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From "Ron Grabowski (JIRA)" <ibatis-...@incubator.apache.org>
Subject [jira] Commented: (IBATISNET-93) ArgumentOutofRange Exception in IBatisNet.DataMapper.TypesHandler.ByteArrayTypeHandler.GetValueByIndex(Int, IDataReader)
Date Thu, 14 Jul 2005 01:55:10 GMT
    [ http://issues.apache.org/jira/browse/IBATISNET-93?page=comments#action_12315806 ] 

Ron Grabowski commented on IBATISNET-93:
----------------------------------------

You marked this issue as affecting DataMapper 1.1. The latest version of the DataMapper is
up to 1.2.1. There were changes made to the ByteArrayTypeHandler class on May 21, 2005 (svn
revision 171207) that may have already resolved this issue. There aren't any loops in the
current implementation:

 // determine the buffer size
 int bufferLength = (int) dataReader.GetBytes(columnIndex, 0, null, 0, 0);

 // initialize it
 byte[] byteArray = new byte[bufferLength];

 // fill it
 dataReader.GetBytes(columnIndex, 0, byteArray, 0, bufferLength);

 return byteArray;

> ArgumentOutofRange Exception in IBatisNet.DataMapper.TypesHandler.ByteArrayTypeHandler.GetValueByIndex(Int,
IDataReader)
> ------------------------------------------------------------------------------------------------------------------------
>
>          Key: IBATISNET-93
>          URL: http://issues.apache.org/jira/browse/IBATISNET-93
>      Project: iBatis for .NET
>         Type: Bug
>   Components: DataMapper
>     Versions: DataMapper 1.1
>  Environment: WinXP, MSSQL 2000
>     Reporter: Andrew English

>
> If IBatisNet reads a byte stream (in my specific instance it was an image) for which
(numBytes % bufferSize == 0) is true from the database (MSSQL in this case) MemoryStream.write
throws an exception.  I believe this is because the last # of bytes read was 0 since the previous
read finished off the file completely.  So after the loop there is the clean up write which
writes (int)bytesRead -1 bytes to the MemoryStream.  

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