Package jadex.commons.future

Class CollectionResultListener<E>

java.lang.Object

jadex.commons.future.CollectionResultListener<E>

All Implemented Interfaces:

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

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

Collection result listener collects a number of results and return a collection.

Field Summary

Fields

Modifier and Type	Field	Description
protected IResultListener<java.util.Collection<E>>	delegate	The delegate result listener.
protected boolean	ignorefailures	Flag to indicate that failures should be ignored and only valid results returned.
protected boolean	notified	Flag to indicate that the delegate already has been notified.
protected static java.lang.Object	NULL	Null object.
protected int	num	The number of sub listeners to wait for.
protected java.util.Collection<E>	results	The original result collection.
protected boolean	undone	The undone flag.

Constructor Summary

Constructors

Constructor	Description
CollectionResultListener(boolean ignorefailures, IResultListener<java.util.Collection<E>> delegate)	Create a new collection listener.
CollectionResultListener(int num, boolean ignorefailures, IResultListener<java.util.Collection<E>> delegate)	Create a new collection listener.
CollectionResultListener(int num, IResultListener<java.util.Collection<E>> delegate)	Create a new collection listener that stops on failures.
CollectionResultListener(IResultListener<java.util.Collection<E>> delegate)	Create a new collection listener that stops on failures.

Method Summary

Modifier and Type	Method	Description
protected boolean	checkNotify(E result, java.lang.Exception ex)	Check if the delegate should be notified.
void	exceptionOccurred(java.lang.Exception exception)	Called when an exception occurred.
void	exceptionOccurredIfUndone(java.lang.Exception exception)	Called when an exception occurred.
int	getResultCount()	Get the result count.
boolean	isUndone()	Get the undone.
protected void	notifyDelegate(java.lang.Exception exception)	Notify the delegate.
void	resultAvailable(E result)	Called when some result is available.
void	resultAvailableIfUndone(E result)	Called when the result is available.
void	setNumber(int num)	Set the expected number of results.

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.

results

protected java.util.Collection<E> results

The original result collection.

delegate

protected IResultListener<java.util.Collection<E>> delegate

The delegate result listener.

notified

protected boolean notified

Flag to indicate that the delegate already has been notified.

ignorefailures

protected boolean ignorefailures

Flag to indicate that failures should be ignored and only valid results returned.

undone

protected boolean undone

The undone flag.

NULL

protected static final java.lang.Object NULL

Null object.

Constructor Detail

CollectionResultListener

public CollectionResultListener(IResultListener<java.util.Collection<E>> delegate)

Create a new collection listener that stops on failures.

Parameters:

num - The expected number of results.

delegate - The delegate result listener.

CollectionResultListener

public CollectionResultListener(boolean ignorefailures,
                                IResultListener<java.util.Collection<E>> delegate)

Create a new collection listener.

Parameters:

num - The expected number of results.

ignorefailures - When set to true failures will be tolerated and just not be added to the result collection.

delegate - The delegate result listener.

CollectionResultListener

public CollectionResultListener(int num,
                                IResultListener<java.util.Collection<E>> delegate)

Create a new collection listener that stops on failures.

Parameters:

num - The expected number of results.

delegate - The delegate result listener.

CollectionResultListener

public CollectionResultListener(int num,
                                boolean ignorefailures,
                                IResultListener<java.util.Collection<E>> delegate)

Create a new collection listener.

Parameters:

num - The expected number of results.

ignorefailures - When set to true failures will be tolerated and just not be added to the result collection.

delegate - The delegate result listener.

Method Detail

resultAvailable

public void resultAvailable(E result)

Called when some 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.

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.

getResultCount

public int getResultCount()

Get the result count.

Returns:

The result count.

setNumber

public void setNumber(int num)

Set the expected number of results.

Parameters:

num - The expected number of results to set.

checkNotify

protected boolean checkNotify(E result,
                              java.lang.Exception ex)

Check if the delegate should be notified.

notifyDelegate

protected void notifyDelegate(java.lang.Exception exception)

Notify the delegate.