How can i persist a file as BLOB?

joha0123 — Thu, 26 May 2016 16:59:17 -0400

Hi,

i am using the primefaces fileupload widget, so users can upload attatchment files. right now, i save the files on the filesystem and i persist the path to the file in the database.

is there a way to save files as BLOB in relational database?

Thank you for your answers!

How can I add a List to a database

joha0123 — Wed, 20 Apr 2016 16:25:00 -0400

I am filling a List and then I try to write it to the database. We have two Entity Classes: Application and Education. The relationship is 1:N. (One application can have many educations)

In the Application entity class I have created a List of Education with the relationship ONE_TO_MANY. Mapped by attribute is appl. In the Education entity class i have created a field appl with the relationship MANY_TO_ONE.

The Problem is, that i have to initialize all objects before i can write data into them. this is impossible to do, because the application Object has a Education object in it and the Education Object has a Application object in it.

Is there an other way to save my data to a database?

thanks.

Questions Tagged With ivy

How can i persist a file as BLOB?

How can I add a List to a database