Relation is not returning while defining self-referential nodes in SDN (Spring Data Neo4J)
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We are generating 48 hour projection data using 6 months historical network traffic data. The final projection data is loaded into Neo4J to support a front end web application where users can search a server and see its future communication/data transfers with other servers within the organization. We defined a Host node and relations 1 to 48 hrs (1H, 2H, 3H....48H). The following regular cypher query works fine and returns data with relation information.
MATCH p=(parent:HOST)-[r]->(child:HOST)
WHERE parent.HOST_NAME = " "
RETURN p, type(r)
But, the SDN (Spring Data Neo4j) setup is not returning relation info. The node entity is defined as follows.
@NodeEntity
public class Host {
@GraphId
private Long id;
private String Host_Name;
@Relationship(type="")
private List<Host> hosts;
public List<Host> getHosts() {
return hosts;
}
public Long getId() {
return id;
}
public String getName() {
return Host_Name;
}
}
And repository defined as
public interface HostRepository extends Neo4jRepository<Host, Long> {
@Query("MATCH p=(parent:Host)<-[r:`28H`]-(child:Host) WHERE parent.Host_Name = "pserver_01" RETURN p, type(r)")
Collection<Host> getAllHosts();
}
The hourly relation info (type(r)) is not returning from the spring data neo4j repository.
Are node and relation definitions correct? Am I missing something here?
Any help would be appreciated...
neo4j spring-data-neo4
edited Nov 9 at 22:28
cybersam
38.5k43151
asked Nov 9 at 16:00
Raj
1
add a comment |
up vote
0
down vote
favorite
We are generating 48 hour projection data using 6 months historical network traffic data. The final projection data is loaded into Neo4J to support a front end web application where users can search a server and see its future communication/data transfers with other servers within the organization. We defined a Host node and relations 1 to 48 hrs (1H, 2H, 3H....48H). The following regular cypher query works fine and returns data with relation information.
MATCH p=(parent:HOST)-[r]->(child:HOST)
WHERE parent.HOST_NAME = " "
RETURN p, type(r)
But, the SDN (Spring Data Neo4j) setup is not returning relation info. The node entity is defined as follows.
@NodeEntity
public class Host {
@GraphId
private Long id;
private String Host_Name;
@Relationship(type="")
private List<Host> hosts;
public List<Host> getHosts() {
return hosts;
}
public Long getId() {
return id;
}
public String getName() {
return Host_Name;
}
}
And repository defined as
public interface HostRepository extends Neo4jRepository<Host, Long> {
@Query("MATCH p=(parent:Host)<-[r:`28H`]-(child:Host) WHERE parent.Host_Name = "pserver_01" RETURN p, type(r)")
Collection<Host> getAllHosts();
}
The hourly relation info (type(r)) is not returning from the spring data neo4j repository.
Are node and relation definitions correct? Am I missing something here?
Any help would be appreciated...
neo4j spring-data-neo4
edited Nov 9 at 22:28
cybersam
38.5k43151
asked Nov 9 at 16:00
Raj
1
add a comment |
up vote
0
down vote
favorite
up vote
0
down vote
favorite
We are generating 48 hour projection data using 6 months historical network traffic data. The final projection data is loaded into Neo4J to support a front end web application where users can search a server and see its future communication/data transfers with other servers within the organization. We defined a Host node and relations 1 to 48 hrs (1H, 2H, 3H....48H). The following regular cypher query works fine and returns data with relation information.
MATCH p=(parent:HOST)-[r]->(child:HOST)
WHERE parent.HOST_NAME = " "
RETURN p, type(r)
But, the SDN (Spring Data Neo4j) setup is not returning relation info. The node entity is defined as follows.
@NodeEntity
public class Host {
@GraphId
private Long id;
private String Host_Name;
@Relationship(type="")
private List<Host> hosts;
public List<Host> getHosts() {
return hosts;
}
public Long getId() {
return id;
}
public String getName() {
return Host_Name;
}
}
And repository defined as
public interface HostRepository extends Neo4jRepository<Host, Long> {
@Query("MATCH p=(parent:Host)<-[r:`28H`]-(child:Host) WHERE parent.Host_Name = "pserver_01" RETURN p, type(r)")
Collection<Host> getAllHosts();
}
The hourly relation info (type(r)) is not returning from the spring data neo4j repository.
