/// <summary>
/// This private method is used to resolve a lookup reference from the cache.
/// </summary>
/// <param name="transform">The transform.</param>
/// <param name="reference">The tuple type/value pair.</param>
/// <returns>Returns triple with the first boolean property indicating success followed by the key and the version.</returns>
private async Task <Tuple <bool, K, string> > RedisResolveReference(EntityTransformHolder <K, E> transform, Tuple <string, string> reference)
{
if (transform.KeyDeserializer != null)
{
try
{
IDatabase rDb = mLazyConnection.Value.GetDatabase();
RedisKey hashkey = RedisReferenceKeyGet(transform, transform.ReferenceHashMaker(reference));
//Entity
RedisValue enitityId = await rDb.HashGetAsync(hashkey, cnKeyEntityId);
if (enitityId.HasValue)
{
K key = transform.KeyDeserializer(enitityId);
return(new Tuple <bool, K, string>(true, key, await rDb.HashGetAsync(hashkey, cnKeyVersion)));
}
}
catch (Exception)
{
// Don't raise an exception here
}
}
return(new Tuple <bool, K, string>(false, default(K), null));
}
/// <summary>
/// This method writes out the references for the entity.
/// </summary>
/// <param name="batch">The redis batch.</param>
/// <param name="transform">The entity transform.</param>
/// <param name="reference">The reference.</param>
/// <param name="key">The root key.</param>
/// <param name="version">The entity version.</param>
/// <param name="expiry">Expiry time of the key</param>
/// <returns>Returns an async task.</returns>
protected virtual List <Task> WriteReference(IBatch batch, EntityTransformHolder <K, E> transform, Tuple <string, string> reference, K key, string version, TimeSpan?expiry = null)
{
//entityreference.{entitytype}.{keytype i.e., EMAIL, ID etc.}
RedisKey hashkey = RedisReferenceKeyGet(transform, transform.ReferenceHashMaker(reference));
return(new List <Task>(3)
{
batch.HashSetAsync(hashkey, cnKeyEntityId, transform.KeySerializer(key), when: When.Always),
batch.HashSetAsync(hashkey, cnKeyVersion, version, when: When.Always),
batch.KeyExpireAsync(hashkey, expiry ?? mEntityTtl)
});
}