VariableStore.hpp

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/*
 * Copyright (c) 2001-2006
 *     DecisionSoft Limited. All rights reserved.
 * Copyright (c) 2004-2006
 *     Progress Software Corporation. All rights reserved.
 * Copyright (c) 2004-2006
 *     Oracle. All rights reserved.
 *
 * See the file LICENSE for redistribution information.
 *
 * $Id: VariableStore.hpp,v 1.10 2006/11/01 16:37:12 jpcs Exp $
 */

#ifndef _VARIABLESTORE_HPP
#define _VARIABLESTORE_HPP

#include <xqilla/framework/XQillaExport.hpp>
#include <xercesc/util/XercesDefs.hpp>
#include <vector>
#include <xercesc/util/XMemory.hpp>

class Sequence;
template<class TYPE> class VarHashEntry;
template<class TYPE> class Scope;
class StaticContext;
class XPath2MemoryManager;
class LocationInfo;

class XQILLA_API VariableStore : public XERCES_CPP_NAMESPACE_QUALIFIER XMemory
{
public:
  typedef Scope<Sequence> MyScope;
  typedef VarHashEntry<Sequence> Entry;

  virtual ~VariableStore() {};

  virtual void clear() = 0;

  virtual void addLocalScope() = 0;
  virtual void addLogicalBlockScope() = 0;
  virtual void removeScope() = 0;

  virtual MyScope *getScopeState() = 0;
  virtual void setScopeState(MyScope *state) = 0;

  virtual void setGlobalVar(const XMLCh* ident, const Sequence &value,
                            const StaticContext* context,
                            const LocationInfo *location) = 0;
  virtual void setGlobalVar(const XMLCh* namespaceURI, const XMLCh* name, const Sequence &value,
                    const StaticContext* context) = 0;

  virtual void setVar(const XMLCh* ident, const Sequence &value,
                      const StaticContext* context,
                      const LocationInfo *location) = 0;
  virtual void setVar(const XMLCh* namespaceURI, const XMLCh* name, const Sequence &value,
              const StaticContext* context) = 0;

  virtual void declareVar(const XMLCh* ident, 
                          const Sequence &value,
                          const StaticContext* context,
                          const LocationInfo *location) = 0;
  virtual void declareVar(const XMLCh* namespaceURI,
                  const XMLCh* name,
                  const Sequence &value,
                  const StaticContext* context) = 0;

  virtual const std::pair<bool, Sequence> getVar(const XMLCh* ident,
                                                 const StaticContext* context,
                                                 const LocationInfo *location) const = 0;
  virtual const std::pair<bool, Sequence> getVar(const XMLCh* namespaceURI,
                                    const XMLCh* name,
                                    const StaticContext* context) const = 0;

  virtual Entry* getReferenceVar(const XMLCh* ident,
                                 const StaticContext* context,
                                 const LocationInfo *location) const = 0;
  virtual Entry* getReferenceVar(const XMLCh* namespaceURI,
                                    const XMLCh* name,
                                    const StaticContext* context) const = 0;

  virtual const std::pair<bool, Sequence> getGlobalVar(const XMLCh* ident,
                                                       const StaticContext* context,
                                                       const LocationInfo *location) const = 0;
  virtual const std::pair<bool, Sequence> getGlobalVar(const XMLCh* namespaceURI,
                                    const XMLCh* name,
                                    const StaticContext* context) const = 0;

  virtual void delVar(const XMLCh* ident, const StaticContext* context,
                      const LocationInfo *location) = 0;
  virtual void delVar(const XMLCh* namespaceURI, const XMLCh* name, const StaticContext* context) = 0;

  virtual void delGlobalVar(const XMLCh* ident, const StaticContext* context,
                            const LocationInfo *location) = 0;

  virtual XMLCh* print(XERCES_CPP_NAMESPACE_QUALIFIER MemoryManager* memMgr) const = 0;

  virtual std::vector< std::pair<const XMLCh*, const XMLCh*> > getVars() const = 0;
};

#endif

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