Also known as

• Object-Relational Mapping (ORM)

Intent of the Data Mapper Pattern

The Data Mapper pattern aims to create an abstraction layer between the database and the business logic, allowing them to evolve independently. It maps data from the database objects to in-memory data structures and vice versa, minimizing direct dependencies between the application's core logic and the underlying database structure. This decoupling is essential in promoting maintainability and flexibility in Java programming.

Also known as

• Conceptual Model
• Domain Object Model

Intent of Domain Model Design Pattern

The Domain Model pattern aims to create a conceptual model in your software that matches the real-world system it's designed to represent. It involves using rich domain objects that encapsulate both data and behavior relevant to the application domain, ensuring business logic is centralized.

Intent of Interpreter Design Pattern

The Interpreter design pattern is used to define a grammatical representation for a language and provides an interpreter to handle this grammar. This pattern is useful in scenarios where a specific set of rules or grammar needs to be interpreted and acted upon, such as in arithmetic expressions or scripting languages.

Also known as

• Transparent Objects

Intent of Naked Objects Design Pattern

To enable the rapid development of maintainable systems by representing all business objects directly and automatically creating the user interface from these definitions. Naked Objects design pattern is essential for developers aiming to align user interfaces with domain models seamlessly.

Also known as

• Filter
• Criteria

Intent of Specification Design Pattern

Encapsulate business rules and criteria that an object must satisfy to enable checking these rules in various parts of the application.

Detailed Explanation of Specification Pattern with Real-World Examples

Also known as

• Fluent Builder

Intent of Step Builder Design Pattern

The Step Builder pattern in Java is an advanced technique to create complex objects with clarity and flexibility. It is perfect for scenarios requiring meticulous step-by-step object construction.

Also known as

• Scripted Transactions

Intent of Transaction Script Design Pattern

The Transaction Script pattern in Java organizes business logic by procedures where each procedure handles a single request from the presentation.

Detailed Explanation of Transaction Script Pattern with Real-World Examples

Also known as

• Embedded Value
• Immutable Object
• Inline Value
• Integrated Value

Intent of Value Object Design Pattern

The Value Object pattern in Java creates immutable objects that represent a descriptive aspect of the domain with no conceptual identity. It aims to enhance performance and reduce memory overhead by storing frequently accessed immutable data directly within the object that uses it, rather than separately.