Hibernate OGM Neo4j -Unable to access TransactionManager - neo4j

Question

I trying to build a JSF WebApplication using Neo4j as No-SQL-Databasing. I want to access Neo4j via Hibernate.
My dependencies are
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.hibernate.ogm</groupId>
<artifactId>hibernate-ogm-bom</artifactId>
<version>5.0.1.Final</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.hibernate.ogm</groupId>
<artifactId>hibernate-ogm-neo4j</artifactId>
</dependency>
My entities look like the following
#Entity
public class Person implements Serializable {
private static final long serialVersionUID = 1L;
#Id
#GeneratedValue(generator = "uuid")
#GenericGenerator(name = "uuid", strategy = "uuid2")
private String id;
private String name;
private Double age;
#OneToMany(fetch = FetchType.EAGER, mappedBy = "owner", cascade = CascadeType.PERSIST)
private Set<Car> cars = new HashSet<>();
...
I save them within in the following class
#Stateless
public class StorageManager {
#PersistenceContext(unitName = "neo4j")
private EntityManager em;
public void savePerson(Person p) {
em.persist(p);
}
public void saveCar(Car c){
em.persist(c);
}
public void save(String personName, Double personAge, String carName) {
Person person = new Person(personName, personAge);
Car car = new Car(carName);
car.setOwner(person);
person.getCars().add(car);
em.persist(person);
}
My Persistence Unit
<persistence-unit name="mongo-ogm" transaction-type="JTA">
<provider>org.hibernate.ogm.jpa.HibernateOgmPersistence</provider>
<class>entities.Person</class>
<class>entities.Car</class>
<exclude-unlisted-classes>true</exclude-unlisted-classes>
<properties>
<property name="hibernate.ogm.datastore.provider" value="neo4j_embedded" />
<property name="hibernate.ogm.neo4j.database_path" value="C:\Users\phe\Documents\Neo4j\sample" />
</properties>
</persistence-unit>
When I deploy the WebApp on my Wildlfy 9 and want to save Data I get an Exception
org.hibernate.resource.transaction.backend.jta.internal.JtaPlatformInaccessibleException: Unable to access TransactionManager or UserTransaction to make physical transaction delegate
Researches in the internet ended with no result. There are only a few tutorials. I have tried it with and without transaction-type="JTA" .
Have you any ideas?

Answer 1

I found the solution. As I am deploying to Wildlfy I can add the following to my Persistence Unit.
<property name="hibernate.transaction.jta.platform" value="JBossAS" />
This works for me.