Java Doc for TurnBarrier.java in  » Database-JDBC-Connection-Pool » Apache-commons-transaction-1.2 » org » apache » commons » transaction » util » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Database JDBC Connection Pool » Apache commons transaction 1.2 » org.apache.commons.transaction.util 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   org.apache.commons.transaction.util.TurnBarrier

TurnBarrier
public class TurnBarrier (Code)
Simple turn based barrier to make a sequence of calls from different threads deterministic. This is very useful for testing where you want to have a continuous flow throughout different threads. The idea is to have an ordered sequence of steps where step n can not be executed before n-1.
version:
   $Id: TurnBarrier.java 493628 2007-01-07 01:42:48Z joerg $


Field Summary
final public static  longDEFAULT_TIMEOUT
    
protected  intcurrentNumber
    
protected  LoggerFacadelogger
    
final protected  Stringname
    
final protected  intstartNumber
    
final protected  longtimeout
    

Constructor Summary
public  TurnBarrier(String name, LoggerFacade logger)
     Creates a new turn barrier starting with turn 0 with an unlimited timeout.
public  TurnBarrier(String name, long timeout, LoggerFacade logger)
     Creates a new turn barrier starting with turn 0.
public  TurnBarrier(String name, long timeout, LoggerFacade logger, int startTurn)
     Creates a new turn barrier.

Method Summary
public synchronized  voidreset()
     Starts the barrier over again.
public synchronized  voidsignalTurn(int turnNumber)
     Signals the next turn.
public synchronized  voidwaitForTurn(int turnNumber)
     Blockingly waits for the given turn.

Field Detail
DEFAULT_TIMEOUT
final public static long DEFAULT_TIMEOUT(Code)



currentNumber
protected int currentNumber(Code)



logger
protected LoggerFacade logger(Code)



name
final protected String name(Code)



startNumber
final protected int startNumber(Code)



timeout
final protected long timeout(Code)




Constructor Detail
TurnBarrier
public TurnBarrier(String name, LoggerFacade logger)(Code)
Creates a new turn barrier starting with turn 0 with an unlimited timeout.
Parameters:
  name - the name of the barrier
Parameters:
  logger - logger for debug output



TurnBarrier
public TurnBarrier(String name, long timeout, LoggerFacade logger)(Code)
Creates a new turn barrier starting with turn 0.
Parameters:
  name - the name of the barrier
Parameters:
  timeout - timeout for threads to wait for their turn
Parameters:
  logger - logger for debug output



TurnBarrier
public TurnBarrier(String name, long timeout, LoggerFacade logger, int startTurn)(Code)
Creates a new turn barrier.
Parameters:
  name - the name of the barrier
Parameters:
  timeout - timeout for threads to wait for their turn
Parameters:
  logger - logger for debug output
Parameters:
  startTurn - the turn to start with




Method Detail
reset
public synchronized void reset()(Code)
Starts the barrier over again. The next turn will be the one the barrier was started with.



signalTurn
public synchronized void signalTurn(int turnNumber)(Code)
Signals the next turn. Any thread waiting for the turn will be allowed to continue.
Parameters:
  turnNumber - the next turn number



waitForTurn
public synchronized void waitForTurn(int turnNumber) throws InterruptedException, RuntimeException(Code)
Blockingly waits for the given turn. If a timeout occurs a runtime exception will be thrown.
Parameters:
  turnNumber - the turn number to wait for
throws:
  InterruptedException - thrown if the thread is interrupted while waiting
throws:
  RuntimeException - thrown when timed out



Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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