public byte[] getBytes(DataVal dataVal)
{
BinaryFormatter formatter = new BinaryFormatter();
MemoryStream ms = new MemoryStream();
formatter.Serialize(ms, dataVal);
return(ms.GetBuffer());
}
public DatabaseEntry SecondaryKeyGen(
DatabaseEntry key, DatabaseEntry data)
{
byte[] firstStr = new byte[1];
DataVal dataVal = getDataVal(data.Data);
firstStr[0] = ASCIIEncoding.ASCII.GetBytes(dataVal.DataString)[0];
return(new DatabaseEntry(firstStr));
}
/* Perform bulk update in primary db */
public void BulkUpdate()
{
Transaction txn = env.BeginTransaction();
try {
if (this.dups == 0)
{
/*
* Bulk insert non-duplicate key/data pairs. Those pairs
* are filled into one single buffer.
*/
List <KeyValuePair <DatabaseEntry, DatabaseEntry> > pList =
new List <KeyValuePair <DatabaseEntry, DatabaseEntry> >();
for (int i = 0; i < this.num; i++)
{
DataVal dataVal = new DataVal(i);
pList.Add(
new KeyValuePair <DatabaseEntry, DatabaseEntry>(
new DatabaseEntry(BitConverter.GetBytes(i)),
new DatabaseEntry(getBytes(dataVal))));
}
pdb.Put(new MultipleKeyDatabaseEntry(pList, false), txn);
}
else
{
/* Bulk insert duplicate key/data pairs. All keys are
* filled into a buffer, and their data is filled into
* another buffer.
*/
List <DatabaseEntry> kList = new List <DatabaseEntry>();
List <DatabaseEntry> dList = new List <DatabaseEntry>();
for (int i = 0; i < this.num; i++)
{
int j = 0;
DataVal dataVal = new DataVal(i);
do
{
kList.Add(
new DatabaseEntry(BitConverter.GetBytes(i)));
dataVal.DataId = j;
dList.Add(new DatabaseEntry(getBytes(dataVal)));
} while (++j < this.dups);
}
pdb.Put(new MultipleDatabaseEntry(kList, false),
new MultipleDatabaseEntry(dList, false), txn);
}
txn.Commit();
} catch (DatabaseException e1) {
txn.Abort();
throw e1;
} catch (IOException e2) {
txn.Abort();
throw e2;
}
}
public byte[] getBytes(DataVal dataVal)
{
BinaryFormatter formatter = new BinaryFormatter();
MemoryStream ms = new MemoryStream();
formatter.Serialize(ms, dataVal);
return ms.GetBuffer();
}
/* Perform bulk update in primary db */
public void BulkUpdate()
{
Transaction txn = env.BeginTransaction();
try {
if (this.dups == 0) {
/*
* Bulk insert non-duplicate key/data pairs. Those pairs
* are filled into one single buffer.
*/
List<KeyValuePair<DatabaseEntry, DatabaseEntry>> pList =
new List<KeyValuePair<DatabaseEntry, DatabaseEntry>>();
for (int i = 0; i < this.num; i++) {
DataVal dataVal = new DataVal(i);
pList.Add(
new KeyValuePair<DatabaseEntry, DatabaseEntry>(
new DatabaseEntry(BitConverter.GetBytes(i)),
new DatabaseEntry(getBytes(dataVal))));
}
pdb.Put(new MultipleKeyDatabaseEntry(pList, false), txn);
} else {
/* Bulk insert duplicate key/data pairs. All keys are
* filled into a buffer, and their data is filled into
* another buffer.
*/
List<DatabaseEntry> kList = new List<DatabaseEntry>();
List<DatabaseEntry> dList = new List<DatabaseEntry>();
for (int i = 0; i < this.num; i++) {
int j = 0;
DataVal dataVal = new DataVal(i);
do {
kList.Add(
new DatabaseEntry(BitConverter.GetBytes(i)));
dataVal.DataId = j;
dList.Add(new DatabaseEntry(getBytes(dataVal)));
} while (++j < this.dups);
}
pdb.Put(new MultipleDatabaseEntry(kList, false),
new MultipleDatabaseEntry(dList, false), txn);
}
txn.Commit();
} catch (DatabaseException e1) {
txn.Abort();
throw e1;
} catch (IOException e2) {
txn.Abort();
throw e2;
}
}
