Added Spring sample application related to structure

8 files changed, 130 insertions, 0 deletions

diff --git a/spring-framework/spring-task-manager-structure/src/main/java/com/example/spring/App.java b/spring-framework/spring-task-manager-structure/src/main/java/com/example/spring/App.java
new file mode 100644
index 0000000..0df54bc
--- /dev/null
+++ b/spring-framework/spring-task-manager-structure/src/main/java/com/example/spring/App.java
@@ -0,0 +1,11 @@
+package com.example.spring;
+
+import com.example.spring.task.TaskManagerApp;
+
+public class App {
+	public static void main(String[] args) {
+		// Actually, BankApp is the class with the main method.
+		// It should have been executed directly instead of this class.
+		TaskManagerApp.main(args);
+	}
+}
diff --git a/spring-framework/spring-task-manager-structure/src/main/java/com/example/spring/task/Task.java b/spring-framework/spring-task-manager-structure/src/main/java/com/example/spring/task/Task.java
new file mode 100644
index 0000000..9d112f7
--- /dev/null
+++ b/spring-framework/spring-task-manager-structure/src/main/java/com/example/spring/task/Task.java
@@ -0,0 +1,5 @@
+package com.example.spring.task;
+
+public class Task {
+
+}
diff --git a/spring-framework/spring-task-manager-structure/src/main/java/com/example/spring/task/TaskManager.java b/spring-framework/spring-task-manager-structure/src/main/java/com/example/spring/task/TaskManager.java
new file mode 100644
index 0000000..9e4cbf4
--- /dev/null
+++ b/spring-framework/spring-task-manager-structure/src/main/java/com/example/spring/task/TaskManager.java
@@ -0,0 +1,11 @@
+package com.example.spring.task;
+
+/**
+ * Business logic operations.
+ * Only method signatures are defined.
+ */
+public interface TaskManager {
+    // Method signatures
+    public void create(Task task);
+
+}
diff --git a/spring-framework/spring-task-manager-structure/src/main/java/com/example/spring/task/TaskManagerApp.java b/spring-framework/spring-task-manager-structure/src/main/java/com/example/spring/task/TaskManagerApp.java
new file mode 100644
index 0000000..0e2c65d
--- /dev/null
+++ b/spring-framework/spring-task-manager-structure/src/main/java/com/example/spring/task/TaskManagerApp.java
@@ -0,0 +1,20 @@
+package com.example.spring.task;
+
+import org.springframework.context.support.AbstractApplicationContext;
+import org.springframework.context.support.ClassPathXmlApplicationContext;
+
+public class TaskManagerApp {
+
+	/**
+	 * @param args
+	 */
+	public static void main(String[] args) {
+		
+		AbstractApplicationContext ctx = new ClassPathXmlApplicationContext(new String[] {"classpath:META-INF/spring/applicationContext.xml"});
+
+		TextUI ui = ctx.getBean("textUI", TextUI.class);
+	
+		ui.start();
+	}
+
+}
diff --git a/spring-framework/spring-task-manager-structure/src/main/java/com/example/spring/task/TaskManagerImpl.java b/spring-framework/spring-task-manager-structure/src/main/java/com/example/spring/task/TaskManagerImpl.java
new file mode 100644
index 0000000..46ca02e
--- /dev/null
+++ b/spring-framework/spring-task-manager-structure/src/main/java/com/example/spring/task/TaskManagerImpl.java
@@ -0,0 +1,20 @@
+package com.example.spring.task;
+
+import com.example.spring.task.dao.TaskDAO;
+
+public class TaskManagerImpl implements TaskManager {
+
+    private TaskDAO taskDAO;
+
+    public void setTaskDAO(TaskDAO taskDAO) {
+        this.taskDAO = taskDAO;
+    }
+    
+    @Override
+    public void create(Task task) {
+        // Actual business logic related to creating a task
+        // ..
+        Task newTask = taskDAO.create(task);
+        // ...
+    }
+}
diff --git a/spring-framework/spring-task-manager-structure/src/main/java/com/example/spring/task/TextUI.java b/spring-framework/spring-task-manager-structure/src/main/java/com/example/spring/task/TextUI.java
new file mode 100644
index 0000000..7b4676f
--- /dev/null
+++ b/spring-framework/spring-task-manager-structure/src/main/java/com/example/spring/task/TextUI.java
@@ -0,0 +1,18 @@
+package com.example.spring.task;
+
+public class TextUI {
+
+    private TaskManager taskManager;
+
+    public void setTaskManager(TaskManager taskManager) {
+        this.taskManager = taskManager;
+    }
+
+    public void start() {
+        System.out.println("Starting TextUI...");
+        //..
+        Task t = new Task();
+        taskManager.create(t);
+        //..
+    }
+}
diff --git a/spring-framework/spring-task-manager-structure/src/main/java/com/example/spring/task/dao/TaskDAO.java b/spring-framework/spring-task-manager-structure/src/main/java/com/example/spring/task/dao/TaskDAO.java
new file mode 100644
index 0000000..3f5ad2b
--- /dev/null
+++ b/spring-framework/spring-task-manager-structure/src/main/java/com/example/spring/task/dao/TaskDAO.java
@@ -0,0 +1,10 @@
+package com.example.spring.task.dao;
+
+import com.example.spring.task.Task;
+
+/**
+ * Provide an object view of a data store
+ */
+public interface TaskDAO {
+    public Task create(Task task);
+}
diff --git a/spring-framework/spring-task-manager-structure/src/main/java/com/example/spring/task/dao/jdbc/JDBCTaskDAO.java b/spring-framework/spring-task-manager-structure/src/main/java/com/example/spring/task/dao/jdbc/JDBCTaskDAO.java
new file mode 100644
index 0000000..37ced85
--- /dev/null
+++ b/spring-framework/spring-task-manager-structure/src/main/java/com/example/spring/task/dao/jdbc/JDBCTaskDAO.java
@@ -0,0 +1,35 @@
+package com.example.spring.task.dao.jdbc;
+
+import java.sql.Connection;
+
+import javax.sql.DataSource;
+
+import com.example.spring.task.Task;
+import com.example.spring.task.dao.TaskDAO;
+
+/**
+ * Use JDBC API to interact with a DB
+ */
+public class JDBCTaskDAO implements TaskDAO {
+
+    private DataSource dataSource;
+
+    public void setDataSource(DataSource dataSource) {
+        this.dataSource = dataSource;
+    }
+
+    @Override
+    public Task create(Task task) {
+        // Use a DB connection
+        // Connection conn = dataSource.getConnection();
+        
+        // Perform an insert
+        // Return a Task object with ID set
+        
+        System.out.println("JDBCTaskDAO: inserting a record to DB.");
+        //task.setId(dbTaskId);
+        
+        return task; 
+    }
+
+}