Examples of org.xml.sax.Locator

org.xml.sax.Locator
axproject.org'>http://www.saxproject.org for further information.
If a SAX parser provides location information to the SAX application, it does so by implementing this interface and then passing an instance to the application using the content handler's {@link org.xml.sax.ContentHandler#setDocumentLocator setDocumentLocator} method. The application can use theobject to obtain the location of any other SAX event in the XML source document.

Note that the results returned by the object will be valid only during the scope of each callback method: the application will receive unpredictable results if it attempts to use the locator at any other time, or after parsing completes.

SAX parsers are not required to supply a locator, but they are very strongly encouraged to do so. If the parser supplies a locator, it must do so before reporting any other document events. If no locator has been set by the time the application receives the {@link org.xml.sax.ContentHandler#startDocument startDocument}event, the application should assume that a locator is not available.
@since SAX 1.0 @author David Megginson @version 2.0.1 (sax2r2) @see org.xml.sax.ContentHandler#setDocumentLocator

  {
    int line;
    int column;
    String systemId;


    Locator locator = context.getLocator();
    if (locator == null)
    {
      line   = -1;
      column = -1;
      systemId = null;
    }
    else
    {
      line = locator.getLineNumber();
      column = locator.getColumnNumber();
      systemId = locator.getSystemId();
    }


    return _getErrorMessage(message, line, column, systemId);
  }

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    return this.getClass().getName();
  }


  protected int getColumnNumber(ExecutionContext ec) {
    Interpreter jp = ec.getJoranInterpreter();
    Locator locator = jp.getLocator();
    if (locator != null) {
      return locator.getColumnNumber();
    }
    return -1;
  }

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    return -1;
  }


  protected int getLineNumber(ExecutionContext ec) {
    Interpreter jp = ec.getJoranInterpreter();
    Locator locator = jp.getLocator();
    if (locator != null) {
      return locator.getLineNumber();
    }
    return -1;
  }

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        if (stackName == null) {
          // we only care about the real object stack
          
          // note that a Locator object can also provide 
          // publicId and systemId info.
          Locator l = d.getDocumentLocator();
          StringBuffer locn = new StringBuffer();
          locn.append("line=");
          locn.append(l.getLineNumber());
          locations.put(o, locn.toString());
        }
        return o;
      }

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   }


   /** Returns a locator implementation. */
   private LocatorImpl getLocatorImpl(LocatorImpl fillin) {


      Locator here = fErrorReporter.getLocator();
      if (fillin == null)
         return new LocatorImpl(here);
      fillin.setPublicId(here.getPublicId());
      fillin.setSystemId(here.getSystemId());
      fillin.setLineNumber(here.getLineNumber());
      fillin.setColumnNumber(here.getColumnNumber());
      return fillin;


   } // getLocatorImpl(LocatorImpl):LocatorImpl

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     *
     * @throws org.xml.sax.SAXException
     */
    protected void startNode(Node node) throws org.xml.sax.SAXException {
        if (node instanceof Locator) {
            Locator loc = (Locator) node;
            fLocator.setColumnNumber(loc.getColumnNumber());
            fLocator.setLineNumber(loc.getLineNumber());
            fLocator.setPublicId(loc.getPublicId());
            fLocator.setSystemId(loc.getSystemId());
        } else {
            fLocator.setColumnNumber(0);
            fLocator.setLineNumber(0);
        }

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   }


   /** Returns a locator implementation. */
   private LocatorImpl getLocatorImpl(LocatorImpl fillin) {


      Locator here = fErrorReporter.getLocator();
      if (fillin == null)
         return new LocatorImpl(here);
      fillin.setPublicId(here.getPublicId());
      fillin.setSystemId(here.getSystemId());
      fillin.setLineNumber(here.getLineNumber());
      fillin.setColumnNumber(here.getColumnNumber());
      return fillin;


   } // getLocatorImpl(LocatorImpl):LocatorImpl

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        boolean mappedSuper = "mapped-superclass".equals(elem);
        if (isMetaDataMode()) {
            meta.setSource(getSourceFile(), meta.SRC_XML);
            meta.setSourceMode(MODE_META, true);
            Locator locator = getLocation().getLocator();
            if (locator != null) {
                meta.setLineNumber(Numbers.valueOf(locator.getLineNumber()));
                meta.setColNumber(Numbers.valueOf(locator.getColumnNumber()));
            }
            meta.setListingIndex(_clsPos);
            String name = attrs.getValue("name");
            if (!StringUtils.isEmpty(name))
                meta.setTypeAlias(name);

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        Object cur = currentElement();
        Object scope = (cur instanceof ClassMetaData)
            ? ((ClassMetaData) cur).getDescribedType() : null;
        meta.setSource(getSourceFile(), scope, meta.SRC_XML);
        Locator locator = getLocation().getLocator();
        if (locator != null) {
            meta.setLineNumber(Numbers.valueOf(locator.getLineNumber()));
            meta.setColNumber(Numbers.valueOf(locator.getColumnNumber()));
        }
        return true;
    }

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        meta = getRepository().addQueryMetaData(null, name);
        meta.setDefiningType(_cls);
        meta.setQueryString(attrs.getValue("query"));
        meta.setLanguage(JPQLParser.LANG_JPQL);
        Locator locator = getLocation().getLocator();
        if (locator != null) {
            meta.setLineNumber(Numbers.valueOf(locator.getLineNumber()));
            meta.setColNumber(Numbers.valueOf(locator.getColumnNumber()));
        }
        Object cur = currentElement();
        Object scope = (cur instanceof ClassMetaData)
            ? ((ClassMetaData) cur).getDescribedType() : null;
        meta.setSource(getSourceFile(), scope, meta.SRC_XML);

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