Method replaceProtocol

src/org/jgroups/stack/ProtocolStack.java:748–766

Replaces one protocol instance with another. Should be done before the stack is connected @param existing_prot @param new_prot

(Protocol existing_prot, Protocol new_prot)

     * @param new_prot
     */
    public void replaceProtocol(Protocol existing_prot, Protocol new_prot) throws Exception {
        Protocol up_neighbor=existing_prot.getUpProtocol(), down_neighbor=existing_prot.getDownProtocol();

        new_prot.setUpProtocol(existing_prot.getUpProtocol());
        new_prot.setDownProtocol(existing_prot.getDownProtocol());
        up_neighbor.setDownProtocol(new_prot);
        if(down_neighbor != null)
            down_neighbor.setUpProtocol(new_prot);

        existing_prot.setDownProtocol(null);
        existing_prot.setUpProtocol(null);
        existing_prot.stop();
        existing_prot.destroy();

        if(new_prot.getUpProtocol() == this)
            top_prot=new_prot;
        callAfterCreationHook(new_prot, afterCreationHook());
        new_prot.init();
    }