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[MessaoudMohamed]

How can i change the HSQLBD with orientdb Graph ? Thank you

[eh3rrera]

Hi @messaoudmoha,

I can't help you much because I don't know about graph databases. Well, I read a little bit on its website and I see that is like a hybrid document database that can connect documents like a relational database, so I don't know for sure if a direct mapping (user table -> user document) could work.

What I can tell you is that:

• You can find the structure of this application's database in src/main/resources/sql.
• You will have to add the driver for the OrientedDB database.
• You will have to change the implementation of com/minitwit/dao/impl/MessageDaoImpl.java and com/minitwit/dao/impl/UserDaoImpl.java so the methods of those DAOs can work with OrientDB without breaking the interface contract (if a method returns a list of User objects, somehow the new implementation has to return it too).
• You will have to change the dataSource() method of com/minitwit/config/DatabaseConfig.java so it returns a data source to an OrientDB database.

Sorry, I cannot help you with more implementation details because I don't know this database, but let me know if this helps you.