Compare commits
1 Commits
all-contri
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caching-pa
| Author | SHA1 | Date | |
|---|---|---|---|
| a8355988b2 |
@ -1132,8 +1132,7 @@
|
||||
"profile": "http://subho.xyz",
|
||||
"contributions": [
|
||||
"code",
|
||||
"review",
|
||||
"maintenance"
|
||||
"review"
|
||||
]
|
||||
},
|
||||
{
|
||||
@ -1451,51 +1450,6 @@
|
||||
"review",
|
||||
"code"
|
||||
]
|
||||
},
|
||||
{
|
||||
"login": "eas5",
|
||||
"name": "Elvys Soares",
|
||||
"avatar_url": "https://avatars.githubusercontent.com/u/50836521?v=4",
|
||||
"profile": "https://github.com/eas5",
|
||||
"contributions": [
|
||||
"code"
|
||||
]
|
||||
},
|
||||
{
|
||||
"login": "zWeBrain",
|
||||
"name": "zWeBrain",
|
||||
"avatar_url": "https://avatars.githubusercontent.com/u/46642512?v=4",
|
||||
"profile": "https://github.com/zWeBrain",
|
||||
"contributions": [
|
||||
"code"
|
||||
]
|
||||
},
|
||||
{
|
||||
"login": "Al-assad",
|
||||
"name": "余林颖",
|
||||
"avatar_url": "https://avatars.githubusercontent.com/u/22493821?v=4",
|
||||
"profile": "https://al-assad.github.io/notion/",
|
||||
"contributions": [
|
||||
"translation"
|
||||
]
|
||||
},
|
||||
{
|
||||
"login": "STudio26",
|
||||
"name": "Alain",
|
||||
"avatar_url": "https://avatars.githubusercontent.com/u/6988911?v=4",
|
||||
"profile": "https://github.com/STudio26",
|
||||
"contributions": [
|
||||
"translation"
|
||||
]
|
||||
},
|
||||
{
|
||||
"login": "DEV-VRUPER",
|
||||
"name": "VR",
|
||||
"avatar_url": "https://avatars.githubusercontent.com/u/30525467?v=4",
|
||||
"profile": "https://github.com/DEV-VRUPER",
|
||||
"contributions": [
|
||||
"doc"
|
||||
]
|
||||
}
|
||||
],
|
||||
"contributorsPerLine": 4,
|
||||
|
||||
9
.github/workflows/maven-ci.yml
vendored
9
.github/workflows/maven-ci.yml
vendored
@ -40,26 +40,25 @@ jobs:
|
||||
steps:
|
||||
|
||||
- name: Checkout Code
|
||||
uses: actions/checkout@v2
|
||||
uses: actions/checkout@master
|
||||
with:
|
||||
# Disabling shallow clone for improving relevancy of SonarQube reporting
|
||||
fetch-depth: 0
|
||||
|
||||
- name: Set up JDK 11
|
||||
uses: actions/setup-java@v2
|
||||
uses: actions/setup-java@master
|
||||
with:
|
||||
java-version: 11
|
||||
distribution: 'adopt'
|
||||
|
||||
- name: Cache SonarCloud packages
|
||||
uses: actions/cache@v2
|
||||
uses: actions/cache@master
|
||||
with:
|
||||
path: ~/.sonar/cache
|
||||
key: ${{ runner.os }}-sonar
|
||||
restore-keys: ${{ runner.os }}-sonar
|
||||
|
||||
- name: Cache Maven dependencies
|
||||
uses: actions/cache@v2
|
||||
uses: actions/cache@master
|
||||
with:
|
||||
path: ~/.m2/repository
|
||||
key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
|
||||
|
||||
7
.github/workflows/maven-pr-builder.yml
vendored
7
.github/workflows/maven-pr-builder.yml
vendored
@ -38,16 +38,15 @@ jobs:
|
||||
|
||||
steps:
|
||||
- name: Checkout Code
|
||||
uses: actions/checkout@v2
|
||||
uses: actions/checkout@master
|
||||
|
||||
- name: Set up JDK 11
|
||||
uses: actions/setup-java@v2
|
||||
uses: actions/setup-java@master
|
||||
with:
|
||||
java-version: 11
|
||||
distribution: 'adopt'
|
||||
|
||||
- name: Cache Maven Dependecies
|
||||
uses: actions/cache@v2
|
||||
uses: actions/cache@master
|
||||
with:
|
||||
path: ~/.m2/repository
|
||||
key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
|
||||
|
||||
11
README.md
11
README.md
@ -10,7 +10,7 @@
|
||||
[](https://sonarcloud.io/dashboard?id=iluwatar_java-design-patterns)
|
||||
[](https://gitter.im/iluwatar/java-design-patterns?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
|
||||
<!-- ALL-CONTRIBUTORS-BADGE:START - Do not remove or modify this section -->
|
||||
[](#contributors-)
|
||||
[](#contributors-)
|
||||
<!-- ALL-CONTRIBUTORS-BADGE:END -->
|
||||
|
||||
<br/>
|
||||
@ -259,7 +259,7 @@ This project is licensed under the terms of the MIT license.
|
||||
<td align="center"><a href="https://www.linkedin.com/in/ashish-trivedi-218379135/"><img src="https://avatars3.githubusercontent.com/u/23194128?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Ashish Trivedi</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=ashishtrivedi16" title="Code">💻</a></td>
|
||||
<td align="center"><a href="https://rayyounghong.com"><img src="https://avatars1.githubusercontent.com/u/41055099?v=4?s=100" width="100px;" alt=""/><br /><sub><b>洪月阳</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=RayYH" title="Code">💻</a></td>
|
||||
<td align="center"><a href="https://xdvrx1.github.io/"><img src="https://avatars0.githubusercontent.com/u/47092464?v=4?s=100" width="100px;" alt=""/><br /><sub><b>xdvrx1</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/pulls?q=is%3Apr+reviewed-by%3Axdvrx1" title="Reviewed Pull Requests">👀</a> <a href="#ideas-xdvrx1" title="Ideas, Planning, & Feedback">🤔</a></td>
|
||||
<td align="center"><a href="http://subho.xyz"><img src="https://avatars0.githubusercontent.com/u/13291222?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Subhrodip Mohanta</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=ohbus" title="Code">💻</a> <a href="https://github.com/iluwatar/java-design-patterns/pulls?q=is%3Apr+reviewed-by%3Aohbus" title="Reviewed Pull Requests">👀</a> <a href="#maintenance-ohbus" title="Maintenance">🚧</a></td>
|
||||
<td align="center"><a href="http://subho.xyz"><img src="https://avatars0.githubusercontent.com/u/13291222?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Subhrodip Mohanta</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=ohbus" title="Code">💻</a> <a href="https://github.com/iluwatar/java-design-patterns/pulls?q=is%3Apr+reviewed-by%3Aohbus" title="Reviewed Pull Requests">👀</a></td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td align="center"><a href="https://github.com/nahteb"><img src="https://avatars3.githubusercontent.com/u/13121570?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Bethan Palmer</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=nahteb" title="Code">💻</a></td>
|
||||
@ -313,13 +313,6 @@ This project is licensed under the terms of the MIT license.
