/*
 * Copyright (c) 2001, DecisionSoft Limited All rights reserved.
 * Please see LICENSE.TXT for more information.
 */

#ifndef _ATSTRINGORDERIVEDIMPL_HPP
#define _ATSTRINGORDERIVEDIMPL_HPP

#include <xercesc/util/XercesDefs.hpp>
#include <pathan/ATStringOrDerived.hpp>



class Sequence;

class PATHAN_EXPORT ATStringOrDerivedImpl : public ATStringOrDerived 
{

public:

  /** Releases the memory used by this Item */
  virtual void release() const;

  /* constructor */
  ATStringOrDerivedImpl(const XMLCh* typeURI, const XMLCh* typeName, const XMLCh* value, XPath2MemoryManager* memMgr, const DynamicContext* context);

  /* Get the name of the primitive type (basic type) of this type
   * (ie "decimal" for xs:decimal) */
  virtual const XMLCh* getPrimitiveTypeName() const;

  /* Get the namespace URI for this type */
  virtual const XMLCh* getTypeURI() const;

  /* Get the name of this type  (ie "integer" for xs:integer) */
  virtual const XMLCh* getTypeName() const;

 /* returns the XMLCh* (canonical) representation of this type */
  virtual const XMLCh* asString(const DynamicContext* context) const;

  /* returns this string as a set of codepoints */
  virtual const Sequence asCodepoints(const DynamicContext* context) const;

  /* returns the substring starting at startingLoc of given length */
  virtual const ATStringOrDerived* substring(const Numeric* startingLoc, const Numeric* length, const DynamicContext* context) const;

  /* returns the substring that occurs after the first occurence of pattern */
  virtual const ATStringOrDerived* substringAfter(const ATStringOrDerived* pattern, Collation* collation, const DynamicContext* context) const;

  /* returns the substring that occurs before the first occurence of pattern */
  virtual const ATStringOrDerived* substringBefore(const ATStringOrDerived* pattern, Collation* collation, const DynamicContext* context) const;

  /* returns the length of this string */
  virtual unsigned int getLength() const;

  /* returns true if the two objects' URI are equal (string comparison)
   * false otherwise */
  virtual bool equals(const AnyAtomicType* target, const DynamicContext* context) const;
  
  /* Get the primitive index associated with this type */
  static AnyAtomicType::AtomicObjectType getTypeIndex(); 

  /* Get the primitive type name */
  static const XMLCh* getPrimitiveName();

  /* Get the primitive index associated with this type */
  virtual AnyAtomicType::AtomicObjectType getPrimitiveTypeIndex() const;

protected:
  
  /* If possible, cast this type to the target type */
  virtual const AnyAtomicType* castAsInternal(const XMLCh* targetURI, const XMLCh* targetType, const DynamicContext* context) const;

private:

  /*The value of this string */
  const XMLCh* _value;

  /* the name of this type */
  const XMLCh* _typeName;

  /* the uri of this type */
  const XMLCh* _typeURI;
 
};

#endif // _ATSTRINGORDERIVEDIMPL_HPP