update abstractfactory

05_abstract_factory/abstractfactory.go

@@ -1,13 +1,15 @@
 package abstractfactory
 
+import "fmt"
+
 //OrderMainDAO 为订单主记录
 type OrderMainDAO interface {
-	SaveOrderMain() string
+	SaveOrderMain()
 }
 
 //OrderDetailDAO 为订单详情纪录
 type OrderDetailDAO interface {
-	SaveOrderDetail() string
+	SaveOrderDetail()
 }
 
 //DAOFactory DAO 抽象模式工厂接口
@@ -20,16 +22,16 @@ type DAOFactory interface {
 type RDBMainDAO struct{}
 
 //SaveOrderMain ...
-func (*RDBMainDAO) SaveOrderMain() string {
-	return "rdb main save"
+func (*RDBMainDAO) SaveOrderMain() {
+	fmt.Print("rdb main save\n")
 }
 
 //RDBDetailDAO 为关系型数据库的OrderDetailDAO实现
 type RDBDetailDAO struct{}
 
 // SaveOrderDetail ...
-func (*RDBDetailDAO) SaveOrderDetail() string {
-	return "rdb detail save"
+func (*RDBDetailDAO) SaveOrderDetail() {
+	fmt.Print("rdb detail save\n")
 }
 
 //RDBDAOFactory 是RDB 抽象工厂实现
@@ -47,16 +49,16 @@ func (*RDBDAOFactory) CreateOrderDetailDAO() OrderDetailDAO {
 type XMLMainDAO struct{}
 
 //SaveOrderMain ...
-func (*XMLMainDAO) SaveOrderMain() string {
-	return "xml main save"
+func (*XMLMainDAO) SaveOrderMain() {
+	fmt.Print("xml main save\n")
 }
 
 //XMLDetailDAO XML存储
 type XMLDetailDAO struct{}
 
 // SaveOrderDetail ...
-func (*XMLDetailDAO) SaveOrderDetail() string {
-	return "xml detail save"
+func (*XMLDetailDAO) SaveOrderDetail() {
+	fmt.Print("xml detail save")
 }
 
 //XMLDAOFactory 是RDB 抽象工厂实现

05_abstract_factory/abstractfactory_test.go

@@ -1,33 +1,24 @@
 package abstractfactory
 
-import "testing"
-
-func getMainAndDetail(factory DAOFactory) (string, string) {
-	main := factory.CreateOrderMainDAO()
-	detail := factory.CreateOrderDetailDAO()
-	return main.SaveOrderMain(), detail.SaveOrderDetail()
+func getMainAndDetail(factory DAOFactory) {
+	factory.CreateOrderMainDAO().SaveOrderMain()
+	factory.CreateOrderDetailDAO().SaveOrderDetail()
 }
 
-func TestRdbFactory(t *testing.T) {
+func ExampleRdbFactory() {
 	var factory DAOFactory
 	factory = &RDBDAOFactory{}
-	main, detail := getMainAndDetail(factory)
-	if main != "rdb main save" {
-		t.Fatal("main save fail")
-	}
-	if detail != "rdb detail save" {
-		t.Fatal("detail save fail")
-	}
+	getMainAndDetail(factory)
+	// Output:
+	// rdb main save
+	// rdb detail save
 }
 
-func TestXmlFactory(t *testing.T) {
+func ExampleXmlFactory() {
 	var factory DAOFactory
 	factory = &XMLDAOFactory{}
-	main, detail := getMainAndDetail(factory)
-	if main != "xml main save" {
-		t.Fatal("main save fail")
-	}
-	if detail != "xml detail save" {
-		t.Fatal("detail save fail")
-	}
+	getMainAndDetail(factory)
+	// Output:
+	// xml main save
+	// xml detail save
 }