# Xerces2 Implementation: Class XMLNSDocumentScannerImpl.NSContentDispatcher

## org.apache.xerces.impl
Class XMLNSDocumentScannerImpl.NSContentDispatcher

    java.lang.Object
      |
      +--org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.FragmentContentDispatcher
            |
            +--org.apache.xerces.impl.XMLDocumentScannerImpl.ContentDispatcher
                  |
                  +--org.apache.xerces.impl.XMLNSDocumentScannerImpl.NSContentDispatcher

All Implemented Interfaces:
  XMLDocumentFragmentScannerImpl.Dispatcher

Enclosing class:
  XMLNSDocumentScannerImpl

protected final class XMLNSDocumentScannerImpl.NSContentDispatcher
extends XMLDocumentScannerImpl.ContentDispatcher

Dispatcher to handle content scanning.

Constructor Summary
`protected` `XMLNSDocumentScannerImpl.NSContentDispatcher()`

Method Summary
`protected boolean` `scanRootElementHook()` Scan for root element hook.

Methods inherited from class org.apache.xerces.impl.XMLDocumentScannerImpl.ContentDispatcher
`elementDepthIsZeroHook, endOfFileHook, scanForDoctypeHook`

Methods inherited from class org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.FragmentContentDispatcher
`dispatch`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### XMLNSDocumentScannerImpl.NSContentDispatcher

    protected XMLNSDocumentScannerImpl.NSContentDispatcher()

Method Detail

### scanRootElementHook

    protected boolean scanRootElementHook()
                                   throws java.io.IOException,
                                          org.apache.xerces.xni.XNIException

  Scan for root element hook. This method is a hook for subclasses to add code that handles scanning for the root element. This method will also attempt to remove DTD validator from the pipeline, if there is no DTD grammar. If DTD validator is no longer in the pipeline bind namespaces in the scanner.
  Overrides:
    `scanRootElementHook` in class `XMLDocumentScannerImpl.ContentDispatcher`
  Returns:
    True if the caller should stop and return true which allows the scanner to switch to a new scanning dispatcher. A return value of false indicates that the content dispatcher should continue as normal.

Copyright © 1999-2004 Apache XML Project. All Rights Reserved.