What is optimistic locking in ORMs?
An example of an AI chatbot conversation about optimistic locking in Object-Relational Mappers (ORMs).
What is optimistic locking in ORMs?
Optimistic locking is a concurrency control method used in ORMs to prevent lost updates. It allows multiple transactions to proceed without locking the database, but checks for conflicts before committing.
How does it differ from pessimistic locking?
Unlike pessimistic locking, which locks the data for the duration of a transaction, optimistic locking assumes that conflicts are rare and only checks for them at the end.
Can you give me an example of how to implement it?
Sure! In many ORMs, you can implement optimistic locking by adding a version field to your model. When updating, the ORM checks if the version in the database matches the version in your object.
What happens if there is a conflict?
If a conflict occurs, the ORM typically throws an exception, and you can handle it by notifying the user or retrying the operation.
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