applyToBuffer method

@override void applyToBuffer(ByteDataWriter buffer)

Implementation

@override
void applyToBuffer(ByteDataWriter buffer) {
  buffer.writeUint8(ClientMessage.BindIdentifier);
  buffer.writeUint32(length - 1);

  // Name of portal.
  _portalName.applyToBuffer(buffer);
  // Name of prepared statement.
  _statementName.applyToBuffer(buffer);

  // OK, if we have no specified types at all, we can use 0. If we have all specified types, we can use 1. If we have a mix, we have to individually
  // call out each type.
  if (_typeSpecCount == _parameters.length) {
    buffer.writeUint16(1);
    // Apply following format code for all parameters by indicating 1
    buffer.writeUint16(ClientMessage.FormatBinary);
  } else if (_typeSpecCount == 0) {
    buffer.writeUint16(1);
    // Apply following format code for all parameters by indicating 1
    buffer.writeUint16(ClientMessage.FormatText);
  } else {
    // Well, we have some text and some binary, so we have to be explicit about each one
    buffer.writeUint16(_parameters.length);
    for (final p in _parameters) {
      buffer.writeUint16(
          p.isBinary ? ClientMessage.FormatBinary : ClientMessage.FormatText);
    }
  }

  // This must be the number of $n's in the query.
  buffer.writeUint16(_parameters.length);
  for (final p in _parameters) {
    if (p.bytes == null) {
      buffer.writeInt32(-1);
    } else {
      buffer.writeInt32(p.length);
      buffer.write(p.bytes!);
    }
  }

  // Result columns - we always want binary for all of them, so specify 1:1.
  buffer.writeUint16(1);
  buffer.writeUint16(1);
}