Home » Search

About entities

41-50 of 200Refresh
JPA Doc
31

remove(entity)

Method javax.persistence.EntityManager void remove(   Object entity ) Remove the entity instance. Parameters: entity - entity instance Throws: IllegalArgumentException - if the instance is not an entity or is a detached entity TransactionRequiredException - if invoked on a container-managed entity
JPA Doc
30

contains(entity)

Method javax.persistence.EntityManager boolean contains(   Object entity ) Check if the instance is a managed entity instance belonging to the current persistence context. Parameters: entity - entity instance Returns: boolean indicating if entity is in persistence context Throws: IllegalArgumentException - if not an entity Since: JPA 1.0
JPA Doc
30

entity(cls)

Method javax.persistence.metamodel.Metamodel EntityType entity(   Class cls ) Return the metamodel entity type representing the entity. Parameters: cls - the type of the represented entity Returns: the metamodel entity type Throws: IllegalArgumentException - if not an entity Since: JPA 2.0
JPA Doc
30

from(entity)

Method javax.persistence.criteria.AbstractQuery Root from(   EntityType entity ) Create and add a query root corresponding to the given entity, forming a cartesian product with any existing roots. Parameters: entity - metamodel entity representing the entity of type X Returns: query root corresponding to the given entity Since: JPA 2.0
JPA Doc
30

isLoaded(entity)

Method javax.persistence.PersistenceUtil 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 which FetchType.EAGER has been specified
JPA Doc
30

isLoadedWithReference(entity, attributeName)

Method javax.persistence.spi.ProviderUtil LoadState isLoadedWithReference(   Object entity,   String attributeName ) If the provider determines that the entity has been provided by ... . If a provider determines that the entity has been provided by itself and that either the entity attributes
JPA Doc
30

getLockMode(entity)

Method javax.persistence.EntityManager LockModeType getLockMode(   Object entity ) Get the current lock mode for the entity instance. Parameters: entity - entity instance Returns: lock mode Throws ... is not a managed entity and a transaction is active Since: JPA 2.0
JPA Doc
30

isLoaded(entity, attributeName)

Method javax.persistence.PersistenceUnitUtil boolean isLoaded(   Object entity,   String attributeName ) Determine the load state of a given persistent attribute of an entity belonging to the persistence unit. Parameters: entity - entity instance containing the attribute attributeName - name
JPA Doc
30

Entity.name

Annotation Element javax.persistence.Entity String name (Optional) The entity name. Defaults to the unqualified name of the entity class. This name is used to refer to the entity in queries. The name must not be a reserved literal in the Java Persistence query language. Default value: "" Since: JPA 1.0
JPA Doc
30

isLoaded(entity, attributeName)

Method javax.persistence.PersistenceUtil boolean isLoaded(   Object entity,   String attributeName ) Determine the load state of a given persistent attribute. Parameters: entity - entity containing ... if entity's state has not been loaded or if the attribute state has not been loaded, else true Since: JPA 2.0