question: public final int compareTypeSafe ( Value v , CompareMode mode ) { if ( this == v ) { return 0 ; } else if ( this == ValueNull . INSTANCE ) { return - 1 ; } else if ( v == ValueNull . INSTANCE ) { return 1 ; } return compareSecure ( v , mode ) ; }
target:  Compare this value against another value given that the values are of the same data type.