@ModuleOption("enable transfer rate interval")
	public void setRateInterval(int rateInterval) {
		this.rateInterval = rateInterval;
	}
Config options for gpfdist sink.

@author Janne Valkealahti
extensions/spring-xd-extension-gpfdist/src/main/java/org/springframework/xd/greenplum/config/GPFDistSinkOptionsMetadata.java