src/org/mxchange/jproduct/model/product/Products.java

   1 /*
   2  * Copyright (C) 2018 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.jproduct.model.product;
  18
  19 import java.io.Serializable;
  20 import java.util.Objects;
  21
  22 /**
  23  * An utilities class for generic products
  24  * <p>
  25  * @author Roland Häder<roland@mxchange.org>
  26  */
  27 public class Products implements Serializable {
  28
  29         /**
  30          * Serial number
  31          */
  32         private static final long serialVersionUID = 157_687_661_634_902L;
  33
  34         /**
  35          * Compares both Product instances. This method returns -1 if second
  36          * instance is null.
  37          * <p>
  38          * @param product1 Product instance 1
  39          * @param product2 Product instance 2
  40          * <p>
  41          * @return Comparison value
  42          */
  43         public static int compare (final Product product1, final Product product2) {
  44                 // Check euqality, then at least first must be given
  45                 if (Objects.equals(product1, product2)) {
  46                         // Both are same
  47                         return 0;
  48                 } else if (null == product1) {
  49                         // First is null
  50                         return -1;
  51                 } else if (null == product2) {
  52                         // Second is null
  53                         return 1;
  54                 }
  55
  56                 // Invoke compareTo() method
  57                 return product1.compareTo(product2);
  58         }
  59
  60         /**
  61          * Copies all properties from source product to target product
  62          * <p>
  63          * @param sourceProduct Source product instance
  64          * @param targetProduct Target product instance
  65          * <p>
  66          * @throws NullPointerException If one instance is null
  67          */
  68         public static void copyAll (final Product sourceProduct, final Product targetProduct) {
  69                 // Product should be valid
  70                 if (null == sourceProduct) {
  71                         // Throw NPE
  72                         throw new NullPointerException("sourceProduct is null"); //NOI18N
  73                 } else if (null == targetProduct) {
  74                         // Throw NPE
  75                         throw new NullPointerException("targetProduct is null"); //NOI18N
  76                 }
  77
  78                 // Copy all:
  79                 targetProduct.setProductAgeGroup(sourceProduct.getProductAgeGroup());
  80                 targetProduct.setProductAvailability(sourceProduct.getProductAvailability());
  81                 targetProduct.setProductCategory(sourceProduct.getProductCategory());
  82                 targetProduct.setProductCreated(sourceProduct.getProductCreated());
  83                 targetProduct.setProductCurrencyCode(sourceProduct.getProductCurrencyCode());
  84                 targetProduct.setProductGrossPrice(sourceProduct.getProductGrossPrice());
  85                 targetProduct.setProductI18nKey(sourceProduct.getProductI18nKey());
  86                 targetProduct.setProductManufacturer(sourceProduct.getProductManufacturer());
  87                 targetProduct.setProductNetPrice(sourceProduct.getProductNetPrice());
  88                 targetProduct.setProductNumber(sourceProduct.getProductNumber());
  89                 targetProduct.setProductSize(sourceProduct.getProductSize());
  90                 targetProduct.setProductTaxRate(sourceProduct.getProductTaxRate());
  91                 targetProduct.setProductUnitAmount(sourceProduct.getProductUnitAmount());
  92                 targetProduct.setProductUnitI18nKey(sourceProduct.getProductUnitI18nKey());
  93         }
  94
  95         /**
  96          * Utility classes should have no instances
  97          */
  98         private Products () {
  99                 // Private constructor
 100         }
 101
 102 }