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diff --git a/ACE/ACEXML/common/LocatorImpl.h b/ACE/ACEXML/common/LocatorImpl.h
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+// -*- C++ -*-
+
+//=============================================================================
+/**
+ *  @file    LocatorImpl.h
+ *
+ *  $Id$
+ *
+ *  @author Nanbor Wang <nanbor@cs.wustl.edu>
+ *  @author Krishnakumar Balasubramanian <kitty@cs.wustl.edu>
+ */
+//=============================================================================
+
+#ifndef ACEXML_LOCALTORIMPL_H
+#define ACEXML_LOCALTORIMPL_H
+
+#include /**/ "ace/pre.h"
+#include "ACEXML/common/ACEXML_Export.h"
+
+#if !defined (ACE_LACKS_PRAGMA_ONCE)
+#pragma once
+#endif /* ACE_LACKS_PRAGMA_ONCE */
+
+#include "ACEXML/common/Locator.h"
+
+/**
+ * @class ACEXML_LocatorImpl LocatorImpl.h "ACEXML/common/LocatorImpl.h"
+ *
+ * @brief ACEXML_LocatorImpl is an implementation of ACEXML_Locator.
+ *
+ * This class is available mainly for application writers, who can
+ * use it to make a persistent snapshot of a locator at any point
+ * during a document parse:
+ *
+ * @code
+ *   ACEXML_Locator locator;
+ *   ACEXML_Locator startloc;
+ *
+ *   public void setLocator (ACEXML_Locator locator)
+ *   {
+ *      // note the locator
+ *      this.locator = locator;
+ *   }
+ *
+ *   public void startDocument ()
+ *   {
+ *      // save the location of the start of the document
+ *      // for future use.
+ *      ACEXML_Locator startloc = new ACEXML_LocatorImpl(locator);
+ *   }
+ * @endcode
+ *
+ * Normally, parser writers will not use this class, since it is more
+ * efficient to provide location information only when requested,
+ * rather than constantly updating a Locator object.
+ *
+ * @todo ACEXML parser doesn't support the use of Locator yet.
+ *
+ * @sa ACEXML_Locator
+ */
+class ACEXML_Export ACEXML_LocatorImpl : public ACEXML_Locator
+{
+public:
+  /*
+   * Default constructor.
+   */
+  ACEXML_LocatorImpl (void);
+
+  /**
+   * Construct a locator with systemId and publicId
+   *
+   */
+  ACEXML_LocatorImpl (const ACEXML_Char* systemId,
+                      const ACEXML_Char* publicId);
+  /**
+   * Copy constructor.  Create a persistent copy of the current state
+   * of a locator. When the original locator changes, this copy will
+   * still keep the original values (and it can be used outside the
+   * scope of DocumentHandler methods).
+   */
+  ACEXML_LocatorImpl (const ACEXML_Locator& locator);
+
+  /*
+   * Destructor.
+   */
+  virtual ~ACEXML_LocatorImpl (void);
+
+  /*
+   * Return the column number where the current document event ends.
+   */
+  virtual int getColumnNumber (void) const;
+
+  /*
+   * Return the line number where the current document event ends.
+   */
+  virtual int getLineNumber (void) const;
+
+  /*
+   * Return the public identifier for the current document event.
+   */
+  virtual const ACEXML_Char *getPublicId (void) const;
+
+  /*
+   * Return the system identifier for the current document event.
+   */
+  virtual const ACEXML_Char *getSystemId (void) const;
+
+  /*
+   * Set the column number of this locator.
+   */
+  void setColumnNumber (int cn);
+
+  /*
+   * Set the line number of this locator.
+   */
+  void setLineNumber (int ln);
+
+  /*
+   * Set the public identifier of this locator.
+   */
+  void setPublicId (const ACEXML_Char *id);
+
+  /*
+   * Set the system identifier of this locator.
+   */
+  void setSystemId (const ACEXML_Char *id);
+
+  /*
+   * Increment the line number.
+   */
+  void incrLineNumber ();
+
+  /*
+   * Increment the column number.
+   */
+  void incrColumnNumber ();
+
+  /*
+   * Reset the Locator information. This is necessary because one might
+   * want to use the same parser to parse multiple files. In that case,
+   * tying the life of the Locator with the parser is not appropriate. The
+   * parser calls this method as soon as issuing an endDocument() call.
+   */
+  void reset (void);
+
+private:
+  ACEXML_Char *publicId_;
+  ACEXML_Char *systemId_;
+  int lineNumber_;
+  int columnNumber_;
+};
+
+#if defined (__ACEXML_INLINE__)
+# include "ACEXML/common/LocatorImpl.i"
+#endif /* __ACEXML_INLINE__ */
+
+#include /**/ "ace/post.h"
+
+#endif /* ACEXML_LOCALTORIMPL_H */