|
||||
<td align="center"><a href="https://github.com/noamgrinch"><img src="https://avatars.githubusercontent.com/u/31648669?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Noam Greenshtain</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=noamgrinch" title="Code">💻</a></td>
|
||||
<td align="center"><a href="https://xuyonghong.cn/"><img src="https://avatars.githubusercontent.com/u/14086462?v=4?s=100" width="100px;" alt=""/><br /><sub><b>yonghong Xu</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=qfxl" title="Documentation">📖</a></td>
|
||||
<td align="center"><a href="https://www.linkedin.com/in/jinisha-vora"><img src="https://avatars.githubusercontent.com/u/40777762?v=4?s=100" width="100px;" alt=""/><br /><sub><b>jinishavora</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/pulls?q=is%3Apr+reviewed-by%3Ajinishavora" title="Reviewed Pull Requests">👀</a> <a href="https://github.com/iluwatar/java-design-patterns/commits?author=jinishavora" title="Code">💻</a></td>
|
||||
<td align="center"><a href="https://github.com/eas5"><img src="https://avatars.githubusercontent.com/u/50836521?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Elvys Soares</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=eas5" title="Code">💻</a></td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td align="center"><a href="https://github.com/zWeBrain"><img src="https://avatars.githubusercontent.com/u/46642512?v=4?s=100" width="100px;" alt=""/><br /><sub><b>zWeBrain</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=zWeBrain" title="Code">💻</a></td>
|
||||
<td align="center"><a href="https://al-assad.github.io/notion/"><img src="https://avatars.githubusercontent.com/u/22493821?v=4?s=100" width="100px;" alt=""/><br /><sub><b>余林颖</b></sub></a><br /><a href="#translation-Al-assad" title="Translation">🌍</a></td>
|
||||
<td align="center"><a href="https://github.com/STudio26"><img src="https://avatars.githubusercontent.com/u/6988911?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Alain</b></sub></a><br /><a href="#translation-STudio26" title="Translation">🌍</a></td>
|
||||
<td align="center"><a href="https://github.com/DEV-VRUPER"><img src="https://avatars.githubusercontent.com/u/30525467?v=4?s=100" width="100px;" alt=""/><br /><sub><b>VR</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=DEV-VRUPER" title="Documentation">📖</a></td>
|
||||
</tr>
|
||||
</table>
|
||||
|
||||
|
||||
@ -30,7 +30,7 @@
|
||||
<parent>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>abstract-document</artifactId>
|
||||
<dependencies>
|
||||
|
||||
@ -31,7 +31,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>abstract-factory</artifactId>
|
||||
<dependencies>
|
||||
|
||||
@ -31,7 +31,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>active-object</artifactId>
|
||||
<dependencies>
|
||||
|
||||
@ -30,7 +30,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
|
||||
<artifactId>acyclic-visitor</artifactId>
|
||||
|
||||
@ -31,7 +31,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>adapter</artifactId>
|
||||
<dependencies>
|
||||
|
||||
@ -29,7 +29,7 @@
|
||||
<parent>
|
||||
<artifactId>aggregator-microservices</artifactId>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<modelVersion>4.0.0</modelVersion>
|
||||
<artifactId>aggregator-service</artifactId>
|
||||
|
||||
@ -29,7 +29,7 @@
|
||||
<parent>
|
||||
<artifactId>aggregator-microservices</artifactId>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<modelVersion>4.0.0</modelVersion>
|
||||
|
||||
|
||||
@ -29,7 +29,7 @@
|
||||
<parent>
|
||||
<artifactId>aggregator-microservices</artifactId>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<modelVersion>4.0.0</modelVersion>
|
||||
<artifactId>inventory-microservice</artifactId>
|
||||
|
||||
@ -29,7 +29,7 @@
|
||||
<parent>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<modelVersion>4.0.0</modelVersion>
|
||||
<artifactId>aggregator-microservices</artifactId>
|
||||
|
||||
@ -29,7 +29,7 @@
|
||||
<parent>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<modelVersion>4.0.0</modelVersion>
|
||||
<artifactId>ambassador</artifactId>
|
||||
|
||||
@ -29,7 +29,7 @@
|
||||
<parent>
|
||||
<artifactId>api-gateway</artifactId>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<modelVersion>4.0.0</modelVersion>
|
||||
<artifactId>api-gateway-service</artifactId>
|
||||
|
||||
@ -29,7 +29,7 @@
|
||||
<parent>
|
||||
<artifactId>api-gateway</artifactId>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<modelVersion>4.0.0</modelVersion>
|
||||
<artifactId>image-microservice</artifactId>
|
||||
|
||||
@ -29,7 +29,7 @@
|
||||
<parent>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<modelVersion>4.0.0</modelVersion>
|
||||
<artifactId>api-gateway</artifactId>
|
||||
|
||||
@ -29,7 +29,7 @@
|
||||
<parent>
|
||||
<artifactId>api-gateway</artifactId>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
|
||||
<modelVersion>4.0.0</modelVersion>
|
||||
|
||||
@ -29,7 +29,7 @@
|
||||
<parent>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<modelVersion>4.0.0</modelVersion>
|
||||
|
||||
|
||||
@ -31,7 +31,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>async-method-invocation</artifactId>
|
||||
<dependencies>
|
||||
|
||||
@ -29,7 +29,7 @@
|
||||
<parent>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<modelVersion>4.0.0</modelVersion>
|
||||
|
||||
|
||||
@ -31,7 +31,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>bridge</artifactId>
|
||||
<dependencies>
|
||||
|
||||
@ -31,7 +31,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>builder</artifactId>
|
||||
<dependencies>
|
||||
|
||||
@ -31,7 +31,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>business-delegate</artifactId>
|
||||
<dependencies>
|
||||
|
||||
@ -29,7 +29,7 @@
|
||||
<parent>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<modelVersion>4.0.0</modelVersion>
|
||||
|
||||
|
||||
@ -29,7 +29,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>caching</artifactId>
|
||||
<dependencies>
|
||||
|
||||
@ -29,7 +29,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>callback</artifactId>
|
||||
<dependencies>
|
||||
|
||||
@ -29,7 +29,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>chain</artifactId>
|
||||
<dependencies>
|
||||
|
||||
@ -27,7 +27,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>circuit-breaker</artifactId>
|
||||
<dependencies>
|
||||
|
||||
@ -27,7 +27,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>collection-pipeline</artifactId>
|
||||
<dependencies>
|
||||
|
||||
@ -29,7 +29,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
|
||||
<artifactId>combinator</artifactId>
|
||||
|
||||
@ -29,7 +29,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>command</artifactId>
|
||||
<dependencies>
|
||||
|
||||
@ -27,7 +27,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>commander</artifactId>
|
||||
<dependencies>
|
||||
|
||||
@ -1,122 +0,0 @@
|
||||
---
|
||||
layout: pattern
|
||||
title: Composite Entity
|
||||
folder: composite-entity
|
||||
permalink: /patterns/composite-entity/
|
||||
categories: Structural
|
||||
tags:
|
||||
- Enterprise Integration Pattern
|
||||
---
|
||||
|
||||
## Intent
|
||||
|
||||
It is used to model, represent, and manage a set of persistent objects that are interrelated, rather than representing them as individual fine-grained entities.
|
||||
|
||||
## Explanation
|
||||
|
||||
Real world example
|
||||
|
||||
> For a console, there may be many interfaces that need to be managed and controlled. Using the composite entity pattern, dependent objects such as messages and signals can be combined together and controlled using a single object.
