import type { ResolvedModel, ResolvedField, ModelRelationship, ExtensionSource } from './types.js';
/**
 * Central registry providing lookup access to all resolved models,
 * their relationships, and extension metadata.
 */
export declare class SchemaRegistry {
    private readonly modelMap;
    private readonly relationships;
    private readonly extensionSourceMap;
    constructor(models: ResolvedModel[]);
    /** Retrieve a single model by its fully qualified name (e.g. "sales.Invoice"). */
    getModel(qualifiedName: string): ResolvedModel | undefined;
    /** Return all registered models. */
    getAllModels(): ResolvedModel[];
    /** Return the field definitions for a given model. */
    getFieldsForModel(qualifiedName: string): ResolvedField[];
    /** Return all computed relationships across the schema. */
    getRelationships(): ModelRelationship[];
    /** Return relationships originating from a specific model. */
    getRelationshipsForModel(qualifiedName: string): ModelRelationship[];
    /** Return extension source metadata for a model (which apps contributed fields). */
    getExtensionSources(qualifiedName: string): ExtensionSource[];
    /** Group all models by their module name. */
    getModelsByModule(): Map<string, ResolvedModel[]>;
    /**
     * Builds a map from model name to the list of apps that extended it with extra fields.
     */
    private buildExtensionSourceMap;
}
//# sourceMappingURL=registry.d.ts.map