[Boost-users] Boost Serialization calling a custom serialize method

Subject: [Boost-users] Boost Serialization calling a custom serialize method
From: Pooyan Dadvand (pooyan_at_[hidden])
Date: 2010-08-18 08:27:24

Hi,

 

I’m trying to use the boost serialization in our project “Kratos” (a
Multi-physics finite element code) in which I found the following problem, I
have a class Variable which is derived from VariableData as follow:

 

Class VariableData

{

                std::size_t mKey;

public:

.....

};

 

template<class TDataType>

class Variable : public VariableData

{

....

}

 

Now I have a container which holds a pairs, consist of VariableData pointer
to the Variable and a void* pointer to its value:

 

std::vector<std::pair<const VariableData*, void*> >

 

which I want to serialize but as it can be seen I don’t have the pointer to
data in my variable and I might need to implement a costumized version of
Serialized with void* pValue as an additional parameter for VariableData and
Variable classes:

 

template<class TArchiveType>

Variable::serialize(TArchiveType &rArchive, const unsigned int Version,
void* pValue)

{

                rArchive & static_cast<TDataType>(pVAlue);

}

 

 The problem here is the template definition of this method which make it
impossible to be virtual. I note that the library uses
get_extended_type_info for this porposed. But I don’t know how is its
correct way of use. Can anybody give me a hint about how I can handle this
problem?

 

Just to add some restriction:

-          I don’t want to add a hierarchy of handlers instead of pair
because it adds another pointer jump to the container and reduce its
performance in normal use of it

-          I don’t want to add a version of non template members for each
archive type while it makes a lot of duplications and makes extra dependency
to the archive types in a layer of code which is not expected to have this
dependency

 

Thanks,

 

Pooyan.

 

____________________________________________________________________________
____________________________________________________________________________
_______________________

Dr. Pooyan Dadvand

Member of Kratos team 

International Center for Numerical Methods in Engineering - CIMNE
Campus Norte, Edificio C1 

c/ Gran Capitán s/n

08034 Barcelona, España

Tel:        [phone]

Fax:       [phone]

web:        <http://www.cimne.com> www.cimne.com

               <http://www.cimne.com/kratos/> www.cimne.com/kratos/

____________________________________________________________________________
____________________________________________________________________________
_______________________

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