#ifndef TAlignmentId_hxx
#define TAlignmentId_hxx

#include "ISHAHashValue.hxx"

namespace COMET {
    class IAlignmentId;
}

/// Identify a set of alignment constants so we can keep track of which
/// constants are applied to a particular geometry.
class COMET::IAlignmentId : public COMET::ISHAHashValue {
public:
    IAlignmentId();
    IAlignmentId(const IAlignmentId& hc);
    IAlignmentId(const ISHAHashValue& hc);
    IAlignmentId(unsigned int hc[5]);
    IAlignmentId(unsigned int hc0, 
                 unsigned int hc1, 
                 unsigned int hc2, 
                 unsigned int hc3, 
                 unsigned int hc4);
    virtual ~IAlignmentId();

    /// Get the documentation string.
    const std::string& GetDocumentString() const {return fDocString;}

    /// Set the documentation string.
    void SetDocumentString(const char* s) {fDocString = std::string(s);}

private:
    /// A documentation string to go with this alignment.
    std::string fDocString;
    
    ClassDef(IAlignmentId,1);
};
#endif