/// <summary>
/// Creates a new mapping description for a type of business object.
/// </summary>
public OrmEntityMap()
{
var staticFieldsInfo = Utilities.GetStaticFields <T>();
var identityFieldInfo = staticFieldsInfo.FirstOrDefault(f => typeof(OrmIdentityMapBase <T>).IsAssignableFrom(f.FieldType));
if (identityFieldInfo.IsNull())
{
throw new NotSupportedException(string.Format(
Properties.Resources.MicroOrmIsNotSupportedByTypeException, typeof(T).FullName));
}
_identity = (OrmIdentityMapBase <T>)identityFieldInfo.GetValue(null);
_fields = staticFieldsInfo.Where(f => typeof(OrmFieldMapBase <T>).IsAssignableFrom(f.FieldType))
.Select(f => (OrmFieldMapBase <T>)f.GetValue(null)).ToList();
if (null == _fields || _fields.Count < 1)
{
throw new NotSupportedException(
string.Format(Properties.Resources.NoFieldMapsForMicroOrmException, typeof(T).FullName));
}
_insertedAt = _fields.FirstOrDefault(f => f.GetType() == typeof(OrmFieldMapInsertedAt <T>)) as OrmFieldMapInsertedAt <T>;
_insertedBy = _fields.FirstOrDefault(f => f.GetType() == typeof(OrmFieldMapInsertedBy <T>)) as OrmFieldMapInsertedBy <T>;
_updatedAt = _fields.FirstOrDefault(f => f.GetType() == typeof(OrmFieldMapUpdatedAt <T>)) as OrmFieldMapUpdatedAt <T>;
_updatedBy = _fields.FirstOrDefault(f => f.GetType() == typeof(OrmFieldMapUpdatedBy <T>)) as OrmFieldMapUpdatedBy <T>;
_updateStatements = new ConcurrentDictionary <int, string>(Environment.ProcessorCount * 2, 10);
if (_identity.PrimaryKeyAutoIncrement || !_identity.PrimaryKeyUpdatable)
{
PrimaryKeyUpdateWhereParamName = _identity.PrimaryKeyFieldName;
}
else
{
PrimaryKeyUpdateWhereParamName = null;
for (int i = 0; i < _paramNameCandidats.Length; i++)
{
if (!_fields.Any(f => f.DbFieldName.EqualsByConvention(_paramNameCandidats[i])))
{
PrimaryKeyUpdateWhereParamName = _paramNameCandidats[i];
break;
}
}
if (PrimaryKeyUpdateWhereParamName.IsNullOrWhiteSpace())
{
throw new NotSupportedException(
"Failed to resolve UPDATE statement WHERE clause parameter name.");
}
}
}
internal void InitValue(T instance, string userId, OrmFieldMapUpdatedBy <T> updatedByFieldMap)
{
if (updatedByFieldMap.IsNull())
{
throw new ArgumentNullException(nameof(updatedByFieldMap));
}
if (userId.IsNullOrWhiteSpace())
{
throw new ArgumentNullException(nameof(userId));
}
ValueSetter(instance, userId);
updatedByFieldMap.ValueSetter(instance, userId);
}