Examples with Relationship ai.grakn.concept.Relationship used on opensource projects

Example 26 with Relationship

use of ai.grakn.concept.Relationship in project grakn by graknlabs.

the class RelationshipTypePropertyTest method whenAddingARelation_TheRelationHasNoResources.

@Property
public void whenAddingARelation_TheRelationHasNoResources(@NonMeta @NonAbstract RelationshipType type) {
    Relationship relationship = type.addRelationship();
    assertThat(relationship.attributes().collect(toSet()), empty());
}

Example 27 with Relationship

use of ai.grakn.concept.Relationship in project grakn by graknlabs.

the class RelationshipTypePropertyTest method whenAddingARelation_TheRelationHasNoRolePlayers.

@Property
public void whenAddingARelation_TheRelationHasNoRolePlayers(@NonMeta @NonAbstract RelationshipType type) {
    Relationship relationship = type.addRelationship();
    assertThat(relationship.rolePlayers().collect(toSet()), empty());
}

Example 28 with Relationship

use of ai.grakn.concept.Relationship in project grakn by graknlabs.

the class DegreeTest method testRelationshipPlaysARole.

@Test
public void testRelationshipPlaysARole() throws InvalidKBException {
    Role pet = tx.putRole("pet");
    Role owner = tx.putRole("owner");
    RelationshipType mansBestFriend = tx.putRelationshipType("mans-best-friend").relates(pet).relates(owner);
    EntityType person = tx.putEntityType("person").plays(owner);
    EntityType animal = tx.putEntityType("animal").plays(pet);
    Role ownership = tx.putRole("ownership");
    Role ownershipResource = tx.putRole("ownership-resource");
    RelationshipType hasOwnershipResource = tx.putRelationshipType("has-ownership-resource").relates(ownership).relates(ownershipResource);
    AttributeType<String> startDate = tx.putAttributeType("start-date", AttributeType.DataType.STRING);
    startDate.plays(ownershipResource);
    mansBestFriend.plays(ownership);
    // add instances
    Entity coco = animal.addEntity();
    Entity dave = person.addEntity();
    Relationship daveOwnsCoco = mansBestFriend.addRelationship().addRolePlayer(owner, dave).addRolePlayer(pet, coco);
    Attribute aStartDate = startDate.putAttribute("01/01/01");
    hasOwnershipResource.addRelationship().addRolePlayer(ownershipResource, aStartDate).addRolePlayer(ownership, daveOwnsCoco);
    Map<Long, Set<String>> referenceDegrees = new HashMap<>();
    referenceDegrees.put(1L, Sets.newHashSet(coco.getId().getValue(), dave.getId().getValue(), aStartDate.getId().getValue(), daveOwnsCoco.getId().getValue()));
    tx.commit();
    try (GraknTx graph = session.open(GraknTxType.READ)) {
        Map<Long, Set<String>> degrees = graph.graql().compute().centrality().usingDegree().execute();
        assertEquals(referenceDegrees, degrees);
    }
}

Example 29 with Relationship

use of ai.grakn.concept.Relationship in project grakn by graknlabs.

the class RelationshipTypePropertyTest method whenAddingARelation_TheDirectTypeOfTheRelationIsTheTypeItWasCreatedFrom.

@Property
public void whenAddingARelation_TheDirectTypeOfTheRelationIsTheTypeItWasCreatedFrom(@NonMeta @NonAbstract RelationshipType type) {
    Relationship relationship = type.addRelationship();
    assertEquals(type, relationship.type());
}

Example 30 with Relationship

use of ai.grakn.concept.Relationship in project grakn by graknlabs.

the class RelationshipTypePropertyTest method whenAddingARelation_TheRelationIsInNoRelations.

@Property
public void whenAddingARelation_TheRelationIsInNoRelations(@NonMeta @NonAbstract RelationshipType type) {
    Relationship relationship = type.addRelationship();
    assertThat(relationship.relationships().collect(toSet()), empty());
}