protected abstract Task <byte[]> GetSqlInfo(byte[] items, int bufferLength, AsyncWrappingCommonArgs async);
public abstract Task Attach(ServiceParameterBuffer spb, string dataSource, int port, string service, byte[] cryptKey, AsyncWrappingCommonArgs async);
public abstract Task Start(ServiceParameterBuffer spb, AsyncWrappingCommonArgs async);
protected abstract Task Cancel(AsyncWrappingCommonArgs async);
public Task Write(string data, AsyncWrappingCommonArgs async)
{
return(Write(_charset.GetBytes(data), async));
}
protected abstract Task GetSegment(Stream stream, AsyncWrappingCommonArgs async);
protected abstract Task Seek(int position, AsyncWrappingCommonArgs async);
public Task Initialize(AsyncWrappingCommonArgs async)
{
return(LookupBounds(async));
}
public async Task <Array> Read(AsyncWrappingCommonArgs async)
{
var slice = await GetSlice(GetSliceLength(true), async).ConfigureAwait(false);
return(await DecodeSlice(slice, async).ConfigureAwait(false));
}
protected async Task <DbStatementType> GetStatementType(AsyncWrappingCommonArgs async)
{
var buffer = await GetSqlInfo(StatementTypeInfoItems, IscCodes.STATEMENT_TYPE_BUFFER_SIZE, async).ConfigureAwait(false);
return(ProcessStatementTypeInfoBuffer(buffer));
}
public async Task FixNull(AsyncWrappingCommonArgs async)
{
if (NullFlag == -1 && await _dbValue.IsDBNull(async).ConfigureAwait(false))
{
switch (DbDataType)
{
case DbDataType.Char:
case DbDataType.VarChar:
DbValue.SetValue(string.Empty);
break;
case DbDataType.Guid:
DbValue.SetValue(Guid.Empty);
break;
case DbDataType.SmallInt:
DbValue.SetValue((short)0);
break;
case DbDataType.Integer:
DbValue.SetValue((int)0);
break;
case DbDataType.BigInt:
case DbDataType.Binary:
case DbDataType.Array:
case DbDataType.Text:
DbValue.SetValue((long)0);
break;
case DbDataType.Numeric:
case DbDataType.Decimal:
DbValue.SetValue((decimal)0);
break;
case DbDataType.Float:
DbValue.SetValue((float)0);
break;
case DbDataType.Double:
DbValue.SetValue((double)0);
break;
case DbDataType.Date:
case DbDataType.TimeStamp:
DbValue.SetValue(new DateTime(0 * 10000L + 621355968000000000));
break;
case DbDataType.Time:
DbValue.SetValue(TimeSpan.Zero);
break;
case DbDataType.Boolean:
DbValue.SetValue(false);
break;
case DbDataType.TimeStampTZ:
case DbDataType.TimeStampTZEx:
DbValue.SetValue(new FbZonedDateTime(new DateTime(0 * 10000L + 621355968000000000), TimeZoneMapping.DefaultTimeZoneName));
break;
case DbDataType.TimeTZ:
case DbDataType.TimeTZEx:
DbValue.SetValue(new FbZonedTime(TimeSpan.Zero, TimeZoneMapping.DefaultTimeZoneName));
break;
case DbDataType.Dec16:
case DbDataType.Dec34:
DbValue.SetValue(new FbDecFloat(0, 0));
break;
case DbDataType.Int128:
DbValue.SetValue((BigInteger)0);
break;
default:
throw IscException.ForStrParam($"Unknown sql data type: {DataType}.");
}
}
}
protected async Task <int> GetRecordsAffected(AsyncWrappingCommonArgs async)
{
var buffer = await GetSqlInfo(RowsAffectedInfoItems, IscCodes.ROWS_AFFECTED_BUFFER_SIZE, async).ConfigureAwait(false);
return(ProcessRecordsAffectedBuffer(buffer));
}
protected Task <byte[]> GetSqlInfo(byte[] items, AsyncWrappingCommonArgs async)
{
return(GetSqlInfo(items, IscCodes.DEFAULT_MAX_BUFFER_SIZE, async));
}
protected abstract Task Free(int option, AsyncWrappingCommonArgs async);
public ValueTask <bool> IsDBNull(AsyncWrappingCommonArgs async)
{
return(ValueTask2.FromResult(TypeHelper.IsDBNull(_value)));
}
public async Task Write(Array sourceArray, AsyncWrappingCommonArgs async)
{
SetDesc(sourceArray);
await PutSlice(sourceArray, GetSliceLength(false), async).ConfigureAwait(false);
}
protected abstract Task Open(AsyncWrappingCommonArgs async);
public ExitHolder(AsyncWrappingCommonArgs async, CancellationTokenRegistration cancellationTokenRegistration)
{
_async = async;
_cancellationTokenRegistration = cancellationTokenRegistration;
}
protected abstract Task PutSegment(byte[] buffer, AsyncWrappingCommonArgs async);
public ValueTask <char> GetChar(AsyncWrappingCommonArgs async)
{
return(ValueTask2.FromResult(Convert.ToChar(_value, CultureInfo.CurrentCulture)));
}
protected abstract Task Close(AsyncWrappingCommonArgs async);
public ValueTask <byte> GetByte(AsyncWrappingCommonArgs async)
{
return(ValueTask2.FromResult(Convert.ToByte(_value, CultureInfo.InvariantCulture)));
}
public async Task <string> ReadString(AsyncWrappingCommonArgs async)
{
var buffer = await Read(async).ConfigureAwait(false);
return(_charset.GetString(buffer, 0, buffer.Length));
}
public ValueTask <long> GetInt64(AsyncWrappingCommonArgs async)
{
return(ValueTask2.FromResult(Convert.ToInt64(_value, CultureInfo.InvariantCulture)));
}
public Task Write(byte[] buffer, AsyncWrappingCommonArgs async)
{
return(Write(buffer, 0, buffer.Length, async));
}
public ValueTask <decimal> GetDecimal(AsyncWrappingCommonArgs async)
{
return(ValueTask2.FromResult(Convert.ToDecimal(_value, CultureInfo.InvariantCulture)));
}
public abstract Task Detach(AsyncWrappingCommonArgs async);
public ValueTask <float> GetFloat(AsyncWrappingCommonArgs async)
{
return(ValueTask2.FromResult(Convert.ToSingle(_value, CultureInfo.InvariantCulture)));
}
public abstract Task Query(ServiceParameterBuffer spb, int requestLength, byte[] requestBuffer, int bufferLength, byte[] buffer, AsyncWrappingCommonArgs async);
public abstract Task <ArrayBase> CreateArray(long handle, string tableName, string fieldName, AsyncWrappingCommonArgs async);
