Narendra Pathai d7893c1fc2
Updated incorrect tag
Corrected improper tag from Difficulty-Easy to Difficulty-Beginner
2018-05-16 12:36:17 +05:30

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---
layout: pattern
title: Dirty Flag
folder: dirty-flag
permalink: /patterns/dirty-flag/
categories: Other
tags:
- Java
- Difficulty-Beginner
- Performance
---
## Intent
To avoid expensive re-acquisition of resources. The resources retain their identity, are kept in some
fast-access storage, and are re-used to avoid having to acquire them again.
![alt text](./etc/dirty-flag.png "Dirty Flag")
## Applicability
Use the Dirty Flag pattern when
* Repetitious acquisition, initialization, and release of the same resource causes unnecessary performance overhead.
## Credits
* [Design Patterns: Dirty Flag](https://www.takeupcode.com/podcast/89-design-patterns-dirty-flag/)