@ModuleOption("name for the key")
	public void setKey(String key) {
		this.key = key;
		this.keyExpression = "'" + this.key + "'";
	}
Options metadata for Redis sink module.

@author Ilayaperumal Gopinathan
spring-xd-dirt/src/main/java/org/springframework/xd/dirt/modules/metadata/RedisSinkOptionsMetadata.java