org.apache.shindig.gadgets.preload

Class PipelineExecutor

java.lang.Object

org.apache.shindig.gadgets.preload.PipelineExecutor

public class PipelineExecutor
extends Object

Runs data pipelining, chaining dependencies among batches as needed.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	PipelineExecutor.Results Results from a full pipeline execution.

Constructor Summary

Constructors

Constructor and Description
PipelineExecutor(PipelinedDataPreloader preloader, PreloaderService preloaderService, Expressions expressions)

Method Summary

Methods

Modifier and Type	Method and Description
PipelineExecutor.Results	execute(GadgetContext context, Collection<PipelinedData> pipelines) Executes a pipeline, or set of pipelines.

Methods inherited from class java.lang.Object

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

Constructor Detail

PipelineExecutor

@Inject
public PipelineExecutor(PipelinedDataPreloader preloader,
                       PreloaderService preloaderService,
                       Expressions expressions)

Method Detail

execute

public PipelineExecutor.Results execute(GadgetContext context,
                               Collection<PipelinedData> pipelines)

Executes a pipeline, or set of pipelines.

Parameters:

context - the gadget context for the state in which the pipelines execute

pipelines - a collection of pipelines

Returns:

results from the pipeline, or null if there are no results