public void unbind() {
		if (sink != null) {
			sink.unbind();
		}
		if (source != null) {
			source.unbind();
		}
	}
A helper class for building single node streams that use a {@link NamedChannelSource} and {@link NamedChannelSink}.

@author David Turanski
spring-xd-dirt/src/main/java/org/springframework/xd/dirt/test/process/AbstractSingleNodeProcessingChain.java