Amazon SimpleDB Web Service with Typica API and Java

Posted on 04 March 2009 by Sri Nivas

Amazon SimpleDB Web Service with Typica API and Java

In this article I will explain how to use Amazon SimpleDB web service from a Java application.

I am going to create a student object. After creating the student object, we will use Amazon SimpleDB web service to create a student in Amazon SimpleDB database, update the student, list all students in the datbase, print count of students in the database, delete a student from the database.

All we are doing is CRUD operations [Create, Read, Update, Delete] with student object.

Prerequisites:

To test this you will need a Amazon SimpleDB account with Amazon Web Services.

Step 0: let us create a database in Amazon SimpleDB

com.xerox.amazonws.sdb.SimpleDB studentDB = new SimpleDB(key,password);

The key and password above are provided by Amazon web service, when you register with them.

Step 1: Now let us create our Student Domain

studentDB.createDomain(“student”);

Domain is same as a table in relational database with columns.

Each row in a domain is called item.

Each item will have attributes.

Each attribute will have a name and value.

Step 2: Create Student object (Student.java)

package com.vulab.domain;

import java.util.Date;

public class Student {
private String id;
private String salutation;
private String jobTitle;
private String department;
private String company;
private String firstName;
private String lastName;
private String addressLineOne;
private String addressLineTwo;
private String city;
private String state;
private String zip;
private String country;
private String workPhone;
private String workPhoneExtension;
private String fax;
private String homePhone;
private String cellPhone;
private String email;
private String userId;
private String password;
private String dateOfBirth;

public String getId() {
return id;
}

public void setId(String id) {
this.id = id;
}

public String getSalutation() {
return salutation;
}

public void setSalutation(String salutation) {
this.salutation = salutation;
}

public String getJobTitle() {
return jobTitle;
}

public void setJobTitle(String jobTitle) {
this.jobTitle = jobTitle;
}

public String getDepartment() {
return department;
}

public void setDepartment(String department) {
this.department = department;
}

public String getCompany() {
return company;
}

public void setCompany(String company) {
this.company = company;
}

public String getFirstName() {
return firstName;
}

public void setFirstName(String firstName) {
this.firstName = firstName;
}

public String getLastName() {
return lastName;
}

public void setLastName(String lastName) {
this.lastName = lastName;
}

public String getAddressLineOne() {
return addressLineOne;
}

public void setAddressLineOne(String addressLineOne) {
this.addressLineOne = addressLineOne;
}

public String getAddressLineTwo() {
return addressLineTwo;
}

public void setAddressLineTwo(String addressLineTwo) {
this.addressLineTwo = addressLineTwo;
}

public String getCity() {
return city;
}

public void setCity(String city) {
this.city = city;
}

public String getState() {
return state;
}

public void setState(String state) {
this.state = state;
}

public String getZip() {
return zip;
}

public void setZip(String zip) {
this.zip = zip;
}

public String getCountry() {
return country;
}

public void setCountry(String country) {
this.country = country;
}

public String getWorkPhone() {
return workPhone;
}

public void setWorkPhone(String workPhone) {
this.workPhone = workPhone;
}

public String getWorkPhoneExtension() {
return workPhoneExtension;
}

public void setWorkPhoneExtension(String workPhoneExtension) {
this.workPhoneExtension = workPhoneExtension;
}

public String getFax() {
return fax;
}

public void setFax(String fax) {
this.fax = fax;
}

public String getHomePhone() {
return homePhone;
}

public void setHomePhone(String homePhone) {
this.homePhone = homePhone;
}

public String getCellPhone() {
return cellPhone;
}

public void setCellPhone(String cellPhone) {
this.cellPhone = cellPhone;
}

public String getEmail() {
return email;
}

public void setEmail(String email) {
this.email = email;
}

public String getUserId() {
return userId;
}

public void setUserId(String userId) {
this.userId = userId;
}

public String getPassword() {
return password;
}

public void setPassword(String password) {
this.password = password;
}

public String getDateOfBirth() {
return dateOfBirth;
}

public void setDateOfBirth(String dateOfBirth) {
this.dateOfBirth = dateOfBirth;
}
}

