Tipo de esquema abstracto desconocido

Según la respuesta de axtavt, es casi seguro que se trata de un problema de nomenclatura entre Notebean y NoteBean. ¿Hay alguna convención particular a seguir aquí, solo CamelCase normal?Tipo de esquema abstracto desconocido

Creo que he actualizado la anotación @NamedQuery en la entidad y estoy usando las del controlador, y los nombres parecen coincidir, sin embargo, sigo recibiendo el mismo error sobre el esquema, que puedo ' obtener mucha información sobre.

controlador JPA:

package net.bounceme.dur.nntp.controller; 

import java.util.*; 
import java.util.logging.Logger; 
import javax.mail.Message; 
import javax.persistence.*; 
import javax.swing.DefaultListModel; 
import net.bounceme.dur.nntp.model.NoteBean; 

public class NotesController { 

    private static final long serialVersionUID = 1L; 
    private static final Logger LOG = Logger.getLogger(NotesController.class.getName()); 
    private Message message; 
    private List<NoteBean> notes = new ArrayList<NoteBean>(); 
    private DefaultListModel defaultListModel = new DefaultListModel(); 
    private EntityManagerFactory emf; 
    private EntityManager em; 
    private String PERSISTENCE_UNIT_NAME = "nntpPU"; 

    public NotesController() { 
     emf = Persistence.createEntityManagerFactory(PERSISTENCE_UNIT_NAME); 
     em = emf.createEntityManager(); 
     LOG.info("entity manager made???" + em.isOpen()); 
     populateList(); 
    } 

    private void populateList() { 
     LOG.info("open?" + em.isOpen()); 
     em.getTransaction().begin(); 
     LOG.info("trying to populate....."); 
     //Query q = em.createQuery("SELECT n FROM NoteBean n WHERE n.id = :id"); 
     Query q = em.createNamedQuery("NoteBean.findAll"); 
     LOG.info(q.toString()); 
     List results = q.getResultList(); 
     em.getTransaction().commit(); 
     setNotes(results); 
     DefaultListModel dlm = new DefaultListModel(); 
     for (NoteBean n : getNotes()) { 
      dlm.addElement(n); 
     } 
     setDefaultListModel(dlm); 
    } 

    public Message getMessage() { 
     return message; 
    } 

    public void addNote(NoteBean noteBean) { 
     LOG.info(noteBean.toString()); 
     em.getTransaction().begin(); 
     em.persist(noteBean); 
     em.getTransaction().commit(); 
     populateList(); 
    } 

    public void setMessage(Message message) { 
     this.message = message; 
    } 

    private List<NoteBean> getNotes() { 
     return notes; 
    } 

    private void setNotes(List<NoteBean> notes) { 
     this.notes = notes; 
    } 

    public DefaultListModel getDefaultListModel() { 
     return defaultListModel; 
    } 

    public void setDefaultListModel(DefaultListModel defaultListModel) { 
     this.defaultListModel = defaultListModel; 
    } 
}

entidad:

package net.bounceme.dur.nntp.model; 

import java.io.Serializable; 
import java.util.Date; 
import javax.persistence.*; 
import javax.xml.bind.annotation.XmlRootElement; 

@Entity 
@Table(name = "NOTEBEAN", catalog = "nntp", schema = "") 
@XmlRootElement 
@NamedQueries({ 
    @NamedQuery(name = "NoteBean.findAll", query = "SELECT n FROM NoteBean n"), 
    @NamedQuery(name = "NoteBean.findById", query = "SELECT n FROM Notebean n WHERE n.id = :id"), 
    @NamedQuery(name = "NoteBean.findByStamp", query = "SELECT n FROM Notebean n WHERE n.stamp = :stamp"), 
    @NamedQuery(name = "NoteBean.findByNote", query = "SELECT n FROM Notebean n WHERE n.note = :note") 
}) 
public class NoteBean implements Serializable { 

    private static final long serialVersionUID = 1L; 
    @Id 
    @Basic(optional = false) 
    @Column(name = "ID", nullable = false) 
    private Long id; 
    @Column(name = "STAMP") 
    @Temporal(TemporalType.DATE) 
    private Date stamp; 
    @Column(name = "NOTE", length = 255) 
    private String note; 

    public NoteBean() { 
    } 

    public NoteBean(Long id) { 
     this.id = id; 
    } 

    public Long getId() { 
     return id; 
    } 

    public void setId(Long id) { 
     this.id = id; 
    } 

    public Date getStamp() { 
     return stamp; 
    } 

    public void setStamp(Date stamp) { 
     this.stamp = stamp; 
    } 

    public String getNote() { 
     return note; 
    } 

    public void setNote(String note) { 
     this.note = note; 
    } 

    @Override 
    public int hashCode() { 
     int hash = 0; 
     hash += (id != null ? id.hashCode() : 0); 
     return hash; 
    } 

