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

Example 1 with SchemaKernelException

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

the class Operations method lockAndValidatePropertyExistenceConstraint.

private ConstraintDescriptor lockAndValidatePropertyExistenceConstraint(SchemaDescriptor descriptor, String name) throws KernelException {
    // Lock constraint schema.
    exclusiveSchemaLock(descriptor);
    ktx.assertOpen();
    try {
        // Verify data integrity.
        assertValidDescriptor(descriptor, SchemaKernelException.OperationContext.CONSTRAINT_CREATION);
        ConstraintDescriptor constraint = ConstraintDescriptorFactory.existsForSchema(descriptor).withName(name);
        constraint = ensureConstraintHasName(constraint);
        exclusiveSchemaNameLock(constraint.getName());
        assertNoBlockingSchemaRulesExists(constraint);
        return constraint;
    } catch (SchemaKernelException e) {
        exclusiveSchemaUnlock(descriptor);
        throw e;
    }
}

Example 2 with SchemaKernelException

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

the class IndexIT method shouldDisallowDroppingIndexByNameThatDoesNotExist.

@Test
void shouldDisallowDroppingIndexByNameThatDoesNotExist() throws KernelException {
    // given
    String indexName = "My fancy index";
    IndexDescriptor index;
    {
        SchemaWrite statement = schemaWriteInNewTransaction();
        index = statement.indexCreate(schema, indexName);
        commit();
    }
    {
        SchemaWrite statement = schemaWriteInNewTransaction();
        statement.indexDrop(index);
        commit();
    }
    // when
    SchemaWrite statement = schemaWriteInNewTransaction();
    SchemaKernelException e = assertThrows(SchemaKernelException.class, () -> statement.indexDrop(indexName));
    assertEquals(e.getMessage(), "Unable to drop index called `My fancy index`. There is no such index.");
    rollback();
}

Example 3 with SchemaKernelException

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

the class IndexIT method shouldDisallowDroppingConstraintByNameThatDoesNotExist.

@Test
void shouldDisallowDroppingConstraintByNameThatDoesNotExist() throws KernelException {
    // given
    String constraintName = "my constraint";
    ConstraintDescriptor constraint;
    {
        SchemaWrite statement = schemaWriteInNewTransaction();
        constraint = statement.uniquePropertyConstraintCreate(uniqueForSchema(schema).withName("constraint name"));
        commit();
    }
    {
        SchemaWrite statement = schemaWriteInNewTransaction();
        statement.constraintDrop(constraint);
        commit();
    }
    // when
    SchemaWrite statement = schemaWriteInNewTransaction();
    SchemaKernelException e = assertThrows(SchemaKernelException.class, () -> statement.constraintDrop(constraintName));
    assertEquals("Unable to drop constraint `my constraint`: No such constraint my constraint.", e.getMessage());
    rollback();
}

Example 4 with SchemaKernelException

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

the class IndexIT method shouldDisallowDroppingIndexByNameThatBelongsToConstraint.

@Test
void shouldDisallowDroppingIndexByNameThatBelongsToConstraint() throws KernelException {
    // given
    String constraintName = "my constraint";
    {
        SchemaWrite statement = schemaWriteInNewTransaction();
        statement.uniquePropertyConstraintCreate(uniqueForSchema(schema).withName("constraint name"));
        commit();
    }
    // when
    SchemaWrite statement = schemaWriteInNewTransaction();
    SchemaKernelException e = assertThrows(SchemaKernelException.class, () -> statement.indexDrop(constraintName));
    assertEquals("Unable to drop index called `my constraint`. There is no such index.", e.getMessage());
    rollback();
}

Example 5 with SchemaKernelException

use of org.neo4j.internal.kernel.api.exceptions.schema.SchemaKernelException 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));
    }
}