/**
 * Copyright (c) 2017 Contributors to the Eclipse Foundation
 * Copyright 2017 SmartBear Software
 * <p>
 * Licensed 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
 * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * 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.
 */

package org.eclipse.microprofile.openapi.models.callbacks;

import java.util.Map;

import org.eclipse.microprofile.openapi.models.Constructible;
import org.eclipse.microprofile.openapi.models.Extensible;
import org.eclipse.microprofile.openapi.models.PathItem;

/**
 * Callback
 * <p>
 * A map of possible out-of-band callbacks related to the parent operation. Each
 * value in the map is a Path Item Object that describes a set of requests that
 * may be initiated by the API provider and the expected responses. The key
 * value used to identify the callback object is an expression, evaluated at
 * runtime, that identifies a URL to use for the callback operation.
 * 
 * @see <a href="https://github.com/OAI/OpenAPI-Specification/blob/master/versions/3.0.0.md#callbackObject">OpenAPI Specification Callback Object</a>
 */
public interface Callback extends Constructible, Extensible, Map<String, PathItem> {

	/**
	   * Adds the given PathItem to this Callback's list of PathItems using the string as its key.
	   *
	   * The key that identifies the Path Item Object is a runtime expression that can be 
	   * evaluated in the context of a runtime HTTP request/response to identify the URL 
	   * to be used for the callback request. A simple example might be $request.body#/url. 
	   * However, using a runtime expression the complete HTTP message can be accessed. 
	   * This includes accessing any part of a body that a JSON Pointer RFC6901 can 
	   * reference. 
	   * @param name a runtime expression that can be 
	   * evaluated in the context of a runtime HTTP request/response
	   * @param item a path to add to this Callback's list of PathItems
	   */
	Callback addPathItem(String name, PathItem item);

}
@@ -926,16 +926,74 @@
 athItem;
+%0Aimport org.eclipse.microprofile.openapi.models.Reference;
 %0A%0A/**%0A *
@@ -1610,16 +1610,37 @@
 ensible,
+ Reference%3CCallback%3E,
  Map%3CStr

Fix for issue #24 - Add Reference interface to Callback model