package mo.kudocs.framework.bean;

import java.io.Serializable;
import java.util.Date;

import javax.persistence.AccessType;
import javax.persistence.Column;
import javax.persistence.EmbeddableSuperclass;
import javax.persistence.Entity;
import javax.persistence.GeneratorType;
import javax.persistence.Id;
import javax.persistence.Inheritance;
import javax.persistence.InheritanceType;
import javax.persistence.Table;
import javax.persistence.Transient;


@EmbeddableSuperclass
public class AbstractObject implements Serializable {
   public static final long serialVersionUID = 1L;
   
   @Id(generate=GeneratorType.NONE)
   @Column(updatable = false)
   protected long id;
   
   @Column
   protected Date createDate = new Date();
   
   @Column
   protected Date updateDate = new Date();
   
   /**
    *
    */
   public AbstractObject() {
      super();
   }
   
   @Transient
   public String getIndexText() {
      return id + " " +  createDate + " " + updateDate;
   }
   

   @Transient
   public String toString() {
      StringBuffer buf = new StringBuffer();
      buf.append("create date: " + createDate);
      buf.append(", update date: " + updateDate);
      
      return buf.toString();
   }

   
   /**
    * @return Returns the createDate.
    */
   public Date getCreateDate() {
      return this.createDate;
   }

   
   /**
    * @param createDate The createDate to set.
    */
   public void setCreateDate(Date createDate) {
      this.createDate = createDate;
   }

   
   /**
    * @return Returns the updateDate.
    */
   public Date getUpdateDate() {
      return this.updateDate;
   }

   
   /**
    * @param updateDate The updateDate to set.
    */
   public void setUpdateDate(Date updateDate) {
      this.updateDate = updateDate;
   }

   
   /**
    * @return Returns the id.
    */
   public long getId() {
      return this.id;
   }

   
   /**
    * @param id The id to set.
    */
   public void setId(long id) {
      this.id = id;
   }

   

}

package mo.kudocs.framework.bean;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.NamedQueries;
import javax.persistence.NamedQuery;
import javax.persistence.PrimaryKeyJoinColumn;
import javax.persistence.Table;
import javax.persistence.Transient;


@Entity
@Table (name = "SYS_COUNTER")
@NamedQueries ( {
      @NamedQuery (name = "syscounter.findAll", queryString = "select sc from SystemCounter sc"),
      @NamedQuery (name = "syscounter.findByName", queryString = "select sc from SystemCounter sc where sc.name = :name")
})
public class SystemCounter extends AbstractObject {

   public static final long serialVersionUID = 1L;

   
   protected String name;

   protected long value;

   /**
    *
    */
   public SystemCounter() {
      super();
   }

   /**
    * @return Returns the name.
    */
   @PrimaryKeyJoinColumn
   @Column (nullable = false)
   public String getName() {
      return this.name;
   }

   /**
    * @param name
    *           The name to set.
    */
   public void setName(String name) {
      this.name = name;
   }

   /**
    * @return Returns the value.
    */
   @Column (nullable = false)
   public long getValue() {
      return this.value;
   }

   /**
    * @param value
    *           The value to set.
    */
   public void setValue(long value) {
      this.value = value;
   }

   @Transient
   public String getIndexText() {
      return name + " " + value;
   }

   @Transient
   public String toString() {
      StringBuffer buf = new StringBuffer();
      buf.append("name=" + name + ", value=" + value);

      return buf.toString();
   }

}

SEVERE: Building SessionFactory failed.
org.hibernate.AnnotationException: No identifier specified for entity: mo.kudocs.framework.bean.SystemCounter
   at org.hibernate.cfg.AnnotationBinder.bindClass(AnnotationBinder.java:645)
   at org.hibernate.cfg.AnnotationConfiguration.processArtifactsOfType(AnnotationConfiguration.java:256)
   at org.hibernate.cfg.AnnotationConfiguration.secondPassCompile(AnnotationConfiguration.java:191)
   at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1120)