Using a database as the table model for a large JTable

I have a swing application with a Jxtable (Jtable with extra features from swingx project) that displays the details of music files, album, artist ... . The data model is held in memory and unfortunately because there are 70 different columns and users a re tyrying to load their complete music collection (e.g 100,000 files) I am having memory issues.
I am now considering backing the data with a database and possibly using Hibernate. Do you think this is feasible or would it run too slowly, has anybody done this ?
The first issue is whether rows can be retrieved quickly enough as a user scrolls down a table , I thinking that if I use hibernate in conjunction with a database Iit caching will ome into play but will that solve the issue.
Also colums are sortable, so if a user clicked on a column it would somehow need access to every row in order to sort correctly.
Although the table column can have seventy columns by default only ten are shown, however the other sixty are still stored in the tables data model using valuable memory so I think I could grab some memory back here, but then if they decide to show the other 60 columns it could blow memory in one go.
I also considered using some kind of paging mechanism so that even if there were 100,000 rows loaded , only a 1000 were loaded into a table in one go, and you get to the bottom of the table the next 1000 are loaded, is this feasible I cannot work out how to even make a start on this.
thanks for any advice

A few things to check:
1. make sure your AS GroupRoleID class has RemoteClass
metadata like so:
[RemoteClass(alias="qa.data.inMemory.PlayerID")]
public class PlayerID extends Object {
2. make sure your AS GroupRoleID class is used in your mxml
file by declaring at least one variable of that type (even if you
don't instantiate or use it)
3. make sure your AS GroupRoleID class has a toString()
method that includes the roleId and groupId values to ensure each
instance returns a unique value.
When records appear to have matching identities this can
happen. Sometimes it can be because of an incorrect identity in
your destination but also if the object's toString() always returns
the same value (default being [object Type]).
I'm writing up a bug to look for a better way of ensuring
this uniqueness in the future.

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