Package generic.concurrent

Class QResult<I,R>

java.lang.Object

generic.concurrent.QResult<I,R>

Type Parameters:

I - the type of the items in the ConcurrentQ.

R - the type of objects returned from processing an item in a ConcurrentQ.

public class QResult<I,R>
extends Object

Class for holding the result of processing an Item in a ConcurrentQ.

Constructor Summary

Constructors

Constructor	Description
QResult(I item, Future<R> future)

Method Summary

Modifier and Type	Method	Description
Exception	getError()	Returns any Exception that was encountered during processing of the item
I	getItem()	Returns the item that was processed.
R	getResult()	The result from processing the item.
boolean	hasError()	Returns true if the item encountered an error while processing the item.
boolean	isCancelled()	Returns true if the item's processing was cancelled.

Methods inherited from class java.lang.Object

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

Constructor Details

QResult

public QResult(I item,
 Future<R> future)

Method Details

getItem

public I getItem()

Returns the item that was processed.

Returns:

the item that was processed.

getResult

public R getResult()
            throws Exception

The result from processing the item. Will be null if the item was cancelled or had an error.

Returns:

the result from processing the item or null if it did not complete successfully.

Throws:

Exception - any exception that was thrown during the processing of the input item

getError

public Exception getError()

Returns any Exception that was encountered during processing of the item

Returns:

any Exception that was encountered during processing of the item

hasError

public boolean hasError()

Returns true if the item encountered an error while processing the item.

Returns:

true if the item encountered an error while processing the item.

isCancelled

public boolean isCancelled()

Returns true if the item's processing was cancelled.

Returns:

true if the item's processing was cancelled.