/*
 * 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: FuncFactory.hpp 573 2008-08-06 16:43:33Z jpcs $
 */

#ifndef _FUNCFACTORY_HPP
#define _FUNCFACTORY_HPP

#include <xqilla/framework/XQillaExport.hpp>
#include <xqilla/ast/ASTNode.hpp>

#include <xercesc/framework/XMLBuffer.hpp>

class XQILLA_API FuncFactory
{
public:
  FuncFactory(const XMLCh *uri, const XMLCh *name, size_t minArgs, size_t maxArgs,
              XERCES_CPP_NAMESPACE_QUALIFIER MemoryManager *mm);
  FuncFactory(size_t numArgs, XERCES_CPP_NAMESPACE_QUALIFIER MemoryManager *mm);
  virtual ~FuncFactory() {}

  ///Create instance of a function, using FuncFactoryTemplate to determine type
  virtual ASTNode *createInstance(const VectorOfASTNodes &args, XPath2MemoryManager* memMgr) const = 0;

  const XMLCh *getURI() const { return uri_; }
  const XMLCh *getName() const { return name_; }
  const XMLCh *getURINameHash() const { return uriname_.getRawBuffer(); }
  void setURINameHash(const XMLCh *uri, const XMLCh *name);
  size_t getMinArgs() const { return minArgs_; }
  size_t getMaxArgs() const { return maxArgs_; }

protected:
  const XMLCh *uri_, *name_;
  size_t minArgs_, maxArgs_;
  XERCES_CPP_NAMESPACE_QUALIFIER XMLBuffer uriname_;
};

#endif

