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#ifndef SAMPLER_FACTORY_H_
#define SAMPLER_FACTORY_H_

#include <vector>
#include <list>
#include <string>

namespace jags {

class Sampler;
class StochasticNode;
class Graph;

/**
 * @short Factory for Sampler objects
 */
class SamplerFactory
{
public:
    virtual ~SamplerFactory();
    /**
     * Finds nodes in the list of stochastic nodes that can be sampled
     * within the given graph, and returns a vector of newly allocated
     * samplers for them.  If no sampler can be created, an empty
     * vector is returned.
     */
    virtual std::vector<Sampler*> 
	makeSamplers(std::list<StochasticNode*> const &nodes, 
		     Graph const &graph) const = 0;
    /**
      * Returns the name of the sampler factory
      */
    virtual std::string name() const = 0;

};

} /* namespace jags */

#endif /* SAMPLER_FACTORY_H_ */