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docs: update unit of work

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Ilkka Seppälä
2024-05-27 14:44:11 +03:00
parent 0abb75a20d
commit 790d2d6916
1 changed files with 20 additions and 22 deletions
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unit-of-work/README.md
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@@ -59,7 +59,9 @@ public interface IUnitOfWork<T> {
void commit();
}
```
```java
@Slf4j
@RequiredArgsConstructor
public class ArmsDealer implements IUnitOfWork<Weapon> {
@@ -95,9 +97,6 @@ public class ArmsDealer implements IUnitOfWork<Weapon> {
context.put(operation, weaponsToOperate);
}
/**
* All UnitOfWork operations are batched and executed together on commit only.
*/
@Override
public void commit() {
if (context == null || context.isEmpty()) {
@@ -146,19 +145,22 @@ public class ArmsDealer implements IUnitOfWork<Weapon> {
Here is how the whole app is put together.
```java
// create some weapons
var enchantedHammer = new Weapon(1, "enchanted hammer");
var brokenGreatSword = new Weapon(2, "broken great sword");
var silverTrident = new Weapon(3, "silver trident");
public static void main(String[] args) {
// create some weapons
var enchantedHammer = new Weapon(1, "enchanted hammer");
var brokenGreatSword = new Weapon(2, "broken great sword");
var silverTrident = new Weapon(3, "silver trident");
// create repository
var weaponRepository = new ArmsDealer(new HashMap<String, List<Weapon>>(), new WeaponDatabase());
// create repository
var weaponRepository = new ArmsDealer(new HashMap<>(),
new WeaponDatabase());
// perform operations on the weapons
weaponRepository.registerNew(enchantedHammer);
weaponRepository.registerModified(silverTrident);
weaponRepository.registerDeleted(brokenGreatSword);
weaponRepository.commit();
// perform operations on the weapons
weaponRepository.registerNew(enchantedHammer);
weaponRepository.registerModified(silverTrident);
weaponRepository.registerDeleted(brokenGreatSword);
weaponRepository.commit();
}
```
Here is the console output.
@@ -174,10 +176,6 @@ Here is the console output.
21:39:21.989 [main] INFO com.iluwatar.unitofwork.ArmsDealer - Commit finished.
```
## Class diagram
![Unit of Work](./etc/unit-of-work.urm.png "Unit of Work")
## Applicability
* Use when you need to manage multiple operations that need to be treated as a single transaction.
@@ -186,8 +184,9 @@ Here is the console output.
## Tutorials
* [Repository and Unit of Work Pattern - Wolfgang Ofner](https://www.programmingwithwolfgang.com/repository-and-unit-of-work-pattern/)
* [Unit of Work - a Design Pattern - Mono](https://mono.software/2017/01/13/unit-of-work-a-design-pattern/)
* [Repository and Unit of Work Pattern (Wolfgang Ofner)](https://www.programmingwithwolfgang.com/repository-and-unit-of-work-pattern/)
* [Unit Of Work Design Pattern (Code Project)](https://www.codeproject.com/Articles/581487/Unit-of-Work-Design-Pattern)
* [Unit of Work - a Design Pattern (Mono)](https://mono.software/2017/01/13/unit-of-work-a-design-pattern/)
## Known Uses
@@ -219,5 +218,4 @@ Trade-offs:
* [Domain-Driven Design: Tackling Complexity in the Heart of Software](https://amzn.to/3wlDrze)
* [Java Persistence with Hibernate](https://amzn.to/44tP1ox)
* [Patterns of Enterprise Application Architecture](https://amzn.to/3WfKBPR)
* [Unit Of Work Design Pattern - Code Project](https://www.codeproject.com/Articles/581487/Unit-of-Work-Design-Pattern)
* [Unit Of Work - Martin Fowler](https://martinfowler.com/eaaCatalog/unitOfWork.html)
* [Unit Of Work (Martin Fowler)](https://martinfowler.com/eaaCatalog/unitOfWork.html)