Since no one has posted im going to assume I wasnt clear.  Here is my entity and PK classes.
Code:
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.IdClass;
import javax.persistence.Table;
import javax.portlet.ActionRequest;
import com.burris.ssapp.common.Input;
@Entity
@Table( name = "Items")
@IdClass( ItemPK.class )
public class Item {
   // Primary key
   private String supplierID;
   private String caseGTIN;
   
   // Other Database properties
   ...
   
   public Item() {
      
   }
   
   
   /**
    * Getters
    */
   
   @Id
   @Column( name = "SupplierID" )
   public String getSupplierID() {
      
      return this.supplierID;
   }
   
   @Id
   @Column( name = "CaseGTIN" )
   public String getCaseGTIN() {
      
      return this.caseGTIN;
   }
   // Other getters and setters
   ...
}
----------------------------------------------------------------------------------
import java.io.Serializable;
import javax.persistence.Embeddable;
@Embeddable
public class ItemPK implements Serializable {
   
   private static final long serialVersionUID = 9816235861478365L;
   private String supplierID;
   private String caseGTIN;
   
   public String getSupplierID() {
   
      return this.supplierID;
   }
   public String getCaseGTIN() {
   
      return this.caseGTIN;
   }
   
   public void setSupplierID( String supplierID ) {
   
      this.supplierID = supplierID;
   }
   
   public void setCaseGTIN( String caseGTIN ) {
   
      this.caseGTIN = caseGTIN;
   }
   
   public boolean equals( Object obj ) {
      
      // equals implementation
   }
   
   public int hashCode() {
      
           // hashCode implementation
   }
}
I think I have annotated them correctly, however, the primary key data does not show up in the ClassMetadata class.  Heres what I get for the metadata:
Code:
[0]   "_identifierMapper"   
[1]   "length"   
[2]   "status"   
[3]   "itemName"   
[4]   "width"   
[5]   "height"   
[6]   "itemDescription"   
[7]   "warehouseLocation"   
[8]   "storageAccount"   
[9]   "itemUOM"   
[10]   "brand"   
[11]   "itemClass"   
[12]   "owned"   
[13]   "packagePack"   
[14]   "packageSizeDescription"   
[15]   "packageUOM"   
[16]   "packageGTIN"   
[17]   "casePack"   
[18]   "caseSizeDescription"   
[19]   "caseUOM"   
[20]   "netWeight"   
[21]   "tare"   
[22]   "grossWeight"   
[23]   "weightUOM"   
[24]   "cube"   
[25]   "cubeUOM"   
[26]   "casesPerLayer"   
[27]   "layersPerPallet"   
[28]   "POUOM"   
[29]   "guaranteedSale"   
[30]   "freightAmount"   
[31]   "freightPercent"   
[32]   "freightUOM"   
[33]   "price"   
Notice how CaseGTIN and SupplierID are missing.  Any thoughts on how to gain access to these?  I have tried the getIdentifierPropertyName() but it returns null.  Im not sure if there is anything I can do with the Identifier mapper.