Package jakarta.persistence
Interface PersistenceUtil
- All Known Subinterfaces:
PersistenceUnitUtil
public interface PersistenceUtil
Utility interface between the application and the persistence
provider(s).
The PersistenceUtil
interface instance obtained from
the Persistence
class is used to determine the load state
of an entity or entity attribute regardless of which persistence
provider in the environment created the entity.
- Since:
- 2.0
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Method Summary
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Method Details
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isLoaded
Determine the load state of a given persistent attribute.- Parameters:
entity
- entity containing the attributeattributeName
- name of attribute whose load state is to be determined- Returns:
- false if entity's state has not been loaded or if the attribute state has not been loaded, else true
-
isLoaded
Determine the load state of an entity. This method can be used to determine the load state of an entity passed as a reference. An entity is considered loaded if all attributes for whichFetchType.EAGER
has been specified have been loaded.The
isLoaded(Object, String)
method should be used to determine the load state of an attribute. Not doing so might lead to unintended loading of state.- Parameters:
entity
- whose load state is to be determined- Returns:
- false if the entity has not been loaded, else true
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