|
||||
|
||||
In plain words
|
||||
|
||||
> Composite entity pattern allows a set of related objects to be represented and managed by a unified object.
|
||||
|
||||
**Programmatic Example**
|
||||
|
||||
We need a generic solution for the problem. To achieve this, let's introduce a generic
|
||||
Composite Entity Pattern.
|
||||
|
||||
```java
|
||||
public abstract class DependentObject<T> {
|
||||
|
||||
T data;
|
||||
|
||||
public void setData(T message) {
|
||||
this.data = message;
|
||||
}
|
||||
|
||||
public T getData() {
|
||||
return data;
|
||||
}
|
||||
}
|
||||
|
||||
public abstract class CoarseGrainedObject<T> {
|
||||
|
||||
DependentObject<T>[] dependentObjects;
|
||||
|
||||
public void setData(T... data) {
|
||||
IntStream.range(0, data.length).forEach(i -> dependentObjects[i].setData(data[i]));
|
||||
}
|
||||
|
||||
public T[] getData() {
|
||||
return (T[]) Arrays.stream(dependentObjects).map(DependentObject::getData).toArray();
|
||||
}
|
||||
}
|
||||
|
||||
```
|
||||
|
||||
The specialized composite entity `console` inherit from this base class as follows.
|
||||
|
||||
```java
|
||||
public class MessageDependentObject extends DependentObject<String> {
|
||||
|
||||
}
|
||||
|
||||
public class SignalDependentObject extends DependentObject<String> {
|
||||
|
||||
}
|
||||
|
||||
public class ConsoleCoarseGrainedObject extends CoarseGrainedObject<String> {
|
||||
|
||||
@Override
|
||||
public String[] getData() {
|
||||
super.getData();
|
||||
return new String[]{
|
||||
dependentObjects[0].getData(), dependentObjects[1].getData()
|
||||
};
|
||||
}
|
||||
|
||||
public void init() {
|
||||
dependentObjects = new DependentObject[]{
|
||||
new MessageDependentObject(), new SignalDependentObject()};
|
||||
}
|
||||
}
|
||||
|
||||
public class CompositeEntity {
|
||||
|
||||
private final ConsoleCoarseGrainedObject console = new ConsoleCoarseGrainedObject();
|
||||
|
||||
public void setData(String message, String signal) {
|
||||
console.setData(message, signal);
|
||||
}
|
||||
|
||||
public String[] getData() {
|
||||
return console.getData();
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
Now managing the assignment of message and signal objects with the composite entity `console`.
|
||||
|
||||
```java
|
||||
var console = new CompositeEntity();
|
||||
console.init();
|
||||
console.setData("No Danger", "Green Light");
|
||||
Arrays.stream(console.getData()).forEach(LOGGER::info);
|
||||
console.setData("Danger", "Red Light");
|
||||
Arrays.stream(console.getData()).forEach(LOGGER::info);
|
||||
```
|
||||
|
||||
## Class diagram
|
||||
|
||||
|
||||
|
||||
## Applicability
|
||||
|
||||
Use the Composite Entity Pattern in the following situation:
|
||||
|
||||
* You want to manage multiple dependency objects through one object to adjust the degree of granularity between objects. At the same time, the lifetime of dependency objects depends on a coarse-grained object.
|
||||
## Credits
|
||||
|
||||
* [Composite Entity Pattern in wikipedia](https://en.wikipedia.org/wiki/Composite_entity_pattern)
|
||||
@ -1,45 +0,0 @@
|
||||
@startuml
|
||||
package com.iluwatar.compositeentity {
|
||||
class App {
|
||||
+ App(message: String, signal: String)
|
||||
+ main(args : String[]) {static}
|
||||
}
|
||||
class CompositeEntity{
|
||||
- console : ConsoleCoarseGrainedObject
|
||||
+ CompositeEntity()
|
||||
+ setData(message: String, signal: String)
|
||||
+ getData()
|
||||
+ init()
|
||||
}
|
||||
abstract CoarseGrainedObject{
|
||||
- dependentObjects : DependentObject[]
|
||||
+ CoarseGrainedObject()
|
||||
+ setData(data: T[])
|
||||
+ getData()
|
||||
}
|
||||
abstract DependentObject{
|
||||
- data : T
|
||||
+ DependentObject()
|
||||
+ setData(data: T)
|
||||
+ getData()
|
||||
}
|
||||
class ConsoleCoarseGrainedObject{
|
||||
+ ConsoleCoarseGrainedObject()
|
||||
+ getData()
|
||||
+ init()
|
||||
}
|
||||
class MessageDependentObject{
|
||||
+ MessageDependentObject()
|
||||
}
|
||||
class SignalDependentObject{
|
||||
+ SignalDependentObject()
|
||||
}
|
||||
|
||||
MessageDependentObject --|> DependentObject
|
||||
SignalDependentObject --|> DependentObject
|
||||
ConsoleCoarseGrainedObject --|> CoarseGrainedObject
|
||||
CompositeEntity -right-> ConsoleCoarseGrainedObject
|
||||
CoarseGrainedObject "1" o--> "0.." DependentObject
|
||||
App .right.> CompositeEntity
|
||||
}
|
||||
@enduml
|
||||
Binary file not shown.
|
Before Width: | Height: | Size: 90 KiB |
@ -1,39 +0,0 @@
|
||||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<project xmlns="http://maven.apache.org/POM/4.0.0"
|
||||
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
|
||||
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
|
||||
<parent>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<modelVersion>4.0.0</modelVersion>
|
||||
<artifactId>composite-entity</artifactId>
|
||||
<dependencies>
|
||||
<dependency>
|
||||
<groupId>org.junit.jupiter</groupId>
|
||||
<artifactId>junit-jupiter-engine</artifactId>
|
||||
<scope>test</scope>
|
||||
</dependency>
|
||||
</dependencies>
|
||||
<build>
|
||||
<plugins>
|
||||
<plugin>
|
||||
<groupId>org.apache.maven.plugins</groupId>
|
||||
<artifactId>maven-assembly-plugin</artifactId>
|
||||
<executions>
|
||||
<execution>
|
||||
<configuration>
|
||||
<archive>
|
||||
<manifest>
|
||||
<mainClass>com.iluwatar.composite-entity.com.iluwatar.compositeentity.App</mainClass>
|
||||
</manifest>
|
||||
</archive>
|
||||
</configuration>
|
||||
</execution>
|
||||
</executions>
|
||||
</plugin>
|
||||
</plugins>
|
||||
</build>
|
||||
|
||||
</project>
|
||||
@ -1,38 +0,0 @@
|
||||
package com.iluwatar.compositeentity;
|
||||
|
||||
import java.util.Arrays;
|
||||
import lombok.extern.slf4j.Slf4j;
|
||||
|
||||
|
||||
/**
|
||||
* Composite entity is a Java EE Software design pattern and it is used to model, represent, and
|
||||
* manage a set of interrelated persistent objects rather than representing them as individual
|
||||
* fine-grained entity beans, and also a composite entity bean represents a graph of objects.
|
||||
*/
|
||||
@Slf4j
|
||||
public class App {
|
||||
|
||||
|
||||
/**
|
||||
* An instance that a console manages two related objects.
