If I enlist multiple resources, e.g. JDBC and the JMS provider
as a resource to participate in a distributed transaction, from
the producer's perspective, can I assume that the transaction
will fail or succeed for both the database that the JDBC updates
and the system that the JMS adapter updates?

For example, if I used JDBC to update a DB, and I
used JMS to update my ERP system in a single transaction,
can I assume that either both the ERP system and the DB
would either succeed or fail together?