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• 0.2.13
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com.google.appengine.tools.pipeline.package.html Maven / Gradle / Ivy

This is the App Engine Java Pipeline framework. See the

user's guide
for a fuller description.
The user should create one or more Jobs, which are subclasses of
of one of the {@code Jobn} classes, i.e. {@link
com.google.appengine.tools.pipeline.Job0 Job0}, {@link
com.google.appengine.tools.pipeline.Job1 Job1}, {@link
com.google.appengine.tools.pipeline.Job2 Job2}, etc.
In the Job class the user must define a run method. From
within the run method the user may invoke any of the family of
{@link
com.google.appengine.tools.pipeline.Job#futureCall(com.google.appengine.tools.pipeline.Job2,
com.google.appengine.tools.pipeline.Value,
com.google.appengine.tools.pipeline.Value,com.google.appengine.tools.pipeline.JobSetting...)
futureCall} methods passing the {@link
com.google.appengine.tools.pipeline.FutureValue FutureValues} returned from one
call into other calls in order to describe a child job-graph.
To start a new pipeline first obtain a {@link
com.google.appengine.tools.pipeline.PipelineService PipelineService} using
{@link
com.google.appengine.tools.pipeline.PipelineServiceFactory#newPipelineService()}
and then use one of the {@link
com.google.appengine.tools.pipeline.PipelineService#startNewPipeline(com.google.appengine.tools.pipeline.Job0,
com.google.appengine.tools.pipeline.JobSetting...)
PipelineService.startNewPipeline()} family of methods.