Step 3: Let us code the Student Data Access Object (StudentDAO.java) Create Read Update Delete Functionality

package com.vulab.dao;
import java.util.List;
import com.vulab.domain.Student;

public interface StudentDAO {
	public Student createStudent(Student student)throws Exception;

	public void updateStudent(Student student)throws Exception;

	public Student getStudentById(int studentId)throws Exception;	

	public void deleteStudentById(int studentId)throws Exception;

	public void deleteStudent(Student student)throws Exception;

	public List<Student> getAllStudents()throws Exception;

	public int getTotalCountOfStudents()throws Exception;
}

Step 4: Let us code the StudentDAO implementation (StudentDAOImpl.java)

package com.vulab.dao;

import java.util.ArrayList;
import java.util.List;
import java.util.Random;

import com.vulab.domain.Student;
import com.vulab.util.SimpleDBUtil;
import com.xerox.amazonws.sdb.Domain;
import com.xerox.amazonws.sdb.Item;
import com.xerox.amazonws.sdb.ItemAttribute;
import com.xerox.amazonws.sdb.QueryResult;
import com.xerox.amazonws.sdb.SimpleDB;

public class StudentDAOImpl implements StudentDAO {

	public static final String domain = "student";

public Student createStudent(Student student) throws Exception {

		SimpleDB studentDB = SimpleDBUtil.getDatabase();
		Item studentItem;
		List<ItemAttribute> attributes = new ArrayList<ItemAttribute>();
		Domain domain = studentDB.getDomain(this.domain);
		Random randomGenerator = new Random();
		int id = randomGenerator.nextInt(100000);
		studentItem = domain.getItem(String.valueOf(id));
		student.setId(String.valueOf(id));
		attributes.add(new ItemAttribute("id", student.getId(), false));
		attributes.add(new ItemAttribute("firstName", student.getFirstName(), false));
		attributes.add(new ItemAttribute("lastName", student.getLastName(), false));
		attributes.add(new ItemAttribute("addressLineOne", student.getAddressLineOne(), false));
		attributes.add(new ItemAttribute("addressLineTwo", student.getAddressLineTwo(), false));
		attributes.add(new ItemAttribute("city", student.getCity(), false));
		attributes.add(new ItemAttribute("state", student.getState(), false));
		attributes.add(new ItemAttribute("zip", student.getZip(), false));
		attributes.add(new ItemAttribute("country", student.getCountry(), false));
		attributes.add(new ItemAttribute("workPhone", student.getWorkPhone(), false));
		attributes.add(new ItemAttribute("workPhoneExtension", student.getWorkPhoneExtension(), false));
		attributes.add(new ItemAttribute("fax", student.getFax(), false));
		attributes.add(new ItemAttribute("homePhone", student.getHomePhone(), false));
		attributes.add(new ItemAttribute("cellPhone", student.getCellPhone(), false));
		attributes.add(new ItemAttribute("email", student.getEmail(), false));
		attributes.add(new ItemAttribute("userId", student.getUserId(), false));
		attributes.add(new ItemAttribute("password", student.getPassword(), false));
		attributes.add(new ItemAttribute("dateOfBirth", student.getDateOfBirth(), false));
		attributes.add(new ItemAttribute("salutation", student.getSalutation(), false));
		attributes.add(new ItemAttribute("jobTitle", student.getJobTitle(), false));
		attributes.add(new ItemAttribute("department", student.getDepartment(), false));
		attributes.add(new ItemAttribute("company", student.getCompany(), false));

		studentItem.putAttributes(attributes);

		return student;
	}

public void updateStudent(Student student) throws Exception {


		SimpleDB studentDB = SimpleDBUtil.getDatabase();
		Domain domain = studentDB.getDomain(this.domain);
		Item studentItem = domain.getItem(String.valueOf(student.getId()));
		if(studentItem==null)
			throw new Exception("Cannot update db as item does not exist in domain with id "+student.getId());
		List<String> attributesToGet = new ArrayList<String>();
		List<ItemAttribute> attrs = studentItem.getAttributes(attributesToGet);

