/// <exception cref="System.IO.IOException"></exception>
protected internal Index(ByteBuffer tableBuffer, IList <IndexData> indexDatas, JetFormat
format)
{
ByteUtil.Forward(tableBuffer, format.SKIP_BEFORE_INDEX_SLOT);
//Forward past Unknown
_indexNumber = tableBuffer.GetInt();
int indexDataNumber = tableBuffer.GetInt();
// read foreign key reference info
byte relIndexType = tableBuffer.Get();
int relIndexNumber = tableBuffer.GetInt();
int relTablePageNumber = tableBuffer.GetInt();
byte cascadeUpdatesFlag = tableBuffer.Get();
byte cascadeDeletesFlag = tableBuffer.Get();
_indexType = tableBuffer.Get();
if ((_indexType == FOREIGN_KEY_INDEX_TYPE) && (relIndexNumber != INVALID_INDEX_NUMBER
))
{
_reference = new Index.ForeignKeyReference(relIndexType, relIndexNumber, relTablePageNumber
, (cascadeUpdatesFlag == CASCADE_UPDATES_FLAG), (cascadeDeletesFlag == CASCADE_DELETES_FLAG
));
}
else
{
_reference = null;
}
ByteUtil.Forward(tableBuffer, format.SKIP_AFTER_INDEX_SLOT);
//Skip past Unknown
_data = indexDatas[indexDataNumber];
_data.AddIndex(this);
}