Markus fdb9be1e76 Work towards #56: Add permalink to every pattern
This makes cleaner URLs thanks to jekyll
2015-08-15 18:03:05 +02:00

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---
layout: pattern
title: Private Class Data
folder: private-class-data
permalink: /patterns/private-class-data/
categories: pattern_cat
tags: pattern_tag
---
**Intent:** Private Class Data design pattern seeks to reduce exposure of
attributes by limiting their visibility. It reduces the number of class
attributes by encapsulating them in single Data object.
![alt text](./etc/private-class-data.png "Private Class Data")
**Applicability:** Use the Private Class Data pattern when
* you want to prevent write access to class data members