Re: [castor-user] a sequence of objects can be serialized but not deserialized

[Werner Guttmann]

Mark,
Mark Chamness wrote:
Hi,
Castor appears to require a root element to unmarshall objects.  How would it 
handle a continuous stream of objects over a network?
By the way, is the website down?  http://www.castor.org/
http://castor.codehaus.org should do the trick for the time being.
Werner
-mark
-----Original Message-----
From: Mark Chamness [mailto:[EMAIL PROTECTED] 
Sent: Thursday, May 12, 2005 9:11 AM
To: user@castor.codehaus.org
Subject: [castor-user] a sequence of objects can be serialized but not deserialized

While sequence of objects can be serialized to a stream, they can't be 
deserialized.  The motivation for this comes from experience
with java serialization:
oos.writeInt(12345);
oos.writeObject("Today");
oos.writeObject(new Date());
and then...
int i = ois.readInt();
String today = (String) ois.readObject();
Date date = (Date) ois.readObject();
The error message for the following test case is:
Parsing Error : The markup in the document following the root element must be 
well-formed.
public void testMarshalMultipleObjects() throws Exception
{
        TestObject testObject1 = new TestObject();
        testObject1.testString = "test one";
        TestObject testObject2 = new TestObject();
        testObject2.testString = "test two";
        StringWriter stringWriter = new StringWriter();
        Marshaller marshaller = new Marshaller(stringWriter);
        marshaller.setSupressXMLDeclaration(true); //doesn't matter
        marshaller.marshal(testObject1);
        marshaller.marshal(testObject2);
        StringReader stringReader = new StringReader(stringWriter.toString());
        Unmarshaller unmarshaller = new Unmarshaller(TestObject.class);
        TestObject newTestObject1 = (TestObject) 
unmarshaller.unmarshal(stringReader);//fails
        TestObject newTestObject2 = (TestObject) 
unmarshaller.unmarshal(stringReader);
        Assert.assertEquals(testObject1.testString, newTestObject1.testString);
        Assert.assertEquals(testObject2.testString, newTestObject2.testString);
}
public class TestObject
{
        public String testString;
        public TestObject()
        {
        }
        public String getTestString()
        {
                return testString;
        }
        public void setTestString(String testString)
        {
                this.testString = testString;
        }
}