dspace-angular/src/app/core/shared/page-info.model.ts

import { autoserialize, autoserializeAs } from 'cerialize';
import { hasValue } from '../../shared/empty.util';

/**
 * Represents the state of a paginated response
 */
export class PageInfo {

  /**
   * The number of elements on a page
   */
  @autoserializeAs(Number, 'size')
  elementsPerPage: number;

  /**
   * The total number of elements in the entire set
   */
  @autoserialize
  totalElements: number;

  /**
   * The total number of pages
   */
  @autoserialize
  totalPages: number;

  /**
   * The number of the current page, zero-based
   */
  @autoserializeAs(Number, 'number')
  currentPage: number;

  @autoserialize
  last: string;

  @autoserialize
  next: string;

  @autoserialize
  prev: string;

  @autoserialize
  first: string;

  @autoserialize
  self: string;

  constructor(
    options?: {
      elementsPerPage: number,
      totalElements: number,
      totalPages: number,
      currentPage: number
    }
  ) {
    if (hasValue(options)) {
      this.elementsPerPage = options.elementsPerPage;
      this.totalElements = options.totalElements;
      this.totalPages = options.totalPages;
      this.currentPage = options.currentPage;
    }
  }
}