Re: [Neo4j] SDG 2.0.0.M1 cross-store does not work properly
Hi Michael thanks a lot for your hints,
below test which expose the problem. It seems as follows: after
deserialization entity state is null. Maybe this is acceptable behavior -
meaning entities are not supposed to be serializable, or it is an issue
which should be fixed?
I added this test case to WorldRepositoryTest in
spring-data-neo4j-hello-worlds-aspects project:
@Test
public void testSerialization() throws Exception {
World myWorld = new World( mine, 0 ).persist();
EntityStateNode entityState = myWorld.getEntityState();
assertNotNull(entityState);
IterableWorld foundWorlds = galaxy.findAll();
World mine = foundWorlds.iterator().next();
byte[] serializedWorld = SerializationUtils.serialize(mine);
World deserializedWorld = (World)
SerializationUtils.deserialize(serializedWorld);
assertNotNull(deserializedWorld);
EntityStateNode deserializedEntityState =
deserializedWorld.getEntityState();
assertNotNull(deserializedEntityState); //Test fails at this
assertion
template.save(deserializedWorld);//This invocation leads to NPE
since entityState is null
assertEquals(myWorld.getName(),deserializedWorld.getName());
}
Running similar operation in project with no aspectj doesn't lead to this
problem.
Thanks a lot for your feedback.
Greets from Berlin, Marcin
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Re: [Neo4j] SDG 2.0.0.M1 cross-store does not work properly
Hi Michael, thanks a lot for you fast response. I run the tests against SNAPSHOT and it works. I had also problems with mapping of enums and it works either now. Great job! thanks a lot. BTW: Could you point any docs or examples how to use alternative non-aspectj mapping approach, maybe this approach will hell solve the problem with serializing of domain object. Currently invoking persist() on deserialized object causes NPE, which is pretty problematic when working with wicket. Thanks a lot in advance Greets, Marcin -- View this message in context: http://neo4j-community-discussions.438527.n3.nabble.com/SDG-2-0-0-M1-cross-store-does-not-work-properly-tp3481372p3485361.html Sent from the Neo4j Community Discussions mailing list archive at Nabble.com. ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo4j] SDG 2.0.0.M1 cross-store does not work properly
There is are two examples in the current snapshot, hello-worlds and cineasts (w/o -*) Could you share the use-case + NPE that you've described? Thanks a lot Michael mh$ ls -1 spring-data-neo4j-examples/ cineasts [x] cineasts-aspects cineasts-rest hello-worlds [x] hello-worlds-aspects imdb myrestaurants-original myrestaurants-social Am 06.11.2011 um 22:33 schrieb Marcin Zasepa: Hi Michael, thanks a lot for you fast response. I run the tests against SNAPSHOT and it works. I had also problems with mapping of enums and it works either now. Great job! thanks a lot. BTW: Could you point any docs or examples how to use alternative non-aspectj mapping approach, maybe this approach will hell solve the problem with serializing of domain object. Currently invoking persist() on deserialized object causes NPE, which is pretty problematic when working with wicket. Thanks a lot in advance Greets, Marcin -- View this message in context: http://neo4j-community-discussions.438527.n3.nabble.com/SDG-2-0-0-M1-cross-store-does-not-work-properly-tp3481372p3485361.html Sent from the Neo4j Community Discussions mailing list archive at Nabble.com. ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo4j] SDG 2.0.0.M1 cross-store does not work properly
March,
could you try to test this on snapshot?
I solved an issue regarding that.
I'll add the test you mentioned as well
Thanks for the feedback.
Michael
mobile mail please excuse brevity and typos
Am 04.11.2011 um 23:00 schrieb Marcin Zasepa se...@vp.pl:
Hi guys,
i just migrated from SDG 1.1 to 2.0.0.M1 and I am facing problem with
cross-store functionality. I have some entities which are partially stored
in Neo and partially in rdbms. Everything works ok so far entity class has
only primitive members or sets of other entities mapped using @RelatedTo
annotation. Problems begin if I have one entity /A/ with partial=true which
refers with @OneToMany another entity /B/ which is pure JPA entity. Trying
to save entity *A *i get an exception: Type class B is neither a
@NodeEntity nor a @RelationshipEntity.This kind of mappings worked properly
with SDG 1.1. In order to reproduce this problem in environment independent
from my application i add simple relation to the User test class in
spring-data-neo4j-cross-store tests:
@Entity
@NodeEntity(partial = true)
public class User {
.
@OneToMany(mappedBy=user)
private SetLocation locations;
}
, where Location class is defined as follows:
@Entity
@Table(name = LOCATION)
public class Location {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@Column(name = id)
private Long id;
@ManyToOne
@JoinColumn(name=userId)
private User user;
}
Running ReccomendationTest after this changes, causes that the first test
fails with an exception:
org.springframework.data.neo4j.mapping.InvalidEntityTypeException: Type
class org.springframework.data.neo4j.partial.Location is neither a
@NodeEntity nor a @RelationshipEntity. What is even more interesting is that
it happens only to the first run test, that is why two other test are not
failing but if i invoke only one test for example the second one:
jpaUserCanHaveGraphProperties then it fails with the same exception.
Could you have a look on that and let me know if I am something changed in
SDG 2.0 or it is indeed bug.
Thanks in advance! Greets.
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[Neo4j] SDG 2.0.0.M1 cross-store does not work properly
Hi guys,
i just migrated from SDG 1.1 to 2.0.0.M1 and I am facing problem with
cross-store functionality. I have some entities which are partially stored
in Neo and partially in rdbms. Everything works ok so far entity class has
only primitive members or sets of other entities mapped using @RelatedTo
annotation. Problems begin if I have one entity /A/ with partial=true which
refers with @OneToMany another entity /B/ which is pure JPA entity. Trying
to save entity *A *i get an exception: Type class B is neither a
@NodeEntity nor a @RelationshipEntity.This kind of mappings worked properly
with SDG 1.1. In order to reproduce this problem in environment independent
from my application i add simple relation to the User test class in
spring-data-neo4j-cross-store tests:
@Entity
@NodeEntity(partial = true)
public class User {
.
@OneToMany(mappedBy=user)
private SetLocation locations;
}
, where Location class is defined as follows:
@Entity
@Table(name = LOCATION)
public class Location {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@Column(name = id)
private Long id;
@ManyToOne
@JoinColumn(name=userId)
private User user;
}
Running ReccomendationTest after this changes, causes that the first test
fails with an exception:
org.springframework.data.neo4j.mapping.InvalidEntityTypeException: Type
class org.springframework.data.neo4j.partial.Location is neither a
@NodeEntity nor a @RelationshipEntity. What is even more interesting is that
it happens only to the first run test, that is why two other test are not
failing but if i invoke only one test for example the second one:
jpaUserCanHaveGraphProperties then it fails with the same exception.
Could you have a look on that and let me know if I am something changed in
SDG 2.0 or it is indeed bug.
Thanks in advance! Greets.
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