[jboss-user] [Persistence, JBoss/CMP, Hibernate, Database] - assigning a column as an id for persisting
hello all,
i'm trying to create a new record in an oracle xe database using webservices, entity
and session beans. i get the error
"Caused by: org.hibernate.id.IdentifierGenerationException: ids for this class must
be manually assigned before calling save():" when i try to create the record however.
i have annotated a column with the id value but when i try to create the record, it doesnt
seem to recognise that?
here are my classes for clarity:
package domain;
|
| import javax.persistence.*;
| import org.jboss.web.WebService;
| import org.jboss.wsf.spi.*;
| import org.jboss.wsf.spi.annotation.WebContext;
|
| @Entity
| @Table(name="Audiorec")
| @WebContext(contextRoot="/AVmanBean")
| public class Audiorec implements java.io.Serializable{
| private int Barcode_audiorec;
| private String Audiorec_alias;
| private String Serial_audiorec;
| private String Media_audiorec;
| private String Formats_audiorec;
|
| public Audiorec() {
| }
|
|
| public Audiorec(String Alias, Integer Barcode, String Model, String Serial, String
Media, String Formats, String Inputs, String Outputs) {
| super();
| this.Audiorec_alias = Alias;
| this.Barcode_audiorec = Barcode;
| this.Serial_audiorec = Serial;
| }
|
| @Id
| @Column(name="Audiorec_alias")
| public String getAudiorec_alias( ) { return Audiorec_alias; }
| public void setAudiorec_alias(String alias) { this.Audiorec_alias = alias; }
|
| @Column(name="Barcode_audiorec")
| public int getBarcode_audiorec( ) { return Barcode_audiorec; }
| public void setBarcode_audiorec(int barcode) { this.Barcode_audiorec = barcode; }
|
| @Column(name="Serial_audiorec")
| public String getSerial_audiorec( ) { return Serial_audiorec; }
| public void setSerial_audiorec(String serial) { this.Serial_audiorec = serial; }
|
| @Column(name="Media_audiorec")
| public String getMedia_audiorec( ) { return Media_audiorec; }
| public void setMedia_audiorec(String media) { this.Media_audiorec = media; }
|
| @Column(name="Formats_audiorec")
| public String getFormats_audiorec( ) { return Formats_audiorec; }
| public void setFormats_audiorec(String formats) { this.Formats_audiorec = formats;
}
|
| }
and my session bean:
package Audiorec;
|
| import javax.ejb.Stateless;
| import javax.jws.WebMethod;
| import javax.jws.WebParam;
| import javax.persistence.EntityManager;
|
| import javax.persistence.PersistenceContext;
|
| import domain.Audiorec;
| import javax.ejb.TransactionAttribute;
| import javax.ejb.TransactionAttributeType;
| import org.jboss.ws.annotation.*;
| import javax.jws.WebService;
| import org.jboss.wsf.spi.annotation.WebContext;
|
| @Stateless
| @WebService(name="AVmanBean", serviceName="AVmanBean")
| //@WebContext(contextRoot="/AVmanBean")
| public class AVmanBean implements AVmanRemote{
| @PersistenceContext
| (unitName="AVmanBean")
| private EntityManager manager;
|
| @TransactionAttribute(TransactionAttributeType.REQUIRED)
| public void createAudiorec(@WebParam(name = "Alias")
| String Alias, @WebParam(name = "barcode")Integer Barcode, @WebParam(name =
"serial")String Serial, @WebParam(name = "media")String Media)
| {
| Audiorec audiorec = new Audiorec();
| audiorec.setAudiorec_alias(Alias);
| audiorec.setBarcode_audiorec(Barcode);
| audiorec.setSerial_audiorec(Serial);
| audiorec.setMedia_audiorec(Media);
|
| manager.persist(audiorec);
| }
|
| public String findAudiorec(@WebParam(name = "Audiorec_alias")
| String alias) {
| Audiorec arrr = manager.find(Audiorec.class, alias);
| return arrr.getSerial_audiorec();
| }
|
|
| }
i am able to search records through my webservices so i'm hoping nothing's majorly
out of place but i'm a bit stumped on this id thing. i'm reading up on hibernate
right now but i thought i'd just throw it out here if anyone could steer me in the
right direction
cheers for reading thus far :)
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