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in the managed type. Since: Jakarta Persistence (JPA) 1 .0

Jakarta Persistence (JPA) Method in jakarta.persistence.PersistenceUnit String name (Optional) The name by which the entity manager factory is to be accessed in the environment referencing context; not needed when dependency injection is used. Default: "" Since: Jakarta Persistence (JPA) 1 .0

of the given name is not declared in the managed type. Since: Jakarta Persistence (JPA) 1 .0

Jakarta Persistence (JPA) Method in jakarta.persistence.PersistenceUnit String unitName (Optional) The name of the persistence unit as defined in the persistence.xml file. If specified, the persistence unit for the entity manager factory that is accessible in JNDI must have the same name. Default: "" Since: Jakarta Persistence (JPA) 1 .0

.spi.PersistenceProvider" or remove PERSISTENCE_PROVIDER field and also update TCK signature tests. Since: Jakarta Persistence (JPA) 1 .0

Jakarta Persistence (JPA) Method in jakarta.persistence.metamodel.MapAttribute Class getKeyJavaType() Return the Java type of the map key. Returns: Java key type. Since: Jakarta Persistence (JPA) 1 .0

Returns: false if entity's state has not been loaded or if the attribute state has not been loaded, else true. Since: Jakarta Persistence (JPA) 1 .0

Jakarta Persistence (JPA) Field in jakarta.persistence.Persistence providers Since: Jakarta Persistence (JPA) 1 .0

Jakarta Persistence (JPA) Method in jakarta.persistence.metamodel.MapAttribute Type getKeyType() Return the type representing the key type of the map. Returns: type representing key type. Since: Jakarta Persistence (JPA) 1 .0

in the managed type. Since: Jakarta Persistence (JPA) 1 .0

Jakarta Persistence (JPA) Method in jakarta.persistence.criteria.AbstractQuery Predicate getGroupRestriction() Return the predicate that corresponds to the restriction(s) over the grouping items, or null if no restrictions have been specified. Returns: having clause predicate. Since: Jakarta Persistence (JPA) 1 .0

of the given name is not declared in the managed type. Since: Jakarta Persistence (JPA) 1 .0

Jakarta Persistence (JPA) Method in jakarta.persistence.criteria.AbstractQuery boolean isDistinct() Return whether duplicate query results must be eliminated or retained. Returns: boolean indicating whether duplicate query results must be eliminated. Since: Jakarta Persistence (JPA) 1 .0

present in the managed type. Since: Jakarta Persistence (JPA) 1 .0

the createTupleQuery method, the result type is Tuple . Otherwise, the result type is Object . Returns: result type. Since: Jakarta Persistence (JPA) 1 .0

of the given name is not declared in the managed type. Since: Jakarta Persistence (JPA) 1 .0

. Parameters: restriction - a simple or compound boolean expression Returns: the modified join object. Since: Jakarta Persistence (JPA) 2. 1

Jakarta Persistence (JPA) Method in jakarta.persistence.metamodel.Metamodel Set getManagedTypes() Return the metamodel managed types. Returns: the metamodel managed types. Since: Jakarta Persistence (JPA) 1 .0

whether they must be retained Returns: the modified query. Since: Jakarta Persistence (JPA) 1 .0

Jakarta Persistence (JPA) Method in jakarta.persistence.metamodel.Metamodel Set getEntities() Return the metamodel entity types. Returns: the metamodel entity types. Since: Jakarta Persistence (JPA) 1 .0

have been defined. Modifications to the set do not affect the query. Returns: the set of query roots. Since: Jakarta Persistence (JPA) 1 .0

Jakarta Persistence (JPA) Method in jakarta.persistence.metamodel.Metamodel Set getEmbeddables() Return the metamodel embeddable types. Returns am empty set if there are no embeddable types. Returns: the metamodel embeddable types. Since: Jakarta Persistence (JPA) 1 .0

Jakarta Persistence (JPA) Method in jakarta.persistence.criteria.AbstractQuery Selection getSelection() Return the selection of the query, or null if no selection has been set. Returns: selection item. Since: Jakarta Persistence (JPA) 1 .0

Jakarta Persistence (JPA) Method in jakarta.persistence.metamodel.PluralAttribute CollectionType getCollectionType() Return the collection type. Returns: collection type. Since: Jakarta Persistence (JPA) 1 .0

Jakarta Persistence (JPA) Method in jakarta.persistence.criteria.AbstractQuery List getGroupList() Return a list of the grouping expressions. Returns empty list if no grouping expressions have been specified. Modifications to the list do not affect the query. Returns: the list of grouping expressions. Since: Jakarta Persistence (JPA) 1 .0

Jakarta Persistence (JPA) Method in jakarta.persistence.criteria.CommonAbstractCriteria Predicate getRestriction() Return the predicate that corresponds to the where clause restriction(s), or null if no restrictions have been specified. Returns: where clause predicate. Since: Jakarta Persistence (JPA) 1 .0

: IllegalArgumentException - if not an entity. Since: Jakarta Persistence (JPA) 1 .0

Jakarta Persistence (JPA) Method in jakarta.persistence.criteria.CommonAbstractCriteria Set getParameters() Return the parameters of the query. Returns empty set if there are no parameters. Modifications to the set do not affect the query. Returns: the query parameters. Since: Jakarta Persistence (JPA) 1 .0

