hello I am trying Middlegen-Hibernate-r3, I want to use hbm2java to generate the java file for Flight.hbm.xm,Person.hbm.xml,Reservation.hbm.xml, but I am getting the following errors.


panic-if-driver-not-present:

middlegen:
[echo] Class path = C:\Middlegen-Hibernate-r3\Middlegen-Hibernate-r3
[middlegen] Database URL:jdbc:hsqldb:C:\Middlegen-Hibernate-r3\Middlegen-Hibernate-r3/build/hsqldb/airline
[middlegen] No <table> elements specified. Reading all tables. This might take a while...
[middlegen] ********************************************************
[middlegen] * CTRL-Click relations to modify their cardinality *
[middlegen] * SHIFT-Click relations to modify their directionality *
[middlegen] ********************************************************
[middlegen] Updated preferences in C:\Middlegen-Hibernate-r3\Middlegen-Hibernate-r3\src\airline-prefs.properties

hbm2java:
[java] (hbm2java.CodeGenerator 43 ) Error parsing XML: file:/C:/Middlegen-Hibernate-r3/Middlegen-Hibernate-r3/build/gen-src/airline
/hibernate/Reservation.hbm.xml(47)
[java] org.xml.sax.SAXParseException: The content of element type "composite-id" must match "(key-property|key-many-to-one)+".
[java] at weblogic.apache.xerces.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:232)
[java] at weblogic.apache.xerces.util.ErrorHandlerWrapper.error(ErrorHandlerWrapper.java:173)
[java] at weblogic.apache.xerces.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:371)
[java] at weblogic.apache.xerces.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:305)
[java] at weblogic.apache.xerces.impl.dtd.XMLDTDValidator.handleEndElement(XMLDTDValidator.java:1918)
[java] at weblogic.apache.xerces.impl.dtd.XMLDTDValidator.endElement(XMLDTDValidator.java:851)
[java] at weblogic.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanEndElement(XMLDocumentFragmentScannerImpl.java:1008)
[java] at weblogic.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(XMLDocumentFragmentScannerImpl.java:1
469)
[java] at weblogic.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:329)
[java] at weblogic.apache.xerces.parsers.DTDConfiguration.parse(DTDConfiguration.java:525)
[java] at weblogic.apache.xerces.parsers.DTDConfiguration.parse(DTDConfiguration.java:581)
[java] at weblogic.apache.xerces.parsers.XMLParser.parse(XMLParser.java:152)
[java] at weblogic.apache.xerces.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1175)
[java] at weblogic.xml.jaxp.WebLogicXMLReader.parse(WebLogicXMLReader.java:135)
[java] at weblogic.xml.jaxp.RegistryXMLReader.parse(RegistryXMLReader.java:138)
[java] at org.jdom.input.SAXBuilder.build(SAXBuilder.java:354)
[java] at org.jdom.input.SAXBuilder.build(SAXBuilder.java:707)
[java] at org.jdom.input.SAXBuilder.build(SAXBuilder.java:689)
[java] at net.sf.hibernate.tool.hbm2java.CodeGenerator.main(CodeGenerator.java:93)
[java] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[java] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
[java] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
[java] at java.lang.reflect.Method.invoke(Method.java:324)
[java] at org.apache.tools.ant.taskdefs.ExecuteJava.run(ExecuteJava.java:208)
[java] at org.apache.tools.ant.taskdefs.ExecuteJava.execute(ExecuteJava.java:150)
[java] at org.apache.tools.ant.taskdefs.Java.run(Java.java:443)
[java] at org.apache.tools.ant.taskdefs.Java.executeJava(Java.java:163)
[java] at org.apache.tools.ant.taskdefs.Java.execute(Java.java:108)
[java] at org.apache.tools.ant.Task.perform(Task.java:341)
[java] at org.apache.tools.ant.Target.execute(Target.java:309)
[java] at org.apache.tools.ant.Target.performTasks(Target.java:336)
[java] at org.apache.tools.ant.Project.executeTarget(Project.java:1339)
[java] at org.apache.tools.ant.Project.executeTargets(Project.java:1255)
[java] at org.apache.tools.ant.Main.runBuild(Main.java:609)
[java] at org.apache.tools.ant.Main.start(Main.java:196)
[java] at org.apache.tools.ant.Main.main(Main.java:235)

compile-hibernate:
[javac] Compiling 3 source files to C:\Middlegen-Hibernate-r3\Middlegen-Hibernate-r3\build\classes

all:

BUILD SUCCESSFUL
Total time: 31 seconds
C:\Middlegen-Hibernate-r3\Middlegen-Hibernate-r3>

This is likely to be similar to you other posting about weblogic although maybe you sorted it as you posted this one first. I need to see the mapping file(s) to provide futher information.

I had the same problem. Apparently, the hbm2java task is validating the hbm.xml file against the dtd shipped with hibernate, not against http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtdincluded in the DOCTYPE of each hbm.xml file. Running the validate task from ant has no errors, so I am thinking this task validates against the updated copy for web.

Anyway, thanks to an anonymous comment, I was able to fix it by downloading that file (actually the dtd from cvs at http://cvs.sourceforge.net/viewcvs.py/*checkout*/hibernate/Hibernate2/src/net/sf/hibernate/hibernate-mapping-2.0.dtd?rev=1.34.2.24
)
and replacing the old dtd in the hibernate2.jar. After rejarring, everything then worked. See my write up at http://www.mjwall.com/node/view/138

--Mike

This is in the FAQ.

oh ... perhaps I misunderstood you ...

Sorry, I am a little confused about you comment Mr King. Which FAQ's? Do mean the overall hibernate FAQ located at http://www.hibernate.org/14.html, or do you mean the page about Middlegen for Hibernate at http://www.hibernate.org/98.html. I mentioned in my comments on my weblog I went back and did see the "NOTE: Post hibernate 2.1beta5 DTD is required to validate correctly for all possible XDoclet meta tags." I should have mentioned that in the forum post.

What I was having trouble with was that the validate task in ant validated correctly, but the hbm2java task did not. Taking a look at the source for hibernate, I tried to figure out why this happens. The ant validate task calls the xmlvalidate task without a nested dtd entity, so I think it uses the internally defined dtd in the hbm.xml file, which is a current version at the given URL. The hbm2java task looks like it uses a custom DTDEntityResolver from the net.sf.hibernate.util package. I couldn't find any apidocs for it with the rest of the apidocs in the 2.0.3 distribution, but I did find the source. Since there is a hibernate-mapping-2.0.dtd in the hibernate2.jar which is on the classpath, it appears the DTDEntityResolver uses that one, which is an older version. I probably wouldn't have had this problem had I used the 2.1 beta version.

Thanks for you time. I am very new to hibernate, and only got on this forum today. I appreciate all of your and everyone else's great work

--Mike

There have been a few people trapped by this. Glad you found it documented on the Wiki. There are two areas that will cause the problem. The main one is if you are using optimistic locking and XDoclet generation. The next version will have more XDoclet markup for Compoundkeys but it will need the 2.1b6 DTD which is why I am not rushing to get this done.

My problem is solved i have download the new hinernate version,then build it then put it on my middlegen lib.
thanks a lot for your help great forum.