ForkProtocol

java.lang.Object
- org.jgroups.stack.Protocol
- - org.jgroups.fork.ForkProtocol

```
public class ForkProtocol
extends Protocol
```
Acts as bottom protocol of a fork-stack. Knows about the fork-stack-id and inserts it into the ForkHeader of messages sent down the stack

Since:

3.4

Author:

Bela Ban

Field Summary

Fields
Modifier and Type Field Description

protected java.lang.String fork_stack_id
- Fields inherited from class org.jgroups.stack.Protocol
  after_creation_hook, down_prot, ergonomics, id, log, stack, stats, up_prot

Constructor Summary

Constructors
Constructor Description

ForkProtocol(java.lang.String fork_stack_id)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`java.lang.Object`	`down(Event evt)`	An event is to be sent down the stack.
`java.lang.Object`	`down(Message msg)`	A message is sent down the stack.

Methods inherited from class org.jgroups.stack.Protocol
accept, afterCreationHook, destroy, enableStats, getConfigurableObjects, getDownProtocol, getDownServices, getId, getIdsAbove, getLevel, getLog, getName, getProtocolStack, getSocketFactory, getThreadFactory, getTransport, getUpProtocol, getUpServices, getValue, init, isErgonomics, level, parse, providedDownServices, providedUpServices, requiredDownServices, requiredUpServices, resetStatistics, resetStats, setDownProtocol, setErgonomics, setId, setLevel, setProtocolStack, setSocketFactory, setUpProtocol, setValue, start, statsEnabled, stop, up, up, up

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - fork_stack_id
```
protected final java.lang.String fork_stack_id
```
- Constructor Detail
  - ForkProtocol
```
public ForkProtocol(java.lang.String fork_stack_id)
```
- Method Detail
  - down
```
public java.lang.Object down(Event evt)
```
    Description copied from class: Protocol
    
    An event is to be sent down the stack. A protocol may want to examine its type and perform some action on it, depending on the event's type. If the event is a message MSG, then the protocol may need to add a header to it (or do nothing at all) before sending it down the stack using down_prot.down().
    
    Overrides:
    
    down in class Protocol
  - down
```
public java.lang.Object down(Message msg)
```
    Description copied from class: Protocol
    
    A message is sent down the stack. Protocols may examine the message and do something (e.g. add a header) with it before passing it down.
    
    Overrides:
    
    down in class Protocol