public RabbitSink routingKey(String routingKey) {
		this.routingKey = routingKey;
		return this;
	}
Sets the routing key that will be used to route messages to the appropriate key.

@param routingKey the routing key to be used by the fixture.
@return current instance of fixture
spring-xd-test-fixtures/src/main/java/org/springframework/xd/test/fixtures/RabbitSink.java