Implementation of Amazon SimpleDB using Java

AmazonSimpleDBClientBuilder clientBuilder = AmazonSimpleDBClientBuilder.standard().withCredentials(new AWSStaticCredentialsProvider(awsCredentials)).withRegion(Regions.EU_WEST_1);
 AmazonSimpleDB sdb = clientBuilder.build();

            String myDomain = "MyStore";
            System.out.println("Creating domain called " + myDomain + ".\n");
            sdb.createDomain(new CreateDomainRequest(myDomain));

 System.out.println("Listing all domains in your account:\n");
            for (String domainName : sdb.listDomains().getDomainNames()) {
                System.out.println("  " + domainName);
            }
            System.out.println();

            System.out.println("Putting data into " + myDomain + " domain.\n");
            sdb.batchPutAttributes(new BatchPutAttributesRequest(myDomain, createSampleData()));

  String selectExpression = "select * from `" + myDomain + "` where Category = 'Clothes'";
            System.out.println("Selecting: " + selectExpression + "\n");
            SelectRequest selectRequest = new SelectRequest(selectExpression);
            for (Item item : sdb.select(selectRequest).getItems()) {
                System.out.println("  Item");
                System.out.println("    Name: " + item.getName());
                for (Attribute attribute : item.getAttributes()) {
                    System.out.println("      Attribute");
                    System.out.println("        Name:  " + attribute.getName());
                    System.out.println("        Value: " + attribute.getValue());
                }
            }
            System.out.println();

  System.out.println("Deleting Blue attributes in Item_O3.\n");
            Attribute deleteValueAttribute = new Attribute("Color", "Blue");
            sdb.deleteAttributes(new DeleteAttributesRequest(myDomain, "Item_03")
                    .withAttributes(deleteValueAttribute));

            System.out.println("Deleting attribute Year in Item_O3.\n");
            sdb.deleteAttributes(new DeleteAttributesRequest(myDomain, "Item_03")
            .withAttributes(new Attribute().withName("Year")));

            System.out.println("Replacing Size of Item_03 with Medium.\n");
            List replaceableAttributes = new ArrayList();
            replaceableAttributes.add(new ReplaceableAttribute("Size", "Medium", true));
            sdb.putAttributes(new PutAttributesRequest(myDomain, "Item_03", replaceableAttributes));

            System.out.println("Deleting Item_03.\n");
            sdb.deleteAttributes(new DeleteAttributesRequest(myDomain, "Item_03"));

            System.out.println("Deleting " + myDomain + " domain.\n");
            sdb.deleteDomain(new DeleteDomainRequest(myDomain));

  /**
     * Creates an array of SimpleDB ReplaceableItems populated with sample data.
     *
     * @return An array of sample item data.
     */
    private static List createSampleData() {
        List sampleData = new ArrayList();

        sampleData.add(new ReplaceableItem("Item_01").withAttributes(
                new ReplaceableAttribute("Category", "Clothes", true),
                new ReplaceableAttribute("Subcategory", "Sweater", true),
                new ReplaceableAttribute("Name", "Cathair Sweater", true),
                new ReplaceableAttribute("Color", "Siamese", true),
                new ReplaceableAttribute("Size", "Small", true),
                new ReplaceableAttribute("Size", "Medium", true),
                new ReplaceableAttribute("Size", "Large", true)));

        sampleData.add(new ReplaceableItem("Item_02").withAttributes(
                new ReplaceableAttribute("Category", "Clothes", true),
                new ReplaceableAttribute("Subcategory","Pants", true),
                new ReplaceableAttribute("Name", "Designer Jeans", true),
                new ReplaceableAttribute("Color", "Paisley Acid Wash", true),
                new ReplaceableAttribute("Size", "30x32", true),
                new ReplaceableAttribute("Size", "32x32", true),
                new ReplaceableAttribute("Size", "32x34", true)));

        sampleData.add(new ReplaceableItem("Item_03").withAttributes(
                new ReplaceableAttribute("Category", "Clothes", true),
                new ReplaceableAttribute("Subcategory", "Pants", true),
                new ReplaceableAttribute("Name", "Sweatpants", true),
                new ReplaceableAttribute("Color", "Blue", true),
                new ReplaceableAttribute("Color", "Yellow", true),
                new ReplaceableAttribute("Color", "Pink", true),
                new ReplaceableAttribute("Size", "Large", true),
                new ReplaceableAttribute("Year", "2006", true),
                new ReplaceableAttribute("Year", "2007", true)));
 return sampleData;
    }