public IEnumerator <T> GetEnumerator()
{
DbCommandFactor commandFactor = this.GenerateCommandFactor();
var enumerator = QueryEnumeratorCreator.CreateEnumerator <T>(this._query.DbContext.AdoSession, commandFactor);
return(enumerator);
}
public QueryEnumerator(InternalAdoSession adoSession, DbCommandFactor commandFactor)
{
this._adoSession = adoSession;
this._commandFactor = commandFactor;
this._objectActivator = commandFactor.ObjectActivator;
this._reader = null;
this._current = default(T);
this._hasFinished = false;
this._disposed = false;
}
public QueryEnumerator(DbCommandFactor commandFactor, Func <DbCommandFactor, bool, Task <IDataReader> > dataReaderGetter)
{
this._commandFactor = commandFactor;
this._dataReaderGetter = dataReaderGetter;
this._objectActivator = commandFactor.ObjectActivator;
this._reader = null;
this._current = default(T);
this._hasFinished = false;
this._disposed = false;
}
public IEnumerator <T> GetEnumerator()
{
DbCommandFactor commandFactor = this.GenerateCommandFactor();
QueryEnumerator <T> enumerator = new QueryEnumerator <T>(async(@async) =>
{
IDataReader dataReader = await this._query.DbContext.Session.ExecuteReader(commandFactor.CommandText, CommandType.Text, commandFactor.Parameters, @async);
return(DataReaderReady(dataReader, commandFactor.ObjectActivator));
}, commandFactor.ObjectActivator);
return(enumerator);
}
DbCommandFactor GenerateCommandFactor()
{
IQueryState qs = QueryExpressionVisitor.VisitQueryExpression(this._query.QueryExpression);
MappingData data = qs.GenerateMappingData();
IObjectActivator objectActivator;
objectActivator = data.ObjectActivatorCreator.CreateObjectActivator();
IDbExpressionTranslator translator = this._query.DbContext._dbContextServiceProvider.CreateDbExpressionTranslator();
List <DbParam> parameters;
string cmdText = translator.Translate(data.SqlQuery, out parameters);
DbCommandFactor commandFactor = new DbCommandFactor(objectActivator, cmdText, parameters.ToArray());
return(commandFactor);
}
public IEnumerator <T> GetEnumerator()
{
DbCommandFactor commandFactor = this.GenerateCommandFactor();
var enumerator = QueryEnumeratorCreator.CreateEnumerator <T>(commandFactor, cmdFactor =>
{
IDataReader dataReader = this._query.DbContext.AdoSession.ExecuteReader(cmdFactor.CommandText, cmdFactor.Parameters, CommandType.Text);
if (cmdFactor.ObjectActivator is RootEntityActivator)
{
dataReader = new QueryDataReader(dataReader);
}
cmdFactor.ObjectActivator.Prepare(dataReader);
return(dataReader);
});
return(enumerator);
}
DbCommandFactor GenerateCommandFactor()
{
IQueryState qs = QueryExpressionResolver.Resolve(this._query.QueryExpression, new ScopeParameterDictionary(), new StringSet());
MappingData data = qs.GenerateMappingData();
IObjectActivator objectActivator;
if (this._query._trackEntity)
{
objectActivator = data.ObjectActivatorCreator.CreateObjectActivator(this._query.DbContext);
}
else
{
objectActivator = data.ObjectActivatorCreator.CreateObjectActivator();
}
IDbExpressionTranslator translator = this._query.DbContext.DatabaseProvider.CreateDbExpressionTranslator();
DbCommandInfo dbCommandInfo = translator.Translate(data.SqlQuery);
DbCommandFactor commandFactor = new DbCommandFactor(objectActivator, dbCommandInfo.CommandText, dbCommandInfo.GetParameters());
return(commandFactor);
}
DbCommandFactor GenerateCommandFactor()
{
IQueryState qs = QueryExpressionVisitor.VisitQueryExpression(this._query.QueryExpression, new ScopeParameterDictionary(), new KeyDictionary <string>());
MappingData data = qs.GenerateMappingData();
IObjectActivator objectActivator;
if (this._query._trackEntity)
{
objectActivator = data.ObjectActivatorCreator.CreateObjectActivator(this._query.DbContext);
}
else
{
objectActivator = data.ObjectActivatorCreator.CreateObjectActivator();
}
IDbExpressionTranslator translator = this._query.DbContext.DatabaseProvider.CreateDbExpressionTranslator();
List <DbParam> parameters;
string cmdText = translator.Translate(data.SqlQuery, out parameters);
DbCommandFactor commandFactor = new DbCommandFactor(objectActivator, cmdText, parameters.ToArray());
return(commandFactor);
}
public override string ToString()
{
DbCommandFactor commandFactor = this.GenerateCommandFactor();
return(InternalAdoSession.AppendDbCommandInfo(commandFactor.CommandText, commandFactor.Parameters));
}
public static IEnumerator <T> CreateEnumerator <T>(InternalAdoSession adoSession, DbCommandFactor commandFactor)
{
return(new QueryEnumerator <T>(adoSession, commandFactor));
}
public static QueryEnumerator <T> CreateEnumerator <T>(DbCommandFactor commandFactor, Func <DbCommandFactor, bool, Task <IDataReader> > dataReaderGetter)
{
return(new QueryEnumerator <T>(commandFactor, dataReaderGetter));
}