@ModuleOption("how much to increment each bucket, as a SpEL against the message")
	public void setIncrementExpression(String incrementExpression) {
		this.incrementExpression = incrementExpression;
	}
Captures options for the {@code aggregate-counter} sink module.

@author Eric Bottard
spring-xd-analytics/src/main/java/org/springframework/xd/analytics/metrics/metadata/AggregateCounterSinkOptionsMetadata.java