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types and Serializable types (user or system defined). Note : Only instances of entity classes ... of the color3 field are stored internally as strings (i.e. “RED”, “GREEN”, “BLUE”). Serializable Types Every serializable class (user defined or system defined) is also persistable, but relying

this is similar to serializable classes, which are marked as having the ability to be serialized. The Point ... to the NotSerializableException that Java throws (unrelated to JPA), when trying to serialize non- serializable objects

types (@Embeddable) Mapped super classes (@MappedSuperclass) Enum classes Serializable types Persistent ... . Arrays , including multidimensional arrays. Any other serializable type . Lifecycle Events JPA

of serializable types that are non persistable otherwise (e.g. a user defined class, which is not an entity

a persistence unit, An entity or IdClass class should implement the java.io. Serializable interface).

Jakarta Persistence (JPA) Class jakarta.persistence.PessimisticLockException java.lang.Object ∟ java.lang.Throwable ∟ java.lang.Exception ∟ java.lang.RuntimeException ∟ jakarta.persistence.PersistenceException ∟ jakarta.persistence.PessimisticLockException Implemented Interfaces: Serializable

Jakarta Persistence (JPA) Enum jakarta.persistence.PersistenceUnitTransactionType java.lang.Object ∟ java.lang.Enum ∟ jakarta.persistence.PersistenceUnitTransactionType Implemented Interfaces: Constable , Comparable , Serializable Enumerates the possible approaches to transaction management in

Jakarta Persistence (JPA) Enum jakarta.persistence.FlushModeType java.lang.Object ∟ java.lang.Enum ∟ jakarta.persistence.FlushModeType Implemented Interfaces: Constable , Comparable , Serializable Enumerates flush modes recognized by the EntityManager . When queries are executed

Jakarta Persistence (JPA) Enum jakarta.persistence.GenerationType java.lang.Object ∟ java.lang.Enum ∟ jakarta.persistence.GenerationType Implemented Interfaces: Constable , Comparable , Serializable Enumerates the defined primary key generation strategies. See Also: GeneratedValue Since: Jakarta

Jakarta Persistence (JPA) Enum jakarta.persistence.LockModeType java.lang.Object ∟ java.lang.Enum ∟ jakarta.persistence.LockModeType Implemented Interfaces: FindOption , RefreshOption , Constable , Comparable , Serializable Enumerates the kinds of optimistic or pessimistic lock

Jakarta Persistence (JPA) Enum jakarta.persistence.InheritanceType java.lang.Object ∟ java.lang.Enum ∟ jakarta.persistence.InheritanceType Implemented Interfaces: Constable , Comparable , Serializable Enumerated the options for mapping entity inheritance. See Also: Inheritance::strategy

Jakarta Persistence (JPA) Class jakarta.persistence.LockTimeoutException java.lang.Object ∟ java.lang.Throwable ∟ java.lang.Exception ∟ java.lang.RuntimeException ∟ jakarta.persistence.PersistenceException ∟ jakarta.persistence.LockTimeoutException Implemented Interfaces: Serializable Thrown by

Jakarta Persistence (JPA) Enum jakarta.persistence.ConstraintMode java.lang.Object ∟ java.lang.Enum ∟ jakarta.persistence.ConstraintMode Implemented Interfaces: Constable , Comparable , Serializable Used to control the application of a constraint. Since: Jakarta Persistence (JPA) 2.1 Enum

Jakarta Persistence (JPA) Enum jakarta.persistence.DiscriminatorType java.lang.Object ∟ java.lang.Enum ∟ jakarta.persistence.DiscriminatorType Implemented Interfaces: Constable , Comparable , Serializable Defines supported types of the discriminator column. See Also: DiscriminatorColumn

Jakarta Persistence (JPA) Class jakarta.persistence.EntityNotFoundException java.lang.Object ∟ java.lang.Throwable ∟ java.lang.Exception ∟ java.lang.RuntimeException ∟ jakarta.persistence.PersistenceException ∟ jakarta.persistence.EntityNotFoundException Implemented Interfaces: Serializable Thrown

Jakarta Persistence (JPA) Class jakarta.persistence.EntityExistsException java.lang.Object ∟ java.lang.Throwable ∟ java.lang.Exception ∟ java.lang.RuntimeException ∟ jakarta.persistence.PersistenceException ∟ jakarta.persistence.EntityExistsException Implemented Interfaces: Serializable Thrown by

