src/org/mxchange/jfinancials/events/receipt_item/added/AdminReceiptItemAddedEvent.java

   1 /*
   2  * Copyright (C) 2017 - 2024 Free Software Foundation
   3  *
   4  * This program is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17 package org.mxchange.jfinancials.events.receipt_item.added;
  18
  19 import java.text.MessageFormat;
  20 import org.mxchange.jfinancials.model.receipt_item.BillableReceiptItem;
  21
  22 /**
  23  * An event being fired when a new receipt item has been added by an
  24  * administrator.
  25  * <p>
  26  * @author Roland Haeder<roland@mxchange.org>
  27  */
  28 public class AdminReceiptItemAddedEvent implements ObservableAdminReceiptItemAddedEvent {
  29
  30         /**
  31          * Serial number
  32          */
  33         private static final long serialVersionUID = 157_582_667_163_548L;
  34
  35         /**
  36          * New receipt item instance being added
  37          */
  38         private final BillableReceiptItem addedReceiptItem;
  39
  40         /**
  41          * Constructor with receipt instance
  42          * <p>
  43          * @param addedReceiptItem Receipt instance
  44          */
  45         public AdminReceiptItemAddedEvent (final BillableReceiptItem addedReceiptItem) {
  46                 // Validate parameter
  47                 if (null == addedReceiptItem) {
  48                         // Throw NPE
  49                         throw new NullPointerException("addedReceiptItem is null");
  50                 } else if (addedReceiptItem.getItemId() == null) {
  51                         // Throw NPE again
  52                         throw new NullPointerException("addedReceiptItem.itemId is null");
  53                 } else if (addedReceiptItem.getItemId() < 1) {
  54                         // Throw NPE again
  55                         throw new NullPointerException(MessageFormat.format("addedReceiptItem.itemId={0} is not valid", addedReceiptItem.getItemId()));
  56                 }
  57
  58                 // Set it here
  59                 this.addedReceiptItem = addedReceiptItem;
  60         }
  61
  62         @Override
  63         public BillableReceiptItem getAddedReceiptItem () {
  64                 return this.addedReceiptItem;
  65         }
  66
  67 }