Question about Validation Timing in SAXParser.

Question

Hi,
I'm using the SAXParser (9.0.4) in validating mode against a DTD. When I tried to catch validation errors
using the ErrorHandler interface, I saw the ErrorHandler methods are called back at the end of the parse process (after the enddocument event).
Is there anyway to change this behaviour. I need to know the erronious cases during the parse not once it is finished.
When I plugged Xerces in place of Oracle's parser it behaved as expected.
Thanks in advance
Emre

Answer 1

Hi Deepak,
Here is the case I have written using your sample.
As you will see from the output, the error callback
is not called in sync with the error position.
Other parsers I have tried report the expected
output. Is there a mistake I have done?
Thanks for your efforts.
Regards.
Emre
-- test.xml -------------------------------------
<!DOCTYPE test SYSTEM "test.dtd">
<test>
<elm/>
<elm num="1">
<name>element 1</name>
</elm>
<elm num="2">
<name>element 2</name>
</elm>
</test>
-- test.dtd -------------------------------------
<!ELEMENT test (elm+)>
<!ELEMENT elm (name)>
<!ATTLIST elm num CDATA #REQUIRED>
<!ELEMENT name (#PCDATA)>
-- test.java ------------------------------------
import oracle.xml.parser.v2.*;
import org.xml.sax.*;
import java.io.*;
import java.net.*;
public class test
class Validator extends HandlerBase
private String startElement = null;
private Exception exception = null;
public void startElement(String element,
AttributeList attributes)
startElement = element;
System.out.println("START : " + element);
public void error(SAXParseException e)
exception = e;
System.out.println("ERROR : " + e.getMessage());
public void run() throws Exception
SAXParser parser = new SAXParser();
Validator handler = new Validator();
parser.setErrorHandler(handler);
parser.setDocumentHandler(handler);
parser.setValidationMode(true);
parser.parse("file:/c:/test.xml");
public static void main(String[] args)
throws Exception
test t = new test();
t.run();
-- output ---------------------------------------
START : test
START : elm
START : elm
START : name
START : elm
START : name
ERROR : file:/c:/test.xml<Line 3, Column 8>: XML-0138: (Error) REQUIRED attribute 'num' is not specified.
ERROR : file:/c:/test.xml<Line 3, Column 8>: XML-0150: (Error) Element elm not complete, expected elements '[name]'.
-- expected output ------------------------------
START : test
ERROR : file:/c:/test.xml<Line 3, Column 8>: XML-0138: (Error) REQUIRED attribute 'num' is not specified.
START : elm
ERROR : file:/c:/test.xml<Line 3, Column 8>: XML-0150: (Error) Element elm not complete, expected elements '[name]'.
START : elm
START : name
START : elm
START : name