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Defining a JPA Entity Class

the database. Conceptually this is similar to serializable classes, which are marked as having the ability ... non-serializable objects (except that all JPA exceptions are unchecked whereas Java IO exceptions

Entity Management Settings

should be used as a fallback persisting method for instances of serializable types that are non

Posting Sample Code

, The project does not contain a persistence unit, An entity or IdClass class should implement the java.io.Serializable interface).

Step 2: Entity Class and Persistence Unit

; import java.io.Serializable; import java.sql.Date; import javax.persistence.Entity; import javax ... Serializable { private static final long serialVersionUID = 1L; // Persistent Fields

Step 2: Entity Class and Persistence Unit

-java">package guest; import java.io.Serializable; import java.sql.Date; import javax ... public class Guest implements Serializable { private static final long serialVersionUID = 1L

Step 2: Define a JPA Entity Class

code: package guest; import java.io.Serializable; import java.sql ... .persistence.Id; @Entity public class Guest implements Serializable { private static final long

Step 2: Define a JPA Entity Class

code: package guest; import java.io.Serializable; import java.sql.Date ... .persistence.Id; @Entity public class Guest implements Serializable { private static final long

[ODB1] Chapter 6 - Persistent Objects

>Serializable interface and it has a meaningful toString() method. The

javax.jdo.Constants

JDO JavaDoc Reference Documentation - Constant values used in JDO.

javax.jdo.PersistenceManagerFactory

javax.jdoInterface PersistenceManagerFactory Superinterfaces: Serializable