		List<ItemAttribute> attributes = new ArrayList<ItemAttribute>();

		attributes.add(new ItemAttribute("id", student.getId(), true));

		attributes.add(new ItemAttribute("salutation", student.getSalutation(), true));

		attributes.add(new ItemAttribute("jobTitle", student.getJobTitle(), true));

		attributes.add(new ItemAttribute("department", student.getDepartment(), true));

		attributes.add(new ItemAttribute("company", student.getCompany(), true));

		attributes.add(new ItemAttribute("firstName", student.getFirstName(), true));

		attributes.add(new ItemAttribute("lastName", student.getLastName(), true));

		attributes.add(new ItemAttribute("addressLineOne", student.getAddressLineOne(), true));

		attributes.add(new ItemAttribute("addressLineTwo", student.getAddressLineTwo(), true));

		attributes.add(new ItemAttribute("city", student.getCity(), true));

		attributes.add(new ItemAttribute("state", student.getState(), true));

		attributes.add(new ItemAttribute("zip", student.getZip(), true));

		attributes.add(new ItemAttribute("country", student.getCountry(), true));

		attributes.add(new ItemAttribute("workPhone", student.getWorkPhone(), true));

		attributes.add(new ItemAttribute("workPhoneExtension", student.getWorkPhoneExtension(), true));

		attributes.add(new ItemAttribute("fax", student.getFax(), true));

		attributes.add(new ItemAttribute("homePhone", student.getHomePhone(), true));

		attributes.add(new ItemAttribute("firstName", student.getFirstName(), true));

		attributes.add(new ItemAttribute("lastName", student.getLastName(), true));

		attributes.add(new ItemAttribute("cellPhone", student.getCellPhone(), true));

		attributes.add(new ItemAttribute("email", student.getEmail(), true));

		attributes.add(new ItemAttribute("userId", student.getUserId(), true));

		attributes.add(new ItemAttribute("password", student.getPassword(), true));

		attributes.add(new ItemAttribute("dateOfBirth", student.getDateOfBirth(), true));

		studentItem.putAttributes(attributes);

	}

public Student getStudentById(int studentId) throws Exception {

		SimpleDB studentDB = SimpleDBUtil.getDatabase();
		Domain domain = studentDB.getDomain(this.domain);
		Item studentItem = domain.getItem(String.valueOf(studentId));
		Student student = new Student();
		List<String> attributesToGet = new ArrayList<String>();
		List<ItemAttribute> attrs = studentItem.getAttributes(attributesToGet);
		for (ItemAttribute currentAttribute : attrs) {
			if (currentAttribute.getName().equals("id")) {
				student.setId(currentAttribute.getValue());
			} else if (currentAttribute.getName().equals("salutation")) {
				student.setSalutation(currentAttribute.getValue());
			} else if (currentAttribute.getName().equals("jobTitle")) {
				student.setJobTitle(currentAttribute.getValue());
			} else if (currentAttribute.getName().equals("department")) {
				student.setDepartment(currentAttribute.getValue());
			} else if (currentAttribute.getName().equals("company")) {
				student.setCompany(currentAttribute.getValue());
			} else if (currentAttribute.getName().equals("firstName")) {
				student.setFirstName(currentAttribute.getValue());
			} else if (currentAttribute.getName().equals("lastName")) {
				student.setLastName(currentAttribute.getValue());
			} else if (currentAttribute.getName().equals("addressLineOne")) {
				student.setAddressLineOne(currentAttribute.getValue());
			} else if (currentAttribute.getName().equals("addressLineTwo")) {
				student.setAddressLineTwo(currentAttribute.getValue());
			} else if (currentAttribute.getName().equals("city")) {
				student.setCity(currentAttribute.getValue());
			} else if (currentAttribute.getName().equals("state")) {
				student.setState(currentAttribute.getValue());
			} else if (currentAttribute.getName().equals("zip")) {
				student.setZip(currentAttribute.getValue());
			} else if (currentAttribute.getName().equals("country")) {
				student.setCountry(currentAttribute.getValue());
			} else if (currentAttribute.getName().equals("workPhone")) {
				student.setWorkPhone(currentAttribute.getValue());
			} else if (currentAttribute.getName().equals("workPhoneExtension")) {
				student.setWorkPhoneExtension(currentAttribute.getValue());
			} else if (currentAttribute.getName().equals("fax")) {
				student.setFax(currentAttribute.getValue());
			} else if (currentAttribute.getName().equals("homePhone")) {
				student.setHomePhone(currentAttribute.getValue());
			} else if (currentAttribute.getName().equals("firstName")) {
				student.setFirstName(currentAttribute.getValue());
			} else if (currentAttribute.getName().equals("lastName")) {
				student.setLastName(currentAttribute.getValue());
			} else if (currentAttribute.getName().equals("cellPhone")) {
				student.setCellPhone(currentAttribute.getValue());
			} else if (currentAttribute.getName().equals("email")) {
				student.setEmail(currentAttribute.getValue());
			} else if (currentAttribute.getName().equals("userId")) {
				student.setUserId(currentAttribute.getValue());
			} else if (currentAttribute.getName().equals("password")) {
				student.setPassword(currentAttribute.getValue());
			} else if (currentAttribute.getName().equals("dateOfBirth")) {
				student.setDateOfBirth(currentAttribute.getValue());
			}
		}
		return student;
	}

