% SqlOperator - Enumeration of supported SQL operators for query building.
%
% Usage:
%   op = SqlOperator.GREATER_THAN;
%   opStr = op.toSqlString();  % returns '>'
%
% Supported operators:
%   EQUALS, GREATER_THAN, LESS_THAN, GREATER_EQUAL, LESS_EQUAL,
%   NOT_EQUAL, IN, BETWEEN, LIKE

classdef SqlOperator < uint32
    enumeration
        EQUALS (1)          % ==
        GREATER_THAN (2)    % >
        LESS_THAN (3)       % <
        GREATER_EQUAL (4)   % >=
        LESS_EQUAL (5)      % <=
        NOT_EQUAL (6)       % !=
        IN (7)              % IN
        BETWEEN (8)         % BETWEEN
        LIKE (9)            % LIKE
    end
    
    methods
        function op = toSqlString(obj)
            switch obj
                case SqlOperator.EQUALS
                    op = '=';
                case SqlOperator.GREATER_THAN
                    op = '>';
                case SqlOperator.LESS_THAN
                    op = '<';
                case SqlOperator.GREATER_EQUAL
                    op = '>=';
                case SqlOperator.LESS_EQUAL
                    op = '<=';
                case SqlOperator.NOT_EQUAL
                    op = '!=';
                case SqlOperator.IN
                    op = 'IN';
                case SqlOperator.BETWEEN
                    op = 'BETWEEN';
                case SqlOperator.LIKE
                    op = 'LIKE';
            end
        end
    end
end