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abulhaaris
 Post subject: Assertion failed in Hibernate
PostPosted: Fri Dec 05, 2003 7:32 am 
Newbie

Joined: Wed Aug 27, 2003 2:23 am
Posts: 5
Location: Lahore, Pakistan
I upgraded to 2.1rc1 and ended up getting the following error:

Code:
     [java] ERROR [PoolThread-0] (AssertionFailure.java:20) - An AssertionFailure occured - this may indicate a bug in Hibernate
     [java] net.sf.hibernate.AssertionFailure: null identifier
     [java]     at net.sf.hibernate.engine.Key.<init>(Key.java:22)
     [java]     at net.sf.hibernate.engine.Key.<init>(Key.java:32)
     [java]     at net.sf.hibernate.impl.SessionImpl.doUpdateMutable(SessionImpl.java:1371)
     [java]     at net.sf.hibernate.impl.SessionImpl.doUpdate(SessionImpl.java:1398)
     [java]     at net.sf.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:1322)
     [java]     at net.sf.hibernate.engine.Cascades$4.cascade(Cascades.java:114)
     [java]     at net.sf.hibernate.engine.Cascades.cascade(Cascades.java:436)
     [java]     at net.sf.hibernate.engine.Cascades.cascadeCollection(Cascades.java:526)
     [java]     at net.sf.hibernate.engine.Cascades.cascade(Cascades.java:452)
     [java]     at net.sf.hibernate.engine.Cascades.cascade(Cascades.java:503)
     [java]     at net.sf.hibernate.impl.SessionImpl.doSave(SessionImpl.java:890)
     [java]     at net.sf.hibernate.impl.SessionImpl.doSave(SessionImpl.java:815)
     [java]     at net.sf.hibernate.impl.SessionImpl.saveWithGeneratedIdentifier(SessionImpl.java:738)
     [java]     at net.sf.hibernate.impl.SessionImpl.save(SessionImpl.java:715)



My application creates an instance of class RFQ, adds elements to the RFQSupplier and RFQRequisitionItem bags and calls session.save(newRFO). Hibernate 2.1beta6 would persist the object and its collections; 2.1rc1 generates the exception. I used hbm2java to generate the class files. I made no change to the generated java code; the hashCode and equals methods are the ones autogenerated by hbm2java.

I am using java 1.4.2_02-b03, cglib2 and all the .jar files in hibernate-2.1/lib.

Here are the hbm files:

Code:
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
   "-//Hibernate/Hibernate Mapping DTD//EN"
   "http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd">
<hibernate-mapping schema="CPO2">
<class name="com.cgc.esd.pages.cinv.RFQ" table="CPO_RFQ">

   <id name="id" column="RFQ_ID" type="java.lang.Long" unsaved-value="null">
             <generator class="native">
               <param name ="sequence">CPO_RFQ_S</param>
             </generator>
   </id>

      <timestamp  name="lastUpdate" column="LAST_UPDATE_DATE"></timestamp>

        <property name="inventoryClass" column="INV_CLASS" type="string"/>
        <property name="rfqTypeLookup" column="RFQ_TYPE_LKP" type="string"/>
        <property name="itemClass" column="ITEM_CLASS" type="string"/>
        <property name="rfqCreationDate" column="RFQ_CREATION_DATE" type="timestamp"/>
        <property name="shipToLookup" column="SHIP_TO_LKP" type="string"/>
        <property name="billToLookup" column="BILL_TO_LKP" type="string"/>
        <property name="statusLookup" column="RFQ_STATUS_LKP" type="string"/>
        <property name="shipViaLookup" column="SHIP_VIA_LKP" type="string"/>
        <property name="replyViaLookup" column="REPLY_VIA_LKP" type="string"/>
        <property name="shipmentTermsLookup" column="SHIPMENT_TERMS_LKP" type="string"/>
        <property name="dueDate" column="DUE_DATE" type="timestamp"/>
        <property name="isFreightIncluded" column="IS_FREIGHT_INCLUDED" type="string"/>
        <property name="remarks" column="REMARKS" type="string"/>
        <property name="actorId" column="ACTOR_ID" type="java.lang.Long"/>
        <property name="userId" column="USER_ID" type="java.lang.Long"/>

        <property name="createByUserId" column="CREATED_BY" type="java.lang.Long"/>
        <property name="creationDate" column="CREATION_DATE" type="timestamp"/>
        <property name="lastUpdatedByUserId" column="LAST_UPDATED_BY" type="java.lang.Long"/>

        <bag name="rfqRequisitionItems" table="CPO_RFQ_REQN_ITEMS"
              lazy="true" cascade="save-update" inverse="true">
          <key column="RFQ_ID"/>
     <one-to-many class="com.cgc.esd.pages.cinv.RFQRequisitionItem"/>
        </bag>

        <bag name="rfqSuppliers" table="CPO_RFQ_SUPPLIERS"
              lazy="true" cascade="save-update" inverse="true">
          <key column="RFQ_ID"/>
     <one-to-many class="com.cgc.esd.pages.cinv.RFQSupplier"/>
        </bag>

