down
public void down(Event evt)
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 passDown()
. 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 passUp()
.
- down in interface Protocol
getReceivedBytes
public long getReceivedBytes()
getReceivedMcastBytes
public long getReceivedMcastBytes()
getReceivedMcastMessages
public long getReceivedMcastMessages()
getReceivedMessages
public long getReceivedMessages()
getReceivedUnicastBytes
public long getReceivedUnicastBytes()
getReceivedUnicastMessages
public long getReceivedUnicastMessages()
getSentBytes
public long getSentBytes()
getSentMcastBytes
public long getSentMcastBytes()
getSentMcastMessages
public long getSentMcastMessages()
getSentMessages
public long getSentMessages()
getSentUnicastBytes
public long getSentUnicastBytes()
getSentUnicastMessages
public long getSentUnicastMessages()
setProperties
public boolean setProperties(Properties props)
Configures the protocol initially. A configuration string consists of name=value
items, separated by a ';' (semicolon), e.g.:
"loopback=false;unicast_inport=4444"
- setProperties in interface Protocol
up
public void up(Event evt)
An event was received from the layer below. Usually the current layer will want to examine
the event type and - depending on its type - perform some computation
(e.g. removing headers from a MSG event type, or updating the internal membership list
when receiving a VIEW_CHANGE event).
Finally the event is either a) discarded, or b) an event is sent down
the stack using passDown()
or c) the event (or another event) is sent up
the stack using passUp()
.
- up in interface Protocol