    @Override 
    public boolean equals(Object object) { 
     // TODO: Warning - this method won't work in the case the id fields are not set 
     if (!(object instanceof NoteBean)) { 
      return false; 
     } 
     NoteBean other = (NoteBean) object; 
     if ((this.id == null && other.id != null) || (this.id != null && !this.id.equals(other.id))) { 
      return false; 
     } 
     return true; 
    } 

    @Override 
    public String toString() { 
     return "net.bounceme.dur.nntp.model.Notebean[ id=" + id + " ]"; 
    } 
}

error de tiempo de ejecución:

init: 
Deleting: /home/thufir/NetBeansProjects/SwingNNTP/build/built-jar.properties 
deps-jar: 
Updating property file: /home/thufir/NetBeansProjects/SwingNNTP/build/built-jar.properties 
Compiling 2 source files to /home/thufir/NetBeansProjects/SwingNNTP/build/classes 
warning: [options] bootstrap class path not set in conjunction with -source 1.5 
Note: /home/thufir/NetBeansProjects/SwingNNTP/src/net/bounceme/dur/nntp/controller/NotesController.java uses unchecked or unsafe operations. 
Note: Recompile with -Xlint:unchecked for details. 
1 warning 
compile: 
run: 
May 03, 2012 7:23:05 AM net.bounceme.dur.nntp.PropertiesReader getProps 
INFO: NNTP.loadMessages... 
May 03, 2012 7:23:06 AM net.bounceme.dur.nntp.controller.MessagesEnum <init> 
INFO: starting controller.. 
[TopLink Info]: 2012.05.03 07:23:10.319--ServerSession(10922033)--TopLink, version: Oracle TopLink Essentials - 2.0.1 (Build b09d-fcs (12/06/2007)) 
Exception in thread "AWT-EventQueue-0" Local Exception Stack: 
Exception [TOPLINK-8034] (Oracle TopLink Essentials - 2.0.1 (Build b09d-fcs (12/06/2007))): oracle.toplink.essentials.exceptions.EJBQLException 
Exception Description: Error compiling the query [NoteBean.findByNote: SELECT n FROM Notebean n WHERE n.note = :note]. Unknown abstract schema type [Notebean]. 
    at oracle.toplink.essentials.exceptions.EJBQLException.unknownAbstractSchemaType(EJBQLException.java:494) 
    at oracle.toplink.essentials.internal.parsing.ParseTreeContext.classForSchemaName(ParseTreeContext.java:163) 
    at oracle.toplink.essentials.internal.parsing.SelectNode.getClassOfFirstVariable(SelectNode.java:366) 
    at oracle.toplink.essentials.internal.parsing.SelectNode.getReferenceClass(SelectNode.java:354) 
    at oracle.toplink.essentials.internal.parsing.ParseTree.getReferenceClass(ParseTree.java:463) 
    at oracle.toplink.essentials.internal.parsing.ParseTree.adjustReferenceClassForQuery(ParseTree.java:103) 
    at oracle.toplink.essentials.internal.parsing.EJBQLParseTree.populateReadQueryInternal(EJBQLParseTree.java:127) 
    at oracle.toplink.essentials.internal.parsing.EJBQLParseTree.populateQuery(EJBQLParseTree.java:108) 
    at oracle.toplink.essentials.internal.ejb.cmp3.base.EJBQueryImpl.buildEJBQLDatabaseQuery(EJBQueryImpl.java:219) 
    at oracle.toplink.essentials.queryframework.EJBQLPlaceHolderQuery.processEjbQLQuery(EJBQLPlaceHolderQuery.java:111) 
    at oracle.toplink.essentials.internal.sessions.AbstractSession.processEJBQLQueries(AbstractSession.java:2059) 
    at oracle.toplink.essentials.internal.sessions.AbstractSession.processEJBQLQueries(AbstractSession.java:2046) 
    at oracle.toplink.essentials.internal.sessions.DatabaseSessionImpl.postConnectDatasource(DatabaseSessionImpl.java:724) 
    at oracle.toplink.essentials.internal.sessions.DatabaseSessionImpl.loginAndDetectDatasource(DatabaseSessionImpl.java:604) 
    at oracle.toplink.essentials.ejb.cmp3.EntityManagerFactoryProvider.login(EntityManagerFactoryProvider.java:280) 
    at oracle.toplink.essentials.internal.ejb.cmp3.EntityManagerSetupImpl.deploy(EntityManagerSetupImpl.java:229) 
    at oracle.toplink.essentials.internal.ejb.cmp3.base.EntityManagerFactoryImpl.getServerSession(EntityManagerFactoryImpl.java:93) 
    at oracle.toplink.essentials.internal.ejb.cmp3.base.EntityManagerFactoryImpl.createEntityManagerImpl(EntityManagerFactoryImpl.java:126) 
    at oracle.toplink.essentials.internal.ejb.cmp3.base.EntityManagerFactoryImpl.createEntityManagerImpl(EntityManagerFactoryImpl.java:120) 
    at oracle.toplink.essentials.internal.ejb.cmp3.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:91) 
    at net.bounceme.dur.nntp.controller.NotesController.<init>(NotesController.java:23) 
    at net.bounceme.dur.nntp.gui.Detail.<init>(Detail.java:20) 
    at net.bounceme.dur.nntp.gui.NewFrame.initComponents(NewFrame.java:30) 
    at net.bounceme.dur.nntp.gui.NewFrame.<init>(NewFrame.java:17) 
    at net.bounceme.dur.nntp.gui.NewFrame$2.run(NewFrame.java:62) 
    at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:251) 
    at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:705) 
    at java.awt.EventQueue.access$000(EventQueue.java:101) 
    at java.awt.EventQueue$3.run(EventQueue.java:666) 
    at java.awt.EventQueue$3.run(EventQueue.java:664) 
    at java.security.AccessController.doPrivileged(Native Method) 
    at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76) 
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:675) 
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:211) 
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:128) 
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:117) 
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:113) 
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:105) 
    at java.awt.EventDispatchThread.run(EventDispatchThread.java:90) 
BUILD SUCCESSFUL (total time: 10 seconds)

