void change_mode
    (
        in CosConcurrencyControl::lock_mode held_mode,
        in CosConcurrencyControl::lock_mode new_mode
    )
    raises (CosConcurrencyControl::LockNotHeld);
    CosConcurrencyControl::LockCoordinator get_coordinator
    (
        in CosTransactions::Coordinator which
    );
    void InitializeName
    (
        in CosConcurrencyControl::LockSet setPtr
    );
    void lock
    (
        in CosConcurrencyControl::lock_mode mode
    );
    boolean try_lock
    (
        in CosConcurrencyControl::lock_mode mode
    );
    void unlock
    (
        in CosConcurrencyControl::lock_mode mode
    )
    raises (CosConcurrencyControl::LockNotHeld);