|
||||
*/
|
||||
public App(String message, String signal) {
|
||||
var console = new CompositeEntity();
|
||||
console.init();
|
||||
console.setData(message, signal);
|
||||
Arrays.stream(console.getData()).forEach(LOGGER::info);
|
||||
console.setData("Danger", "Red Light");
|
||||
Arrays.stream(console.getData()).forEach(LOGGER::info);
|
||||
}
|
||||
|
||||
/**
|
||||
* Program entry point.
|
||||
*
|
||||
* @param args command line args
|
||||
*/
|
||||
public static void main(String[] args) {
|
||||
|
||||
new App("No Danger", "Green Light");
|
||||
|
||||
}
|
||||
}
|
||||
@ -1,23 +0,0 @@
|
||||
package com.iluwatar.compositeentity;
|
||||
|
||||
import java.util.Arrays;
|
||||
import java.util.stream.IntStream;
|
||||
|
||||
/**
|
||||
* A coarse-grained object is an object with its own life cycle manages its own relationships to
|
||||
* other objects. It can be an object contained in the composite entity, or, composite entity itself
|
||||
* can be the coarse-grained object which holds dependent objects.
|
||||
*/
|
||||
|
||||
public abstract class CoarseGrainedObject<T> {
|
||||
|
||||
DependentObject<T>[] dependentObjects;
|
||||
|
||||
public void setData(T... data) {
|
||||
IntStream.range(0, data.length).forEach(i -> dependentObjects[i].setData(data[i]));
|
||||
}
|
||||
|
||||
public T[] getData() {
|
||||
return (T[]) Arrays.stream(dependentObjects).map(DependentObject::getData).toArray();
|
||||
}
|
||||
}
|
||||
@ -1,23 +0,0 @@
|
||||
package com.iluwatar.compositeentity;
|
||||
|
||||
/**
|
||||
* Composite entity is the coarse-grained entity bean which may be the coarse-grained object, or may
|
||||
* contain a reference to the coarse-grained object.
|
||||
*/
|
||||
|
||||
public class CompositeEntity {
|
||||
|
||||
private final ConsoleCoarseGrainedObject console = new ConsoleCoarseGrainedObject();
|
||||
|
||||
public void setData(String message, String signal) {
|
||||
console.setData(message, signal);
|
||||
}
|
||||
|
||||
public String[] getData() {
|
||||
return console.getData();
|
||||
}
|
||||
|
||||
public void init() {
|
||||
console.init();
|
||||
}
|
||||
}
|
||||
@ -1,20 +0,0 @@
|
||||
package com.iluwatar.compositeentity;
|
||||
|
||||
/**
|
||||
* A specific CoarseGrainedObject to implement a console.
|
||||
*/
|
||||
|
||||
public class ConsoleCoarseGrainedObject extends CoarseGrainedObject<String> {
|
||||
|
||||
@Override
|
||||
public String[] getData() {
|
||||
return new String[]{
|
||||
dependentObjects[0].getData(), dependentObjects[1].getData()
|
||||
};
|
||||
}
|
||||
|
||||
public void init() {
|
||||
dependentObjects = new DependentObject[]{
|
||||
new MessageDependentObject(), new SignalDependentObject()};
|
||||
}
|
||||
}
|
||||
@ -1,20 +0,0 @@
|
||||
package com.iluwatar.compositeentity;
|
||||
|
||||
/**
|
||||
* It is an object, which can contain other dependent objects (there may be a tree of objects within
|
||||
* the composite entity), that depends on the coarse-grained object and has its life cycle managed
|
||||
* by the coarse-grained object.
|
||||
*/
|
||||
|
||||
public abstract class DependentObject<T> {
|
||||
|
||||
T data;
|
||||
|
||||
public void setData(T message) {
|
||||
this.data = message;
|
||||
}
|
||||
|
||||
public T getData() {
|
||||
return data;
|
||||
}
|
||||
}
|
||||
@ -1,9 +0,0 @@
|
||||
package com.iluwatar.compositeentity;
|
||||
|
||||
/**
|
||||
* The first DependentObject to show message.
|
||||
*/
|
||||
|
||||
public class MessageDependentObject extends DependentObject<String> {
|
||||
|
||||
}
|
||||
@ -1,9 +0,0 @@
|
||||
package com.iluwatar.compositeentity;
|
||||
|
||||
/**
|
||||
* The second DependentObject to show message.
|
||||
*/
|
||||
|
||||
public class SignalDependentObject extends DependentObject<String> {
|
||||
|
||||
}
|
||||
@ -1,25 +0,0 @@
|
||||
package com.iluwatar.compositeentity;
|
||||
|
||||
import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
|
||||
|
||||
import org.junit.jupiter.api.Test;
|
||||
|
||||
/**
|
||||
* com.iluwatar.compositeentity.App running test
|
||||
*/
|
||||
class AppTest {
|
||||
|
||||
/**
|
||||
* Issue: Add at least one assertion to this test case.
|
||||
* <p>
|
||||
* Solution: Inserted assertion to check whether the execution of the main method in {@link
|
||||
* App#main(String[])} throws an exception.
|
||||
*/
|
||||
|
||||
@Test
|
||||
void shouldExecuteApplicationWithoutException() {
|
||||
|
||||
assertDoesNotThrow(() -> App.main(new String[]{}));
|
||||
|
||||
}
|
||||
}
|
||||
@ -1,32 +0,0 @@
|
||||
package com.iluwatar.compositeentity;
|
||||
|
||||
import org.junit.jupiter.api.Test;
|
||||
|
||||
import static org.junit.jupiter.api.Assertions.*;
|
||||
|
||||
class PersistenceTest {
|
||||
|
||||
final static ConsoleCoarseGrainedObject console = new ConsoleCoarseGrainedObject();
|
||||
|
||||
@Test
|
||||
void dependentObjectChangedForPersistenceTest() {
|
||||
MessageDependentObject dependentObject = new MessageDependentObject();
|
||||
console.init();
|
||||
console.dependentObjects[0] = dependentObject;
|
||||
String message = "Danger";
|
||||
assertNull(console.dependentObjects[0].getData());
|
||||
dependentObject.setData(message);
|
||||
assertEquals(message, console.dependentObjects[0].getData());
|
||||
}
|
||||
|
||||
@Test
|
||||
void coarseGrainedObjectChangedForPersistenceTest() {
|
||||
MessageDependentObject dependentObject = new MessageDependentObject();
|
||||
console.init();
|
||||
console.dependentObjects[0] = dependentObject;
|
||||
String message = "Danger";
|
||||
assertNull(console.dependentObjects[0].getData());
|
||||
console.setData(message);
|
||||
assertEquals(message, dependentObject.getData());
|
||||
}
|
||||
}
|
||||
@ -29,7 +29,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>composite</artifactId>
|
||||
<dependencies>
|
||||
|
||||
@ -29,7 +29,7 @@
|
||||
<parent>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>converter</artifactId>
|
||||
<modelVersion>4.0.0</modelVersion>
|
||||
|
||||
@ -30,7 +30,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>cqrs</artifactId>
|
||||
<dependencies>
|
||||
|
||||
@ -30,7 +30,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>dao</artifactId>
|
||||
|
||||
|
||||
@ -30,7 +30,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>data-bus</artifactId>
|
||||
<dependencies>
|
||||
|
||||
@ -30,7 +30,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>data-locality</artifactId>
|
||||
|
||||
|
||||
@ -28,7 +28,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>data-mapper</artifactId>
|
||||
<dependencies>
|
||||
|
||||
@ -28,7 +28,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>data-transfer-object</artifactId>
|
||||
<dependencies>
|
||||
|
||||
@ -29,7 +29,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>decorator</artifactId>
|
||||
<dependencies>
|
||||
|
||||
@ -29,7 +29,7 @@
|
||||
<parent>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<modelVersion>4.0.0</modelVersion>
|
||||
|
||||
|
||||
@ -29,7 +29,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>dependency-injection</artifactId>