</class>

</hibernate-mapping>





Code:
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
   "-//Hibernate/Hibernate Mapping DTD//EN"
   "http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd">

<hibernate-mapping schema="CPO2">
<class name="com.cgc.esd.pages.cinv.RFQRequisitionItem" table="CPO_RFQ_REQN_ITEMS">

   <id name="id" column="RFQ_REQN_ITEM_ID" type="java.lang.Long" unsaved-value="null">
             <generator class="native">
               <param name ="sequence">CPO_RFQ_REQN_ITEMS_S</param>
             </generator>
   </id>

        <timestamp  name="lastUpdate" column="LAST_UPDATE_DATE"></timestamp>

        <property name="weight"       column="WGT" type="java.lang.Long"/>
        <property name="isWithSample" column="IS_WITH_SAMPLE" type="string"/>
        <property name="packingInformation" column="PACKING_INFO" type="string"/>
        <property name="resourcesRequired" column="RESOURCES_REQD" type="java.lang.Long"/>
        <property name="remarks" column="REMARKS" type="string"/>

        <property name="createByUserId" column="CREATED_BY" type="java.lang.Long"/>
        <property name="creationDate" column="CREATION_DATE" type="timestamp"/>
        <property name="lastUpdatedByUserId" column="LAST_UPDATED_BY" type="java.lang.Long"/>

        <!-- many to one with RFQ -->
        <many-to-one name="rfq"
               class="com.cgc.esd.pages.cinv.RFQ"
               column="RFQ_ID" not-null="true"/>

        <!-- many to one with requisitionItem -->
        <many-to-one name="requisitionItem"
               class="com.cgc.esd.pages.cinv.RequisitionItem"
               column="REQN_ITEM_ID"/>

</class>

</hibernate-mapping>





Code:
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
   "-//Hibernate/Hibernate Mapping DTD//EN"
   "http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd">

<hibernate-mapping schema="CPO2">
<class name="com.cgc.esd.pages.cinv.RFQSupplier" table="CPO_RFQ_SUPPLIERS">

   <id name="id" column="RFQ_SUPL_ID" type="java.lang.Long" unsaved-value="null">
          <generator class="native">
            <param name ="sequence">CPO_RFQ_SUPPLIERS_S</param>
          </generator>
   </id>

        <timestamp  name="lastUpdate" column="LAST_UPDATE_DATE"></timestamp>

        <property name="createByUserId" column="CREATED_BY" type="java.lang.Long"/>
        <property name="creationDate" column="CREATION_DATE" type="timestamp"/>
        <property name="lastUpdatedByUserId" column="LAST_UPDATED_BY" type="java.lang.Long"/>

        <!-- many to one with RFQ -->
        <many-to-one name="parentRfq"
               class="com.cgc.esd.pages.cinv.RFQ"
               column="RFQ_ID" not-null="true"/>

        <!-- many to one with Supplier -->
        <many-to-one name="supplier"
               class="com.cgc.esd.pages.cinv.Supplier"
               column="SUPL_ID" cascade="none" />

</class>

</hibernate-mapping>
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gavin
 Post subject:
PostPosted: Fri Dec 05, 2003 7:40 am 
Hibernate Team
Hibernate Team

Joined: Tue Aug 26, 2003 12:50 pm
Posts: 5130
Location: Melbourne, Australia
Apparently your timestamps are non-null, so 2.1rc1 thinks that the objects are detached. I will make a little change to tolerate this, but why on earth are you setting the timestamp property of a newly instantiated object?
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abulhaaris
 Post subject:
PostPosted: Fri Dec 05, 2003 3:31 pm 
Newbie

Joined: Wed Aug 27, 2003 2:23 am
Posts: 5
Location: Lahore, Pakistan
Yes, the timestamp is not null. I assign the value returned by java.util.Date() to the timestamp property of the object.

The underlying Oracle db tables belong to Oracle Financials applications which set the CREATE_DATE and LAST_UPDATE_DATE columns whenever a new tuple is added or an existing tuple is modified. My application is web-based. I have to set the CREATE_DATE and LAST_UPDATE_DATE columns when I persist newly created objects; I do this by assigning Date() values to the appropriate properties of the newly created objects being persisted. My reasoning was that while I have loaded an object from the oracle tables, some Oracle Financial application might update the tuple underneath. This is will be signified by a change in the LAST_UPDATE_DATE value. My understanding of <timestamp> is that it would allow me detect such a circumstance. I may have gotten it wrong; if there is a better strategy to tackle this, please recommend.

Sohail Aslam
techlogix.com
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gavin
 Post subject:
PostPosted: Fri Dec 05, 2003 9:44 pm 
Hibernate Team
Hibernate Team

Joined: Tue Aug 26, 2003 12:50 pm
Posts: 5130
Location: Melbourne, Australia
There is no point in ever assigning a valut to a <timestamp> property because Hibernate regenerates the value every time the object is persisted.
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abulhaaris
 Post subject:
PostPosted: Sat Dec 06, 2003 5:43 am 
Newbie

Joined: Wed Aug 27, 2003 2:23 am
Posts: 5
Location: Lahore, Pakistan
Thanks for the clarification. I will make the change in my code.
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