Sorry Martin, I meant an ObjectInputStream and ObjectOutputStream
combination
In a servlet you can open the output stream then add objects to it....on the
other end you can receive them until the stream is empty. It uses
Serialization/Deserialization.
<snip>
.....
Iterator it = coll.getIterator();
ObjectOutputStream oos = new ObjectOutputStream(new
BufferedOutputStream(response.getOutputStream()));
while (it.hasNext())
{
Object obj = it.next();
oos.writeObject(obj);
}
oos.flush();
oos.close();
</snip>
-----Original Message-----
From: Martin Gainty [mailto:[EMAIL PROTECTED]
Sent: 18 May 2005 14:38
To: [email protected]
Subject: Re: [castor-user] a sequence of objects can be serialized but
not deserialized
Jeremy-
Coming up empty for documentation and or references using ObjectStream
*outside of legacy applet scenarios*
Could you be more specific on where to find doc and perhaps an example?
Thanks,
Martin-
----- Original Message -----
From: "Jez Nicholson" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Wednesday, May 18, 2005 4:17 AM
Subject: RE: [castor-user] a sequence of objects can be serialized but not
deserialized
> Not sure whether this is the reason for Mark, but I'm doing something
> similar and had problems with firewalls when using sockets, whereas an
> ObjectStream can easily be returned from a servlet.
>
> -----Original Message-----
> From: Martin Gainty [mailto:[EMAIL PROTECTED]
> Sent: 17 May 2005 20:11
> To: [email protected]
> Subject: Re: [castor-user] a sequence of objects can be serialized but
> not deserialized
>
>
> Why not connect thru TCP socket and parse the contents?
> Yes/No?
> Martin-
> ----- Original Message -----
> From: "Mark Chamness" <[EMAIL PROTECTED]>
> To: <[email protected]>
> Sent: Tuesday, May 17, 2005 1:09 PM
> Subject: RE: [castor-user] a sequence of objects can be serialized but not
> deserialized
>
>
>> 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/
>>
>> -mark
>>
>> -----Original Message-----
>> From: Mark Chamness [mailto:[EMAIL PROTECTED]
>> Sent: Thursday, May 12, 2005 9:11 AM
>> To: [email protected]
>> 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;
>> }
>> }
>>
>>
>>
>>
>>
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