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java.lang.Object | +--java.lang.Thread | +--keepalive.keepalive.KeepAlive | +--keepalive.keepalive.PassiveKeepAlive
Resembles the ActiveKeepAlive in that it sends out dummy messages to see if it gets an IOException, but does not send out dummy messages periodically; rather, only if no incoming data is forthcoming for a long time do we test the connection.
Fields inherited from class keepalive.keepalive.KeepAlive |
ARE_YOU_THERE, endRequested, I_HEAR_YOU, TIME_BETWEEN_ACTIVE_PROBES |
Fields inherited from class java.lang.Thread |
MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY |
Constructor Summary | |
PassiveKeepAlive()
Used for dynamic classloading |
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PassiveKeepAlive(Receiver receiver,
Sender sender)
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Method Summary | |
boolean |
messageReceived(java.lang.String s)
Whenever we receive a message, wake up the listening thread for another loop. |
void |
run()
Require the subclasses to implement run(), to prevent them from using the run() method in class Thread with a null body. |
void |
setReceiver(Receiver receiver)
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Methods inherited from class keepalive.keepalive.KeepAlive |
end, endRequested, getDummyString, getReceiver, getSender, getSilentTimeForIncoming, setSender |
Methods inherited from class java.lang.Thread |
activeCount, checkAccess, countStackFrames, currentThread, destroy, dumpStack, enumerate, getContextClassLoader, getName, getPriority, getThreadGroup, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setName, setPriority, sleep, sleep, start, stop, stop, suspend, toString, yield |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
public PassiveKeepAlive(Receiver receiver, Sender sender)
public PassiveKeepAlive()
Method Detail |
public void setReceiver(Receiver receiver)
setReceiver
in class KeepAlive
public void run()
KeepAlive
run
in class KeepAlive
public boolean messageReceived(java.lang.String s)
messageReceived
in interface MessageListener
keepalive.communication.MessageListener
s
- the message that was received
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