Probloem with cmr field

Question

Hi friends i am doing one small project using weblogic,ejb and mysql
When i try to retirive values from the table using CMR i am getting the error of
bolderrorAttempt to serialize a collection that implements a cmr-field. Collections managed by the CMP RDBMS persistence manager may not be passed directly to a remote client.*bold*
My EJBQL is
bold
**@ejb.finder
* query="SELECT OBJECT(a) FROM NeworderSCHEMA as a WHERE a.po_no = ?1"
* signature="java.util.Collection findByPo_noCMR(java.lang.String po_no)" bold
My Session Bean who is calling this is NeworderBean
bold
public java.util.Collection getAllPendingOrdersnew()
               throws javax.naming.NamingException, javax.ejb.FinderException {
          java.util.Collection pendorders = new java.util.ArrayList(); //to return all pending orders to web-client
          java.util.ArrayList pendorder = null; //to put one pending order attributes to collection of pendorders
          NeworderLocalHome home = NeworderUtil.getLocalHome();
          NeworderLocal localObject = null;
          java.util.Collection c = home.findByPo_noCMR("91");
          //loop to take one pendingorderLocal at a time and populate pedningorders collection
          for(java.util.Iterator i = c.iterator(); i.hasNext(); ){
               //populating the arraylist with customer attributes
               localObject = (NeworderLocal) i.next();
               pendorder = new java.util.ArrayList();
               pendorder.add(localObject.getPrimaryKey()); //index 0 -- stores the po_no
               pendorder.add(localObject.getPo_date()); //index 1 -- stores the po_date
               pendorder.add(localObject.getPo_status());//index 2 -- stores the po_status
               pendorder.add(localObject.getPo_suppcode()); //index 3 -- stores the supplier code
               pendorder.add(localObject.getUserid());//index 4 -- stores the user id
               pendorder.add(localObject.getTimestamp());//index 5 -- stores the created date
               pendorder.add(localObject.getItems());//for order detail table
               //one customer data is filled. so, add this to customers arraylist
               pendorders.add(pendorder);
          //return the collection of all customers
          return pendorders;
     }*bold*
Please help me

Answer 1

When i give with out @ejb-interface i am getting error of
Exception:weblogic.management.ApplicationException: Prepare failed. Task Id = 29
     Module: New_OrderEJB.jar     Error: [EJB:011024]The XML parser encountered an error in your deployment descriptor. Please ensure that your deployment descriptor corresponds to the format in the DTD. The error was:
Error parsing file 'META-INF/ejb-jar.xml' at line: 247 column: 26. XML document structures must start and end within the same entity..
ejb-jar.xml file content is
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans 2.0//EN" "http://java.sun.com/dtd/ejb-jar_2_0.dtd">
<ejb-jar id="ejb-jar_1">
<description><![CDATA[New_OrderEJB generated by eclipse wtp xdoclet extension.]]></description>
<display-name>New_OrderEJB</display-name>
<enterprise-beans>
<!-- Session Beans -->
<session id="Session_Head">
<description><![CDATA[An EJB named Head]]></description>
<display-name>Head</display-name>
<ejb-name>Head</ejb-name>
<home>order.headsess.HeadHome</home>
<remote>order.headsess.Head</remote>
<local-home>order.headsess.HeadLocalHome</local-home>
<local>order.headsess.HeadLocal</local>
<ejb-class>order.headsess.HeadSession</ejb-class>
<session-type>Stateless</session-type>
<transaction-type>Container</transaction-type>
</session>
<!--
To add session beans that you have deployment descriptor info for, add
a file to your XDoclet merge directory called session-beans.xml that contains
the <session></session> markup for those beans.