Jakarta Persistence (JPA) Enum jakarta.persistence.FetchType java.lang.Object ∟ java.lang.Enum ∟ jakarta.persistence.FetchType Implemented Interfaces: Constable , Comparable , Serializable Defines strategies for fetching data from the database. The EAGER strategy is a requirement

Jakarta Persistence (JPA) Enum jakarta.persistence.EnumType java.lang.Object ∟ java.lang.Enum ∟ jakarta.persistence.EnumType Implemented Interfaces: Constable , Comparable , Serializable Enumerates available options for mapping enumerated types. The values of this enumeration specify

Jakarta Persistence (JPA) Enum in jakarta.persistence.criteria.Predicate jakarta.persistence.criteria.Predicate.BooleanOperator java.lang.Object ∟ java.lang.Enum ∟ jakarta.persistence.criteria.Predicate.BooleanOperator Implemented Interfaces: Constable , Comparable , Serializable Since: Jakarta

Jakarta Persistence (JPA) Enum jakarta.persistence.criteria.Nulls java.lang.Object ∟ java.lang.Enum ∟ jakarta.persistence.criteria.Nulls Implemented Interfaces: Constable , Comparable , Serializable Specifies the precedence of null values within query result sets. See Also: CriteriaBuilder::asc

, Serializable Since: Jakarta Persistence (JPA) 1.0 Enum Constants BASIC Basic attribute Since: Jakarta

Jakarta Persistence (JPA) Enum in jakarta.persistence.metamodel.Bindable jakarta.persistence.metamodel.Bindable.BindableType java.lang.Object ∟ java.lang.Enum ∟ jakarta.persistence.metamodel.Bindable.BindableType Implemented Interfaces: Constable , Comparable , Serializable Since: Jakarta

, Serializable Since: Jakarta Persistence (JPA) 1.0 Enum Constants COLLECTION Collection-valued attribute

Jakarta Persistence (JPA) Enum jakarta.persistence.ValidationMode java.lang.Object ∟ java.lang.Enum ∟ jakarta.persistence.ValidationMode Implemented Interfaces: Constable , Comparable , Serializable The validation mode to be used by the provider for the persistence unit. Since: Jakarta Persistence

Jakarta Persistence (JPA) Enum in jakarta.persistence.metamodel.Type jakarta.persistence.metamodel.Type.PersistenceType java.lang.Object ∟ java.lang.Enum ∟ jakarta.persistence.metamodel.Type.PersistenceType Implemented Interfaces: Constable , Comparable , Serializable Since: Jakarta Persistence

Jakarta Persistence (JPA) Enum in jakarta.persistence.criteria.CriteriaBuilder jakarta.persistence.criteria.CriteriaBuilder.Trimspec java.lang.Object ∟ java.lang.Enum ∟ jakarta.persistence.criteria.CriteriaBuilder.Trimspec Implemented Interfaces: Constable , Comparable , Serializable Used

Jakarta Persistence (JPA) Enum jakarta.persistence.criteria.JoinType java.lang.Object ∟ java.lang.Enum ∟ jakarta.persistence.criteria.JoinType Implemented Interfaces: Constable , Comparable , Serializable Defines the three varieties of join. Support for RIGHT outer joins is not required

[] , char[] or Character[] , a Java enum type, or any other serializable type. The use of the Basic

Jakarta Persistence (JPA) Enum jakarta.persistence.AccessType java.lang.Object ∟ java.lang.Enum ∟ jakarta.persistence.AccessType Implemented Interfaces: Constable , Comparable , Serializable Used with the Access annotation to specify an access type to be applied to an entity class, mapped

Jakarta Persistence (JPA) Enum jakarta.persistence.CascadeType java.lang.Object ∟ java.lang.Enum ∟ jakarta.persistence.CascadeType Implemented Interfaces: Constable , Comparable , Serializable Defines the set of cascadable operations that are propagated to the associated entity. The value cascade

Jakarta Persistence (JPA) Enum jakarta.persistence.CacheRetrieveMode java.lang.Object ∟ java.lang.Enum ∟ jakarta.persistence.CacheRetrieveMode Implemented Interfaces: FindOption , Constable , Comparable , Serializable Specifies how the EntityManager interacts with the second-level cache when data

Jakarta Persistence (JPA) Enum jakarta.persistence.CacheStoreMode java.lang.Object ∟ java.lang.Enum ∟ jakarta.persistence.CacheStoreMode Implemented Interfaces: FindOption , RefreshOption , Constable , Comparable , Serializable Specifies how the EntityManager interacts with the second-level cache

