IllegalArgumentException: Person[ id=null ] is not a known entity type.??? ~ Silberblatt

lundi 18 mai 2015

IllegalArgumentException: Person[ id=null ] is not a known entity type.???

Posted on 00:15 by verona

Ich arbeite gerad an einem Project mit JSF, EclipseLink. Wenn ich mein Formular abschicke rufe ich

Java Code:

Java Code:

public String save() {
PersonDAO dao = new PersonDAO();
dao.create(user);
return "/registry.xhtml";
}

Die DAO sieht hierbei wie folgt aus

Java Code:

public class PersonDAO extends GenericDAO<Person> {}

Java Code:

public class GenericDAO<T> implements AbstractBasicDAO<T> {
/**
* the entity manager
*
* @var EntityManager
*/
protected EntityManager em;
/**
* this is the class type to handle
*
* @var Class<T>
*/
private Class<T> type;
/**
* default constructor
*/
public GenericDAO() {
Type t = getClass().getGenericSuperclass();
ParameterizedType pt = (ParameterizedType) t;
type = (Class) pt.getActualTypeArguments()[0];
this.em = EntityManagerUtil.getEntityManager();
}
/**
* Make an instance managed and persistent.
*
* @param t the entity to store
* @return the stored entity
*/
@Override
public T create(final T t) {
this.em.persist(t);
return t;
}
/**
* Find by a spezified primary key.
*
* @param id the id to find
* @return the found entity
*/
@Override
public T find(final Object id) {
return (T) this.em.find(type, id);
}
/**
* Find all entites by an given query
*
* @param sql the sql query
* @return the found entity
*/
@Override
public List find(String sql) {
return em.createQuery(sql).getResultList();
}
/**
* Merge the state of the given entity into the current persistence context.
*
* @param t the entity to store
* @return the stored entity
*/
@Override
public T update(final T t) {
return this.em.merge(t);
}
/**
* delete an object by his pramary key
*
* @param id the priamary key to delete
*/
@Override
public void delete(final Object id) {
this.em.remove(this.em.getReference(type, id));
}
}

Der EntityManager sieht wie folgt aus

Java Code:

public class EntityManagerUtil {
final static org.apache.log4j.Logger logger = Logger.getLogger(EntityManagerUtil.class);
/**
* the entity manager
*
* @var EntityManager
*/
private static EntityManager entityManager;
/**
* default constructor
*
* @throw ExceptionInInitializerError
*/
static {
try {
EntityManagerFactory factory = Persistence.createEntityManagerFactory("JAPPU");
entityManager = factory.createEntityManager();
} catch( Throwable ex ) {
logger.error("Error on EntityManager inializing", ex);
throw new IllegalStateException(ex);
}
}
/**
* get the EntityManager
*
* @return EntityManager
*/
public static EntityManager getEntityManager() {
return entityManager;
}
}

Die Entity sieht wie folgt aus

Java Code:

package com.abado.jap.entities.user;
import java.io.Serializable;
import java.util.Collection;
import java.util.Date;
import javax.persistence.*;
import javax.validation.constraints.NotNull;
import javax.validation.constraints.Size;
import javax.xml.bind.annotation.XmlTransient;
@Entity
@Table(name="person")
public class Person implements Serializable {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@Basic(optional = false)
@Column(name = "id")
private Long id;
@OneToMany(mappedBy = "createdBy")
private Collection<Person> creators;
@JoinColumn(name = "created_by", referencedColumnName = "id")
@ManyToOne
private Person createdBy;
@Column(name = "created_at")
@Temporal(TemporalType.TIMESTAMP)
private Date created_at;
@OneToMany(mappedBy = "modifiedBy")
private Collection<Person> modifiers;
@JoinColumn(name = "modified_by", referencedColumnName = "id")
@ManyToOne
private Person modifiedBy;
@Column(name = "modified_at")
@Temporal(TemporalType.TIMESTAMP)
private Date modified_at;
@Basic(optional = false)
@NotNull
@Column(name = "block")
private boolean block;
@Size(max = 255)
@Column(name = "active_code")
private String activeCode;
@Column(name = "gender")
private EGender gender;
@Column(name = "firstname")
private String firstname;
@Column(name = "lastname")
private String lastname;
@Column(name = "birthdate")
@Temporal(TemporalType.TIMESTAMP)
private Date birthdate;
@Column(name = "email")
private String email;
@Column(name = "password")
private String password;
/**
* default constructor
*/
public Person() {
}
//--- GETTER / SETTER
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public Person getCreatedby() {
return createdBy;
}
public void setCreatedBy(Person created_by) {
this.createdBy = created_by;
}
@XmlTransient
public Collection<Person> getCreators() {
return creators;
}
public void setCreators(Collection<Person> creators) {
this.creators = creators;
}
public Date getCreatedAt() {
return created_at;
}
public void setCreatedAt(Date created_at) {
this.created_at = created_at;
}
public Person getModifiedBy() {
return modifiedBy;
}
public void setModified_by(Person modified_by) {
this.modifiedBy = modified_by;
}
@XmlTransient
public Collection<Person> getModifiers() {
return modifiers;
}
public void setModifiers(Collection<Person> modifiers) {
this.modifiers = modifiers;
}
public Date getModified_at() {
return modified_at;
}
public void setModified_at(Date modified_at) {
this.modified_at = modified_at;
}
public boolean getBlock() {
return block;
}
public void setBlock(boolean block) {
this.block = block;
}
public String getActiveCode() {
return activeCode;
}
public void setActiveCode(String activeCode) {
this.activeCode = activeCode;
}
public EGender getGender() {
return gender;
}
public void setGender(EGender gender) {
this.gender = gender;
}
public String getFirstname() {
return firstname;
}
public void setFirstname(String firstname) {
this.firstname = firstname;
}
public String getLastname() {
return lastname;
}
public void setLastname(String lastname) {
this.lastname = lastname;
}
public Date getBirthdate() {
return birthdate;
}
public void setBirthdate(Date birthdate) {
this.birthdate = birthdate;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
/**
*
* @return
*/
@Override
public int hashCode() {
int hash = 0;
hash += (id != null ? id.hashCode() : 0);
return hash;
}
/**
*
* @param object
* @return
*/
@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 Person)) {
return false;
}
Person other = (Person) object;
if ((this.id == null && other.id != null) || (this.id != null && !this.id.equals(other.id))) {
return false;
}
return true;
}
/**
*
* @return
*/
@Override
public String toString() {
return "com.abado.jap.entities.user.Person[ id=" + id + " ]";
}
}

