private Database CreateNewDatabase <TKey, TEntity>(bool autoGenerateKey)
{
var keyType = typeof(TKey);
var name = GetEntityName <TEntity>();
var indexId = Guid.NewGuid();
var databaseId = Guid.NewGuid();
var database = IntialiseDatabase(keyType, indexId, databaseId);
_databases[name] = database;
_addressSpaceIndex.MetaData.Add(new DatabaseMetaData
{
DatabaseName = name,
IndexId = indexId,
DataId = databaseId,
KeyType = keyType
});
if (autoGenerateKey)
{
var typeComparer = TypeComparer <TKey> .GetTypeComparer();
var autoGenIndexKey = typeComparer.Increment(typeComparer.MinKey);
var autoGen = new AutoGenIdentity <TKey>()
{
CurrentUsedId = autoGenIndexKey, EntityTypeName = name
};
_keyGenerators[typeof(TEntity)].RegisterAutoGenIdentity(autoGen);
autoGen.NextRetrieved += OnAutoGenIdentityRetrievedNextValue;
}
_addressSpaceManager.ResetAddressSpace(AddressSpaceIndex.IndexRootId);
_addressSpaceIndex.SaveToDisk();
return(database);
}
void OnAutoGenIdentityRetrievedNextValue <TKey>(AutoGenIdentity <TKey> sender)
{
var typeComparer = TypeComparer <TKey> .GetTypeComparer();
var autoGenIndexKey = typeComparer.Increment(typeComparer.MinKey);
var databaseToUpdate = _databases[sender.EntityTypeName];
var dataText = JsonConvert.SerializeObject(sender);
databaseToUpdate.Write(DataKey.CreateKey <TKey>(autoGenIndexKey), dataText);
}
private AutoGenIdentity <TKey> RetrieveAutoKeyState <TKey, TEntity>()
{
AutoGenIdentity <TKey> result;
var database = _databases[GetEntityName <TEntity>()];
var typeComparer = TypeComparer <TKey> .GetTypeComparer();
var autoGenIndexKey = typeComparer.Increment(typeComparer.MinKey);
var text = database.Read(DataKey.CreateKey(autoGenIndexKey));
if (!string.IsNullOrEmpty(text))
{
var record = new JellyRecord <AutoGenIdentity <TKey> >(text);
result = record.Entity;
result.NextRetrieved += OnAutoGenIdentityRetrievedNextValue;
return(result);
}
result = new AutoGenIdentity <TKey>()
{
CurrentUsedId = autoGenIndexKey, EntityTypeName = GetEntityName <TEntity>()
};
result.NextRetrieved += OnAutoGenIdentityRetrievedNextValue;
return(result);
}