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tristpost
 Post subject: Tasble per subclass using discriminator problem...
PostPosted: Wed Feb 23, 2005 4:12 pm 
Newbie

Joined: Fri Jan 14, 2005 4:58 am
Posts: 10
I have tried following the example in the 3.0 documentation and fail to see what I have missed. All sugestions are appreciated!

Hibernate version: 3.0
Mapping documents:
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 2.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd">
<hibernate-mapping
package="org.hibernate.log">
<class name="LogData">
<id name="id" unsaved-value="-1">
<generator class="native"/>
</id>
<discriminator column="recordtype" type="string"/>
<property name="time" not-null="true"/>
<property name="sequenceNumber" not-null="true"/>
<many-to-one name="source" class="Source" not-null="true"/>
<many-to-one name="activity" class="JobRelatedActivity" not-null="false"/>
<property name="description" not-null="true"/>
<list name="arguments">
<key column="id"/>
<index column="arg" type="byte"/>
<element column="argument" type="string"/>
</list>
<subclass name="TracingData" discriminator-value="1">
<join table="tracingdata">
<property name="sourceClass"/>
<property name="sourceMethod"/>
<property name="threadId"/>
</join>
</subclass>
</class>
</hibernate-mapping>
Full stack trace of any exception that occurs:
org.hibernate.MappingException: Error reading resource: org/hibernate/log/LogData.hbm.xml
at org.hibernate.cfg.Configuration.addClass(Configuration.java:463)
at org.hibernate.log.HibernateSupport.<clinit>(HibernateSupport.java:16)
at org.hibernate.log.Main.createLogData(Main.java:21)
at org.hibernate.log.Main.main(Main.java:67)
Caused by: org.hibernate.MappingException: invalid mapping
at org.hibernate.cfg.Configuration.addInputStream(Configuration.java:391)
at org.hibernate.cfg.Configuration.addClass(Configuration.java:460)
... 3 more
Caused by: org.xml.sax.SAXParseException: Element type "join" must be declared.
at org.apache.xerces.util.ErrorHandlerWrapper.createSAXParseException(Unknown Source)
at org.apache.xerces.util.ErrorHandlerWrapper.error(Unknown Source)
at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
at org.apache.xerces.impl.dtd.XMLDTDValidator.handleStartElement(Unknown Source)
at org.apache.xerces.impl.dtd.XMLDTDValidator.startElement(Unknown Source)
at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
at org.dom4j.io.SAXReader.read(SAXReader.java:334)
at org.hibernate.cfg.Configuration.addInputStream(Configuration.java:390)
... 4 more
20:47:37,884 ERROR XMLHelper:57 - Error parsing XML: XML InputStream(23) Element type "join" must be declared.
20:47:37,894 ERROR XMLHelper:57 - Error parsing XML: XML InputStream(28) The content of element type "subclass" must match "(meta*,(property|many-to-one|one-to-one|component|dynamic-component|any|map|set|list|bag|idbag|array|primitive-array)*,subclass*)".
java.lang.NullPointerException
at org.hibernate.log.HibernateSupport.getSession(HibernateSupport.java:47)
at org.hibernate.log.Main.createLogData(Main.java:21)
at org.hibernate.log.Main.main(Main.java:67)
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tristpost
 Post subject: Found the problem myself....
PostPosted: Thu Feb 24, 2005 9:06 am 
Newbie

Joined: Fri Jan 14, 2005 4:58 am
Posts: 10
Used the wrong version of the DTD.....
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vxcoder
 Post subject:
PostPosted: Wed Mar 23, 2005 11:27 pm 
Newbie

Joined: Wed Mar 23, 2005 11:19 pm
Posts: 1
i am using the hibernate-mapping 3.0 .dtd
and also find this problem..
In hibernate's reference
Code:
<class name="Payment" table="PAYMENT">
    <id name="id" type="long" column="PAYMENT_ID">
        <generator class="native"/>
    </id>
    <discriminator column="PAYMENT_TYPE" type="string"/>
    <property name="amount" column="AMOUNT"/>
    ...
    <subclass name="CreditCardPayment" discriminator-value="CREDIT">
        <join table="CREDIT_PAYMENT">
            <property name="creditCardType" column="CCTYPE"/>
            ...
        </join>
    </subclass>
    <subclass name="CashPayment" discriminator-value="CASH">
        <join table="CASH_PAYMENT">
            ...
        </join>
    </subclass>
    <subclass name="ChequePayment" discriminator-value="CHEQUE">
        <join table="CHEQUE_PAYMENT" fetch="select">
            ...
        </join>
    </subclass>
</class>

is right?
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