CODEWITHSUNDEEP
jpaeclipselink
Saa Satyam
Saa Satyam

Reputation: 81

No [EntityType] was found for the key class [] in the Metamodel - please verify that the [Entity] class was referenced in persistence.xml

java.lang.IllegalArgumentException: No [EntityType] was found for the key class [] in the Metamodel - please verify that the [Entity] class was referenced in persistence.xml using a specific <class>  </class> property or a global <exclude-unlisted-classes>false</exclude-unlisted-classes> element.
    at org.eclipse.persistence.internal.jpa.metamodel.MetamodelImpl.entityEmbeddableManagedTypeNotFound(MetamodelImpl.java:173)

Entity class:

@Entity
@Table(name="temp_param")
public class ParamConfiguration implements Serializable {
private static final long serialVersionUID = 1L;
@Id
@Column(name = "param_group")
private String paramGroup;
public String getParamGroup() {
    return paramGroup;
}
public void setParamGroup(String paramGroup) {
    this.paramGroup = paramGroup;
}

DAO code:

 CriteriaQuery<ParamConfiguration> cq = entityManager
                .getCriteriaBuilder()
                .createQuery(ParamConfiguration.class);
     final Root<ParamConfiguration> ac = cq.from(ParamConfiguration.class);
     cq.select(ac);
     TypedQuery<ParamConfiguration> tq=entityManager.createQuery(cq);
     List<ParamConfiguration> AClist=tq.getResultList();

persistance xml:

    <persistence-unit name="serCoupons_Cdm" transaction-type="RESOURCE_LOCAL">
    <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
    <non-jta-data-source>java:/comp/env/jdbc/CDM</non-jta-data-source>


    <class>net.odcorp.sas.mrm.beans.AffinityConfiguration</class>
    <exclude-unlisted-classes>true</exclude-unlisted-classes>

Can anyone help me on this.... Is the @entity class must have all the columns in the DB table.

FYI im using Teradata as DB, Spring, JPA, JSF.

Upvotes: 3

Views: 5339

Answers (3)

carlos palma
carlos palma

Reputation: 782

I had the same issue, but in my case I was missing the @Table annotation. Also in my code don't use @Column annotation, I use @GeneratedValue(strategy= GenerationType.IDENTITY) right below @Id. It works for me without using 

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

I can provide my source code since I've just been using to learn about JPA.

Upvotes: 0

Lucky
Lucky

Reputation: 17365

Try this in your persistence.xml file,

<persistence-unit name="serCoupons_Cdm" transaction-type="RESOURCE_LOCAL">
<provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
<non-jta-data-source>jdbc/CDM</non-jta-data-source>
<exclude-unlisted-classes>false<exclude-unlisted-classes/>

exclude-unlisted-classes has true as it's default value. or if its set to true, then you need to specify the tag manually to list the entity class,

<class>com.package.Class</class>

Upvotes: 1

Jib&#39;z
Jib&#39;z

Reputation: 1003

Your ParamConfiguration entity is not listed in the persistence.xml file and you set the option exclude-unlisted-classes to true

add this to your persistence.xml file : 

<class>net.odcorp.sas.mrm.beans.ParamConfiguration</class>

be sure that the package is ok.

Upvotes: 1

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