public void deleteStudentById(int studentId) throws Exception {

		SimpleDB studentDB = SimpleDBUtil.getDatabase();
		Domain domain = studentDB.getDomain(this.domain);
		domain.deleteItem(String.valueOf(studentId));
	}

public void deleteStudent(Student student) throws Exception {

		SimpleDB studentDB = SimpleDBUtil.getDatabase();
		Domain domain = studentDB.getDomain(this.domain);
		domain.deleteItem(student.getId());
	}

public List<Student> getAllStudents() throws Exception {

		List<Student> studentList = new ArrayList<Student>();
		SimpleDB studentDB = SimpleDBUtil.getDatabase();
		Domain domain = studentDB.getDomain(this.domain);
		List<Item> items;
		QueryResult result = null;
		result = domain.listItems();
		items = result.getItemList();
		List<String> attributesToGet = new ArrayList<String>();
		for (Item studentItem : items) {
			Student student = new Student();
			List<ItemAttribute> attrs = studentItem.getAttributes(attributesToGet);
			for (ItemAttribute currentAttribute : attrs) {
				if (currentAttribute.getName().equals("id")) {
					student.setId(currentAttribute.getValue());
				} else if (currentAttribute.getName().equals("salutation")) {
					student.setSalutation(currentAttribute.getValue());
				} else if (currentAttribute.getName().equals("jobTitle")) {
					student.setJobTitle(currentAttribute.getValue());
				} else if (currentAttribute.getName().equals("department")) {
					student.setDepartment(currentAttribute.getValue());
				} else if (currentAttribute.getName().equals("company")) {
					student.setCompany(currentAttribute.getValue());
				} else if (currentAttribute.getName().equals("firstName")) {
					student.setFirstName(currentAttribute.getValue());
				} else if (currentAttribute.getName().equals("lastName")) {
					student.setLastName(currentAttribute.getValue());
				} else if (currentAttribute.getName().equals("addressLineOne")) {
					student.setAddressLineOne(currentAttribute.getValue());
				} else if (currentAttribute.getName().equals("addressLineTwo")) {
					student.setAddressLineTwo(currentAttribute.getValue());
				} else if (currentAttribute.getName().equals("city")) {
					student.setCity(currentAttribute.getValue());
				} else if (currentAttribute.getName().equals("state")) {
					student.setState(currentAttribute.getValue());
				} else if (currentAttribute.getName().equals("zip")) {
					student.setZip(currentAttribute.getValue());
				} else if (currentAttribute.getName().equals("country")) {
					student.setCountry(currentAttribute.getValue());
				} else if (currentAttribute.getName().equals("workPhone")) {
					student.setWorkPhone(currentAttribute.getValue());
				} else if (currentAttribute.getName().equals("workPhoneExtension")) {
					student.setWorkPhoneExtension(currentAttribute.getValue());
				} else if (currentAttribute.getName().equals("fax")) {
					student.setFax(currentAttribute.getValue());
				} else if (currentAttribute.getName().equals("homePhone")) {
					student.setHomePhone(currentAttribute.getValue());
				} else if (currentAttribute.getName().equals("firstName")) {
					student.setFirstName(currentAttribute.getValue());
				} else if (currentAttribute.getName().equals("lastName")) {
					student.setLastName(currentAttribute.getValue());
				} else if (currentAttribute.getName().equals("cellPhone")) {
					student.setCellPhone(currentAttribute.getValue());
				} else if (currentAttribute.getName().equals("email")) {
					student.setEmail(currentAttribute.getValue());
				} else if (currentAttribute.getName().equals("userId")) {
					student.setUserId(currentAttribute.getValue());
				} else if (currentAttribute.getName().equals("password")) {
					student.setPassword(currentAttribute.getValue());
				} else if (currentAttribute.getName().equals("dateOfBirth")) {
					student.setDateOfBirth(currentAttribute.getValue());
				}

