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

Example 6 with Relationship

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

the class RelationshipTest method whenRemovingRolePlayerFromRelationship_EnsureRolePlayerIsRemoved.

@Test
public void whenRemovingRolePlayerFromRelationship_EnsureRolePlayerIsRemoved() {
    Role role1 = tx.putRole("dark");
    Role role2 = tx.putRole("souls");
    RelationshipType relationshipType = tx.putRelationshipType("Dark Souls").relates(role1).relates(role2);
    EntityType entityType = tx.putEntityType("Dead Guys").plays(role1).plays(role2);
    Entity e1 = entityType.addEntity();
    Entity e2 = entityType.addEntity();
    Entity e3 = entityType.addEntity();
    Entity e4 = entityType.addEntity();
    Entity e5 = entityType.addEntity();
    Entity e6 = entityType.addEntity();
    Relationship relationship = relationshipType.addRelationship().addRolePlayer(role1, e1).addRolePlayer(role1, e2).addRolePlayer(role1, e3).addRolePlayer(role2, e4).addRolePlayer(role2, e5).addRolePlayer(role2, e6);
    assertThat(relationship.rolePlayers().collect(Collectors.toSet()), containsInAnyOrder(e1, e2, e3, e4, e5, e6));
    relationship.removeRolePlayer(role1, e2);
    relationship.removeRolePlayer(role2, e1);
    assertThat(relationship.rolePlayers().collect(Collectors.toSet()), containsInAnyOrder(e1, e3, e4, e5, e6));
    relationship.removeRolePlayer(role2, e6);
    assertThat(relationship.rolePlayers().collect(Collectors.toSet()), containsInAnyOrder(e1, e3, e4, e5));
}

Example 7 with Relationship

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

the class RelationshipTest method whenDeletingRelations_EnsureCastingsRemain.

@Test
public void whenDeletingRelations_EnsureCastingsRemain() {
    Role entityRole = tx.putRole("Entity Role");
    Role degreeRole = tx.putRole("Degree Role");
    EntityType entityType = tx.putEntityType("Entity Type").plays(entityRole);
    AttributeType<Long> degreeType = tx.putAttributeType("Attribute Type", AttributeType.DataType.LONG).plays(degreeRole);
    RelationshipType hasDegree = tx.putRelationshipType("Has Degree").relates(entityRole).relates(degreeRole);
    Entity entity = entityType.addEntity();
    Attribute<Long> degree1 = degreeType.putAttribute(100L);
    Attribute<Long> degree2 = degreeType.putAttribute(101L);
    Relationship relationship1 = hasDegree.addRelationship().addRolePlayer(entityRole, entity).addRolePlayer(degreeRole, degree1);
    hasDegree.addRelationship().addRolePlayer(entityRole, entity).addRolePlayer(degreeRole, degree2);
    assertEquals(2, entity.relationships().count());
    relationship1.delete();
    assertEquals(1, entity.relationships().count());
}

Example 8 with Relationship

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

the class RelationshipTest method ensureRelationToStringContainsRolePlayerInformation.

@Test
public void ensureRelationToStringContainsRolePlayerInformation() {
    Role role1 = tx.putRole("role type 1");
    Role role2 = tx.putRole("role type 2");
    RelationshipType relationshipType = tx.putRelationshipType("A relationship Type").relates(role1).relates(role2);
    EntityType type = tx.putEntityType("concept type").plays(role1).plays(role2);
    Thing thing1 = type.addEntity();
    Thing thing2 = type.addEntity();
    Relationship relationship = relationshipType.addRelationship().addRolePlayer(role1, thing1).addRolePlayer(role2, thing2);
    String mainDescription = "ID [" + relationship.getId() + "] Type [" + relationship.type().getLabel() + "] Roles and Role Players:";
    String rolerp1 = "    Role [" + role1.getLabel() + "] played by [" + thing1.getId() + ",]";
    String rolerp2 = "    Role [" + role2.getLabel() + "] played by [" + thing2.getId() + ",]";
    assertTrue("Relationship toString missing main description", relationship.toString().contains(mainDescription));
    assertTrue("Relationship toString missing role and role player definition", relationship.toString().contains(rolerp1));
    assertTrue("Relationship toString missing role and role player definition", relationship.toString().contains(rolerp2));
}

Example 9 with Relationship

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

the class RelationshipTest method whenAttributeLinkedToRelationshipIsInferred_EnsureItIsMarkedAsInferred.

@Test
public void whenAttributeLinkedToRelationshipIsInferred_EnsureItIsMarkedAsInferred() {
    AttributeType attributeType = tx.putAttributeType("Another thing of sorts", AttributeType.DataType.STRING);
    RelationshipType relationshipType = tx.putRelationshipType("A thing of sorts").attribute(attributeType);
    Attribute attribute = attributeType.putAttribute("Things");
    Relationship relationship = relationshipType.addRelationship();
    RelationshipImpl.from(relationship).attributeInferred(attribute);
    assertTrue(relationship.relationships().findAny().get().isInferred());
}

Example 10 with Relationship

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

the class RelationshipTest method whenAttemptingToLinkTheInstanceOfAResourceRelationToTheResourceWhichCreatedIt_ThrowIfTheRelationTypeDoesNotHavePermissionToPlayTheNecessaryRole.

@Test
public void whenAttemptingToLinkTheInstanceOfAResourceRelationToTheResourceWhichCreatedIt_ThrowIfTheRelationTypeDoesNotHavePermissionToPlayTheNecessaryRole() {
    AttributeType<String> attributeType = tx.putAttributeType("what a pain", AttributeType.DataType.STRING);
    Attribute<String> attribute = attributeType.putAttribute("a real pain");
    EntityType entityType = tx.putEntityType("yay").attribute(attributeType);
    Relationship implicitRelationship = Iterables.getOnlyElement(entityType.addEntity().attribute(attribute).relationships().collect(Collectors.toSet()));
    expectedException.expect(GraknTxOperationException.class);
    expectedException.expectMessage(GraknTxOperationException.hasNotAllowed(implicitRelationship, attribute).getMessage());
    implicitRelationship.attribute(attribute);
}