I have two entities Person and Building. Both are related by two relationship entities "PERSON_HAS_ACCESS"(mutiple persons can access multiple buildings) and "PERSON_OWNS" (one Building can be owned by only one person, but a person can own multiple buildings). I am able to persist more than one relationship (2 to be specific) of each type and can see in the neo4j browser also. However, when I access the Person entity using the session API:
session.loadAll(klazz, new Filter("uuid", uuid), 1).getAccessRelations.size()
always reurns back 1, not matter how many relationships it has.
I always get only one relationship back.
Here is my domain model. I added equals and hashcode, but issue still happens. Moreover, i tried having only one relationship, but again the issue is same. Its driving me crazy!!. Any help would be appreciated.
@NodeEntity
public class Building {
@GraphId
private Long id;
private String uuid;
@Relationship(type = "PERSON_OWNS", direction = Relationship.INCOMING)
private OwnsBuilding ownsRelation;
@Relationship(type = "PERSON_HAS_ACCESS", direction = Relationship.INCOMING)
private Collection<CanAccess> accessRelations = new HashSet<CanAccess>();
public Collection<CanAccess> getAccessRelations() {
return accessRelations;
}
public Building setAccessRelations(Collection<CanAccess> accessRelations) {
this.accessRelations = accessRelations;
return this;
}
public String getUuid() {
return uuid;
}
public Building setUuid(String uuid) {
this.uuid = uuid;
return this;
}
public OwnsBuilding getOwnsRelation() {
return ownsRelation;
}
public Building setOwnsRelation(OwnsBuilding ownsRelation) {
this.ownsRelation = ownsRelation;
return this;
}
@Override
public boolean equals(Object obj) {
if (obj == null || !(obj instanceof Building)) return false;
if(id == null) return false;
return obj == this || this.id.equals(((Building) obj).id);
}
@Override
public int hashCode() {
return id != null ? id.hashCode() : super.hashCode();
}
}
@NodeEntity
public class Person {
private String uuid;
@GraphId
private Long id;
@Relationship(type = "PERSON_HAS_ACCESS", direction = Relationship.OUTGOING)
private Collection<CanAccess> accessRelations = new HashSet<CanAccess>();
@Relationship(type = "PERSON_OWNS", direction = Relationship.OUTGOING)
private Collection<OwnsBuilding> ownsRelations = new HashSet<OwnsBuilding>();
public Collection<CanAccess> getAccessRelations() {
return accessRelations;
}
public Person setAccessRelations(Collection<CanAccess> accessRelations) {
this.accessRelations = accessRelations;
return this;
}
public String getUuid() {
return uuid;
}
public Person setUuid(String uuid) {
this.uuid = uuid;
return this;
}
public Collection<OwnsBuilding> getOwnsRelations() {
return ownsRelations;
}
public Person setOwnsRelations(Collection<OwnsBuilding> ownsRelations) {
this.ownsRelations = ownsRelations;
return this;
}
@Override
public boolean equals(Object obj) {
if (obj == null || !(obj instanceof Person)) return false;
if (id == null) return false;
return obj == this || this.id.equals(((Person) obj).id);
}
@Override
public int hashCode() {
return id != null ? id.hashCode() : super.hashCode();
}
}
@RelationshipEntity(type = "PERSON_HAS_ACCESS")
public class CanAccess {
@GraphId
private Long id;
@StartNode
private Person person;
public CanAccess(){}
public CanAccess(Person person, Building building) {
this.person = person;
this.building = building;
}
@EndNode
private Building building;
public Person getPerson() {
return person;
}
public CanAccess setPerson(Person person) {
this.person = person;
return this;
}
public Building getBuilding() {
return building;
}
public CanAccess setBuilding(Building building) {
this.building = building;
return this;
}
@Override
public boolean equals(Object obj) {
if (obj == null || !(obj instanceof CanAccess)) return false;
if (id == null) return false;
return obj == this || this.id.equals(((CanAccess) obj).id);
}
@Override
public int hashCode() {
return id != null ? id.hashCode() : super.hashCode();
}
}
@RelationshipEntity(type = "PERSON_OWNS")
public class OwnsBuilding {
@GraphId
private Long id;
public OwnsBuilding() {
}
public OwnsBuilding(Person owner, Building building) {
this.owner = owner;
this.building = building;
}
@StartNode
private Person owner;
@EndNode
private Building building;
public Person getOwner() {
return owner;
}
public OwnsBuilding setOwner(Person owner) {
this.owner = owner;
return this;
}
public Building getBuilding() {
return building;
}
public OwnsBuilding setBuilding(Building building) {
this.building = building;
return this;
}
@Override
public boolean equals(Object obj) {
if (obj == null || !(obj instanceof OwnsBuilding)) return false;
if (id == null) return false;
return obj == this || this.id.equals(((OwnsBuilding) obj).id);
}
@Override
public int hashCode() {
return id != null ? id.hashCode() : super.hashCode();
}
}
