By adding "@Transient" above the collection causes the Exception to go away but it is not saved permanently, Object returned upon initial svae seems to be positive but subsequent queries for the same object returns null.
Any ideas? On Tuesday, June 3, 2014 4:23:34 PM UTC+1, [email protected] wrote: > > I have a Jpa entity which also acts as a Neo4j cross store. Most of the > fields in the entity are saved to Mysql database except the Collection > 'followers', which is stored in Neo4j. The problem is with the Collection > 'followers'. it throws the exception "hibernate MappingException: Could not > determine type for: java.util.Set". A quick search yields a bunch of Jpa > Related solutions (e.g. adding onetomany annotation to the field etc) which > I assume is not relevant in this case because the collection is saved in > Neo4j not Mysql. > > StacktraceCaused by: org.hibernate.MappingException: Could not determine type > for: java.util.Set, at table: game, for columns: > [org.hibernate.mapping.Column(followers)] > at org.hibernate.mapping.SimpleValue.getType(SimpleValue.java:314) > at org.hibernate.mapping.SimpleValue.isValid(SimpleValue.java:292) > at org.hibernate.mapping.Property.isValid(Property.java:239) > at > org.hibernate.mapping.PersistentClass.validate(PersistentClass.java:469) > at org.hibernate.mapping.RootClass.validate(RootClass.java:270) > at org.hibernate.cfg.Configuration.validate(Configuration.java:1303) > at > org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1761) > at > org.hibernate.ejb.EntityManagerFactoryImpl.<init>(EntityManagerFactoryImpl.java:96) > at > org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:914) > ... 16 more > -------@Entity@Table(name="game")@NodeEntity(partial = true)public class Game > implements Serializable{ > private static final long serialVersionUID = 1L; > > @RelatedTo(type="GAME", direction=Direction.INCOMING, elementClass = > Account.class) > @Fetch > > @GraphProperty > private Set<Account> followers = new HashSet<Account>(); > > > > @Id > @GeneratedValue(strategy=IDENTITY) > @Column(name="game_id") > private Long gameId; > @Column(name="name",unique=true) > private String name; .... > > //Accessors > > public Long getGameId() { > return gameId; > } > > > > public void setGameId(Long gameId) { > this.gameId = gameId; > }... > @Override > public String toString(){ > return "..."; > } > > > } > Neo4j Config > @Configuration > @ComponentScan(basePackages={".."})@EnableTransactionManagement(mode=AdviceMode.ASPECTJ)@EnableNeo4jRepositories(value={".."})public > class Neo4JConfig extends Neo4jConfiguration{ > > @Bean(destroyMethod = "shutdown") > @Scope(SCOPE_PROTOTYPE) > public SpringRestGraphDatabase graphDatabaseService(){ > SpringRestGraphDatabase springRestGraphDatabase = new > SpringRestGraphDatabase("http://localhost:7474/db/data";); > return springRestGraphDatabase; > > } > @Bean > public Neo4jTemplate neo4jTemplate(){ > return new Neo4jTemplate((GraphDatabase) graphDatabaseService()); > } > > @Bean > public Neo4jMappingContext neo4jMappingContext() { > return new Neo4jMappingContext(); > }} > > -- You received this message because you are subscribed to the Google Groups "Neo4j" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