|
||||
<dependencies>
|
||||
|
||||
@ -29,10 +29,10 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>dirty-flag</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
<name>dirty-flag</name>
|
||||
<url>http://maven.apache.org</url>
|
||||
<properties>
|
||||
|
||||
@ -25,4 +25,4 @@ This pattern is one of those ones where you’ll know when you need it. If you h
|
||||
|
||||
## Credits
|
||||
|
||||
* [Game Programming Patterns - Double Buffer](http://gameprogrammingpatterns.com/double-buffer.html)
|
||||
* [Game Programming Patterns - Double Buffer]([http://gameprogrammingpatterns.com/double-buffer.html](http://gameprogrammingpatterns.com/double-buffer.html))
|
||||
|
||||
@ -29,7 +29,7 @@
|
||||
<parent>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<modelVersion>4.0.0</modelVersion>
|
||||
|
||||
|
||||
@ -27,7 +27,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>double-checked-locking</artifactId>
|
||||
<dependencies>
|
||||
|
||||
@ -29,7 +29,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>double-dispatch</artifactId>
|
||||
<dependencies>
|
||||
|
||||
@ -31,7 +31,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
|
||||
<dependencies>
|
||||
|
||||
@ -30,7 +30,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>eip-message-channel</artifactId>
|
||||
<dependencies>
|
||||
|
||||
@ -28,7 +28,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>eip-publish-subscribe</artifactId>
|
||||
<dependencies>
|
||||
|
||||
@ -31,7 +31,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
|
||||
<dependencies>
|
||||
|
||||
@ -31,7 +31,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
|
||||
<dependencies>
|
||||
|
||||
@ -28,7 +28,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>event-aggregator</artifactId>
|
||||
<dependencies>
|
||||
|
||||
@ -29,7 +29,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>event-asynchronous</artifactId>
|
||||
<dependencies>
|
||||
|
||||
@ -31,7 +31,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
|
||||
<artifactId>event-driven-architecture</artifactId>
|
||||
|
||||
@ -30,7 +30,7 @@
|
||||
<parent>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>event-queue</artifactId>
|
||||
<dependencies>
|
||||
|
||||
@ -30,7 +30,7 @@
|
||||
<parent>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>event-sourcing</artifactId>
|
||||
<dependencies>
|
||||
|
||||
@ -29,7 +29,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>execute-around</artifactId>
|
||||
<dependencies>
|
||||
|
||||
@ -29,7 +29,7 @@
|
||||
<parent>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<modelVersion>4.0.0</modelVersion>
|
||||
|
||||
|
||||
@ -29,7 +29,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>facade</artifactId>
|
||||
<dependencies>
|
||||
|
||||
@ -30,7 +30,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>factory-kit</artifactId>
|
||||
<dependencies>
|
||||
|
||||
@ -29,7 +29,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>factory-method</artifactId>
|
||||
<dependencies>
|
||||
|
||||
@ -29,7 +29,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>factory</artifactId>
|
||||
<dependencies>
|
||||
|
||||
@ -29,7 +29,7 @@
|
||||
<parent>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<modelVersion>4.0.0</modelVersion>
|
||||
|
||||
|
||||
@ -29,7 +29,7 @@
|
||||
<parent>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<modelVersion>4.0.0</modelVersion>
|
||||
|
||||
|
||||
@ -29,7 +29,7 @@
|
||||
<parent>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<modelVersion>4.0.0</modelVersion>
|
||||
|
||||
|
||||
@ -29,7 +29,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>flux</artifactId>
|
||||
<dependencies>
|
||||
|
||||
@ -29,7 +29,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>flyweight</artifactId>
|
||||
<dependencies>
|
||||
|
||||
62
fr/README.md
62
fr/README.md
@ -1,12 +1,12 @@
|
||||
<!-- Cette ligne doit restée vide pour des raisons de formatage
|
||||
afin qu’on puisse avoir un affichage agréable comme sur un
|
||||
afin qu'on puisse avoir un affichage agréable comme sur un
|
||||
site web par exemple -->
|
||||
|
||||
# Les patrons de conception implémentés en Java
|
||||
|
||||
|
||||
[](https://raw.githubusercontent.com/iluwatar/java-design-patterns/master/LICENSE.md)
|
||||
[](https://sonarcloud.io/dashboard?id=iluwatar_java-design-patterns)
|
||||
[](https://sonarcloud.io/dashboard?id=iluwatar_java-design-patterns)
|
||||
[](https://sonarcloud.io/dashboard?id=iluwatar_java-design-patterns)
|
||||
[](https://gitter.im/iluwatar/java-design-patterns?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
|
||||
<!-- ALL-CONTRIBUTORS-BADGE:START - Do not remove or modify this section -->
|
||||
@ -15,56 +15,46 @@
|
||||
|
||||
# Introduction
|
||||
|
||||
Les patrons de conception (design patterns) sont les meilleures
|
||||
pratiques formalisées qu’un programmeur peut utiliser pour résoudre
|
||||
des problèmes courants lors de la conception d’une application
|
||||
ou d’un système.
|
||||
Le patron de conception est la meilleure formatalisation qu'un programmeur
|
||||
peut utiliser pour résoudre un problème lors d'une conception d'une application/system.
|
||||
|
||||
Les patrons de conception peuvent accélérer le processus de
|
||||
Le patron de conception (design pattern) est là pour accélérer le processus de
|
||||
développement en fournissant des paradigmes éprouvés.
|
||||
|
||||
La réutilisation de patrons de conception aide à se prémunir des problèmes subtils
|
||||
qui causent des problèmes majeurs, et cette pratique augmente la lisibilité
|
||||
du code pour les développeurs et architectes familiers de ces concepts.
|
||||
La réutilisation de patron de conception aide à prévenir des problèmes subtiles mais
|
||||
qui sont à l'origine de problèmes majeures, comme cette pratique augmente la lisibilitée
|
||||
du code par les développeurs/architectes familiers avec l'utilisation de ces concepts.
|
||||
|
||||
# Commencer
|
||||
|
||||
Ce site présente des patrons de conception Java. Les solutions ont été développées
|
||||
par des développeurs et architectes expérimentés de la communauté open source.
|
||||
Les modèles peuvent être parcourus par leurs descriptions de haut niveau ou
|
||||
en regardant leur code source.
|
||||
Les exemples de code source sont bien commentés et peuvent être considérés
|
||||
comme tutoriels de programmation sur la façon d’implémenter un modèle spécifique.
|
||||
Nous utilisons les technologies Java open source les plus populaires et éprouvées.
|
||||
Ce site présente des modèles de conception Java. Les solutions ont été développées par des
|
||||
développeurs et architectes expérimentés de la communauté open source. Les modèles peuvent être parcourus par leurs descriptions de haut niveau ou en regardant leur code source. Les exemples de code source sont bien commentés et peuvent être considérés comme tutoriels de programmation sur la façon d'implémenter un modèle spécifique. Nous utilisons le plus technologies Java open source éprouvées au combat.