-->
<!-- Entity Beans -->
<entity id="ContainerManagedEntity_Neworder">
<description><![CDATA[<!-- begin-xdoclet-definition -->]]></description>
<ejb-name>Neworder</ejb-name>
<home>order.headentity.NeworderHome</home>
<remote>order.headentity.Neworder</remote>
<local-home>order.headentity.NeworderLocalHome</local-home>
<local>order.headentity.NeworderLocal</local>
<ejb-class>order.headentity.NeworderCMP</ejb-class>
<persistence-type>Container</persistence-type>
<prim-key-class>java.lang.String</prim-key-class>
<reentrant>False</reentrant>
<cmp-version>2.x</cmp-version>
<abstract-schema-name>NeworderSCHEMA</abstract-schema-name>
<cmp-field id="CMPAttribute_1">
<description><![CDATA[<!-- begin-user-doc --> CMP Field po_no Returns the po_no]]></description>
<field-name>po_no</field-name>
</cmp-field>
<cmp-field id="CMPAttribute_2">
<description><![CDATA[<!-- begin-user-doc --> CMP Field po_date Returns the po_date]]></description>
<field-name>po_date</field-name>
</cmp-field>
<cmp-field id="CMPAttribute_3">
<description><![CDATA[<!-- begin-user-doc --> CMP Field po_suppcode Returns the po_suppcode]]></description>
<field-name>po_suppcode</field-name>
</cmp-field>
<cmp-field id="CMPAttribute_4">
<description><![CDATA[<!-- begin-user-doc --> CMP Field po_reference_no Returns the po_reference_no]]></description>
<field-name>po_reference_no</field-name>
</cmp-field>
<cmp-field id="CMPAttribute_5">
<description><![CDATA[<!-- begin-user-doc --> CMP Field userid Returns the userid]]></description>
<field-name>userid</field-name>
</cmp-field>
<cmp-field id="CMPAttribute_6">
<description><![CDATA[<!-- begin-user-doc --> CMP Field timestamp Returns the timestamp]]></description>
<field-name>timestamp</field-name>
</cmp-field>
<cmp-field id="CMPAttribute_7">
<description><![CDATA[<!-- begin-user-doc --> CMP Field approved_by Returns the approved_by]]></description>
<field-name>approved_by</field-name>
</cmp-field>
<cmp-field id="CMPAttribute_8">
<description><![CDATA[<!-- begin-user-doc --> CMP Field po_status Returns the po_status]]></description>
<field-name>po_status</field-name>
</cmp-field>
<primkey-field>po_no</primkey-field>
<query>
<query-method>
<method-name>findAll</method-name>
<method-params>
</method-params>
</query-method>
<ejb-ql><![CDATA[SELECT OBJECT(a) FROM NeworderSCHEMA as a]]></ejb-ql>
</query>
<query>
<query-method>
<method-name>findByStatus</method-name>
<method-params>
<method-param>java.lang.String</method-param>
</method-params>
</query-method>
<ejb-ql><![CDATA[SELECT OBJECT(a) FROM NeworderSCHEMA as a WHERE a.po_status = ?1]]></ejb-ql>
</query>
<query>
<query-method>
<method-name>findByPo_no</method-name>
<method-params>
<method-param>java.lang.String</method-param>
</method-params>
</query-method>
<ejb-ql><![CDATA[SELECT OBJECT(a) FROM NeworderSCHEMA as a WHERE a.po_no = ?1]]></ejb-ql>
</query>
<query>
<query-method>
<method-name>findByPo_noCMR</method-name>
<method-params>
<method-param>java.lang.String</method-param>
</method-params>
</query-method>
<ejb-ql><![CDATA[SELECT OBJECT(a) FROM NeworderSCHEMA as a WHERE a.po_no = ?1]]></ejb-ql>
</query>
     <!-- Write a file named ejb-finders-NeworderBean.xml if you want to define extra finders. -->
</entity>
<entity id="ContainerManagedEntity_OrderDetail">
<description><![CDATA[<!-- begin-xdoclet-definition -->]]></description>
<ejb-name>OrderDetail</ejb-name>
<home>order.detailentity.OrderDetailHome</home>
<remote>order.detailentity.OrderDetail</remote>
<local-home>order.detailentity.OrderDetailLocalHome</local-home>
<local>order.detailentity.OrderDetailLocal</local>
<ejb-class>order.detailentity.OrderDetailCMP</ejb-class>
<persistence-type>Container</persistence-type>
<prim-key-class>java.lang.Integer</prim-key-class>
<reentrant>False</reentrant>
<cmp-version>2.x</cmp-version>
<abstract-schema-name>OrderDetailSCHEMA</abstract-schema-name>
