| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to you under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| /** |
| * Calcite adapters. |
| * |
| * <p>An adapter allows Calcite to access data in a particular data source as |
| * if it were a collection of tables in a schema. Each adapter typically |
| * contains an implementation of {@link org.apache.calcite.schema.SchemaFactory} |
| * and some classes that implement other schema SPIs. |
| * |
| * <p>To use an adapter, include a custom schema in a JSON model file: |
| * |
| * <blockquote><pre> |
| * schemas: [ |
| * { |
| * type: 'custom', |
| * name: 'My Custom Schema', |
| * factory: 'com.acme.MySchemaFactory', |
| * operand: {a: 'foo', b: [1, 3.5] } |
| * } |
| * ] |
| * </pre> |
| * </blockquote> |
| */ |
| @DefaultQualifier(value = NonNull.class, locations = TypeUseLocation.FIELD) |
| @DefaultQualifier(value = NonNull.class, locations = TypeUseLocation.PARAMETER) |
| @DefaultQualifier(value = NonNull.class, locations = TypeUseLocation.RETURN) |
| package org.apache.calcite.adapter; |
| |
| import org.checkerframework.checker.nullness.qual.NonNull; |
| import org.checkerframework.framework.qual.DefaultQualifier; |
| import org.checkerframework.framework.qual.TypeUseLocation; |
