#355 init abstract-document module

abstract-document/README.md

@@ -0,0 +1,26 @@
+---
+layout: pattern
+title: Abstract Document
+folder: abstract-document
+permalink: /patterns/abstract-document/
+categories: Structural
+tags: 
+ - Java
+ - Difficulty-Intermediate
+---
+
+## Intent
+Achieve flexibility of untyped languages and keep the type-safety 
+
+![alt text](./etc/abstract-document_1.png "Abstract Document")
+
+## Applicability
+Use the Abstract Document Pattern when
+
+* there is a need for dynamic properties
+* you want a better way to organize domain
+* you want loosely coupled system with flexibility of untyped languages
+
+## Real world examples
+
+* [Speedment](https://github.com/speedment/speedment)