@ModuleOption("the private key location (a valid Spring Resource URL)")
	public void setPrivateKey(String privateKey) {
		this.privateKey = privateKey;
	}
Module options for SFTP source module.

@author Ilayaperumal Gopinathan
@author Eric Bottard
@author Gary Russell
spring-xd-dirt/src/main/java/org/springframework/xd/dirt/modules/metadata/SftpSourceOptionsMetadata.java