OODB Education & Training

1. Introduction

Object-Oriented Databases (OODB) provide a way to store data in a manner that is consistent with object-oriented programming principles. This lesson will explore OODB education and training, focusing on core concepts, practical applications, and future trends.

2. Key Concepts

• Object: An instance of a class containing data and methods.
• Class: A blueprint for creating objects, defining properties and behaviors.
• Inheritance: A mechanism to create a new class from an existing class.
• Encapsulation: The bundling of data and methods that operate on that data within a single unit.
• Polymorphism: The ability to present the same interface for differing underlying forms (data types).

3. Step-by-Step Guide

Follow these steps to create a simple OODB application:

1. Define the classes:

class Person {
    String name;
    int age;

    void display() {
        System.out.println("Name: " + name + ", Age: " + age);
    }
}
                    

2. Create objects:

Person p1 = new Person();
p1.name = "Alice";
p1.age = 30;
p1.display();
                    

3. Store the object in the OODB:

OODB db = new OODB();
db.store(p1);
                    

4. Best Practices

• Design classes with clear responsibilities.
• Use encapsulation to protect data.
• Implement validation within class methods.
• Regularly back up the database.
• Stay updated with the latest OODB technologies.

5. FAQ