[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-2680) Blobs not updated on Session.merge() for detached instances

[ http://opensource.atlassian.com/projects/hibernate/browse/HHH-2680?page=c... ] J. Ansorg commented on HHH-2680: -------------------------------- I also have hit this bug. Makes it pretty difficult to work with Hibernate and persisted binary data... I tracked this down to "core\src\main\java\org\hibernate\type\BlobType.java" in hibernate-core. The method merge is implemented like this: public Object replace(Object original, Object target, SessionImplementor session, Object owner, Map copyCache) throws HibernateException { //Blobs are ignored by merge() return target; } Which explains the bug ;) The same is valid for ClobType. I wanted to fix this and tried to build hibernate-core from Svn HEAD, but that failed due to strange maven-antlr-plugin dependencies and missing documentation. So I'm giving up here. It would be awesome if this could be fixed! Otherwise Blobs are quite unusable in Hibernate. A workaround is to use byte[] instead, but that isn't that memory friendly. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.... - For more information on JIRA, see: http://www.atlassian.com/software/jira