Jakarta Persistence (JPA) Class jakarta.persistence.SchemaValidationException java.lang.Object ∟ java.lang.Throwable ∟ java.lang.Exception ∟ jakarta.persistence.SchemaValidationException Implemented Interfaces: Serializable Thrown when schema validation fails. See Also: SchemaManager::validate

Jakarta Persistence (JPA) Class jakarta.persistence.QueryTimeoutException java.lang.Object ∟ java.lang.Throwable ∟ java.lang.Exception ∟ java.lang.RuntimeException ∟ jakarta.persistence.PersistenceException ∟ jakarta.persistence.QueryTimeoutException Implemented Interfaces: Serializable Thrown by

Jakarta Persistence (JPA) Class jakarta.persistence.RollbackException java.lang.Object ∟ java.lang.Throwable ∟ java.lang.Exception ∟ java.lang.RuntimeException ∟ jakarta.persistence.PersistenceException ∟ jakarta.persistence.RollbackException Implemented Interfaces: Serializable Thrown by

Jakarta Persistence (JPA) Enum jakarta.persistence.SharedCacheMode java.lang.Object ∟ java.lang.Enum ∟ jakarta.persistence.SharedCacheMode Implemented Interfaces: Constable , Comparable , Serializable Specifies how the provider must use a second-level cache for the persistence unit. Corresponds

Jakarta Persistence (JPA) Enum jakarta.persistence.TemporalType java.lang.Object ∟ java.lang.Enum ∟ jakarta.persistence.TemporalType Implemented Interfaces: Constable , Comparable , Serializable Type used to indicate a specific mapping of Date or Calendar . Deprecated: Newly-written code

: Serializable Thrown by the persistence provider when a transaction is required but is not active

Jakarta Persistence (JPA) Enum jakarta.persistence.SynchronizationType java.lang.Object ∟ java.lang.Enum ∟ jakarta.persistence.SynchronizationType Implemented Interfaces: Constable , Comparable , Serializable Specifies whether the persistence context is always automatically synchronized

Jakarta Persistence (JPA) Class jakarta.persistence.NonUniqueResultException java.lang.Object ∟ java.lang.Throwable ∟ java.lang.Exception ∟ java.lang.RuntimeException ∟ jakarta.persistence.PersistenceException ∟ jakarta.persistence.NonUniqueResultException Implemented Interfaces: Serializable

Jakarta Persistence (JPA) Class jakarta.persistence.NoResultException java.lang.Object ∟ java.lang.Throwable ∟ java.lang.Exception ∟ java.lang.RuntimeException ∟ jakarta.persistence.PersistenceException ∟ jakarta.persistence.NoResultException Implemented Interfaces: Serializable Thrown by

Jakarta Persistence (JPA) Enum jakarta.persistence.ParameterMode java.lang.Object ∟ java.lang.Enum ∟ jakarta.persistence.ParameterMode Implemented Interfaces: Constable , Comparable , Serializable Specifies the mode of a parameter of a stored procedure query. See Also: StoredProcedureQuery

. Serializable ; import java.sql.Date; import javax.persistence.Entity; import javax.persistence.GeneratedValue; import javax.persistence.Id; @Entity public class Guest implements Serializable { private

; import java.io. Serializable ; import javax.persistence.*; @Entity public class Point implements Serializable { private static final long serialVersionUID = 1L; @Id @GeneratedValue private long id

. Serializable ; import javax.persistence.*; @Entity public class Point implements Serializable { private

. Serializable ; import java.sql.Date; import javax.persistence.Entity; import javax.persistence.GeneratedValue; import javax.persistence.Id; @Entity public class Guest implements Serializable { private static

java.io. Serializable ; import java.sql.Date; import javax.persistence.Entity; import javax.persistence.GeneratedValue; import javax.persistence.Id; @Entity public class Guest implements Serializable

. Serializable ; import java.sql.Date; import javax.persistence.Entity; import javax.persistence.GeneratedValue; import javax.persistence.Id; @Entity public class Guest implements Serializable { private static

. Serializable ; import java.sql.Date; import javax.persistence.Entity; import javax.persistence.GeneratedValue; import javax.persistence.Id; @Entity public class Guest implements Serializable { private

code: package guest; import java.io. Serializable ; import java.sql.Date; import javax.persistence.Entity ... implements Serializable { private static final long serialVersionUID = 1L; // Persistent Fields: @Id