public DocumentTableRow ReadDocument(int documentId)
{
var address = AddressReader.Read(
new BlockInfo(documentId * BlockSize, BlockSize));
var documentsOffset = Version.KeyIndexOffset + Version.KeyIndexSize;
using (var documentReader = new DocumentReader(
Stream, Version.Compression, KeyIndex, documentsOffset, leaveOpen: true))
{
var document = documentReader.Read(address);
document.TableId = documentId;
return(document);
}
}
private IEnumerable <DocumentTableRow> StreamDocuments()
{
var skipped = 0;
var took = 0;
for (int docId = 0; docId < _ix.DocumentCount; docId++)
{
var hash = _hashReader.Read(docId);
var address = _addressReader.Read(new[]
{
new BlockInfo(docId * BlockSerializer.SizeOfBlock(), BlockSerializer.SizeOfBlock())
}).First();
var document = _documentReader.Read(new List <BlockInfo> {
address
}).First();
if (!hash.IsObsolete)
{
if (skipped == _skip && took < _take)
{
yield return(document);
took++;
}
else if (skipped < _skip)
{
skipped++;
}
else if (took == _take)
{
break;
}
}
}
}