Are node and relation definitions correct? Am I missing something here?
Any help would be appreciated...
neo4j spring-data-neo4
edited Nov 9 at 22:28
cybersam
38.5k43151
asked Nov 9 at 16:00
Raj
1
We are generating 48 hour projection data using 6 months historical network traffic data. The final projection data is loaded into Neo4J to support a front end web application where users can search a server and see its future communication/data transfers with other servers within the organization. We defined a Host node and relations 1 to 48 hrs (1H, 2H, 3H....48H). The following regular cypher query works fine and returns data with relation information.
MATCH p=(parent:HOST)-[r]->(child:HOST)
WHERE parent.HOST_NAME = " "
RETURN p, type(r)
But, the SDN (Spring Data Neo4j) setup is not returning relation info. The node entity is defined as follows.
@NodeEntity
public class Host {
@GraphId
private Long id;
private String Host_Name;
@Relationship(type="")
private List<Host> hosts;
public List<Host> getHosts() {
return hosts;
}
public Long getId() {
return id;
}
public String getName() {
return Host_Name;
}
}
And repository defined as
public interface HostRepository extends Neo4jRepository<Host, Long> {
@Query("MATCH p=(parent:Host)<-[r:`28H`]-(child:Host) WHERE parent.Host_Name = "pserver_01" RETURN p, type(r)")
Collection<Host> getAllHosts();
}
The hourly relation info (type(r)) is not returning from the spring data neo4j repository.
Are node and relation definitions correct? Am I missing something here?
Any help would be appreciated...
neo4j spring-data-neo4
neo4j spring-data-neo4
edited Nov 9 at 22:28
cybersam
38.5k43151
asked Nov 9 at 16:00
Raj
1
edited Nov 9 at 22:28
cybersam
38.5k43151
asked Nov 9 at 16:00
Raj
1
edited Nov 9 at 22:28
cybersam
38.5k43151
edited Nov 9 at 22:28
cybersam
38.5k43151
edited Nov 9 at 22:28
cybersam
38.5k43151
38.5k43151
asked Nov 9 at 16:00
Raj
1
asked Nov 9 at 16:00
Raj
1
asked Nov 9 at 16:00
Raj
1
1
add a comment |
add a comment |
1 Answer
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Those empty strings you use are really odd. I don't think empty relationship-types work.
By default the direction is OUTGOING, if you want to see both you have to specify direction=BOTH in the annotation.
In your repository example you need to use a projection or @QueryResult to see the type(r) AS type column.
answered Nov 10 at 16:07
Michael Hunger
36.1k33661
add a comment |
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1 Answer
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1 Answer
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active
oldest
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active
oldest
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active
oldest
votes
up vote
0
down vote
Those empty strings you use are really odd. I don't think empty relationship-types work.
By default the direction is OUTGOING, if you want to see both you have to specify direction=BOTH in the annotation.
In your repository example you need to use a projection or @QueryResult to see the type(r) AS type column.
answered Nov 10 at 16:07
Michael Hunger
36.1k33661
add a comment |
up vote
0
down vote
Those empty strings you use are really odd. I don't think empty relationship-types work.
By default the direction is OUTGOING, if you want to see both you have to specify direction=BOTH in the annotation.
In your repository example you need to use a projection or @QueryResult to see the type(r) AS type column.
answered Nov 10 at 16:07
Michael Hunger
36.1k33661
add a comment |
up vote
0
down vote
up vote
0
down vote
Those empty strings you use are really odd. I don't think empty relationship-types work.
By default the direction is OUTGOING, if you want to see both you have to specify direction=BOTH in the annotation.
In your repository example you need to use a projection or @QueryResult to see the type(r) AS type column.
answered Nov 10 at 16:07
Michael Hunger
36.1k33661
Those empty strings you use are really odd. I don't think empty relationship-types work.
By default the direction is OUTGOING, if you want to see both you have to specify direction=BOTH in the annotation.
In your repository example you need to use a projection or @QueryResult to see the type(r) AS type column.
answered Nov 10 at 16:07
Michael Hunger
36.1k33661
answered Nov 10 at 16:07
Michael Hunger
36.1k33661
answered Nov 10 at 16:07
Michael Hunger
36.1k33661
answered Nov 10 at 16:07
Michael Hunger
36.1k33661
36.1k33661
add a comment |
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