7:43 a.m.
Hi!
I seam-gen to build platform to start my application development. I generated codes
using seam generate-entities from DB which has ID generated by DB itself. So, I tried to
add @Generated(GenerationTime.ALWAYS) to ID, but it caused the error as shown below.
Am I misunderstanding something? Is there a way to enable generated code respecting DB
generated IDs?
Table scheme
Column | Type | Modifiers
| ---------+---------+----------------------------------------------------
| id | integer | not null default nextval('users_id_seq'::regclass)
| name | text | not null
| address | text | not null
| email | text |
| tel | text |
| Indexes:
| "users_pkey" PRIMARY KEY, btree (id)
|
|
| | package jp.tydfam.test1;
| | // Generated 2007/07/01 13:46:57 by Hibernate Tools 3.2.0.b9
| |
| | import javax.persistence.Column;
| | import javax.persistence.Entity;
| | import javax.persistence.Id;
| | import javax.persistence.Table;
| |
| | import org.hibernate.annotations.Generated;
| | import org.hibernate.annotations.GenerationTime;
| | import org.hibernate.validator.NotNull;
| |
| | /**
| | * Users generated by hbm2java
| | */
| | @Entity
| | @Table(name = "users", schema = "public")
| | public class Users implements java.io.Serializable {
| |
| | private int id;
| | private String name;
| | private String address;
| | private String email;
| | private String tel;
| |
| | public Users() {
| | }
| |
| | public Users(int id, String name, String address) {
| | this.id = id;
| | this.name = name;
| | this.address = address;
| | }
| | public Users(int id, String name, String address, String email, String tel) {
| | this.id = id;
| | this.name = name;
| | this.address = address;
| | this.email = email;
| | this.tel = tel;
| | }
| |
| | @Id
| | @Generated(GenerationTime.ALWAYS)
| | @Column(name = "id", unique = true, nullable = false, insertable=false,
updatable=false)
| | @NotNull
| | public int getId() {
| | return this.id;
| | }
| |
| | public void setId(int id) {
| | this.id = id;
| | }
| |
| | @Column(name = "name", nullable = false)
| | @NotNull
| | public String getName() {
| | return this.name;
| | }
| |
| | public void setName(String name) {
| | this.name = name;
| | }
| | : : :
| |
| | }
| |
| Error log in server.log (partial)
|
| | : : :
| | 2007-07-01 13:52:32,909 DEBUG [org.hibernate.cfg.AnnotationBinder] Processing
annotations of jp.tydfam.test1.Users.id
| | 2007-07-01 13:52:32,909 DEBUG [org.hibernate.cfg.Ejb3Column] Binding column id
unique true
| | 2007-07-01 13:52:32,909 DEBUG [org.hibernate.cfg.AnnotationBinder] id is an id
| | 2007-07-01 13:52:32,909 DEBUG [org.hibernate.cfg.annotations.SimpleValueBinder]
building SimpleValue for id
| | 2007-07-01 13:52:32,909 DEBUG [org.hibernate.cfg.annotations.PropertyBinder]
Building property id
| | 2007-07-01 13:52:32,910 DEBUG [org.jboss.ejb3.ServiceDelegateWrapper] Starting
failed persistence.units:ear=test1.ear,unitName=test1
| | java.lang.NullPointerException
| | at
org.hibernate.cfg.annotations.PropertyBinder.make(PropertyBinder.java:145)
| | at org.hibernate.cfg.AnnotationBinder.bindId(AnnotationBinder.java:1738)
| | at
org.hibernate.cfg.AnnotationBinder.processElementAnnotations(AnnotationBinder.java:1180)
| | at
org.hibernate.cfg.AnnotationBinder.bindClass(AnnotationBinder.java:710)
| | at
org.hibernate.cfg.AnnotationConfiguration.processArtifactsOfType(AnnotationConfiguration.java:452)
| | : :
:
| |
| |
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