case FIELD_RAWKEY : rawKey = IOUtil.readString( in ); break;
	protected void readField( int version, int filedId, DataInputStream in )			throws IOException	{		switch ( filedId )		{			case FIELD_ROW_TYPE :				rawType = IOUtil.readString( in  );				break;			case FIELD_ROWVALUE :				rawValue = IOUtil.readObject( in );				break;			case FIELD_ALTTEXT :				altText = IOUtil.readString( in );				break;			case FIELD_ALTTEXTKEY :				altTextKey = IOUtil.readString( in );				break;			default :				super.readField( version, filedId, in );		}	}