question about two SAXParser in a class

I have two sax parser as follows:

 try {
                SAXParser parser = SAXParserFactory.newInstance().newSAXParser();
                SAXParser parser1 = SAXParserFactory.newInstance().newSAXParser();


                parser.parse(new File("G:\\Documents\\posts.xml"), this);
                parser1.parse(new File("G:\\Documents\\comments.xml"), this);
            } catch (Exception ex) {
                ex.printStackTrace();
            }

the question is that when the handler startEl开发者_JAVA百科ement is called, how do I check whether this is from parser1 or parser2? I am assuming that uri and localName is used, but how?

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I'd suggest using two handlers. As a trivial example (you'll have to fill in the details):

class SaxClass {
   Handler h1;
   Handler h2;

   //...stuff

   method() {
      h1 = new Handler();
      h2 = new Handler();

      try {
         SAXParser parser = SAXParserFactory.newInstance().newSAXParser();
         SAXParser parser1 = SAXParserFactory.newInstance().newSAXParser();

         parser.parse(new File("G:\\Documents\\posts.xml"), h1);
         parser1.parse(new File("G:\\Documents\\comments.xml"), h2);
      } catch (Exception ex) {
         ex.printStackTrace();
      }
   }

   class Handler extends DefaultHandler {
      // Implementation
   }
}

It doesn't look like there's a way to find the parser that generated the event.

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If you want to differentiate two content handlers based on the same class, you should construct two instances of the content handler, and pass a constructor parameter to differentiate the two, (or setter method). Save that information in the content handler as fields, and refer to them to differentiate.