ing

src/model/commons/Page.ts

@@ -1,11 +1,78 @@
-export interface Page {
-    content: any;
-    first: boolean;
-    last: boolean;
-    number: number;
-    numberOfElements: number;
-    size: number;
-    sort: any;
-    totalElements: number;
-    totalPages: number;
+// export interface Page {
+//     content: any;
+//     first: boolean;
+//     last: boolean;
+//     number: number;
+//     numberOfElements: number;
+//     size: number;
+//     sort: any;
+//     totalElements: number;
+//     totalPages: number;
+// }
+
+export class Pageable {
+  page: number;
+  size: number;
+
+  public getPageSize(): number {
+		return this.size;
+  }
+  
+	public getPageNumber(): number {
+		return this.page;
+  }
+  
+	public getOffset(): number {
+		return this.page * this.size;
+	}
 }
+
+export class Page<T> {
+  content: T[];
+  pageable: Pageable;
+  total: number;
+
+  public getNumber(): number {
+		return this.pageable == null ? 0 : this.pageable.getPageNumber();
+  }
+  
+	public getSize(): number {
+		return this.pageable == null ? 0 : this.pageable.getPageSize();
+  }
+  
+	public getTotalPages(): number {
+		return this.getSize() == 0 ? 0 : Math.ceil(this.total / this.getSize());
+  }
+  
+	public getNumberOfElements(): number {
+		return this.content.length;
+  }
+  
+	public getTotalElements(): number {
+		return this.total;
+  }
+  
+	public hasPreviousPage(): boolean {
+		return this.getNumber() > 0;
+  }
+  
+	public isFirstPage(): boolean {
+		return !this.hasPreviousPage();
+  }
+  
+	public hasNextPage(): boolean {
+		return ((this.getNumber() + 1) * this.getSize()) < this.total;
+  }
+  
+	public isLastPage(): boolean {
+		return !this.hasNextPage();
+  }
+  
+	public getContent(): T[] {
+		return this.content;
+  }
+  
+	public hasContent(): boolean {
+		return null !== this.content && 0 < this.content.length;
+	}
+}