JPA - Managed Entity
> JPA - Java Persistence API (JPA)
Table of Contents
1 - About
future updates to the entity will be tracked.
The behavior is undefined if the same Java instance is made managed in more than one persistence context
2 - Articles Related
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3 - Management
3.1 - Contains
The contains() method can be used to determine whether an entity instance is managed in the current persistence context.
The contains method returns true:
- If the entity instance is new, and the persist method has been called on the entity or the persist operation has been cascaded to it.
The contains method returns false:
- If the instance is detached.
- If the remove method has been called on the entity, or the remove operation has been cascaded to it.
- If the instance is new, and the persist method has not been called on the entity or the persist operation has not been cascaded to it.
4 - Documentation / Reference
- Chapter 3.2.8 Managed Instances from the specifications