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Manual
12

JPA Entity Fields

static type, including a generic java.lang.Object, as long as the type of the actual value at runtime ... should have a numeric type: @Entity public class EntityWithVersionField { @Version long version
Tutorial
12

Step 2: Define a JPA Entity Class

{ private static final long serialVersionUID = 1L; // Persistent Fields: @Id @GeneratedValue Long id; private String name; private Date signingDate
Tutorial
12

Step 2: Define a JPA Entity Class

class Guest implements Serializable { private static final long serialVersionUID = 1L; // Persistent Fields: @Id @GeneratedValue Long id; private String name; private
Tutorial
12

Step 2: Entity Class and Persistence Unit

{ private static final long serialVersionUID = 1L; // Persistent Fields: @Id @GeneratedValue Long id; private String name; private Date signingDate; // Constructors
Tutorial
12

Step 2: Entity Class and Persistence Unit

.persistence.Id; @Entity public class Guest implements Serializable { private static final long serialVersionUID = 1L; // Persistent Fields: @Id @GeneratedValue Long id
Tutorial
12

Step 2: Entity Class and Persistence Unit

static final long serialVersionUID = 1L; // Persistent Fields: @Id @GeneratedValue Long id; private String name; private Date signingDate; // Constructors: public
Tutorial
12

Step 2: Entity Class and Persistence Unit

public class Guest implements Serializable { private static final long serialVersionUID = 1L; // Persistent Fields: @Id @GeneratedValue Long id; private String name
Result
12

Posting to ObjectDB Website - Important Instructions

. Avoid overflow of published source code examples by breaking long lines. Long stack traces (> 50
Manual
8

Database Management Settings

is very useful for recurring queries with identical arguments. As long as the relevant data in
Manual
8

FROM clause (JPQL / Criteria API)

a simpler long path expression (which is not an option for a collection). For example: SELECT c, c