took for a test-drive and runs great! Thanks Krisitian, Rick for the fast response and fix!
kashyup Rick Hillegas-2 wrote: > > Hi Kashyup, > > At the risk of being pedantic, I just wanted to point out that Kristian > has posted a candidate fix but he hasn't checked it in yet. It would be > great if you could take the fix for a test-drive and let us know if it > solves your problem. You will need to do the following: > > 1) Check out the trunk using subversion. > > 2) Apply Kristian's fix using the "patch" utility. > > 3) Build the code. > > If you need help figuring out how to do this, let us know. > > Thanks, > -Rick > > kashyup wrote: >> Hi Kristian, >> Looking at the jira: https://issues.apache.org/jira/browse/DERBY-4278 >> https://issues.apache.org/jira/browse/DERBY-4278 >> seems like you have fixed the issue. >> >> Previously I downloaded Derby 10.5.1.1 >> >> What would be the best way to get this fix? Should I do a check out from >> the >> Development Trunk? >> >> thanks >> >> Kashyup >> >> >> >> >> Kristian Waagan-4 wrote: >> >>> kashyup wrote: >>> >>>> Hello all, >>>> We have just started to look into Derby as our embedded DB for a >>>> desktop >>>> app >>>> version. >>>> >>>> Env: Hibernate 3.2 and Derby 10.5.1 >>>> >>>> I have defined a java string field of type 'text' in Hibernate Mapping >>>> (works great on Postgres 8.1 and Oracle 10g) >>>> >>>> I use Hibernate SessionFactory to generate Table schema, which is done >>>> without any error. >>>> >>>> But, when I try to save records in tables via Hibernate Session, I get >>>> the >>>> following exception: >>>> Note: If I change hibernate mapping to type 'string', then I dont get >>>> this >>>> error: >>>> >>>> java.lang.IllegalStateException: No context, unable to determine which >>>> stream header format to generate >>>> at >>>> org.apache.derby.iapi.types.ClobStreamHeaderGenerator.determineMode(Unknown >>>> Source) >>>> at >>>> org.apache.derby.iapi.types.ClobStreamHeaderGenerator.expectsCharCount(Unknown >>>> Source) >>>> at org.apache.derby.iapi.types.ReaderToUTF8Stream.fillBuffer(Unknown >>>> Source) >>>> at org.apache.derby.iapi.types.ReaderToUTF8Stream.read(Unknown Source) >>>> at java.io.DataInputStream.read(Unknown Source) >>>> at org.apache.derby.iapi.types.SQLClob.readExternal(Unknown Source) >>>> at org.apache.derby.iapi.types.SQLChar.getString(Unknown Source) >>>> at org.apache.derby.iapi.types.SQLClob.getClone(Unknown Source) >>>> at org.apache.derby.impl.sql.GenericParameter.getClone(Unknown Source) >>>> at org.apache.derby.impl.sql.GenericParameterValueSet.<init>(Unknown >>>> Source) >>>> at org.apache.derby.impl.sql.GenericParameterValueSet.getClone(Unknown >>>> Source) >>>> at org.apache.derby.impl.jdbc.EmbedPreparedStatement.addBatch(Unknown >>>> Source) >>>> at >>>> org.hibernate.jdbc.BatchingBatcher.addToBatch(BatchingBatcher.java:31) >>>> at >>>> org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2252) >>>> at >>>> org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2665) >>>> >>>> Also, I need to save it as type 'text' even though it gets saved as >>>> CLOB(255), as the CLOB column size can later be altered. >>>> >>>> What could be the cause? or changes needed? >>>> >>>> >>> Hello, >>> >>> You have discovered / triggered a bug in the new Clob handling code >>> introduced in 10.5.1. >>> I logged DERBY-4278 [1], and have started working on a fix (the >>> regression tests are running, patch needs review). >>> >>> Regarding workarounds, I'm afraid all I can think of is using the client >>> driver instead of the embedded driver, avoid batching for inserts with >>> Clobs, change the data type, or downgrade to 10.4. Another option is to >>> build Derby with the patch and test it out :) >>> I observe that you are using very small Clobs (255 characters). Clobs >>> are in general less effective than using for instance VARCHAR. >>> Is your concern about altering the column size related to Derby, >>> Hibernate or something else? >>> >>> >>> Regards, >>> -- >>> Kristian >>> >>> [1] https://issues.apache.org/jira/browse/DERBY-4278 >>> >>>> thanks all >>>> >>>> >>>> >>>> >>> >>> >> >> > > > -- View this message in context: http://www.nabble.com/Hibernate-%2B-Derby---Unable-to-determine-stream-header-for-hibernate-type-%27text%27-tp24099674p24175219.html Sent from the Apache Derby Users mailing list archive at Nabble.com.
