mirror of
https://github.com/tiennm99/java-design-patterns.git
synced 2026-05-19 05:25:56 +00:00
Maya
29 lines
906 B
Markdown
29 lines
906 B
Markdown
---
|
|
title: Dirty Flag
|
|
shortTitle: Dirty Flag
|
|
category: Behavioral
|
|
language: ar
|
|
tag:
|
|
- Game programming
|
|
- Performance
|
|
---
|
|
|
|
## Also known as
|
|
* IsDirty pattern
|
|
|
|
## Purpose
|
|
Avoid the costly re-acquisition of resources. Resources retain their identity, are stored in some fast-access storage, and are reused to avoid having to acquire them again.
|
|
|
|
## Class Diagram
|
|
|
|
|
|
## Applicability
|
|
Use the Dirty Flag pattern when
|
|
|
|
* The repetitive 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/)
|
|
* [J2EE Design Patterns](https://www.amazon.com/gp/product/0596004273/ref=as_li_tl?ie=UTF8&camp=1789&creative=9325&creativeASIN=0596004273&linkCode=as2&tag=javadesignpat-20&linkId=48d37c67fb3d845b802fa9b619ad8f31)
|