[ http://issues.apache.org/jira/browse/DERBY-782?page=comments#action_12361194 ]
Tomohito Nakayama commented on DERBY-782: ----------------------------------------- I have tried and found length information, which is ignored now, does not have correct value. [EMAIL PROTECTED]:~/derby/test/20051223$ runProgram.sh testLob4 Initializing jdb ... > stop at org.apache.derby.impl.jdbc.BinaryToRawStream:94 Deferring breakpoint org.apache.derby.impl.jdbc.BinaryToRawStream:94. It will be set after the class is loaded. > run run testLob4 Set uncaught java.lang.Throwable Set deferred uncaught java.lang.Throwable > VM Started: Set deferred breakpoint org.apache.derby.impl.jdbc.BinaryToRawStream:94 Breakpoint hit: "thread=main", org.apache.derby.impl.jdbc.BinaryToRawStream.<init>(), line=94 bci=252 94 int lenInBits = (((bl & 0xff) << 24) | ((v2 & 0xff) << 16) | ((v3 & 0xff) << 8) | (v4 & 0xff)); main[1] eval b1 com.sun.tools.example.debug.expr.ParseException: Name unknown: b1 b1 = null main[1] eval bl bl = 0 main[1] eval v2 v2 = 0 main[1] eval v3 v3 = 0 main[1] eval v4 v4 = 0 main[1] cont Here goes 1st stream 0 1 2 length:0 Here continue 1st stream 3 4 5 > The application exited > Improvement on org.apache.derby.impl.jdbc.EmbedBlob#length() > ------------------------------------------------------------ > > Key: DERBY-782 > URL: http://issues.apache.org/jira/browse/DERBY-782 > Project: Derby > Type: Bug > Components: JDBC > Reporter: Tomohito Nakayama > Attachments: testLob4.java > > Now, org.apache.derby.impl.jdbc.EmbedBlob#length() method read out whole > BinaryToRawStream to know exact length. > On the other hand, BinaryToRawStream have some commented-out inplementation > of having information for length. > I think the information of lengh in BinaryToRawStream should be restored to > be used in .org.apache.derby.impl.jdbc.EmbedBlob#length(), because read out > whole stream can be expensive processing when streamed information was large. > There exists a subject that reliability of lengh information in > BinaryToRawStream is unknown. -- 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