Sólo como referencia, consola mysql salida:

mysql> describe nntp.NOTEBEAN; 
+-------+--------------+------+-----+---------+-------+ 
| Field | Type   | Null | Key | Default | Extra | 
+-------+--------------+------+-----+---------+-------+ 
| ID | bigint(20) | NO | PRI | NULL |  | 
| STAMP | date   | YES |  | NULL |  | 
| NOTE | varchar(255) | YES |  | NULL |  | 
+-------+--------------+------+-----+---------+-------+ 
3 rows in set (0.00 sec) 

mysql> 
mysql> select * from nntp.NOTEBEAN; 
Empty set (0.04 sec) 

mysql>

Fuente

2012-05-03 Thufir

El nombre de la clase de entidad (y, por lo tanto, el nombre lógico predeterminado de la entidad para su uso en consultas) es NoteBean, mientras que stacktrace se queja de Notebean.

Por lo tanto, se debe utilizar en lugar de NoteBeanNotebean en sus consultas:

@NamedQuery(name = "Notebean.findById", 
    query = "SELECT n FROM NoteBean n WHERE n.id = :id")

Fuente

2012-05-03 13:41:54 axtavt

me gusta su lógica, pero todavía me 'Desconocido Tipo de esquema abstracto [Notebean] .' con esa consulta. Esa anotación '@ Table' es aún más sospechosa después de leer lo que usted señaló sobre NoteBean frente a Notebean. El mismo resultado, sin embargo. – Thufir

@Thufir: tenga en cuenta que debe cambiarlo en todas las consultas con nombre. – axtavt

Actualicé la pregunta para intentar solucionar el problema de nomenclatura. – Thufir

Tipo de esquema abstracto desconocido

Respuesta

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