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Manual
13

Index Definition

a value of one of the following persistable types: Primitive types: boolean, byte, short, char, int, long ... , Long, Float, Double. java.math.BigInteger, java.math.BigDecimal. java.lang.String. java.util.Date
Manual
13

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
13

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
13

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
13

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
13

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
13

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
13

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
Manual
9

CRUD Database Operations with JPA

when exactly one result value is expected (a single Long object in the query above). Let's see another example
Manual
9

Database Management Settings

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