About long

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Saving custom list which implements java.util.List fails

, as long as they are declared as java.util.List So the same example runs with db4o and Hibernate ... of list, as long as it is an instance of java.util.List? Because it doesn't matter how the list is implemented as long as you can get and set the list-elements as defined in the List-interface
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1

Selective merge/cascade of detatched entity

(); for (int i = 0; i < 10 ; i++) {   EntityManager em = emf.getEntityManager();   long time ... ); em.getTransaction().commit(); long time = System.currentTimeMillis(); em.getTransaction ... that only watches for future changes, that might go a long way to solving my issue. Thanks
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1

Should I be able to persist a JFrame (or gui components in general)?

" interfaces like this, so that I am not spending a long time (I'm slow) programming what I'll call "mapping ... .swing.JFrame implements Serializable { private static final long serialVersionUID = 1L; @Id @GeneratedValue private long id; public NewJFrame() { initComponents
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1

Threaded Test - Failed to commit transaction: Unexpected internal exception

generating a random UUID - I understand this will be slower than using a generated id or a long ... again. My final object will also have a CreateTime (long) and Priority (int) as I want to query for the oldest ... -8227-ea2d4c9dce3f - (38, 39) This degrades further for as long as I let it run. I've also deployed
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1

Trouble viewing db in Explorer.

">                 [2012-06 ... ="true" fetchSize="0">                
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1

Unexpected exception (Error 990) on find

, and there comes only Exceptions when the values becomes sometimes relativly long (> 256 chars). When I ... ? You mentioned long strings as map values, but in this context, long strings as entity keys
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1

Problem with entities detection

{ private static final long serialVersionUID = 1L; @Id @GeneratedValue ... ") private Long idAlumno; @Column(name = "dni") private String dni; @Column(name = "nombre ... { /** * */ private static final long serialVersionUID = 1L; String ciudad
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1

java 8 LocalDateTime is not working in query

();     }     @Entity     public static class MyEntity {         @Id         private Long id ... ;         protected MyEntity() {}         public Long getId() { return id; }         public void setId(Long id) { this.id = id; }         public LocalDateTime getCreated() { return created
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1

"where in" query

{         @Id @GeneratedValue long id;     } } Thanks. That would be fine if upgrading didn't break ... around it by using the long form of the query. Might have to start a new topic when I try another upgrade. felixobjectdb prezage
Issue
1

500Mb ObjectDb database opening issue

Hi, I have observed that 500 Mb objectDb database opening time is very slow (~3 seconds) for following code long time = System.currentTimeMillis(); m_EntityMgrFactory = Persistence ... any way to speed-up open time for big databases? Definitely, it's too long for 500 Mb database