[ http://issues.apache.org/jira/browse/DERBY-1471?page=comments#action_12455158 ] Tomohito Nakayama commented on DERBY-1471: ------------------------------------------
Thank you for your attention :) The answer is Optional. Layer B Streaming is optional and used only when lengthless methods were used under configuration of no encryption. Those lengthless method were introduced in JDBC4. // Spec of DRDA told that segmented object must be combined and decrypted as a single object for Encrypted Object DSS. // Then I think there are less benefit to using Layer B streaming in the encrypted case. Furthermore, Layer B streaming does not use length information for whole LOB , however it does use length information for each DSS segment. I read next parts as where relate : org.apache.derby.client.net.Request#finalizeDssLength() org.apache.derby.impl.drda.DDMReader#readDssHeader () > Implement layer B streaming for new methods defined in JDBC4.0 > -------------------------------------------------------------- > > Key: DERBY-1471 > URL: http://issues.apache.org/jira/browse/DERBY-1471 > Project: Derby > Issue Type: New Feature > Components: Network Client > Reporter: Tomohito Nakayama > Assigned To: Tomohito Nakayama > Attachments: DERBY-1471.diff, DERBY-1471.patch, DERBY-1471.stat, > DERBY-1471_2.patch, DERBY-1471_2.stat > > > JDBC 4.0 introduced new methods which take parameters for object to be sent > to sever without length information. > For those methods, Layer B streaming is best way to implement sending object > to server. > This issue is representation of DERBY-1417 in Network Client. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://issues.apache.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira
