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Read/Write BLOB in byte[] with Hibernate in MySQL..

 
Shaan Shar
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Java Spring Ubuntu
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Hi Team,

I am using hibernate with MySQl(Mysql-5.0.5). I have a table with a column type BLOB. Corresponding bean in java has byte[] for this column. I am able to write blob sucessfully but not able to read the blob in byte[].


My Table(Person) looks like this
------------------------------------------
Field *************************Type
------------------------------------------
PERSON_ID *************************bigint(20)
age *************************int(11)
firstname *************************varchar(255)
lastname *************************varchar(255)
BYTE_DATE *************************blob
EVENT_DATE*************************datetime
TITLE *************************varchar(255)
EVENT_ID *************************bigint(20)
------------------------------------------



Here are my configuration files.
Hibernate.cfg.xml


Bean Configuration File is


My Bean Person is


Here is the code which I am trying to run is


Please let me know, if any other details are required...

Any help would be greatly appreciated!!!
Thanks
[ May 20, 2008: Message edited by: Ankur Sharma ]
 
Shaan Shar
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Ok one update from my side.

As I have already mentioned, I was able to write the blob in database.

I am also able to read blob in byte[] but when I am trying to cast it in my bean, it's giving me following exception

java.lang.ClassCastException: [Ljava.lang.Object; incompatible with events.Person


I have changed my bean(Person) and Hibernate.cgf.xml as follows.





Only change in above hibernate.cfg.xml is opting my own defined MySQLDialect. Here is my custome defined MySQLDialectExtended



Could anybody spare a little bit time on this problem and let me know, why t's still not automatically casting result in Person bean.

Any light would be appreciated.
Thanks
 
It is sorta covered in the JavaRanch Style Guide.
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