java-design-patterns/model-view-presenter/README.md

---
layout: pattern
title: Model-View-Presenter
folder: model-view-presenter
permalink: /patterns/model-view-presenter/
categories: Architectural
language: en
tags:
 - Decoupling
---

## Intent
Apply a "Separation of Concerns" principle in a way that allows
developers to build and test user interfaces.

## Class diagram
![alt text](./etc/model-view-presenter_1.png "Model-View-Presenter")

## Applicability
Use the Model-View-Presenter in any of the following
situations

* When you want to improve the "Separation of Concerns" principle in presentation logic
* When a user interface development and testing is necessary.

## Real world examples

* [MVP4J](https://github.com/amineoualialami/mvp4j)
Work towards #56: Splitting up the README I did the job and splitted up the readme, hopefully everything was splitted correctly... 2015-08-13 23:54:40 +02:00			`---`
			`layout: pattern`
			`title: Model-View-Presenter`
			`folder: model-view-presenter`
Work towards #56: Add permalink to every pattern This makes cleaner URLs thanks to jekyll 2015-08-15 18:03:05 +02:00			`permalink: /patterns/model-view-presenter/`
https://github.com/iluwatar/java-design-patterns-web/issues/8 Update pattern categories and tags 2019-12-13 21:09:28 +02:00			`categories: Architectural`
fix: Fixed pages showing up in wrong language (#1752) * Fix languages * Missed change for version number * Add language field for presentation * Revert change in README for double buffer Co-authored-by: Jackie Nim <=> 2021-05-19 10:49:05 -06:00			`language: en`
Categorize and tag all patterns #213 2015-12-28 15:52:44 +02:00			`tags:`
https://github.com/iluwatar/java-design-patterns-web/issues/8 Update pattern categories and tags 2019-12-13 21:09:28 +02:00			`- Decoupling`
Work towards #56: Splitting up the README I did the job and splitted up the readme, hopefully everything was splitted correctly... 2015-08-13 23:54:40 +02:00			`---`

Use headings instead of bold text in index.md #238 2016-01-03 21:14:30 +01:00			`## Intent`
			`Apply a "Separation of Concerns" principle in a way that allows`
Work towards #56: Splitting up the README I did the job and splitted up the readme, hopefully everything was splitted correctly... 2015-08-13 23:54:40 +02:00			`developers to build and test user interfaces.`

#1113 Link uml-reverse-mapper created class diagrams to readme, where needed 2019-12-07 20:01:13 +02:00			`## Class diagram`
Work towards #56: Splitting up the README I did the job and splitted up the readme, hopefully everything was splitted correctly... 2015-08-13 23:54:40 +02:00			`![alt text](./etc/model-view-presenter_1.png "Model-View-Presenter")`

Use headings instead of bold text in index.md #238 2016-01-03 21:14:30 +01:00			`## Applicability`
			`Use the Model-View-Presenter in any of the following`
Work towards #56: Splitting up the README I did the job and splitted up the readme, hopefully everything was splitted correctly... 2015-08-13 23:54:40 +02:00			`situations`
Jekyll does not like enumerations w/o blank lines 2015-09-03 16:22:26 +02:00
https://github.com/iluwatar/java-design-patterns-web/issues/8 Update pattern categories and tags 2019-12-13 21:09:28 +02:00			`* When you want to improve the "Separation of Concerns" principle in presentation logic`
			`* When a user interface development and testing is necessary.`
Work on #226, moved POSA reference and some J2EE design pattern references 2015-09-24 12:23:02 +05:30
Use headings instead of bold text in index.md #238 2016-01-03 21:14:30 +01:00			`## Real world examples`
Work on #226, moved POSA reference and some J2EE design pattern references 2015-09-24 12:23:02 +05:30
			`* [MVP4J](https://github.com/amineoualialami/mvp4j)`