public IrbisRecord[] ReadAllRecordVersions
(
int mfn
)
{
List <IrbisRecord> result = new List <IrbisRecord>();
IrbisRecord lastVersion = ReadRecord(mfn);
if (lastVersion != null)
{
result.Add(lastVersion);
while (true)
{
long offset = lastVersion.PreviousOffset;
if (offset == 0)
{
break;
}
MstRecord32 mstRecord = Mst.ReadRecord2(offset);
IrbisRecord previousVersion = mstRecord.DecodeRecord();
if (previousVersion != null)
{
result.Add(previousVersion);
lastVersion = previousVersion;
}
}
}
return(result.ToArray());
}
/// <summary>
/// Search and read found records.
/// </summary>
public IrbisRecord[] SearchReadSimple
(
string key
)
{
int[] mfns = InvertedFile.SearchSimple(key);
List <IrbisRecord> result = new List <IrbisRecord>();
foreach (int mfn in mfns)
{
try
{
XrfRecord32 xrfRecord = Xrf.ReadRecord(mfn);
if (!xrfRecord.Deleted)
{
MstRecord32 mstRecord = Mst.ReadRecord2(xrfRecord.AbsoluteOffset);
if (!mstRecord.Deleted)
{
IrbisRecord irbisRecord = mstRecord.DecodeRecord();
irbisRecord.Database = Database;
result.Add(irbisRecord);
}
}
}
catch (Exception ex)
{
Debug.WriteLine(ex);
}
}
return(result.ToArray());
}
public IrbisRecord ReadRecord
(
int mfn
)
{
XrfRecord32 xrfRecord = Xrf.ReadRecord(mfn);
if ((xrfRecord.Status & RecordStatus.PhysicallyDeleted) != 0)
{
return(null);
}
MstRecord32 mstRecord = Mst.ReadRecord2
(
xrfRecord.AbsoluteOffset
);
IrbisRecord result = mstRecord.DecodeRecord();
result.Database = Database;
return(result);
}
