Package jakarta.persistence
Interface PersistenceUtil
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- All Known Subinterfaces:
PersistenceUnitUtil
public interface PersistenceUtil
Utility interface between the application and the persistence provider(s).The
PersistenceUtil
interface instance obtained from thePersistence
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
All Methods Instance Methods Abstract Methods Modifier and Type Method Description boolean
isLoaded(Object entity)
Determine the load state of an entity.boolean
isLoaded(Object entity, String attributeName)
Determine the load state of a given persistent attribute.
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Method Detail
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isLoaded
boolean isLoaded(Object entity, String attributeName)
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
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isLoaded
boolean isLoaded(Object entity)
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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