there is a default one so you don't need if you use this one the constraint is the same as for bean validation, jaxrs...if you want another provider just shout specifying it
*Romain Manni-Bucau* *Twitter: @rmannibucau <https://twitter.com/rmannibucau>* *Blog: **http://rmannibucau.wordpress.com/*<http://rmannibucau.wordpress.com/> *LinkedIn: **http://fr.linkedin.com/in/rmannibucau* *Github: https://github.com/rmannibucau* 2013/2/22 James Green <[email protected]> > On a similar note, why must an app specify in persistence.xml which JPA > provider to use? > > It doesn't specify which JAX-RS provider to use... > > > > On 22 February 2013 13:47, Romain Manni-Bucau <[email protected]> > wrote: > > > Hi, > > > > good need: https://issues.apache.org/jira/browse/TOMEE-779 > > > > *Romain Manni-Bucau* > > *Twitter: @rmannibucau <https://twitter.com/rmannibucau>* > > *Blog: **http://rmannibucau.wordpress.com/*< > > http://rmannibucau.wordpress.com/> > > *LinkedIn: **http://fr.linkedin.com/in/rmannibucau* > > *Github: https://github.com/rmannibucau* > > > > > > > > 2013/2/22 Lazar Kirchev <[email protected]> > > > > > Hello, > > > > > > I would like to set eclipselink as the default persistence provider in > > > TomEE (which is done through system properties as I read in the > > > documentation), but still want to allow the applications to use other > > > providers (e.g. hibernate). > > > Is this possible? I see in the code that if the application specifies a > > > persistence provider in its persistence.xml, this is overriden by the > > value > > > of the system property, if one is set. > > > > > > Regars, > > > Lazar > > > > > >
