public RetrieveHandler(AddinsFactory factory)
{
_ret = new Lazy <IObjectRetrieveAddin>(() => { return(factory.CreateRetrieveAddin()); });
_query = new Lazy <IQueryAddin>(() => { return(factory.CreateQueryAddin()); });
_store = new Lazy <IStoreAddin>(() => { return(factory.CreateStoreAddin()); });
_storage = new Lazy <Dicom.Imaging.DiskDataCacheStorage>(() => { return(factory.CreateCacheDiskStorage()); });
}