TableVersion.h

#ifndef _ots_TableVersion_h_
#define _ots_TableVersion_h_
 
#include <ostream>
 
namespace ots
{
class TableVersion
{
  public:
    static const unsigned int INVALID;
    static const unsigned int DEFAULT;
    static const unsigned int SCRATCH;
 
    explicit TableVersion(unsigned int version = INVALID);
    explicit TableVersion(char* const& versionStr);
    explicit TableVersion(const std::string& versionStr);
    virtual ~TableVersion(void);
 
    unsigned int version(void) const;
    bool         isTemporaryVersion(void) const;
    bool         isScratchVersion(void) const;
    bool         isMockupVersion(void) const;
    bool         isInvalid(void) const;
    bool         isValid(void) const { return !isInvalid(); }
    std::string  toString(void) const;
    std::string  str() const { return toString(); }  
 
    TableVersion& operator=(const unsigned int version);
    bool          operator==(unsigned int version) const;
    bool          operator==(const TableVersion& version) const;
    bool          operator!=(unsigned int version) const;
    bool          operator!=(const TableVersion& version) const;
    bool          operator<(const TableVersion& version) const;
    bool          operator>(const TableVersion& version) const;
    bool operator<=(const TableVersion& version) const { return !operator>(version); }
    bool operator>=(const TableVersion& version) const { return !operator<(version); }
    TableVersion& operator*=(
        const unsigned int a);  
    TableVersion& operator*=(
        const TableVersion a);  
    TableVersion& operator+=(
        const TableVersion a);  
    TableVersion& operator-=(
        const TableVersion a);  
    TableVersion& operator/=(
        const TableVersion a);  
 
    friend std::ostream& operator<<(std::ostream& out, const TableVersion& version)
    {
        if(version.isScratchVersion())
            out << "ScratchVersion";
        else if(version.isMockupVersion())
            out << "Mock-up";
        else if(version.isInvalid())
            out << "InvalidVersion";
        else
            out << version.toString();
        return out;
    }
 
    static TableVersion getNextVersion(const TableVersion& version = TableVersion());
    static TableVersion getNextTemporaryVersion(
        const TableVersion& version = TableVersion());
 
  protected:
    enum
    {
        NUM_OF_TEMP_VERSIONS = 10000
    };
 
    unsigned int version_;
};
}  // namespace ots
#endif