|
||||
|
||||
Avant de vous plonger dans le contenu, vous devriez vous familiariser avec divers
|
||||
Avant de plonger dans le matériau, vous devez vous familiariser avec divers
|
||||
[Principes de conception de logiciels](https://java-design-patterns.com/principles/).
|
||||
|
||||
Tous les modèles doivent être aussi simples que possible.
|
||||
Vous devriez commencer par les principes KISS, YAGNI et
|
||||
Faites La Chose La Plus Simple Qui Fonctionne.
|
||||
La complexité et les modèles ne devraient être introduits
|
||||
que lorsqu’ils sont nécessaires pour une extensibilité pratique.
|
||||
Toutes les conceptions doivent être aussi simples que possible. Vous devriez commencer par KISS, YAGNI,
|
||||
et faire la chose la plus simple qui pourrait éventuellement fonctionner principes. Complexité et
|
||||
les modèles ne devraient être introduits que lorsqu'ils sont nécessaires pour
|
||||
extensibilité.
|
||||
|
||||
Une fois que vous êtes familiarisé avec ces concepts, vous pouvez commencer à explorer les
|
||||
[modèles de conception disponibles](https://java-design-patterns.com/patterns/)
|
||||
par n’importe laquelle les approches suivantes :
|
||||
Une fois que vous êtes familiarisé avec ces concepts, vous pouvez commencer à explorer
|
||||
[modèles de conception disponibles](https://java-design-patterns.com/patterns/) par tout
|
||||
des approches suivantes
|
||||
|
||||
- Recherchez un modèle spécifique par son nom.
|
||||
Vous n’en trouvez pas ? Veuillez signaler un nouveau modèle [ici](https://github.com/iluwatar/java-design-patterns/issues).
|
||||
- Utilisation de balises telles que `Performance`, `Gang of Four` ou `Data access`.
|
||||
- Utilisation des catégories de modèles, `Creational`, `Behavioral` et autres.
|
||||
- Recherchez un modèle spécifique par son nom. Vous n'en trouvez pas? Veuillez signaler un nouveau modèle [ici](https://github.com/iluwatar/java-design-patterns/issues).
|
||||
- Utilisation de balises telles que `Performance`, `Gang of Four` ou `Data access`.
|
||||
- Utilisation des catégories de modèles, `Créatif`, `Comportemental` et autres.
|
||||
|
||||
Nous espérons que vous trouverez les solutions orientées objet présentées
|
||||
sur ce site utiles dans vos architectures et que vous aurez autant
|
||||
de plaisir à les apprendre que nous en avons eu à les développer.
|
||||
J'espère que les solutions orientées objet présentées sur ce site vous seront utiles
|
||||
dans vos architectures et ayez autant de plaisir à les apprendre que nous en avons eu à les développer.
|
||||
|
||||
# Comment contribuer
|
||||
|
||||
Si vous souhaitez contribuer au projet, vous trouverez les informations pertinentes dans
|
||||
notre [wiki développeur](https://github.com/iluwatar/java-design-patterns/wiki).
|
||||
Nous vous aiderons répondrons à vos questions dans le [Gitter chatroom](https://gitter.im/iluwatar/java-design-patterns).
|
||||
notre [wiki développeur](https://github.com/iluwatar/java-design-patterns/wiki). Nous aiderons
|
||||
vous et répondez à vos questions dans le [Gitter chatroom](https://gitter.im/iluwatar/java-design-patterns).
|
||||
|
||||
# Licence
|
||||
|
||||
Ce projet est concédé sous les termes de la licence MIT.
|
||||
Ce projet est concédé sous les termes de la licence MIT.
|
||||
|
||||
@ -30,7 +30,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>front-controller</artifactId>
|
||||
<dependencies>
|
||||
|
||||
@ -29,7 +29,7 @@
|
||||
<parent>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<modelVersion>4.0.0</modelVersion>
|
||||
|
||||
|
||||
@ -30,7 +30,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<packaging>jar</packaging>
|
||||
<artifactId>guarded-suspension</artifactId>
|
||||
|
||||
@ -29,7 +29,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>half-sync-half-async</artifactId>
|
||||
<dependencies>
|
||||
|
||||
@ -30,7 +30,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>hexagonal</artifactId>
|
||||
<dependencies>
|
||||
|
||||
@ -29,7 +29,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>intercepting-filter</artifactId>
|
||||
<dependencies>
|
||||
|
||||
@ -29,7 +29,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>interpreter</artifactId>
|
||||
<dependencies>
|
||||
|
||||
@ -29,7 +29,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>iterator</artifactId>
|
||||
<dependencies>
|
||||
|
||||
26
ko/README.md
26
ko/README.md
@ -14,35 +14,35 @@
|
||||
|
||||
# 소개
|
||||
|
||||
디자인 패턴은 개발자가 응용 프로그램이나 시스템을 디자인할 때 일반적인 문제를 해결하는 데 사용할 수 있는 가장 정석적인 방법입니다.
|
||||
디자인 패턴은 프로그래머가 응용 프로그램이나 시스템을 디자인 할 때 일반적인 문제를 해결하는 데 사용할 수있는 가장 공식화 된 방법입니다.
|
||||
|
||||
디자인 패턴은 테스트되고 입증된 개발 패러다임을 제공하여 개발 프로세스 속도를 높일 수 있습니다.
|
||||
디자인 패턴은 테스트되고 입증 된 개발 패러다임을 제공하여 개발 프로세스 속도를 높일 수 있습니다.
|
||||
|
||||
디자인 패턴을 사용하면 주요 문제를 유발하는 미묘한 이슈들을 방지하는 데 도움이 되며 또한 패턴에 익숙한 개발자와 아키텍트의 코드 가독성을 향상시킵니다.
|
||||
디자인 패턴을 재사용하면 주요 문제를 유발하는 미묘한 이슈들을 방지하는데 도움이 되며 또한 패턴에 익숙한 코더와 아키텍트의 코드 가독성도 향상됩니다.
|
||||
|
||||
# 시작하기
|
||||
|
||||
이 사이트는 Java 디자인 패턴을 설명합니다. 이 솔루션은 오픈 소스 커뮤니티의 경험이 많은 개발자와 설계자가 개발했습니다. 패턴은 높은 수준의 설명이나 소스 코드를 통해 찾아볼 수 있습니다. 소스 코드 예제는 잘 설명되어 있으며 특정 패턴을 구현하는 방법을 알려주는 프로그래밍 튜토리얼로 사용할 수 있습니다. 우리는 가장 널리 알려지고 실무에서 입증된 오픈 소스 Java 기술을 사용합니다.
|
||||
이 사이트는 Java 디자인 패턴을 보여줍니다. 이 솔루션은 오픈 소스 커뮤니티의 경험이 많은 프로그래머와 설계자가 개발했습니다. 패턴은 높은 수준의 설명이나 소스 코드를 통해 찾아 볼 수 있습니다. 소스 코드 예제는 잘 설명되어 있으며 특정 패턴을 구현하는 방법을 알려주는 프로그래밍 튜토리얼로 생각할 수 있습니다. 우리는 가장 널리 알려지고 실무에서 입증된 오픈 소스 Java 기술을 사용합니다.
