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Abstract Document design pattern

provides consistent way to handle hierarchical and tree-like data structures by defining a common interface for various document types

It separates the core document structure from specific data formats,

enabling dynamics updates and simplified maintenance

The Abstract Document design pattern in Java allows dynamics handling of non-static properties.

This pattern uses concept of traits to enable type safety and separate properties of different classes into set of interfaces.

Real-world example

> Library system, where books can have diverse formats and attributes:

|__Physical books

|__eBooks

|__Audiobooks

> Each format has unique properties

|__Page count for physical books

|__ File size for eBooks

|__ Duration for audiobooks

▲ The Abstract Document design pattern allows library system...

|__ manages diverse formats flexibly

|__ can store and retrieve properties dynamically, without needing a rigid structure for each book type

|__ make it easier to add new formats or attributes in the future without significant changes to the codebase

## Abstract Document pattern allows attaching properties to objects without them knowing about it.

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