mirror of
https://github.com/tiennm99/java-design-patterns.git
synced 2026-08-18 04:28:04 +00:00
docs: Content SEO updates (#2990)
* update yaml frontmatter format * update abstract document * update abstract factory * use the new pattern template * acyclic visitor seo * adapter seo * ambassador seo * acl seo * aaa seo * async method invocation seo * balking seo * bridge seo * builder seo * business delegate and bytecode seo * caching seo * callback seo * chain seo * update headings * circuit breaker seo * client session + collecting parameter seo * collection pipeline seo * combinator SEO * command seo * cqrs seo * commander seo * component seo * composite seo * composite entity seo * composite view seo * context object seo * converter seo * crtp seo * currying seo * dao seo * data bus seo * data locality seo * data mapper seo * dto seo * decorator seo * delegation seo * di seo * dirty flag seo * domain model seo * double buffer seo * double checked locking seo * double dispatch seo * dynamic proxy seo * event aggregator seo * event-based asynchronous seo * eda seo * event queue seo * event sourcing seo * execute around seo * extension objects seo * facade seo * factory seo * factory kit seo * factory method seo * fanout/fanin seo * feature toggle seo * filterer seo * fluent interface seo * flux seo * flyweight seo * front controller seo * function composition seo * game loop seo * gateway seo * guarded suspension seo * half-sync/half-async seo * health check seo * hexagonal seo * identity map seo * intercepting filter seo * interpreter seo * iterator seo * layers seo * lazy loading seo * leader election seo * leader/followers seo * lockable object seo * rename and add seo for marker interface * master-worker seo * mediator seo * memento seo * metadata mapping seo * microservice aggregator seo * api gw seo * microservices log aggregration seo * mvc seo * mvi seo * mvp seo * mvvm seo * monad seo * monitor seo * monostate seo * multiton seo * mute idiom seo * naked objects & notification seo * null object seo * object mother seo * object pool seo * observer seo * optimistic locking seo * page controller seo * page object seo * parameter object seo * partial response seo * pipeline seo * poison pill seo * presentation model seo * private class data seo * producer-consumer seo * promise seo * property seo * prototype seo * proxy seo * queue-based load leveling seo * reactor seo * registry seo * repository seo * RAII seo * retry seo * role object seo * saga seo * separated interface seo * serialized entity seo * serialized lob seo * servant seo * server session seo * service layer seo * service locator seo * service to worker seo * sharding seo * single table inheritance seo * singleton seo * spatial partition seo * special case seo * specification seo * state seo * step builder seo * strangler seo * strategy seo * subclass sandbox seo * table module seo * template method seo * throttling seo * tolerant reader seo * trampoline seo * transaction script seo * twin seo * type object seo * unit of work seo * update method seo * value object seo * version number seo * virtual proxy seo * visitor seo * seo enhancements * seo improvements * SEO enhancements * SEO improvements * SEO additions * SEO improvements * more SEO improvements * rename hexagonal + SEO improvements * SEO improvements * more SEO stuff * SEO improvements * SEO optimizations * SEO enhancements * enchance SEO * improve SEO * SEO improvements * update headers
This commit is contained in:
@@ -1,25 +1,27 @@
|
||||
---
|
||||
title: Optimistic Offline Lock
|
||||
title: "Optimistic Offline Lock Pattern in Java: Mastering Conflict Resolution in Database Transactions"
|
||||
shortTitle: Optimistic Offline Lock
|
||||
description: "Explore the Optimistic Offline Lock design pattern in Java with detailed implementation guidelines and practical examples. Learn how to manage data concurrency effectively in your Java applications."
|
||||
category: Data access
|
||||
language: en
|
||||
tag:
|
||||
- Concurrency
|
||||
- Data access
|
||||
- Fault tolerance
|
||||
- Isolation
|
||||
- Persistence
|
||||
- Transactions
|
||||
- Concurrency
|
||||
- Data access
|
||||
- Fault tolerance
|
||||
- Isolation
|
||||
- Persistence
|
||||
- Transactions
|
||||
---
|
||||
|
||||
## Also known as
|
||||
|
||||
* Optimistic Concurrency Control
|
||||
|
||||
## Intent
|
||||
## Intent of Optimistic Offline Lock Design Pattern
|
||||
|
||||
To manage concurrent data modifications without using long-duration database locks, thus improving system performance and scalability.
