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

static class

PipelineExecutor.Results Results from a full pipeline execution.

Constructor Summary

PipelineExecutor(PipelinedDataPreloader preloader, PreloaderService preloaderService, Expressions expressions)

Method Summary

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