/** @packageDocumentation
 * @module Locaters
 */
import { Schema, SchemaContext, SchemaKey, SchemaMatchType } from "@itwin/ecschema-metadata";
/**
 * A SchemaKey implementation that aids in identifying Schema strings via the
 * addition of the schemaText property. The schemaText is the full XML string
 * representation of the Schema.
 * @beta
 */
export declare class StringSchemaKey extends SchemaKey {
    schemaText: string;
    /**
     * Initializes a new StringSchemaKey object.
     * @param key The EC SchemaKey identifying the Schema.
     * @param schemaText The string representation of the Schema
     */
    constructor(key: SchemaKey, schemaText: string);
}
/**
 * Abstract class to hold common/overlapping functionality between SchemaJsonStringLocater and SchemaXmlStringLocater
 * @beta
 */
export declare abstract class SchemaStringLocater {
    schemaStrings: string[];
    constructor();
    /**
     * Adds schema strings used by this locator to find the
     * Schemas.
     * @param schemaPaths An array of Schema strings to add
     */
    addSchemaStrings(schemaStrings: string[]): void;
    /**
     * Adds a schema string used by this locator to locate and load Schemas.
     * @param schemaText The text of the Schema
     */
    addSchemaString(schemaString: string): void;
    protected abstract getSchemaKey(data: string): SchemaKey;
    /**
     * Attempts to find all Schema strings that match the desired SchemaKey.
     * @param desiredKey The SchemaKey to match.
     * @param matchType The SchemaMatchType.
     */
    protected findEligibleSchemaKeys(desiredKey: SchemaKey, matchType: SchemaMatchType): StringSchemaKey[];
    abstract getSchema(key: SchemaKey, matchType: SchemaMatchType, context: SchemaContext): Promise<Schema | undefined>;
    /**
     * Compares two Schema versions.  If the left-hand version is greater, 1 is returned. If the
     * left-hand version is less, -1 us returned.  If the versions are an exact match, 0 is returned.
     * @param lhs The 'left-hand' StringSchemaKey.
     * @param rhs The 'right-hand' StringSchemaKey.
     */
    compareSchemaKeyByVersion: (lhs: StringSchemaKey, rhs: StringSchemaKey) => number;
}
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