|
||||
|
||||
자료를 살펴보기 전에 다양한 [소프트웨어 설계 원칙](https://java-design-patterns.com/principles/)을 숙지해야 합니다.
|
||||
자료를 살펴보기 전에 다양한 [소프트웨어 설계 원칙](https://java-design-patterns.com/principles/)을 숙지해야합니다.
|
||||
|
||||
모든 디자인 패턴은 가능한 한 심플해야 합니다. 소프트웨어 개발의 KISS, YAGNI 원칙을 지켜야 하며, 문제를 해결할 수 있는 가장 심플한 일을 해야 합니다. 복잡한 디자인 패턴은 실용적이고 확장성을 위해 필요할 때만 도입되어야 합니다.
|
||||
모든 디자인은 가능한 한 단순해야합니다. 당신은 KISS, YAGNI로 시작해야하며, 원칙을 작동 할 수 있는 가장 단순한 일을 해야합니다. 복잡성과 패턴은 실용적인 확장성을 위해 필요할 때만 도입되어야합니다.
|
||||
|
||||
이러한 개념에 익숙해지면 아래와 같은 방법으로 [사용 가능한 디자인 패턴](https://java-design-patterns.com/patterns/) 중 하나를 선택하여 문제를 해결할 수 있습니다.
|
||||
이러한 개념에 익숙해지면 다음 접근 방식 중 하나를 이용하여 [사용 가능한 디자인 패턴](https://java-design-patterns.com/patterns/)으로 드릴다운 할 수 있습니다.
|
||||
|
||||
- 이름으로 특정 패턴을 검색합니다. 찾는 패턴이 없다면 [여기](https://github.com/iluwatar/java-design-patterns/issues)에서 새 패턴을 요청하세요.
|
||||
- `Performance`, `Gang of Four` 또는 `Data access` 등의 태그로 검색하세요.
|
||||
- `Creational`, `Behavioral` 등의 패턴 카테고리로 검색하세요.
|
||||
- 이름으로 특정 패턴을 검색합니다. 찾을 수 없습니까? [여기](https://github.com/iluwatar/java-design-patterns/issues)에서 새 패턴을 보고하십시오.
|
||||
- `Performance`, `Gang of Four` 또는 `Data access` 태그 사용.
|
||||
- 패턴 카테고리, `Creational`, `Behavioral` 및 기타 사용
|
||||
|
||||
이 사이트에서 제공하는 객체 지향 솔루션이 여러분의 아키텍처에 유용하고 사용되고 우리가 개발 한 것만큼 재미있게 배우기를 바랍니다.
|
||||
이 사이트에 제시된 객체 지향 솔루션이 여러분의 아키텍처에서 유용하고 우리가 개발 한 것만큼 재미있게 배우기를 바랍니다.
|
||||
|
||||
# 기여하는 방법
|
||||
|
||||
프로젝트에 기여할 의향이 있다면 [developer wiki](https://github.com/iluwatar/java-design-patterns/wiki)에서 관련 정보를 찾을 수 있습니다. [Gitter chatroom](https://gitter.im/iluwatar/java-design-patterns)에서 귀하를 돕고 질문에 답변해 드리겠습니다.
|
||||
프로젝트에 기여할 의향이 있다면 [developer wiki](https://github.com/iluwatar/java-design-patterns/wiki)에서 관련 정보를 찾을 수 있습니다. [Gitter chatroom](https://gitter.im/iluwatar/java-design-patterns)에서 귀하를 돕고 질문에 답변 해 드리겠습니다.
|
||||
|
||||
# 특허
|
||||
|
||||
이 프로젝트는 MIT 라이센스 조건에 따라 라이센스가 적용됩니다.
|
||||
이 프로젝트는 MIT 라이센스 조건에 따라 라이센스가 부여됩니다.
|
||||
|
||||
# 기여자
|
||||
|
||||
|
||||
@ -1,185 +0,0 @@
|
||||
---
|
||||
layout: pattern
|
||||
title: Strategy
|
||||
folder: strategy
|
||||
permalink: /patterns/strategy/
|
||||
categories: Behavioral
|
||||
tags:
|
||||
- Gang of Four
|
||||
---
|
||||
|
||||
## 동의어
|
||||
|
||||
정책(Policy) 패턴
|
||||
|
||||
## 의도
|
||||
|
||||
알고리즘군을 정의하고 각 알고리즘을 캡슐화하고 상호 변경 가능하게 만듭니다. 전략(Strategy) 패턴을 사용하면 알고리즘이 이를 사용하는 클라이언트와 독립적일 수 있습니다.
|
||||
|
||||
## 설명
|
||||
|
||||
실제 예제
|
||||
|
||||
> 드래곤을 사냥하는 것은 위험한 일입니다. 경험이 쌓이면 쉬워집니다. 베테랑 사냥꾼들은 서로 다른 유형의 드래곤에 대해 서로 다른 전투 전략을 개발했습니다.
|
||||
|
||||
평범한 말로는
|
||||
|
||||
> 전략(Strategy) 패턴을 사용하면 런타임에 가장 적합한 알고리즘을 선택할 수 있습니다.
|
||||
|
||||
Wikipedia는
|
||||
|
||||
> 컴퓨터 프로그래밍에서 전략 패턴(정책 패턴이라고도 함)은 런타임에 알고리즘을 선택할 수 있는 행동 소프트웨어 디자인 패턴입니다.
|
||||
|
||||
**프로그래밍 예**
|
||||
|
||||
먼저 드래곤 사냥 전략 인터페이스와 그 구현을 살펴봅니다.
|
||||
|
||||
```java
|
||||
@FunctionalInterface
|
||||
public interface DragonSlayingStrategy {
|
||||
|
||||
void execute();
|
||||
}
|
||||
|
||||
@Slf4j
|
||||
public class MeleeStrategy implements DragonSlayingStrategy {
|
||||
|
||||
@Override
|
||||
public void execute() {
|
||||
LOGGER.info("With your Excalibur you sever the dragon's head!");
|
||||
}
|
||||
}
|
||||
|
||||
@Slf4j
|
||||
public class ProjectileStrategy implements DragonSlayingStrategy {
|
||||
|
||||
@Override
|
||||
public void execute() {
|
||||
LOGGER.info("You shoot the dragon with the magical crossbow and it falls dead on the ground!");
|
||||
}
|
||||
}
|
||||
|
||||
@Slf4j
|
||||
public class SpellStrategy implements DragonSlayingStrategy {
|
||||
|
||||
@Override
|
||||
public void execute() {
|
||||
LOGGER.info("You cast the spell of disintegration and the dragon vaporizes in a pile of dust!");
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
그리고 여기 상대하는 드래곤에 따라 자신의 전투 전략을 선택할 수 있는 강력한 드래곤 슬레이어가 있습니다.
|
||||
|
||||
```java
|
||||
public class DragonSlayer {
|
||||
|
||||
private DragonSlayingStrategy strategy;
|
||||
|
||||
public DragonSlayer(DragonSlayingStrategy strategy) {
|
||||
this.strategy = strategy;
|
||||
}
|
||||
|
||||
public void changeStrategy(DragonSlayingStrategy strategy) {
|
||||
this.strategy = strategy;
|
||||
}
|
||||
|
||||
public void goToBattle() {
|
||||
strategy.execute();
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
마지막으로 여기 드래곤 슬레이어가 행동합니다.
