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Facts About First-Level Cache

Deepika Sahu answered on December 30, 2022 Popularity 1/10 Helpfulness 1/10

answer Facts About First-Level Cache

Facts About First-Level Cache

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The first-level cache is associated with a specific “session” object and other session objects in the application can not see it.
The scope of cache objects is of the session.
Once the session is closed, cached objects are gone forever.
The first-level cache is enabled by default and we can not disable it.
When we query an entity the first time, it is retrieved from the database and stored in the first-level cache associated with hibernate session.
If we query the same entity again with the same session object, it will be loaded from the cache and no SQL query will be executed.
The loaded entity can be removed from the session using evict() method. 
The next loading of this entity will again make a database call if it has been removed using evict() method.
The whole session cache can be removed using clear() method. 
It will remove all the entities stored in the cache.

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Contributed on Dec 30 2022

Deepika Sahu

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