Does PTC ThingWorx platform support java enterprise application and database porting?

Hello Folk's,

Just wanted to know whether IOT based ThingWorx platform supports in-production Java application and database porting.

I had already worked on Google App Engine and it supports database(with data dump) porting available for selected DB with Crystal Reports.

What all needs to be done if I am having Java rest api based project and port it to ThingWorx platform to utilize M2M communication.

Help me on this!

Thanks