82 lines
2.1 KiB
C++
82 lines
2.1 KiB
C++
/*
|
|
* Copyright (c) 2001-2008
|
|
* DecisionSoft Limited. All rights reserved.
|
|
* Copyright (c) 2004-2008
|
|
* Oracle. All rights reserved.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*
|
|
* $Id: MessageListener.hpp 475 2008-01-08 18:47:44Z jpcs $
|
|
*/
|
|
|
|
#ifndef _STACKFRAME_HPP
|
|
#define _STACKFRAME_HPP
|
|
|
|
#include <string>
|
|
|
|
#include <xqilla/framework/XQillaExport.hpp>
|
|
#include <xqilla/items/Item.hpp>
|
|
|
|
#include <xercesc/util/XercesDefs.hpp>
|
|
|
|
class ASTNode;
|
|
class TupleNode;
|
|
class LocationInfo;
|
|
class DynamicContext;
|
|
class EventHandler;
|
|
class Sequence;
|
|
class VariableStore;
|
|
|
|
XERCES_CPP_NAMESPACE_BEGIN
|
|
class DOMXPathNSResolver;
|
|
XERCES_CPP_NAMESPACE_END
|
|
|
|
/**
|
|
* A class that represents an item in a query call stack
|
|
*/
|
|
class XQILLA_API StackFrame
|
|
{
|
|
public:
|
|
virtual ~StackFrame() {}
|
|
|
|
const LocationInfo *getLocationInfo() const { return location_; }
|
|
const StackFrame *getPreviousFrame() const { return prev_; }
|
|
|
|
virtual Sequence query(const XMLCh *query) const;
|
|
virtual void query(const XMLCh *query, EventHandler *events) const;
|
|
|
|
virtual const ASTNode *getASTNode() const = 0;
|
|
virtual const TupleNode *getTupleNode() const = 0;
|
|
virtual std::string getQueryPlan() const = 0;
|
|
|
|
protected:
|
|
StackFrame(const LocationInfo *location, DynamicContext *context);
|
|
|
|
const LocationInfo *location_;
|
|
|
|
DynamicContext *context_;
|
|
Item::Ptr contextItem_;
|
|
size_t contextPosition_;
|
|
size_t contextSize_;
|
|
const VariableStore *variables_;
|
|
const XERCES_CPP_NAMESPACE_QUALIFIER DOMXPathNSResolver *nsResolver_;
|
|
const XMLCh *defaultElementNS_;
|
|
|
|
const StackFrame *prev_;
|
|
|
|
private:
|
|
StackFrame(const StackFrame &);
|
|
StackFrame &operator=(const StackFrame&);
|
|
};
|
|
|
|
#endif
|