/// <summary>
/// Return an estimate of the proportion of keys that are less than,
/// equal to, and greater than the specified key.
/// </summary>
/// <param name="key">The key to search for</param>
/// <param name="txn">
/// If the operation is part of an application-specified transaction,
/// <paramref name="txn"/> is a Transaction object returned from
/// <see cref="DatabaseEnvironment.BeginTransaction"/>; if
/// the operation is part of a Berkeley DB Concurrent Data Store group,
/// <paramref name="txn"/> is a handle returned from
/// <see cref="DatabaseEnvironment.BeginCDSGroup"/>; otherwise null.
/// </param>
/// <returns>
/// An estimate of the proportion of keys that are less than, equal to,
/// and greater than the specified key.
/// </returns>
public KeyRange KeyRange(DatabaseEntry key, Transaction txn)
{
DB_KEY_RANGE range = new DB_KEY_RANGE();
db.key_range(Transaction.getDB_TXN(txn), key, range, 0);
return(new KeyRange(range));
}
internal KeyRange(DB_KEY_RANGE keyRange)
{
kr = keyRange;
}
