Examples with DropConstraintFailureException org.neo4j.kernel.api.exceptions.schema.DropConstraintFailureException used on opensource projects

Example 1 with DropConstraintFailureException

use of org.neo4j.kernel.api.exceptions.schema.DropConstraintFailureException in project neo4j by neo4j.

the class Operations method constraintDrop.

@Override
public void constraintDrop(String name) throws SchemaKernelException {
    exclusiveSchemaNameLock(name);
    ConstraintDescriptor constraint = allStoreHolder.constraintGetForName(name);
    if (constraint == null) {
        throw new DropConstraintFailureException(name, new NoSuchConstraintException(name));
    }
    constraintDrop(constraint);
}

Example 2 with DropConstraintFailureException

use of org.neo4j.kernel.api.exceptions.schema.DropConstraintFailureException in project neo4j by neo4j.

the class Operations method constraintDrop.

@Override
public void constraintDrop(ConstraintDescriptor constraint) throws SchemaKernelException {
    // Lock
    SchemaDescriptor schema = constraint.schema();
    exclusiveLock(schema.keyType(), schema.lockingKeys());
    exclusiveSchemaNameLock(constraint.getName());
    ktx.assertOpen();
    // verify data integrity
    try {
        assertConstraintExists(constraint);
    } catch (NoSuchConstraintException e) {
        throw new DropConstraintFailureException(constraint, e);
    }
    // Drop it like it's hot
    TransactionState txState = ktx.txState();
    txState.constraintDoDrop(constraint);
    if (constraint.enforcesUniqueness()) {
        IndexDescriptor index = allStoreHolder.indexGetForName(constraint.getName());
        if (index != IndexDescriptor.NO_INDEX) {
            txState.indexDoDrop(index);
        }
    }
}

Example 3 with DropConstraintFailureException

use of org.neo4j.kernel.api.exceptions.schema.DropConstraintFailureException in project neo4j by neo4j.

the class Operations method constraintDrop.

@Override
public void constraintDrop(SchemaDescriptor schema, ConstraintType type) throws SchemaKernelException {
    ktx.assertOpen();
    Iterator<ConstraintDescriptor> constraints = ktx.schemaRead().constraintsGetForSchema(schema);
    constraints = Iterators.filter(constraint -> constraint.type() == type, constraints);
    if (constraints.hasNext()) {
        ConstraintDescriptor constraint = constraints.next();
        if (!constraints.hasNext()) {
            constraintDrop(constraint);
        } else {
            String schemaDescription = schema.userDescription(token);
            String constraintDescription = constraints.next().userDescription(token);
            throw new DropConstraintFailureException(constraint, new IllegalArgumentException("More than one " + type + " constraint was found with the '" + schemaDescription + "' schema: " + constraintDescription + ", please drop constraint by name instead."));
        }
    } else {
        throw new DropConstraintFailureException(schema, new NoSuchConstraintException(schema, token));
    }
}

Example 4 with DropConstraintFailureException

use of org.neo4j.kernel.api.exceptions.schema.DropConstraintFailureException in project neo4j by neo4j.

the class NodePropertyExistenceConstraintCreationIT method shouldNotDropPropertyExistenceConstraintThatDoesNotExistWhenThereIsAUniquePropertyConstraint.

@Test
public void shouldNotDropPropertyExistenceConstraintThatDoesNotExistWhenThereIsAUniquePropertyConstraint() throws Exception {
    // given
    UniquenessConstraintDescriptor constraint;
    {
        SchemaWriteOperations statement = schemaWriteOperationsInNewTransaction();
        constraint = statement.uniquePropertyConstraintCreate(descriptor);
        commit();
    }
    // when
    try {
        SchemaWriteOperations statement = schemaWriteOperationsInNewTransaction();
        statement.constraintDrop(ConstraintDescriptorFactory.existsForSchema(constraint.schema()));
        fail("expected exception");
    }// then
     catch (DropConstraintFailureException e) {
        assertThat(e.getCause(), instanceOf(NoSuchConstraintException.class));
    } finally {
        rollback();
    }
    // then
    {
        ReadOperations statement = readOperationsInNewTransaction();
        Iterator<ConstraintDescriptor> constraints = statement.constraintsGetForSchema(descriptor);
        assertEquals(constraint, single(constraints));
    }
}

Example 5 with DropConstraintFailureException

use of org.neo4j.kernel.api.exceptions.schema.DropConstraintFailureException in project neo4j by neo4j.

the class UniquenessConstraintCreationIT method shouldNotDropUniquePropertyConstraintThatDoesNotExistWhenThereIsAPropertyExistenceConstraint.

@Test
public void shouldNotDropUniquePropertyConstraintThatDoesNotExistWhenThereIsAPropertyExistenceConstraint() throws Exception {
    // given
    SchemaWriteOperations schemaWriteOperations = schemaWriteOperationsInNewTransaction();
    schemaWriteOperations.nodePropertyExistenceConstraintCreate(descriptor);
    commit();
    // when
    try {
        SchemaWriteOperations statement = schemaWriteOperationsInNewTransaction();
        statement.constraintDrop(ConstraintDescriptorFactory.uniqueForSchema(descriptor));
        fail("expected exception");
    }// then
     catch (DropConstraintFailureException e) {
        assertThat(e.getCause(), instanceOf(NoSuchConstraintException.class));
    } finally {
        rollback();
    }
    // then
    {
        ReadOperations statement = readOperationsInNewTransaction();
        Iterator<ConstraintDescriptor> constraints = statement.constraintsGetForSchema(descriptor);
        assertEquals(ConstraintDescriptorFactory.existsForSchema(descriptor), single(constraints));
    }
}