/**
* Removes the <code>TupleSink</code>
*
* @param tupleSink The <code>TupleSink</code> to remove
*/
public void removeTupleSink(final LeftTupleSink tupleSink) {
if (this.sink instanceof EmptyLeftTupleSinkAdapter) {
throw new IllegalArgumentException("Cannot remove a sink, when the list of sinks is null");
}
if (this.sink instanceof SingleLeftTupleSinkAdapter) {
this.sink = EmptyLeftTupleSinkAdapter.getInstance();
} else {
final CompositeLeftTupleSinkAdapter sinkAdapter = (CompositeLeftTupleSinkAdapter) this.sink;
sinkAdapter.removeTupleSink(tupleSink);
if (sinkAdapter.size() == 1) {
this.sink =
new SingleLeftTupleSinkAdapter(this.getPartitionId(), sinkAdapter.getSinks()[0]);
}
}
}
protected LeftTupleSinkPropagator addTupleSink(
final LeftTupleSinkPropagator sinkPropagator,
final LeftTupleSink tupleSink,
final BuildContext context) {
if (sinkPropagator instanceof EmptyLeftTupleSinkAdapter) {
// otherwise, we use the lighter synchronous propagator
return new SingleLeftTupleSinkAdapter(this.getPartitionId(), tupleSink);
}
if (sinkPropagator instanceof SingleLeftTupleSinkAdapter) {
CompositeLeftTupleSinkAdapter sinkAdapter =
new CompositeLeftTupleSinkAdapter(this.getPartitionId());
sinkAdapter.addTupleSink(sinkPropagator.getSinks()[0]);
sinkAdapter.addTupleSink(tupleSink);
return sinkAdapter;
}
((CompositeLeftTupleSinkAdapter) sinkPropagator).addTupleSink(tupleSink);
return sinkPropagator;
}