@ModuleOption("the login name that has rights to send data to the tcpPort")
	public void setUsername(String username) {
		this.username = username;
	}
Captures options to the {@code splunk} sink module.

@author Eric Bottard
extensions/spring-xd-extension-splunk/src/main/java/org/springframework/xd/splunk/SplunkSinkOptionsMetadata.java