public static TRecord GetByKey <TRecord, TKeyCollection>(
this RecordReader <TRecord, TKeyCollection> reader,
Func <TKeyCollection, KeyInfo> keySelector,
System.Linq.Expressions.Expression <Func <TRecord, bool> > whereExpression = null,
LockMode lockMode = LockMode.None)
where TRecord : Record <TRecord>
where TKeyCollection : KeyCollection <TRecord>, new()
{
return(reader.GetByKey(
keySelector == null ? null : keySelector(reader.Keys),
whereExpression,
lockMode));
}
public static TRecord GetByKeyValue <TRecord, TKeyCollection>(
this RecordReader <TRecord, TKeyCollection> reader,
Func <TKeyCollection, KeyValue> keyValueSelector,
LockMode lockMode = LockMode.None)
where TRecord : Record <TRecord>
where TKeyCollection : KeyCollection <TRecord>, new()
{
if (keyValueSelector == null)
{
throw new ArgumentNullException();
}
return(reader.GetByKeyValue(
keyValueSelector(reader.Keys),
lockMode));
}
static void ValidateStat(RecordReader <TRecord, TKeyCollection> manager)
{
var keySpecs = new List <KeySpec>();
foreach (var keySpec in manager._stat.KeySpecs)
{
keySpecs.Add(keySpec);
if (!keySpec.IsSegmentKey)
{
var fields = manager.Operator.RecordInfo.Fields.Where(f => f.KeySegments.Any(a => a.KeyNumber == keySpec.Number));
if (fields.Count() != keySpecs.Count())
{
throw new InvalidDefinitionException();
}
foreach (var field in fields)
{
var tmpKeySpec = keySpecs.SingleOrDefault(s => s.Position == field.Position && s.Length == field.Length);
if (tmpKeySpec == null)
{
throw new InvalidDefinitionException();
}
else
{
keySpecs.Remove(tmpKeySpec);
}
}
if (keySpecs.Count != 0)
{
throw new InvalidDefinitionException();
}
}
}
if (keySpecs.Count != 0)
{
throw new InvalidDefinitionException();
}
}
public Connection(RecordReader <TRecord, TKeyCollection> manager)
{
if (manager._connection == null)
{
if (manager.CheckTransaction())
{
manager._connection = new Connection();
manager._connection._manager = manager;
}
else
{
_manager = manager;
}
if (!manager.Operator.IsOpened)
{
manager.Operator.Open();
if (manager._stat == null)
{
manager._stat = manager.Operator.Stat;
ValidateStat(manager);
}
}
}
}
