@ModuleOption("the storage level for spark streaming RDD persistence")
	public void setStorageLevel(final String storageLevel) {
		this.storageLevel = storageLevel;
	}
Default module options for {@link org.springframework.xd.spark.streaming.SparkStreamingSupport}.
Both the java and scala based implementations can extend this.

@author Ilayaperumal Gopinathan
spring-xd-spark-streaming/src/main/java/org/springframework/xd/spark/streaming/DefaultSparkStreamingModuleOptionsMetadata.java