public static ObjectDataProvider <TConnection, TDataParameter> GetProvider <TConnection, TDataParameter>(
this DataProviderMetaData @this, ICache cache, SqlCommandGenerator sqlCommandGenerator)
where TConnection : DbConnection, new()
where TDataParameter : IDbDataParameter, new()
{
return(ObjectDataProviderFactory <TConnection, TDataParameter> .Get(@this.Type, cache, sqlCommandGenerator));
}
public ObjectDataProvider(Type type, ICache cache, SqlCommandGenerator sqlCommandGenerator)
: base(cache)
{
entityType = type;
SqlCommandGenerator = sqlCommandGenerator;
MetaData = DataProviderMetaDataGenerator.Generate(type);
DeleteCommand = SqlCommandGenerator.GenerateDeleteCommand(MetaData);
UpdateCommand = SqlCommandGenerator.GenerateUpdateCommand(MetaData);
InsertCommand = SqlCommandGenerator.GenerateInsertCommand(MetaData);
PrepareTableTemplate();
PrepareFields();
PrepareColumnMappingDictonary();
}
static ObjectDataProvider <TConnection, TDataParameter> Create(Type type, ICache cache, SqlCommandGenerator sqlCommandGenerator)
{
var resultType = typeof(ObjectDataProvider <,>).MakeGenericType(typeof(TConnection), typeof(TDataParameter));
return((ObjectDataProvider <TConnection, TDataParameter>)Activator.CreateInstance(resultType, type, cache, sqlCommandGenerator));
}
public static ObjectDataProvider <TConnection, TDataParameter> Get(Type type, ICache cache, SqlCommandGenerator sqlCommandGenerator)
{
lock (Cache)
{
if (Cache.ContainsKey(type))
{
return(Cache[type]);
}
var result = Create(type, cache, sqlCommandGenerator);
Cache.Add(type, result);
return(result);
}
}
public override string GenerateWhere(DatabaseQuery query) => SqlCommandGenerator.GenerateWhere(query);
public override string GenerateSelectCommand(IDatabaseQuery iquery, string fields) => SqlCommandGenerator.GenerateSelectCommand(iquery, GetTables(iquery.AliasPrefix), fields);