<cmp-field id="CMPAttribute_9">
<description><![CDATA[<!-- begin-user-doc --> CMP Field serial_no Returns the serial_no]]></description>
<field-name>serial_no</field-name>
</cmp-field>
<cmp-field id="CMPAttribute_10">
<description><![CDATA[<!-- begin-user-doc --> CMP Field po_no Returns the po_no]]></description>
<field-name>po_no</field-name>
</cmp-field>
<cmp-field id="CMPAttribute_11">
<description><![CDATA[<!-- begin-user-doc --> CMP Field model_code Returns the model_code]]></description>
<field-name>model_code</field-name>
</cmp-field>
<cmp-field id="CMPAttribute_12">
<description><![CDATA[<!-- begin-user-doc --> CMP Field color_code Returns the color_code]]></description>
<field-name>color_code</field-name>
</cmp-field>
<cmp-field id="CMPAttribute_13">
<description><![CDATA[<!-- begin-user-doc --> CMP Field order_qty Returns the order_qty]]></description>
<field-name>order_qty</field-name>
</cmp-field>
<cmp-field id="CMPAttribute_14">
<description><![CDATA[<!-- begin-user-doc --> CMP Field prod_yr Returns the prod_yr]]></description>
<field-name>prod_yr</field-name>
</cmp-field>
<cmp-field id="CMPAttribute_15">
<description><![CDATA[<!-- begin-user-doc --> CMP Field prod_mth Returns the prod_mth]]></description>
<field-name>prod_mth</field-name>
</cmp-field>
<cmp-field id="CMPAttribute_16">
<description><![CDATA[<!-- begin-user-doc --> CMP Field recd_qty Returns the recd_qty]]></description>
<field-name>recd_qty</field-name>
</cmp-field>
<primkey-field>serial_no</primkey-field>
<query>
<query-method>
<method-name>findAll</method-name>
<method-params>
</method-params>
</query-method>
<ejb-ql><![CDATA[SELECT OBJECT(a) FROM OrderDetailSCHEMA as a]]></ejb-ql>
</query>
     <!-- Write a file named ejb-finders-OrderDetailBean.xml if you want to define extra finders. -->
</entity>
<!--
To add entity beans that you have deployment descriptor info for, add
a file to your XDoclet merge directory called entity-beans.xml that contains
the <entity></entity> markup for those beans.
-->
<!-- Message Driven Beans -->
<!--
To add message driven beans that you have deployment descriptor info for, add
a file to your XDoclet merge directory called message-driven-beans.xml that contains
the <message-driven></message-driven> markup for those beans.
-->
</enterprise-beans>
<!-- Relationships -->
<relationships id="Relationships_1">
<ejb-relation id="EJBRelation_1">
<ejb-relation-name>Neworder</ejb-relation-name>
<ejb-relationship-role id="EJBRelationshipRole_1">
<ejb-relationship-role-name>Order-contains-Items</ejb-relationship-role-name>
<multiplicity>One</multiplicity>
<relationship-role-source id="RoleSource_1">
<ejb-name>Neworder</ejb-name>
</relationship-role-source>
<cmr-field id="CMRField_1">
<cmr-field-name>items</cmr-field-name>
<cmr-field-type>java.util.Collection</cmr-field-type>
</cmr-field>
</ejb-relationship-role>
<ejb-relationship-role id="EJBRelationshipRole_2">
<ejb-relationship-role-name>item-contained-in-order</ejb-relationship-role-name>
<multiplicity>Many</multiplicity>
<cascade-delete/>
<relationship-role-source id="RoleSource_2">
<ejb-name>OrderDetail</ejb-name>
</relationship-role-source>
</ejb-relationship-role>
</ejb-relation>
<ejb-relation id="EJBRelation_2">
<ejb-relation-name>Order-Items</ejb-relation-name>
<ejb-relationship-role id="EJBRelationshipRole_3">
<ejb-relationship-role-name>Order-has-Items</ejb-relationship-role-name>
<multiplicity>One</multiplicity>
<relationship-role-source id="RoleSource_3">
<ejb-name>Neworder</ejb-name>
</relationship-role-source>
<cmr-field id="CMRField_2">
<cmr-field-name>itemValue</cmr-field-name>
<cmr-field-type>java.util.Collection</cmr-field-type>
</cmr-field>
</ejb-relationship-role>
<ejb-relationship-role id="EJBRelationshipRole_4">
<multiplicity>Many</multiplicity>
<relationship-role-source id="RoleSource_4">
<ejb-name>
once again thank you