Package org.aksw.jenax.graphql.sparql

Class AsyncCombiner<I,O>

java.lang.Object

org.aksw.jenax.graphql.sparql.AsyncCombiner<I,O>

public class AsyncCombiner<I,O>
extends Object

Assemble a result from a collection of async contributions. A small wrapper around guava's Futures API.

Example:

 
   ListenableFuture<Y> future =
    AsyncCombiner.of(executorService, combineXsIntoY)
     .addTask(a).addTask(b)
     .exec() 
 

Field Summary

Fields

Modifier and Type	Field	Description
protected Function<List<I>,O>	combiner
protected com.google.common.util.concurrent.ListeningExecutorService	executorService
protected List<Callable<I>>	tasks

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AsyncCombiner(com.google.common.util.concurrent.ListeningExecutorService executorService, Function<List<I>,O> combiner)

Method Summary

Modifier and Type	Method	Description
AsyncCombiner<I,O>	addTask(Callable<I> task)
com.google.common.util.concurrent.ListenableFuture<O>	exec()
static <I, O> AsyncCombiner<I,O>	of(com.google.common.util.concurrent.ListeningExecutorService executorService, Function<List<I>,O> combiner)
static <I, O> AsyncCombiner<I,O>	of(ExecutorService executorService, Function<List<I>,O> combiner)

Methods inherited from class java.lang.Object

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

Field Details

executorService

protected com.google.common.util.concurrent.ListeningExecutorService executorService

combiner

protected Function<List<I>,O> combiner

tasks

protected List<Callable<I>> tasks

Constructor Details

AsyncCombiner

protected AsyncCombiner(com.google.common.util.concurrent.ListeningExecutorService executorService,
 Function<List<I>,O> combiner)

Method Details

of

public static <I,
O> AsyncCombiner<I,O> of(ExecutorService executorService,
 Function<List<I>,O> combiner)

of

public static <I,
O> AsyncCombiner<I,O> of(com.google.common.util.concurrent.ListeningExecutorService executorService,
 Function<List<I>,O> combiner)

addTask

public AsyncCombiner<I,O> addTask(Callable<I> task)

exec

public com.google.common.util.concurrent.ListenableFuture<O> exec()