org.apache.shindig.gadgets.preload

Class ConcurrentPreloaderService

java.lang.Object

org.apache.shindig.gadgets.preload.ConcurrentPreloaderService

All Implemented Interfaces:

PreloaderService

public class ConcurrentPreloaderService
extends Object
implements PreloaderService

Preloads will be fetched concurrently using the injected ExecutorService, and they can be read lazily using the returned map of futures. The last preloaded object always executes in the current thread to avoid creating unnecessary additional threads when we're blocking the current request anyway.

Constructor Summary

Constructors

Constructor and Description
ConcurrentPreloaderService(ExecutorService executor, Preloader preloader)

Method Summary

Methods

Modifier and Type	Method and Description
Collection<PreloadedData>	preload(Collection<Callable<PreloadedData>> tasks) Execute preloads with a specific set of preload tasks.
Collection<PreloadedData>	preload(Gadget gadget) Begin all preload operations.

Methods inherited from class java.lang.Object

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

Constructor Detail

ConcurrentPreloaderService

@Inject
public ConcurrentPreloaderService(ExecutorService executor,
                                 Preloader preloader)

Method Detail

preload

public Collection<PreloadedData> preload(Gadget gadget)

Description copied from interface: PreloaderService

Begin all preload operations.

Specified by:

preload in interface PreloaderService

Parameters:

gadget - The gadget that the operations will be performed for.

Returns:

The preloads for the gadget.

preload

public Collection<PreloadedData> preload(Collection<Callable<PreloadedData>> tasks)

Description copied from interface: PreloaderService

Execute preloads with a specific set of preload tasks.

Specified by:

preload in interface PreloaderService