IClusterFanin.h

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#ifndef WIRECELL_IFACE_ICLUSTERFANIN
#define WIRECELL_IFACE_ICLUSTERFANIN

#include "WireCellIface/IFaninNode.h"
#include "WireCellIface/ICluster.h"

namespace WireCell {
    /** A cluster fan-in component takes N clusters on input ports and
     * produces a single output cluster.  The merge policy and
     * restriction on the number of inputs, if any, are left to the
     * implementation.
     */
    class IClusterFanin : public IFaninNode<ICluster,ICluster,0> {
    public:

        virtual ~IClusterFanin() ;

        virtual std::string signature() {
           return typeid(IClusterFanin).name();
        }

        // Subclass must implement:
        virtual std::vector<std::string>  input_types() = 0;
        // and the already abstract:
        // virtual bool operator()(const input_vector& invec, output_pointer& out) = 0;
    };
}

#endif