@itwin/ecschema-metadata/lib/cjs/utils/SchemaGraph.d.ts

ECObjects core concepts in typescript

import { SchemaContext } from "../Context";
import { SchemaInfo } from "../Interfaces";
import { Schema } from "../Metadata/Schema";
/**
 * A schema and it's reference that make up part of a schema cycle
 * @internal
 */
export interface ReferenceCycle {
    schema: SchemaInfo;
    refSchema: SchemaInfo;
}
/**
 * Utility class for detecting cyclic references in a Schema graph.
 * @internal
 */
export declare class SchemaGraph {
    private _schemas;
    private constructor();
    private find;
    /**
     * Detected cyclic references in a schema and throw an exception if a cycle is found.
     */
    throwIfCycles(): void;
    /**
     * Detected cyclic references in a schema.
     * @returns An array describing the cycle if there is a cycle or undefined if no cycles found.
     */
    detectCycles(): ReferenceCycle[] | undefined;
    private detectCycleUtil;
    /**
     * Generates a SchemaGraph for the input schema using the context to find info on referenced schemas.  Use the generateGraphSync if you have the fully loaded Schema.
     * @param schema The SchemaInfo to build the graph from
     * @param context The SchemaContext used to locate info on the referenced schemas
     * @returns A SchemaGraph that can be used to detect schema cycles
     */
    static generateGraph(schema: SchemaInfo, context: SchemaContext): Promise<SchemaGraph>;
    /**
     * Generates a SchemaGraph for the input schema.  Use the generateGraph if you just have schema info.
     * @param schema The Schema to build the graph from.
     * @returns A SchemaGraph that can be used to detect schema cycles
     */
    static generateGraphSync(schema: Schema): SchemaGraph;
}
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