|
public static Build ( string tableName, |
||
| tableName | string | |
| pi | ||
| fieldHandlerFactory | IFieldHandlerFactory | |
| handlerOptions | FieldHandlerOptions | |
| Результат | ||
internal void EnsureClientTypeVersion()
{
if (ClientTypeVersion != 0)
{
return;
}
EnsureKnownLastPersistedVersion();
var props = _clientType.GetProperties();
var fields = new List <TableFieldInfo>(props.Length);
foreach (var pi in props)
{
fields.Add(TableFieldInfo.Build(Name, pi, _tableInfoResolver.FieldHandlerFactory, ClientType));
}
var tvi = new TableVersionInfo(fields.ToArray());
if (LastPersistedVersion == 0)
{
_tableVersions.TryAdd(1, tvi);
ClientTypeVersion = 1;
}
else
{
var last = _tableVersions.GetOrAdd(LastPersistedVersion, v => _tableInfoResolver.LoadTableVersionInfo(_id, v, Name));
if (TableVersionInfo.Equal(last, tvi))
{
ClientTypeVersion = LastPersistedVersion;
}
else
{
_tableVersions.TryAdd(LastPersistedVersion + 1, tvi);
ClientTypeVersion = LastPersistedVersion + 1;
}
}
}
internal void EnsureClientTypeVersion()
{
if (ClientTypeVersion != 0)
{
return;
}
EnsureKnownLastPersistedVersion();
var props = _clientType.GetProperties(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance);
var fields = new StructList <TableFieldInfo>();
fields.Reserve((uint)props.Length);
foreach (var pi in props)
{
if (pi.GetCustomAttributes(typeof(NotStoredAttribute), true).Length != 0)
{
continue;
}
if (pi.GetIndexParameters().Length != 0)
{
continue;
}
fields.Add(TableFieldInfo.Build(Name, pi, _tableInfoResolver.FieldHandlerFactory, FieldHandlerOptions.None));
}
var tvi = new TableVersionInfo(fields.ToArray());
if (LastPersistedVersion == 0)
{
_tableVersions.TryAdd(1, tvi);
ClientTypeVersion = 1;
}
else
{
var last = _tableVersions.GetOrAdd(LastPersistedVersion, (ver, tableInfo) => tableInfo._tableInfoResolver.LoadTableVersionInfo(tableInfo._id, ver, tableInfo.Name), this);
if (TableVersionInfo.Equal(last, tvi))
{
_tableVersions[LastPersistedVersion] = tvi; // tvi was build from real types and not loaded so it is more exact
ClientTypeVersion = LastPersistedVersion;
}
else
{
_tableVersions.TryAdd(LastPersistedVersion + 1, tvi);
ClientTypeVersion = LastPersistedVersion + 1;
}
}
}
RelationVersionInfo CreateVersionInfoByReflection()
{
var props = _clientType.GetProperties(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance);
var primaryKeys = new Dictionary <uint, TableFieldInfo>(1); //PK order->fieldInfo
var secondaryKeyFields = new List <TableFieldInfo>();
var secondaryKeys = new List <Tuple <int, IList <SecondaryKeyAttribute> > >(); //positive: sec key field idx, negative: pk order, attrs
var fields = new List <TableFieldInfo>(props.Length);
foreach (var pi in props)
{
if (pi.GetCustomAttributes(typeof(NotStoredAttribute), true).Length != 0)
{
continue;
}
if (pi.GetIndexParameters().Length != 0)
{
continue;
}
var pks = pi.GetCustomAttributes(typeof(PrimaryKeyAttribute), true);
PrimaryKeyAttribute actualPKAttribute = null;
if (pks.Length != 0)
{
actualPKAttribute = (PrimaryKeyAttribute)pks[0];
var fieldInfo = TableFieldInfo.Build(Name, pi, _relationInfoResolver.FieldHandlerFactory,
FieldHandlerOptions.Orderable);
if (fieldInfo.Handler.NeedsCtx())
{
throw new BTDBException($"Unsupported key field {fieldInfo.Name} type.");
}
primaryKeys.Add(actualPKAttribute.Order, fieldInfo);
}
var sks = pi.GetCustomAttributes(typeof(SecondaryKeyAttribute), true);
var id = (int)(-actualPKAttribute?.Order ?? secondaryKeyFields.Count);
List <SecondaryKeyAttribute> currentList = null;
for (var i = 0; i < sks.Length; i++)
{
if (i == 0)
{
currentList = new List <SecondaryKeyAttribute>(sks.Length);
secondaryKeys.Add(new Tuple <int, IList <SecondaryKeyAttribute> >(id, currentList));
if (actualPKAttribute == null)
{
secondaryKeyFields.Add(TableFieldInfo.Build(Name, pi, _relationInfoResolver.FieldHandlerFactory, FieldHandlerOptions.Orderable));
}
}
var key = (SecondaryKeyAttribute)sks[i];
if (key.Name == "Id")
{
throw new BTDBException("'Id' is invalid name for secondary key, it is reserved for primary key identification.");
}
currentList.Add(key);
}
if (actualPKAttribute == null)
{
fields.Add(TableFieldInfo.Build(Name, pi, _relationInfoResolver.FieldHandlerFactory, FieldHandlerOptions.None));
}
}
var prevVersion = LastPersistedVersion > 0 ? _relationVersions[LastPersistedVersion] : null;
return(new RelationVersionInfo(primaryKeys, secondaryKeys, secondaryKeyFields.ToArray(), fields.ToArray(), prevVersion));
}