			}
			if (student.getId() != null)
				studentList.add(student);
		}

		return studentList;
	}

public int getTotalCountOfStudents() throws Exception {

		SimpleDB studentDB = SimpleDBUtil.getDatabase();
		Domain domain = studentDB.getDomain(this.domain);
		List<Item> items;
		QueryResult result = null;
		result = domain.listItems();
		items = result.getItemList();
		return items.size();
	}

}

Step 5:let us create a Student Service (StudentService.java)

This service can be used by our web front end actions.

package com.vulab.service;

import java.util.List;

import com.vulab.domain.Student;

public interface StudentService
{
	public Student createStudent(Student student)throws Exception;

	public void updateStudent(Student student)throws Exception;

	public Student getStudentById(int studentId)throws Exception;	

	public void deleteStudentById(int studentId)throws Exception;

	public void deleteStudent(Student student)throws Exception;

	public List<Student> getAllStudents()throws Exception;

	public int getTotalCountOfStudents()throws Exception;	

}

Step 6:let us implement the Student Service Interface (StudentServiceImpl.java)

package com.vulab.service;

import java.util.List;

import com.vulab.dao.StudentDAO;
import com.vulab.dao.StudentDAOImpl;
import com.vulab.domain.Student;
public class StudentServiceImpl implements StudentService {

	StudentDAO studentDAO = new StudentDAOImpl();

	public Student createStudent(Student student) throws Exception {
		return studentDAO.createStudent(student);
	}

	public void updateStudent(Student student) throws Exception {
		studentDAO.updateStudent(student);
	}

	public Student getStudentById(int studentId) throws Exception {
		return studentDAO.getStudentById(studentId);
	}

	public void deleteStudentById(int studentId) throws Exception {
		studentDAO.deleteStudentById(studentId);
	}

	public void deleteStudent(Student student) throws Exception {
		studentDAO.deleteStudent(student);
	}

	public List<Student> getAllStudents() throws Exception {
		return studentDAO.getAllStudents();
	}

	public int getTotalCountOfStudents() throws Exception {
		return studentDAO.getTotalCountOfStudents();
	}

}

Step 7:Let us write a JUnit test case to test our Student Service

package com.vulab.test.service;

import java.util.ArrayList;
import java.util.List;

import junit.framework.TestCase;

import com.vulab.domain.Student;
import com.vulab.service.StudentService;
import com.vulab.service.StudentServiceImpl;

**/* What are we doing in this test case**

* we are creating a student in the domain student

* we are updating the created students first name and last name

* we are retrieving the updated object from database again and checking if the first name is updated

* we are listing all the students in the database

* we are printing the count of students in the database

* we are deleting a student from the database

* we are listing the students in the database after delete

* we are printing the number of students in the database after delete.

*/

public class TestStudentService extends TestCase
{

	public void testCreate() throws Exception
	{
		Student student = new Student();
		student.setAddressLineOne("116 Franklin Lane");
		student.setAddressLineTwo("none");
		student.setCellPhone("5454666");
		student.setCity("Nainza");
		student.setCompany("alpha");
		student.setCountry("beta");
		student.setDateOfBirth("june 6th 4532");
		student.setDepartment("learn");
		student.setEmail("beta@alpha.com");
		student.setFax("2342342");
		student.setFirstName("John");
		student.setHomePhone("2342342342");
		student.setJobTitle("learner");
		student.setLastName("keller");
		student.setPassword("secret");
		student.setSalutation("Mr.");
		student.setState("NJ");
		student.setUserId("user32423");
		student.setWorkPhone("534534534");
		student.setZip("34345");

		StudentService studentService = new StudentServiceImpl();
		Student st = studentService.createStudent(student);

		System.out.println("Created students first name: "+student.getFirstName());
		System.out.println("Student with the following id is created "+st.getId());

		student.setFirstName("karen");
		student.setLastName("parker");
		studentService.updateStudent(student);
		System.out.println("Student is updated");

		Student studentFromDB = studentService.getStudentById(Integer.parseInt(st.getId()));
		System.out.println("Student first name is "+studentFromDB.getFirstName());

		List<Student> studentList = new ArrayList<Student>();
		studentList = studentService.getAllStudents();
		System.out.println("listing all students");
		for(Student std: studentList)
		{
			System.out.println("*************************");
			System.out.println("Student Id: "+std.getId());
			System.out.println("First Name: "+std.getFirstName());
		}

