/** @module validate */
import { IValidationRule } from './IValidationRule';
import { Schema } from './Schema';
import { ValidationResult } from './ValidationResult';
/**
 * Validation rule that compares two object properties.
 *
 * @see [[IValidationRule]]
 *
 * ### Example ###
 *
 *     let schema = new ObjectSchema()
 *         .withRule(new PropertyComparisonRule("field1", "NE", "field2"));
 *
 *     schema.validate({ field1: 1, field2: 2 });       // Result: no errors
 *     schema.validate({ field1: 1, field2: 1 });       // Result: field1 shall not be equal to field2
 *     schema.validate({});                             // Result: no errors
 */
export declare class PropertiesComparisonRule implements IValidationRule {
    private readonly _property1;
    private readonly _property2;
    private readonly _operation;
    /**
     * Creates a new validation rule and sets its arguments.
     *
     * @param property1    a name of the first property to compare.
     * @param operation    a comparison operation: "==" ("=", "EQ"), "!= " ("<>", "NE"); "<"/">" ("LT"/"GT"), "<="/">=" ("LE"/"GE"); "LIKE".
     * @param property2    a name of the second property to compare.
     *
     * @see [[ObjectComparator.compare]]
     */
    constructor(property1: string, operation: string, property2: string);
    /**
     * Validates a given value against this rule.
     *
     * @param path      a dot notation path to the value.
     * @param schema    a schema this rule is called from
     * @param value     a value to be validated.
     * @param results   a list with validation results to add new results.
     */
    validate(path: string, schema: Schema, value: any, results: ValidationResult[]): void;
}