public AnimaQuery<T> order(String columnName, OrderBy orderBy) {
        if (this.orderBySQL.length() > 0) {
            this.orderBySQL.append(',');
        }
        this.orderBySQL.append(' ').append(columnName).append(' ').append(orderBy.toString());
        return this;
    }
public AnimaQuery < T > order ( String columnName , OrderBy orderBy ) { if ( this . orderBySQL . length ( ) > 0 ) { this . orderBySQL . append ( ',' ) ; } this . orderBySQL . append ( ' ' ) . append ( columnName ) . append ( ' ' ) . append ( orderBy . toString ( ) ) ; return this ; }
generate order by statement

@param columnName column name
@param orderBy    order by @see OrderBy
@return AnimaQuery