|
||||
|
||||
```java
|
||||
LOGGER.info("Green dragon spotted ahead!");
|
||||
var dragonSlayer = new DragonSlayer(new MeleeStrategy());
|
||||
dragonSlayer.goToBattle();
|
||||
LOGGER.info("Red dragon emerges.");
|
||||
dragonSlayer.changeStrategy(new ProjectileStrategy());
|
||||
dragonSlayer.goToBattle();
|
||||
LOGGER.info("Black dragon lands before you.");
|
||||
dragonSlayer.changeStrategy(new SpellStrategy());
|
||||
dragonSlayer.goToBattle();
|
||||
```
|
||||
|
||||
프로그램 출력:
|
||||
|
||||
```
|
||||
Green dragon spotted ahead!
|
||||
With your Excalibur you sever the dragon's head!
|
||||
Red dragon emerges.
|
||||
You shoot the dragon with the magical crossbow and it falls dead on the ground!
|
||||
Black dragon lands before you.
|
||||
You cast the spell of disintegration and the dragon vaporizes in a pile of dust!
|
||||
```
|
||||
|
||||
또한 Java 8의 새로운 기능인 Lambda Expressions은 구현을 위한 또 다른 접근 방식을 제공합니다:
|
||||
|
||||
```java
|
||||
public class LambdaStrategy {
|
||||
|
||||
private static final Logger LOGGER = LoggerFactory.getLogger(LambdaStrategy.class);
|
||||
|
||||
public enum Strategy implements DragonSlayingStrategy {
|
||||
MeleeStrategy(() -> LOGGER.info(
|
||||
"With your Excalibur you severe the dragon's head!")),
|
||||
ProjectileStrategy(() -> LOGGER.info(
|
||||
"You shoot the dragon with the magical crossbow and it falls dead on the ground!")),
|
||||
SpellStrategy(() -> LOGGER.info(
|
||||
"You cast the spell of disintegration and the dragon vaporizes in a pile of dust!"));
|
||||
|
||||
private final DragonSlayingStrategy dragonSlayingStrategy;
|
||||
|
||||
Strategy(DragonSlayingStrategy dragonSlayingStrategy) {
|
||||
this.dragonSlayingStrategy = dragonSlayingStrategy;
|
||||
}
|
||||
|
||||
@Override
|
||||
public void execute() {
|
||||
dragonSlayingStrategy.execute();
|
||||
}
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
그리고 여기 드래곤 슬레이어가 행동합니다.
|
||||
|
||||
```java
|
||||
LOGGER.info("Green dragon spotted ahead!");
|
||||
dragonSlayer.changeStrategy(LambdaStrategy.Strategy.MeleeStrategy);
|
||||
dragonSlayer.goToBattle();
|
||||
LOGGER.info("Red dragon emerges.");
|
||||
dragonSlayer.changeStrategy(LambdaStrategy.Strategy.ProjectileStrategy);
|
||||
dragonSlayer.goToBattle();
|
||||
LOGGER.info("Black dragon lands before you.");
|
||||
dragonSlayer.changeStrategy(LambdaStrategy.Strategy.SpellStrategy);
|
||||
dragonSlayer.goToBattle();
|
||||
```
|
||||
|
||||
프로그램 출력은 위와 동일합니다.
|
||||
|
||||
## 클래스 다이어그램
|
||||
|
||||
|
||||
|
||||
## 적용 가능성
|
||||
|
||||
다음과 같은 경우 전략(Strategy) 패턴을 사용합니다.
|
||||
|
||||
* 비슷한 클래스들이 동작 만 다른 경우가 많이 있습니다. 전략 패턴은 여러 동작 중 하나를 클래스로 구성하는 방법을 제공합니다.
|
||||
* 알고리즘의 다양한 변형이 필요합니다. 예를 들어 다양한 공간 / 시간 절충을 반영하는 알고리즘을 정의할 수 있습니다. 이러한 변형이 알고리즘의 클래스 계층 구조로 구현될 때 전략 패턴을 사용할 수 있습니다.
|
||||
* 알고리즘은 클라이언트가 알 필요 없는 데이터를 사용합니다. 전략 패턴을 사용하여 복잡한 알고리즘 별 데이터 구조가 노출되지 않도록 합니다.
|
||||
* 클래스는 많은 동작을 정의하며 이러한 동작은 작업에서 여러 조건문으로 나타납니다. 많은 조건부 대신 관련 조건부 분기를 자체 전략 클래스로 이동하세요.
|
||||
|
||||
## 튜토리얼
|
||||
|
||||
* [전략 패턴 튜토리얼](https://www.journaldev.com/1754/strategy-design-pattern-in-java-example-tutorial)
|
||||
|
||||
## 크레딧
|
||||
|
||||
* [디자인 패턴: 재사용 가능한 객체 지향 소프트웨어의 요소](https://www.amazon.com/gp/product/0201633612/ref=as_li_tl?ie=UTF8&camp=1789&creative=9325&creativeASIN=0201633612&linkCode=as2&tag=javadesignpat-20&linkId=675d49790ce11db99d90bde47f1aeb59)
|
||||
* [자바의 함수형 프로그래밍: Java 8 Lambda 표현식의 강력한 기능 활용](https://www.amazon.com/gp/product/1937785467/ref=as_li_tl?ie=UTF8&camp=1789&creative=9325&creativeASIN=1937785467&linkCode=as2&tag=javadesignpat-20&linkId=7e4e2fb7a141631491534255252fd08b)
|
||||
* [헤드 퍼스트 디자인 패턴: 두뇌 친화적인 가이드](https://www.amazon.com/gp/product/0596007124/ref=as_li_tl?ie=UTF8&camp=1789&creative=9325&creativeASIN=0596007124&linkCode=as2&tag=javadesignpat-20&linkId=6b8b6eea86021af6c8e3cd3fc382cb5b)
|
||||
* [패턴으로 리팩토링](https://www.amazon.com/gp/product/0321213351/ref=as_li_tl?ie=UTF8&camp=1789&creative=9325&creativeASIN=0321213351&linkCode=as2&tag=javadesignpat-20&linkId=2a76fcb387234bc71b1c61150b3cc3a7)
|
||||
@ -30,7 +30,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<groupId>com.iluwatar.layers</groupId>
|
||||
<artifactId>layers</artifactId>
|
||||
|
||||
@ -29,7 +29,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>lazy-loading</artifactId>
|
||||
<dependencies>
|
||||
|
||||
@ -30,7 +30,7 @@
|
||||
<parent>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>leader-election</artifactId>
|
||||
<dependencies>
|
||||
|
||||
@ -28,7 +28,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>leader-followers</artifactId>
|
||||
<dependencies>
|
||||
|
||||
@ -29,7 +29,7 @@
|
||||
<parent>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<modelVersion>4.0.0</modelVersion>
|
||||
|
||||
|
||||
@ -28,7 +28,7 @@
|
||||
<parent>
|
||||
<groupId>com.iluwatar</groupId>
|
||||
<artifactId>java-design-patterns</artifactId>
|
||||
<version>1.25.0-SNAPSHOT</version>
|
||||
<version>1.24.0-SNAPSHOT</version>
|
||||
</parent>
|
||||
<artifactId>master-worker-pattern</artifactId>
|
||||
<dependencies>
|
||||
|
||||
Some files were not shown because too many files have changed in this diff Show More
Reference in New Issue
Block a user