Java Data Objects Assignment Help

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Java Data Objects (JDO) is a specification of Java object persistence. One of its features is a transparency of the persistent services to the domain model. JDO persistent objects are ordinary Java programming language classes (POJOs) there's no requirement for them to implement certain interfaces or extend from special classes.

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Feature of JDO programming language:

• Ease of use
• Portability
• Database independence
• High performance
• Integration with EJB

JDO Programming code

{`import java.io.*;
  import java.util.*;
  import javax.jdo.*;

  public class CreateDataStore {
  public static void main(String[] args) {
  try {
  Properties properties = new Properties();
  InputStream stream = new FileInputStream("datastore.properties");
  properties.load(stream);
  properties.put("com.sun.jdori.option.ConnectionCreate", "true");
  PersistenceManagerFactory pmf =
  JDOHelper.getPersistenceManagerFactory(properties);
  PersistenceManager pm = pmf.getPersistenceManager();
  Transaction tx = pm.currentTransaction();
  tx.begin();
  tx.commit();
  } catch (Exception e) {
  System.out.println("Problem creating database");
  e.printStackTrace();
  }
  }
  }`}