: the metamodel managed type. Throws: IllegalArgumentException - if not a managed class. Since: Jakarta Persistence (JPA) 1 .0

Jakarta Persistence (JPA) Method in jakarta.persistence.criteria.CriteriaBuilder CriteriaQuery createQuery() Create a CriteriaQuery object. Returns: criteria query object. Since: Jakarta Persistence (JPA) 1 .0

type. Throws: IllegalArgumentException - if not an embeddable class. Since: Jakarta Persistence (JPA) 1 .0

Jakarta Persistence (JPA) Method in jakarta.persistence.criteria.CriteriaBuilder CriteriaQuery createQuery (    Class resultClass ) Create a CriteriaQuery object with the given result type. Parameters: resultClass - type of the query result Returns: criteria query object. Since: Jakarta Persistence (JPA) 1 .0

Jakarta Persistence (JPA) Method in jakarta.persistence.metamodel.SingularAttribute Type getType() Return the type that represents the type of the attribute. Returns: type of attribute. Since: Jakarta Persistence (JPA) 1 .0

. Parameters: restrictions - zero or more restriction predicates Returns: the modified join object. Since: Jakarta Persistence (JPA) 2. 1

Jakarta Persistence (JPA) Method in jakarta.persistence.metamodel.StaticMetamodel Class value Class being modelled by the annotated class. Since: Jakarta Persistence (JPA) 1 .0

Jakarta Persistence (JPA) Method in jakarta.persistence.criteria.CollectionJoin CollectionAttribute getModel() Return the metamodel representation for the collection attribute. Returns: metamodel type representing the Collection that is the target of the join. Since: Jakarta Persistence (JPA) 1 .0

Jakarta Persistence (JPA) Method in jakarta.persistence.metamodel.Type PersistenceType getPersistenceType() Return the persistence type. Returns: persistence type. Since: Jakarta Persistence (JPA) 1 .0

Jakarta Persistence (JPA) Method in jakarta.persistence.criteria.CommonAbstractCriteria Subquery subquery (    Class type ) Create a subquery of the query. Parameters: type - the subquery result type Returns: subquery. Since: Jakarta Persistence (JPA) 1 .0

Jakarta Persistence (JPA) Method in jakarta.persistence.metamodel.Type Class getJavaType() Return the represented Java type. Returns: Java type. Since: Jakarta Persistence (JPA) 1 .0

Jakarta Persistence (JPA) Method in jakarta.persistence.criteria.CommonAbstractCriteria Subquery subquery (    EntityType type ) Create a subquery of the query. Parameters: type - the subquery result type Returns: subquery. Since: Jakarta Persistence (JPA) 1 .0

Jakarta Persistence (JPA) Method in jakarta.persistence.metamodel.PluralAttribute Type getElementType() Return the type representing the element type of the collection. Returns: element type. Since: Jakarta Persistence (JPA) 1 .0

: IllegalArgumentException - if an argument is a tuple- or array-valued selection item. Since: Jakarta Persistence (JPA) 1 .0

Jakarta Persistence (JPA) Method in jakarta.persistence.metamodel.SingularAttribute boolean isId() Is the attribute an id attribute? This method returns true if the attribute is a simple id , an embedded id , or an attribute of an id class . Returns: boolean indicating whether the attribute is an id. Since: Jakarta Persistence (JPA) 1 .0

Jakarta Persistence (JPA) Method in jakarta.persistence.metamodel.SingularAttribute boolean isVersion() Is the attribute a version attribute? Returns: boolean indicating whether the attribute is a version attribute. Since: Jakarta Persistence (JPA) 1 .0

: IllegalArgumentException - if an argument is a tuple- or array-valued selection item. Since: Jakarta Persistence (JPA) 1 .0

Jakarta Persistence (JPA) Method in jakarta.persistence.metamodel.SingularAttribute boolean isOptional() Can the attribute be null? Returns: boolean indicating whether the attribute can be null. See Also: jakarta.persistence.Basic.optional Since: Jakarta Persistence (JPA) 1 .0

Jakarta Persistence (JPA) Method in jakarta.persistence.metamodel.Attribute boolean isAssociation() Is the attribute an association. Returns: boolean indicating whether the attribute corresponds to an association. Since: Jakarta Persistence (JPA) 1 .0

Jakarta Persistence (JPA) Method in jakarta.persistence.criteria.CriteriaBuilder CriteriaQuery createTupleQuery() Create a CriteriaQuery object that returns a tuple of objects as its result. Returns: criteria query object. Since: Jakarta Persistence (JPA) 1 .0

Jakarta Persistence (JPA) Method in jakarta.persistence.metamodel.Attribute boolean isCollection() Is the attribute collection-valued (represents a Collection , Set , List , or Map ). Returns: boolean indicating whether the attribute is collection-valued. Since: Jakarta Persistence (JPA) 1 .0

Jakarta Persistence (JPA) Method in jakarta.persistence.criteria.CriteriaBuilder CriteriaUpdate createCriteriaUpdate (    Class targetEntity ) Create a CriteriaUpdate query object to perform a bulk update operation. Parameters: targetEntity - target type for update operation Returns: the query object. Since: Jakarta Persistence (JPA) 2. 1