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too). @Entity public class Product implements Serializable { @Id @GeneratedValue private long id ... Category implements Serializable { @Id private long id; public Category(int id) { this.id = id ... implements Serializable { @Id //@GeneratedValue private long id; @ManyToMany(cascade=CascadeType.PERSIST

listPatientsByIDsWithBasicData(String ids) { Long st = new Date().getTime(); System.out.println ... ); System.out.println("cs size = " + cs.size()); Long ed = new Date().getTime(); System.out.println ... = GenerationType.AUTO) private Long id; private static final long serialVersionUID = 1L; @Index @OneToOne

programs demonstrate well that automatic  long primary keys are indeed much more efficient ... be filled to the maximum with new objects. Long values consume less  space than String UID and are processed faster. support Support Thank you for the clarification. The example with long keys needs

;  @Id private long id;        @OneToMany(mappedBy="document")     private ArrayList readings = new ArrayList ();        public long ... ;   @Id private long id;     private Document document = null;   

is (simple bean): public class FileNameDTO { private Long id; private String fileName; public FileNameDTO( Long id, String fileName) { this.id = id; this.fileName = fileName; } public Long getId() { return id; } public void setId( Long id) { this.id = id; } public String getFileName() { return fileName

;          @Id @GeneratedValue private long id;   ... ;          public long getId() {     ... ;    public void setId( long id) {          

class UsrlistEntity implements Serializable { private static final long serialVersionUID = -4472890635861972890L; private int id; private int dyId; private long pwd; private String usrName; private ... surname; private String job; private String phoneNumber; private Long contactHash; private String

;   em.getTransaction().begin();         Long r = ( Long ... ; em.getTransaction().begin();         r = ( Long ) q ... roundDownDateTime(Date dateTime) {         long dateTimeMs = dateTime.getTime

.AUTO) private long id; @ManyToOne(optional=false) private ETown town; public ETown getTown ... implements Serializable { private static final long serialVersionUID = 1L; @Id @GeneratedValue private Long ... public class Message implements Serializable { private static final long serialVersionUID = 1L; @Id

Long pollenDivisionEntityId; @Column(name = "pollenFamilyEntityId", insertable = false, updatable = false) @Index private Long pollenFamilyEntityId; @Column(name = "pollenGenusEntityId", insertable = false, updatable = false) @Index private Long pollenGenusEntityId; @Column(name

{ @Entity public static class ParentEntity {   @Id   @GeneratedValue   private long id ... (), child);   }   public long getId() {    return id;   }   public void setId( long id) {    this.id = id;   } } @Entity public static class ChildEntity {  

;   Long r = ( Long ) q.getSingleResult();           ... ) {         long dateTimeMs = dateTime.getTime();         long reminderMs  = dateTimeMs % 1000;      

Calendar may be supported in the future - but as long as it is not portable JPA - it should be avoided ... have replaced the Calendar fields with " long " data types which represent the millisecond value of the Date ... TimePeriod implements Serializable { private long beginTime; private long endTime; private String

; private static final long serialVersionUID = 998L;     @Id @GeneratedValue long id;     @Index private Long instrumentId;     private SafeLong tStamp; The SafeLong class is a very simple wrapper of a long -  @Embeddable public class SafeLong

do have a UUID String as their id instead of Long which is of course causing a lot of troubles. Note that this even occurrs on the same "Table" -- some saved Entitities of same type do still have a Long ID, others a String UUID. Our Base-Entity everything inherits from is declared as usual with Long

********* @Entity @IdClass(CompositePK.class) public class A {     @Id private long uid ... ;private long uid;     private String zone; } ********* Solution 2 ... {     private long uid;     private String zone; } In

TestIdHolder implements Serializable{     private static final long serialVersionUID = 1L;     private long version;     private long longId;   ... ="TestIdTableGen")     public long getLongId() {      

", valueColumnName = "idValue", pkColumnValue = "objectValueId", allocationSize = 1)   protected Long id;   private String type;   private Long revision;   protected boolean ... ; String type,       Long revision,       Project project

