list.component.ts

...
@Component({
  selector: 'list',
  templateUrl: './list.component.html',
  styleUrls: ['./list.component.scss'],
  changeDetection: ChangeDetectionStrategy.OnPush
})

export class ListComponent implements OnChanges {

  @Input() rows: Transaction[];
  
  private _rows: {[key: string]: Transaction} = {};
  public rowClasses: {[key: string]: any} = {};

...

  ngOnChanges() {
    this.rows.forEach((row) => {
      if (!this._rows[row.id] || this._rows[row.id].version !== row.version) {
        this._rows[row.id] = row;
        this.setRowClasses(row);
      }
    });
  }
  
  private setRowClasses(row) {
    this.rowClasses[row.id] = {
      'active': this.trService.isActive(row),
      'rejected': this.trService.isRejected(row),
      'accepted': this.trService.isAccepted(row)
    };
  }
  
  public getRowClasses(row: Transaction) {
    return this.rowClasses[row.id];
  }
  
...

}