		System.out.println("Number of students in domain: "+studentService.getTotalCountOfStudents());

		System.out.println("Now I am going to delete a student with id "+studentFromDB.getId());
		studentService.deleteStudentById(Integer.parseInt(studentFromDB.getId()));

		System.out.println("Now showing all students again");
		List<Student> studentAgainList = new ArrayList<Student>();
		studentAgainList = studentService.getAllStudents();
		System.out.println("listing all students");
		for(Student std: studentAgainList)
		{
			System.out.println("*************************");
			System.out.println("Student Id: "+std.getId());
			System.out.println("First Name: "+std.getFirstName());
		}

		System.out.println("Number of students in domain: "+studentService.getTotalCountOfStudents());

	}

}

Step 8: Let us review the result from our JUnit testcase

Created students first name: John

Student with the following id is created 15509

Student is updated

Student first name is karen

listing all students

*************************

Student Id: 83746

First Name: John

*************************

Student Id: 39810

First Name: karen

*************************

Student Id: 15509

First Name: karen

Number of students in domain: 3

Now I am going to delete a student with id 15509

Now showing all students again

listing all students

*************************

Student Id: 83746

First Name: John

*************************

Student Id: 39810

First Name: karen

Number of students in domain: 3

Step 9: Additional Utility Classes used for achieving Step 0 and Step 1

For Step 0 & Step 1: To create a SimpleDB instance and then creating a domain called student, I am using the below two classes.

SimpleDBUtil.java

package com.vulab.util;

import com.xerox.amazonws.sdb.SimpleDB;

public class SimpleDBUtil
{

// Please get your own Key and Value from Amazon Web Service, Registration required.

public static final String key =”";
public static final String secret =”";

public static SimpleDB getDatabase()
{
if (key.equals(“”) || secret.equals(“”)) {
System.err.println(“Please fill in the key and secret with your Amazoin SimpleDB credentials”);
System.err.println(“If you don’t have credentials, please register with Amazon webservices to get one.”);
System.err.println(“Please rememeber that this is a paid service and play around carefully!!”);
System.err.println(“Warning: please do not share your secret key or you might end up with a huge bill!”);
System.exit(0);
}
SimpleDB studentDB = new SimpleDB(key,secret);
return studentDB;
}

}

SimpleDBCreateDomain.java

package com.vulab.util;

/* USAGE: use this program to create your database and table or domain in the database.
* Please run this only once as if you already have data in your domain. It will be lost
* on rerunning this program.
* This program will create a Database in SimpleDB named studentDB
* A domain or table named student will be created in studentDB
*/

import com.xerox.amazonws.sdb.*;

public class SimpleDBCreateDomain {

public static void main(String[] args) {
SimpleDB studentDB = SimpleDBUtil.getDatabase();
try {
studentDB.createDomain(“student”);
} catch (SDBException ex) {
System.err.println(“message : ” + ex.getMessage());
System.err.println(“requestID : ” + ex.getRequestId());
}
}

}

Step 10: Recap what we have done!

We created a SimpleDB instance using Amazon SimpleDB web service.

Tested CRUD functionality with a student object using Amazon Simple DB Web Service.

Step 11: What next?

This work is left for you. Create a domain called Course (learning course).

Enroll a student to a course using Amazon Simple DB and update the above Student Service to add the new functionality.

If you find this article useful, Please leave a comment.

API Used: Typica from Google Code

Typica is a java client library for a variety of Amazon Web Services. The name (TIP-ik-uh) was chosen because this is a coffee grown in Brazil, through which the Amazon flows. (has the Java and Amazon references)

list of jars being used:

apache-mime4j-0.5.jar
commons-codec-1.3.jar
commons-httpclient-3.1.jar
commons-logging-1.1.1.jar
httpclient-4.0-beta2.jar
httpcore-4.0.jar
httpcore-4.0-beta3.jar
httpcore-nio-4.0.jar
httpmime-4.0-beta2.jar
JAXB2_20070122.jar
junit-4.5.jar
typica.jar

Download Source Code for this tutorial from Google Code

Tags: amazon, Amazon SimpleDB Tutorial, amazon webservices, cloud computing, java simpleDB, java web service, scaling data base, simpledb, simpledb with java, webservices

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