITimestampedKeyValueStore <K, V> && queryableStoreType is KeyValueStoreType <K, V> )
{
return(new[] { new ReadOnlyKeyValueStoreFacade <K, V>(stateStore as ITimestampedKeyValueStore <K, V>) as T });
}
else if (stateStore is ITimestampedWindowStore <K, V> && queryableStoreType is WindowStoreType <K, V> )
{
return(new[] { new ReadOnlyWindowStoreFacade <K, V>(stateStore as ITimestampedWindowStore <K, V>) as T });
}
else
{
return new[] { stateStore as T }
};
}
}