/*!
 * Copyright 2020 Ron Buckton
 *
 * 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
 *
 *  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.
 */
import type { GraphNode } from "./graphNode";
import type { GraphLink } from "./graphLink";
import { GraphSchema } from "./graphSchema";
import { GraphObject } from "./graphObject";
import { GraphNodeCollection } from "./graphNodeCollection";
import { GraphLinkCollection } from "./graphLinkCollection";
import { GraphNodeIdLike } from "./graphNodeIdLike";
/**
 * A directed graph consisting of nodes and links.
 */
export declare class Graph extends GraphObject {
    private _links;
    private _nodes;
    private _schema;
    private _metadata;
    constructor();
    /**
     * Gets the graph that this object belongs to.
     */
    get owner(): Graph;
    /**
     * Gets the document schema for this object.
     */
    get schema(): GraphSchema;
    /**
     * Gets the collection of links in the graph.
     */
    get links(): GraphLinkCollection;
    /**
     * Gets the collection of nodes in the graph.
     */
    get nodes(): GraphNodeCollection;
    /**
     * Adds a new schema to the graph.
     */
    addSchema(schema: GraphSchema): this;
    /**
     * Copies the schemas from another graph.
     */
    copySchemas(graph: Graph): boolean;
    /**
     * Imports a link (along with its source and target nodes) into the graph.
     */
    importLink(link: GraphLink): GraphLink;
    /**
     * Imports a node into the graph.
     * @param depth The depth of related links to import.
     */
    importNode(node: GraphNode, depth?: number): GraphNode;
    /**
     * Clears the links and nodes of the graph.
     */
    clear(): void;
    /**
     * Renames a node.
     * @param newId The new id for the node.
     */
    renameNode(node: GraphNode, newId: GraphNodeIdLike): GraphNode;
    /**
     * Renames a node.
     * @param nodeId The id of the node to rename.
     * @param newId The new id for the node.
     */
    renameNode(nodeId: GraphNodeIdLike, newId: GraphNodeIdLike): GraphNode | undefined;
    private _importLink;
    private _importNode;
}