edu.stanford.nlp.util.concurrent
Class MulticoreWrapper<I,O>

java.lang.Object
  edu.stanford.nlp.util.concurrent.MulticoreWrapper<I,O>

Type Parameters:

I - input type

O - output type

public class MulticoreWrapper<I,O>
extends java.lang.Object

Provides convenient multicore processing for threadsafe objects. Objects that can be wrapped by MulticoreWrapper must implement the ThreadsafeProcessor interface. TODO(spenceg): Make lastSubmittedId and lastReturnedId threadsafe. Should support independent threads writing and reading from the queue.

Author:

Spence Green

Constructor Summary

MulticoreWrapper(int nThreads, ThreadsafeProcessor<I,O> processor)

Method Summary

boolean	hasNext() Indicates whether a not a new result is available.
boolean	join() Waits for all active processes to finish, then returns true only if all results have been returned via calls to next().
O	next() Returns the next available result.
void	submit(I inputInstance) Allocate instance to a process and return.

Methods inherited from class java.lang.Object

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

Constructor Detail

MulticoreWrapper

public MulticoreWrapper(int nThreads,
                        ThreadsafeProcessor<I,O> processor)

Method Detail

submit

public void submit(I inputInstance)

Allocate instance to a process and return. This call blocks until I can be assigned to a thread.

Parameters:

inputInstance -

join

public boolean join()

Waits for all active processes to finish, then returns true only if all results have been returned via calls to next().

Returns:

True on successful shutdown, false otherwise.

hasNext

public boolean hasNext()

Indicates whether a not a new result is available.

Returns:

true if a new result is available, false otherwise.

next

public O next()

Returns the next available result.

Returns: