Examples with UniquenessConstraintDescriptor org.neo4j.kernel.api.schema_new.constaints.UniquenessConstraintDescriptor used on opensource projects

Example 1 with UniquenessConstraintDescriptor

use of org.neo4j.kernel.api.schema_new.constaints.UniquenessConstraintDescriptor in project neo4j by neo4j.

the class TxStateTest method shouldAddUniquenessConstraint.

@Test
public void shouldAddUniquenessConstraint() throws Exception {
    // when
    UniquenessConstraintDescriptor constraint = ConstraintDescriptorFactory.uniqueForLabel(1, 17);
    state.constraintDoAdd(constraint, 7);
    // then
    ReadableDiffSets<ConstraintDescriptor> diff = state.constraintsChangesForLabel(1);
    assertEquals(singleton(constraint), diff.getAdded());
    assertTrue(diff.getRemoved().isEmpty());
}

Example 2 with UniquenessConstraintDescriptor

use of org.neo4j.kernel.api.schema_new.constaints.UniquenessConstraintDescriptor in project neo4j by neo4j.

the class TxStateTest method addingUniquenessConstraintShouldBeIdempotent.

@Test
public void addingUniquenessConstraintShouldBeIdempotent() throws Exception {
    // given
    UniquenessConstraintDescriptor constraint1 = ConstraintDescriptorFactory.uniqueForLabel(1, 17);
    state.constraintDoAdd(constraint1, 7);
    // when
    UniquenessConstraintDescriptor constraint2 = ConstraintDescriptorFactory.uniqueForLabel(1, 17);
    state.constraintDoAdd(constraint2, 19);
    // then
    assertEquals(constraint1, constraint2);
    assertEquals(singleton(constraint1), state.constraintsChangesForLabel(1).getAdded());
}

Example 3 with UniquenessConstraintDescriptor

use of org.neo4j.kernel.api.schema_new.constaints.UniquenessConstraintDescriptor in project neo4j by neo4j.

the class IntegrityValidatorTest method shouldValidateUniquenessIndexes.

@Test
public void shouldValidateUniquenessIndexes() throws Exception {
    // Given
    NeoStores store = mock(NeoStores.class);
    IndexingService indexes = mock(IndexingService.class);
    IntegrityValidator validator = new IntegrityValidator(store, indexes);
    UniquenessConstraintDescriptor constraint = ConstraintDescriptorFactory.uniqueForLabel(1, 1);
    doThrow(new UniquePropertyValueValidationException(constraint, ConstraintValidationException.Phase.VERIFICATION, new RuntimeException())).when(indexes).validateIndex(2L);
    ConstraintRule record = ConstraintRule.constraintRule(1L, constraint, 2L);
    // When
    try {
        validator.validateSchemaRule(record);
        fail("Should have thrown integrity error.");
    } catch (Exception e) {
    // good
    }
}

Example 4 with UniquenessConstraintDescriptor

use of org.neo4j.kernel.api.schema_new.constaints.UniquenessConstraintDescriptor in project neo4j by neo4j.

the class DataIntegrityValidatingStatementOperations method uniquePropertyConstraintCreate.

@Override
public UniquenessConstraintDescriptor uniquePropertyConstraintCreate(KernelStatement state, LabelSchemaDescriptor descriptor) throws AlreadyConstrainedException, CreateConstraintFailureException, AlreadyIndexedException, RepeatedPropertyInCompositeSchemaException {
    assertValidDescriptor(descriptor, OperationContext.CONSTRAINT_CREATION);
    ConstraintDescriptor constraint = ConstraintDescriptorFactory.uniqueForSchema(descriptor);
    assertConstraintDoesNotExist(state, constraint);
    // It is not allowed to create uniqueness constraints on indexed label/property pairs
    assertIndexDoesNotExist(state, OperationContext.CONSTRAINT_CREATION, SchemaBoundary.map(descriptor));
    return schemaWriteDelegate.uniquePropertyConstraintCreate(state, descriptor);
}

Example 5 with UniquenessConstraintDescriptor

use of org.neo4j.kernel.api.schema_new.constaints.UniquenessConstraintDescriptor in project neo4j by neo4j.

the class ConstraintEnforcingEntityOperations method nodeAddLabel.

@Override
public boolean nodeAddLabel(KernelStatement state, long nodeId, int labelId) throws EntityNotFoundException, ConstraintValidationException {
    try (Cursor<NodeItem> cursor = nodeCursorById(state, nodeId)) {
        NodeItem node = cursor.get();
        Iterator<ConstraintDescriptor> constraints = schemaReadOperations.constraintsGetForLabel(state, labelId);
        while (constraints.hasNext()) {
            ConstraintDescriptor constraint = constraints.next();
            if (constraint.type() == UNIQUE) {
                UniquenessConstraintDescriptor uniqueConstraint = (UniquenessConstraintDescriptor) constraint;
                ExactPredicate[] propertyValues = getAllPropertyValues(state, uniqueConstraint.schema(), node);
                if (propertyValues != null) {
                    validateNoExistingNodeWithExactValues(state, uniqueConstraint, propertyValues, node.id());
                }
            }
        }
    }
    return entityWriteOperations.nodeAddLabel(state, nodeId, labelId);
}