org.jgroups.fork

Class ForkProtocol

java.lang.Object

org.jgroups.stack.Protocol

org.jgroups.fork.ForkProtocol

public class ForkProtocol
extends Protocol

Acts as bottom protool 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 and Description
protected String	fork_stack_id

Fields inherited from class org.jgroups.stack.Protocol

after_creation_hook, down_prot, ergonomics, id, log, name, stack, stats, up_prot

Constructor Summary

Constructors

Constructor and Description
ForkProtocol(String fork_stack_id)

Method Summary

Modifier and Type	Method and Description
Object	down(Event evt) An event is to be sent down the stack.
Map<String,Object>	dumpStats()

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, printStats, providedDownServices, providedUpServices, requiredDownServices, requiredUpServices, resetStatistics, resetStats, setDownProtocol, setErgonomics, setId, setLevel, setProtocolStack, setSocketFactory, setUpProtocol, setValue, setValues, start, statsEnabled, stop, 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 String fork_stack_id

Constructor Detail

ForkProtocol

public ForkProtocol(String fork_stack_id)

Method Detail

dumpStats

public Map<String,Object> dumpStats()

Overrides:

dumpStats in class Protocol

down

public Object down(Event evt)

Description copied from class: Protocol

An event is to be sent down the stack. The layer 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 layer may need to add a header to it (or do nothing at all) before sending it down the stack using down_prot.down(). In case of a GET_ADDRESS event (which tries to retrieve the stack's address from one of the bottom layers), the layer may need to send a new response event back up the stack using up_prot.up().

Overrides:

down in class Protocol