Sure, but it might take us (sometimes) a few days to find the (private) time to look into things in detail. So please have some patience.
Werner Fabien Thouny wrote: > Hello, > > > > Nobody to help me, please ? > > > > Fabien > > > > De : Fabien Thouny [mailto:[email protected]] > Envoyé : vendredi 26 juin 2009 15:36 > À : [email protected] > Objet : [castor-user] Problems with use of identity and reference fields > > > > Hello, > > > > I have some problems to use the "reference" field in the class element. > > > > Some more details on a simple project to test and show the problem : > > I have a simple class named "ClassA" which has only one attribute "id" like > this : > > > > public class ClassA { > > private int id; > > public final int getId () { return id; } > > public final void setId (final int id) { this.id = id; } > > public String toString() { return ("A : " + getId()); } > > } > > > > Two others class are referencing the same object ClassA : > > public class Test { > > private ClassA classA; > > public void setClassA(ClassA classA) { this.classA = classA; } > > public ClassA getClassA() { return classA; } > > public String toString () { return ((classA == null)? null > : classA.toString());} > > } > > > > public class TestReference { > > private ClassA classA; > > public void setClassA(ClassA classA) { this.classA = classA; } > > public ClassA getClassA() { return classA; } > > public String toString () { return ((classA == null)? null > : classA.toString()); } > > } > > You can notice that these two classes have exactly the same code. > > > > Finally there is the main object named "TestConteneur" which references an > instance of each two previous classes. > > public class TestConteneur { > > private Test test; > > private TestReference testRef; > > public void setTest(Test test) { this.test = test; } > > public Test getTest() { return test; } > > public void setTestRef(TestReference testRef) { this.testRef = testRef; } > > public TestReference getTestRef() { return testRef; } > > public String toString() { return (test + "\nref : " + testRef); } > > } > > > > Now the mapping file : > > <?xml version="1.0" encoding="UTF-8"?> > > <!DOCTYPE mapping PUBLIC "-//EXOLAB/Castor Mapping DTD Version 1.0//EN" > > "http://castor.exolab.org/mapping.dtd";> > > <mapping> > > <description>Test mapping</description> > > > > <class name="test.ClassA" identity="id"> > > <field name="id" type="integer"> > > <bind-xml name="id" node="attribute"/> > > </field> > > </class> > > <class name="test.TestReference"> > > <field name="classA" > > type="test.ClassA"> > > <bind-xml name="ARef" reference="true"/> > > </field> > > </class> > > <class name="test.Test"> > > <field name="classA" > > type="test.ClassA"> > > <bind-xml name="A"/> > > </field> > > </class> > > <class name="test.TestConteneur"> > > <map-to xml="Conteneur"/> > > <field name="test" > > type="test.Test"> > > <bind-xml name="Test"/> > > </field> > > <field name="testRef" > > type="test.TestReference"> > > <bind-xml name="TestRef"/> > > </field> > > </class> > > </mapping> > > > > You can notice that I want a reference on the object classA in the class > TestReference. > > > > So when I marshal a TestConteneur object, I got this : > > <?xml version="1.0" encoding="UTF-8"?> > > <Conteneur> > > <Test> > > <A id="1"/> > > </Test> > > <TestRef> > > <ARef>1</ARef> > > </TestRef> > > </Conteneur> > > > > Fine ! > > > > But when I want to unmarshall, (with the same mapping file, I use XMLContext > to create my marshallers and unmarshallers ;-)) > > > > I have an error : > > org.exolab.castor.xml.MarshalException: The following exception occured while > validating field: testRef of class: test.TestConteneur: The object associated > with IDREF "A : 1" of type class test.ClassA has no ID!{File: [not > available]; line: 9; column: 13} > > at > org.exolab.castor.xml.Unmarshaller.convertSAXExceptionToMarshalException(Unmarshaller.java:794) > > at org.exolab.castor.xml.Unmarshaller.unmarshal(Unmarshaller.java:760) > > at org.exolab.castor.xml.Unmarshaller.unmarshal(Unmarshaller.java:626) > > at test.TestMain.main(TestMain.java:77) > > > > I don't know why, but it seems that the id of the ClassA object is not > correctly treated. > > > > What did I forget ? Can you help me, please? > > > > Thanks, > > > > Fabien > > > > P.S : my version of Castor is the 1.3. > > P.P.S. : sorry for my poor and bad English. > > --------------------------------------------------------------------- To unsubscribe from this list, please visit: http://xircles.codehaus.org/manage_email