|
||||
The Optimistic Offline Lock pattern in Java is specifically designed to manage concurrent data modifications without the need for long-duration database locks, thus enhancing system performance and scalability.
|
||||
|
||||
## Explanation
|
||||
## Detailed Explanation of Optimistic Offline Lock Pattern with Real-World Examples
|
||||
|
||||
Real-world example
|
||||
|
||||
@@ -33,7 +35,9 @@ Wikipedia says
|
||||
|
||||
> Optimistic concurrency control (OCC), also known as optimistic locking, is a concurrency control method applied to transactional systems such as relational database management systems and software transactional memory.
|
||||
|
||||
**Programmatic Example**
|
||||
## Programmatic Example of Optimistic Offline Lock Pattern in Java
|
||||
|
||||
In this section, we delve into the practical implementation of the Optimistic Offline Lock in Java. By following these steps, you can ensure that your application handles data conflicts and concurrency with minimal overhead.
|
||||
|
||||
The Optimistic Offline Lock pattern is a concurrency control method that allows multiple transactions to proceed without locks, resolving conflicts only when they occur. This pattern is useful in scenarios where the likelihood of conflicting transactions is low and long-duration locks could hamper performance and scalability.
|
||||
|
||||
@@ -88,24 +92,24 @@ public class CardUpdateService implements UpdateService<Card> {
|
||||
|
||||
In this code snippet, the doUpdate method in the CardUpdateService class is a programmatic example of the Optimistic Offline Lock pattern. It allows the Card entity to be updated without locks and resolves conflicts by checking the version of the Card before the update.
|
||||
|
||||
## Applicability
|
||||
## When to Use the Optimistic Offline Lock Pattern in Java
|
||||
|
||||
* When multiple transactions need to access and modify the same data simultaneously without causing data inconsistencies.
|
||||
* In systems where the likelihood of conflicting transactions is low.
|
||||
* When you want to avoid long-duration locks that could hamper performance and scalability.
|
||||
|
||||
## Tutorials
|
||||
## Optimistic Offline Lock Pattern Java Tutorials
|
||||
|
||||
* [Offline Concurrency Control (Baeldung)](https://www.baeldung.com/cs/offline-concurrency-control)
|
||||
* [Optimistic Locking in JPA (Baeldung)](https://www.baeldung.com/jpa-optimistic-locking)
|
||||
|
||||
## Known uses
|
||||
## Real-World Applications of Optimistic Offline Lock Pattern in Java
|
||||
|
||||
* Web-based applications with high-read, low-write access patterns.
|
||||
* Distributed systems where locking resources for long durations is not feasible.
|
||||
* Java enterprise applications using JPA or Hibernate for data persistence.
|
||||
|
||||
## Consequences
|
||||
## Benefits and Trade-offs of Optimistic Offline Lock Pattern
|
||||
|
||||
Benefits:
|
||||
|
||||
@@ -119,13 +123,13 @@ Trade-offs:
|
||||
* Can lead to more frequent retries of transactions if conflicts are common.
|
||||
* Not suitable for high-conflict scenarios where frequent data modification collisions occur.
|
||||
|
||||
## Related Patterns
|
||||
## Related Java Design Patterns
|
||||
|
||||
* Pessimistic Offline Lock: Unlike the Optimistic Offline Lock, this pattern uses locks to prevent conflicts by locking the data during the entire transaction. It is useful in high-conflict scenarios.
|
||||
* [Unit of Work](https://java-design-patterns.com/patterns/unit-of-work/): Helps in managing a set of changes as a single transaction, ensuring data integrity. It can be used in conjunction with Optimistic Offline Lock to handle complex transactions.
|
||||
* [Version Number](https://java-design-patterns.com/patterns/version-number/): A common technique used in Optimistic Offline Lock to detect conflicts by maintaining a version number for each data entity.
|
||||
|
||||
## Credits
|
||||
## References and Credits
|
||||
|
||||
* [Design Patterns: Elements of Reusable Object-Oriented Software](https://amzn.to/3w0pvKI)
|
||||
* [Java Persistence with Hibernate](https://amzn.to/44tP1ox)
|
||||
|
||||
Reference in New Issue
Block a user