Die persistence.xml

Code:

    <?xml version="1.0" encoding="UTF-8"?>

    <persistence version="2.1" xmlns="http://ift.tt/1m1OuvG; xmlns:xsi="http://ift.tt/Atvu06; xsi:schemaLocation="http://ift.tt/1cKbVbQ http://ift.tt/1vizMH7;

      <persistence-unit name="JAPPU" transaction-type="RESOURCE_LOCAL">

        <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>

        <class>com.abado.jap.entities.user.Person</class>

        <exclude-unlisted-classes>true</exclude-unlisted-classes>

        <properties>

          <property name="javax.persistence.jdbc.url" value="jdbc:mysql://localhost:3306/jap?zeroDateTimeBehavior=convertToNull"/>

          <property name="javax.persistence.jdbc.user" value="root"/>

          <property name="javax.persistence.jdbc.driver" value="com.mysql.jdbc.Driver"/>

          <property name="javax.persistence.jdbc.password" value=""/>

          <property name="javax.persistence.schema-generation.database.action" value="create"/>

        </properties>

      </persistence-unit>

    </persistence>

Wenn ich jetzt allerdings das Formular abschicke über die obige save-Methode
wird mir ausgeaben

Zitat:

javax.faces.el.EvaluationException: java.lang.IllegalArgumentException: Object: com.abado.jap.entities.user.Person[ id=null ] is not a known entity type.
at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:101)
at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102)
at javax.faces.component.UICommand.broadcast(UICommand.java:315)
at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:790)
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1282)
at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:198)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:646)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1682)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:318)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:160)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:734)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:673)
at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:99)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:174)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:415)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:282)
at com.sun.enterprise.v3.services.impl.ContainerMapper$HttpHandlerCallable.call(ContainerMapper.java:459)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:167)
at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:201)
at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:175)
at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:235)
at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:284)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:201)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:133)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:112)
at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:561)
at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:112)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:117)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:56)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:137)
at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:565)
at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:545)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.IllegalArgumentException: Object: com.abado.jap.entities.user.Person[ id=null ] is not a known entity type.
at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.registerNewObjectForPersist(UnitOfWorkImpl.java:4228)
at org.eclipse.persistence.internal.jpa.EntityManagerImpl.persist(EntityManagerImpl.java:496)
at com.abado.jap.utils.database.impl.GenericDAO.create(GenericDAO.java:52)
at com.abado.jap.services.UserService.save(UserService.java:89)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at com.sun.el.parser.AstValue.invoke(AstValue.java:289)
at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:304)
at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105)
at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:87)
... 36 more

Weis einer von euch wieso ich den Fehler erhalte?

IllegalArgumentException: Person[ id=null ] is not a known entity type.???

Categories: IllegalArgumentException: Person[ id=null ] is not a known entity type.???

Silberblatt

lundi 18 mai 2015

IllegalArgumentException: Person[ id=null ] is not a known entity type.???

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