public ByteKeyIterator(Table table, ByteRangeParams ps)
{
this.table = table;
this.startKey = ps.startKey;
this.endKey = ps.endKey;
this.prefix = ps.prefix;
this.count = ps.count;
this.granularity = ps.granularity;
this.forwardDirection = ps.forwardDirection;
Query(false);
}
internal ulong Count(ulong tableID, ByteRangeParams ps)
{
int status;
unsafe
{
fixed(byte *pStartKey = ps.startKey, pEndKey = ps.endKey, pPrefix = ps.prefix)
{
IntPtr ipStartKey = new IntPtr(pStartKey);
IntPtr ipEndKey = new IntPtr(pEndKey);
IntPtr ipPrefix = new IntPtr(pPrefix);
status = scaliendb_client.SDBP_CountCStr(cptr, tableID, ipStartKey, ps.startKey.Length, ipEndKey, ps.endKey.Length, ipPrefix, ps.prefix.Length, ps.forwardDirection);
}
}
CheckResultStatus(status);
ulong number = result.GetNumber();
result.Close();
return(number);
}
/// <summary>
/// Return an iterator that will return keys and values as a <see cref="System.Collections.Generic.KeyValuePair{T, T}"/>.
/// </summary>
/// <param name="ps">The parameters of iteration, as a <see cref="Scalien.ByteRangeParams"/>.</param>
/// <returns>The iterator.</returns>
/// <seealso cref="System.Collections.Generic.KeyValuePair{T, T}"/>
/// <seealso cref="Scalien.ByteRangeParams"/>
/// <seealso cref="GetKeyValueIterator(StringRangeParams)"/>
/// <seealso cref="GetKeyIterator(StringRangeParams)"/>
/// <seealso cref="GetKeyIterator(ByteRangeParams)"/>
public virtual ByteKeyValueIterator GetKeyValueIterator(ByteRangeParams ps)
{
return(new ByteKeyValueIterator(this, ps));
}
/// <summary>
/// Return the number of matching keys in the table.
/// </summary>
/// <param name="ps">The filter parameters.</param>
/// <returns>The number of matching keys in the table.</returns>
/// <exception cref="SDBPException"/>
/// <seealso cref="Scalien.ByteRangeParams"/>
/// <seealso cref="Count(StringRangeParams)"/>
public virtual ulong Count(ByteRangeParams ps)
{
return(client.Count(tableID, ps));
}
/// <summary>
/// Return an iterator that will return keys and values as a <see cref="System.Collections.Generic.KeyValuePair{T, T}"/>.
/// </summary>
/// <param name="ps">The parameters of iteration, as a <see cref="Scalien.ByteRangeParams"/>.</param>
/// <returns>The iterator.</returns>
/// <seealso cref="System.Collections.Generic.KeyValuePair{T, T}"/>
/// <seealso cref="Scalien.ByteRangeParams"/>
/// <seealso cref="GetKeyValueIterator(StringRangeParams)"/>
/// <seealso cref="GetKeyIterator(StringRangeParams)"/>
/// <seealso cref="GetKeyIterator(ByteRangeParams)"/>
public ByteKeyValueIterator GetKeyValueIterator(ByteRangeParams ps)
{
return new ByteKeyValueIterator(this, ps);
}
/// <summary>
/// Return the number of matching keys in the table.
/// </summary>
/// <param name="ps">The filter parameters.</param>
/// <returns>The number of matching keys in the table.</returns>
/// <exception cref="SDBPException"/>
/// <seealso cref="Scalien.ByteRangeParams"/>
/// <seealso cref="Count(StringRangeParams)"/>
public ulong Count(ByteRangeParams ps)
{
return client.Count(tableID, ps);
}
public void ListTestLinq()
{
Client client = new Client(Utils.GetConfigNodes());
Table table = client.GetDatabase("Benchmark").GetTable("transactionNetworkTransaction");
byte[] prefix = Utils.StringToByteArray("N:0000000000000|T:000000");
byte[] startKey = Utils.StringToByteArray("N:0000000000000|T:0000001250847|");
var rangeParams = new ByteRangeParams().StartKey(startKey).Prefix(prefix);
ByteKeyValueIterator iterator = table.GetKeyValueIterator(rangeParams);
var list = new List<KeyValuePair<byte[], byte[]>>();
list.AddRange(iterator.Select(kv => kv));
}
/// <summary>
/// Return an iterator that will return only keys.
/// </summary>
/// <param name="ps">The parameters of iteration, as a <see cref="Scalien.ByteRangeParams"/>.</param>
/// <returns>The iterator.</returns>
/// <seealso cref="Scalien.ByteRangeParams"/>
/// <seealso cref="GetKeyIterator(ByteRangeParams)"/>
/// <seealso cref="GetKeyValueIterator(StringRangeParams)"/>
/// <seealso cref="GetKeyValueIterator(ByteRangeParams)"/>
public virtual ByteKeyIterator GetKeyIterator(ByteRangeParams ps)
{
return new ByteKeyIterator(this, ps);
}
