Package jadex.commons.future

Class CounterResultListener<E>

java.lang.Object

jadex.commons.future.CounterResultListener<E>

All Implemented Interfaces:

IFunctionalExceptionListener, IFunctionalResultListener<E>, IResultListener<E>, IUndoneResultListener<E>

public class CounterResultListener<E>
extends java.lang.Object
implements IResultListener<E>, IUndoneResultListener<E>

Counter result listener for counting a specified number of resultAvailable calls.

Field Summary

Fields

Modifier and Type	Field	Description
protected int	cnt	The number of received callbacks.
protected IResultListener<java.lang.Void>	delegate	The delegate result listener.
protected boolean	ignorefailures	The ignore failure flag.
protected IFunctionalResultListener<E>	intermediateResultListener	Listener that is called on intermediate results.
protected boolean	notified	Flag to indicate that the delegate already has been notified.
protected int	num	The number of sub listeners to wait for.
protected boolean	undone	The undone flag.

Constructor Summary

Constructors

Constructor	Description
CounterResultListener(int num, boolean ignorefailures, IResultListener<java.lang.Void> delegate)	Create a new counter listener.
CounterResultListener(int num, IResultListener<java.lang.Void> delegate)	Create a new counter listener.

Method Summary

Modifier and Type	Method	Description
void	exceptionOccurred(java.lang.Exception exception)	Called when an exception occurred.
void	exceptionOccurredIfUndone(java.lang.Exception exception)	Called when an exception occurred.
int	getCnt()	Get the current number of received results.
int	getNumber()	Get the number of results this Listener is waiting for.
boolean	intermediateExceptionOccurred(java.lang.Exception exception)	Method that can be overridden to do sth.
void	intermediateResultAvailable(E result)	Method that can be overridden to do sth.
boolean	isUndone()	Get the undone.
void	resultAvailable(E result)	Called when the result is available.
void	resultAvailableIfUndone(E result)	Called when the result is available.
void	setNumber(int num)	Set the number.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

num

protected int num

The number of sub listeners to wait for.

cnt

protected int cnt

The number of received callbacks.

delegate

protected IResultListener<java.lang.Void> delegate

The delegate result listener.

notified

protected boolean notified

Flag to indicate that the delegate already has been notified.

ignorefailures

protected boolean ignorefailures

The ignore failure flag.

undone

protected boolean undone

The undone flag.

intermediateResultListener

protected IFunctionalResultListener<E> intermediateResultListener

Listener that is called on intermediate results.

Constructor Detail

CounterResultListener

public CounterResultListener(int num,
                             IResultListener<java.lang.Void> delegate)

Create a new counter listener.

Parameters:

num - The number of sub callbacks.

CounterResultListener

public CounterResultListener(int num,
                             boolean ignorefailures,
                             IResultListener<java.lang.Void> delegate)

Create a new counter listener.

Parameters:

num - The number of sub callbacks.

Method Detail

resultAvailable

public void resultAvailable(E result)

Called when the result is available.

Specified by:

resultAvailable in interface IFunctionalResultListener<E>

Parameters:

result - The result.

exceptionOccurred

public void exceptionOccurred(java.lang.Exception exception)

Called when an exception occurred.

Specified by:

exceptionOccurred in interface IFunctionalExceptionListener

Parameters:

exception - The exception.

intermediateResultAvailable

public void intermediateResultAvailable(E result)

Method that can be overridden to do sth. on each result available call.

intermediateExceptionOccurred

public boolean intermediateExceptionOccurred(java.lang.Exception exception)

Method that can be overridden to do sth. on each exception that occurs.

Returns:

True, for retry the task (cnt is not increased);

getNumber

public int getNumber()

Get the number of results this Listener is waiting for.

Returns:

The expected number of results.

setNumber

public void setNumber(int num)

Set the number.

Parameters:

num - The number.

getCnt

public int getCnt()

Get the current number of received results.

Returns:

Number of results.

resultAvailableIfUndone

public void resultAvailableIfUndone(E result)

Called when the result is available.

Specified by:

resultAvailableIfUndone in interface IUndoneResultListener<E>

Parameters:

result - The result.

exceptionOccurredIfUndone

public void exceptionOccurredIfUndone(java.lang.Exception exception)

Called when an exception occurred.

Specified by:

exceptionOccurredIfUndone in interface IUndoneResultListener<E>

Parameters:

exception - The exception.

isUndone

public boolean isUndone()

Get the undone.

Returns:

The undone.