/**************************************************************
 * 
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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
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 *************************************************************/


#ifndef INCLUDED_I_DOCUMENT_EXTERNAL_DATA_HXX
#define INCLUDED_I_DOCUMENT_EXTERNAL_DATA_HXX

#include <hash_map>
#include <boost/shared_ptr.hpp>

namespace sw
{
enum tExternalDataType { FIB, STTBF_ASSOC };

struct ExternalDataTypeHash
{
    size_t operator()(tExternalDataType eType) const { return eType; }
};

class ExternalData
{
public:
    ExternalData() {}
    virtual ~ExternalData() {}
};

typedef ::boost::shared_ptr<ExternalData> tExternalDataPointer;
}


class IDocumentExternalData
{
protected:
    typedef ::std::hash_map<sw::tExternalDataType, sw::tExternalDataPointer, sw::ExternalDataTypeHash> 
    tExternalData;

    tExternalData m_externalData;

    virtual ~IDocumentExternalData() {};

public:
    virtual void setExternalData(sw::tExternalDataType eType, 
                                 sw::tExternalDataPointer pPayload) = 0;
    virtual sw::tExternalDataPointer getExternalData(sw::tExternalDataType eType) = 0;
};

#endif //INCLUDED_I_DOCUMENT_EXTERNAL_DATA_HXX