import { PipeTransform } from '@angular/core';
/**
 * `{{ collection | orderBy: expression : reverse : caseInsensitive }}`
 *
 * __collection__	[array or object]		The collection or object to sort
 *
 * __expression__	[string]		The key to determinate order
 *
 * __reverse__ (optional) [boolean]	false	Reverse sorting order
 *
 * __caseInsensitive__ (optional) [boolean]	true	Case insensitive compare for sorting
 *
 * ### __Example 1 __ :
 *
 *  ```html
 *
 *  import { Component } from '@angular/core';
 *  Component({
 *    selector: 'example',
 *    template: `
 *      <div>
 *        <ul>
 *          <li *ngFor="let item of array | somaOrderBy: order">
 *            {{ item.name }}
 *          </li>
 *        </ul>
 *      </div>
 *    `
 *  })
 *
 *  export class AppComponent {
 *    array: any[] = [{ name: 'John'} , { name: 'Mary' }, { name: 'Adam' }];
 *    order: string = 'name';
 *  }
 *
 * ```
 *
 * ### __Example 2 __ :
 *
 * ```html
 * <div>{{ { prop: { list: [3, 2, 1] } } | somaOrderBy: 'prop.list' | json }}</div>
 * ```
 */
export declare class SomaOrderPipe implements PipeTransform {
    /**
     * Check if a value is a string
     *
     * @param value
     */
    static isString(value: any): boolean;
    /**
     * Sorts values ignoring the case
     *
     * @param a
     * @param b
     */
    static caseInsensitiveSort(a: any, b: any): any;
    /**
     * Parse expression, split into items
     * @param expression
     * @returns
     */
    static parseExpression(expression: string): string[];
    /**
     * Get value by expression
     *
     * @param object
     * @param expression
     * @returns
     */
    static getValue(object: any, expression: string[]): any;
    /**
     * Set value by expression
     *
     * @param object
     * @param value
     * @param expression
     */
    static setValue(object: any, value: any, expression: string[]): void;
    transform(value: any | any[], expression?: any, reverse?: boolean, isCaseInsensitive?: boolean): any;
    /**
     * Sort array
     *
     * @param value
     * @param expression
     * @param reverse
     * @param isCaseInsensitive
     * @returns
     */
    private sortArray(value, expression?, reverse?, isCaseInsensitive?);
    /**
     * Transform Object
     *
     * @param value
     * @param expression
     * @param reverse
     * @param isCaseInsensitive
     * @returns
     */
    private transformObject(value, expression?, reverse?, isCaseInsensitive?);
}