+ numberToGen; int startCnt = lastInstanceInMap; long timing = System.currentTimeMillis(); while (endCnt ... "); q.setParameter("container", this); q.setFlushMode(FlushModeType.AUTO); try { long l = ( Long ) q ... implements Serializable { private static final long serialVersionUID = 0L; private String cachedKey; private

) public abstract class SimpleAbstractPersonTest { private long addressID; private long contactID ... lastNameProperty() { return lastName; } public final long getAddressID() { return addressID; } public final void setAddressID( long id) { if (id 0) addressID = id; } public final long getContactID

or field. Example: @Id public Long getId() { return id; } See Also: Column GeneratedValue

= "ID") Map videoInventory; ... } @Entity public class Movie { @Id long id; String title

to its persistent fields and properties are automatically detected, as long as it is associated with an active

to support casting scalar expressions to String , and String expressions to Integer , Long , Float

, and String expressions to Integer , Long , Float , and Double . Support for typecasts between other basic

to String , and String expressions to Integer , Long , Float , and Double . Support for typecasts

to Integer , Long , Float , and Double . Support for typecasts between other basic types is not required

expressions to Integer , Long , Float , and Double . Support for typecasts between other basic types is not

expressions to Integer , Long , Float , and Double . Support for typecasts between other basic types is not

to Integer , Long , Float , and Double . Support for typecasts between other basic types is not

casting scalar expressions to String , and String expressions to Integer , Long , Float , and Double

casting scalar expressions to String , and String expressions to Integer , Long , Float , and Double

expression applying the sum operation to an Integer-valued expression, returning a Long result

, Long , Float , and Double . Support for typecasts between other basic types is not required

casting scalar expressions to String , and String expressions to Integer , Long , Float , and Double

, Long , Float , and Double . Support for typecasts between other basic types is not required

are required to support casting scalar expressions to String , and String expressions to Integer , Long

to support casting scalar expressions to String , and String expressions to Integer , Long , Float

to support casting scalar expressions to String , and String expressions to Integer , Long , Float

scalar expressions to String , and String expressions to Integer , Long , Float , and Double . Support

to Integer , Long , Float , and Double . Support for typecasts between other basic types is not

column value for the first element is 0 . Example: @Entity public class CreditCard { @Id long

Serializable {     private static final long serialVersionUID = 1L;     private long inspID;     private String inspName;     private long productID;     private String productName;     

to see that they have been added long newTotal = -1;   try {    InitialContext ... ; .lookup("SLSBObjDb");    long oldAmount = bean.countItems();    bean.addItems ... ;  lastInstance = startCnt;   } } public long howManyItemsExist(EntityManager em) {  

{   @Id   @GeneratedValue   private long id;   @OneToMany(fetch = FetchType.LAZY ... (this);    children.put(child.getChildName(), child);   }   public long getId() {    return id;   }   public void setId( long id) {    this.id = id

.IDENTITY) private Long id; @Unique @Persistent(nullValue=NullValue.EXCEPTION) private String username; public Long getId() { return id; } public void setId( Long id) { this.id = id; } public String ... Long id;         @Unique       

Jakarta Persistence (JPA) Method in jakarta.persistence.criteria.CriteriaBuilder Expression sumAsLong (    Expression x ) Create an aggregate expression applying the sum operation to an Integer-valued expression, returning a Long result. Parameters: x - expression representing input

to support casting scalar expressions to String , and String expressions to Integer , Long , Float

(strategy= GenerationType.TABLE) protected Long id; @Override public Long getId() { return id; } @Override public void setId( Long id) { this.id = id; } @OneToMany(cascade={CascadeType.MERGE ... { @Id @Column(name = "project_id") @GeneratedValue(strategy= GenerationType.TABLE) protected Long id

TimePeriod implements Serializable { private long beginTime; private long endTime; private String periodType; public long getBeginTime() { return beginTime; } public void setBeginTime( long beginTime) { this.beginTime = beginTime; } public long getEndTime() { return endTime; } public void setEndTime( long