IDataTransform.h

//========================================================================================
// 
// $File$
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// Owner: Michael Burbidge
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// Copyright 1997-2010 Adobe Systems Incorporated. All rights reserved.
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// NOTICE: Adobe permits you to use, modify, and distribute this file in accordance 
// with the terms of the Adobe license agreement accompanying it. If you have received
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#ifndef __IDataTransform_h__
#define __IDataTransform_h__

#include "IPMUnknown.h"
#include "DataServicesID.h"

#include <map>

class ISAXAttributes;
class IDataServicesOptions;

class IDataTransform : public IPMUnknown
{
public:
 enum { kDefaultIID = IID_IDATATRANSFORM };
 enum { kLowPriority = 0, kMediumPriority = 500, kHighPriority = 1000 };

 typedef std::map<PMString, PMString> Parameters;

 virtual int32 GetPriority() const = 0;

 virtual Parameters GetParameters(IDataServicesOptions* options, IPMStream* dataStream) const = 0;

 virtual IPMStream* TransformStream(IDataServicesOptions* options, IPMStream* dataStream, IPMUnknown* transformData) = 0;

 virtual IPMStream* TransformStream(IDataServicesOptions* options, IPMStream* dataStream, ISAXAttributes* attrs, const Parameters& params) = 0;
 virtual IPMStream* TransformStream(IDataServicesOptions* options, IPMStream* dataStream, const Parameters& params) = 0;

 virtual IPMStream* TransformStream(IPMStream* dataStream, IPMStream* xslStream) = 0;
 
 
 virtual bool16 CanTransform(IDataServicesOptions* options, IPMStream *dataStream, IPMUnknown* transformData) const = 0;
 
 virtual bool16 CanTransform(IDataServicesOptions* options, IPMStream *dataStream) const = 0;
 
 virtual bool16 CanTransform(IDataServicesOptions* options, IPMStream* dataStream, ISAXAttributes* attrs) const = 0;

 virtual IPMStream* GetSchema(IDataServicesOptions* options, IPMStream* dataStream, IPMUnknown* transformData) = 0;
 
 virtual IPMStream* GetSchema(IDataServicesOptions* options, IPMStream* dataStream, const Parameters& params) = 0;
};

#endif // __IDataTransform_h__