public String getSourceFrequency() {
        return this.sourceFrequency;
    }
<p>
Specifies how often evidence is collected from the control mapping source.
</p>

@return Specifies how often evidence is collected from the control mapping source.
@see SourceFrequency
aws-java-sdk-auditmanager/src/main/java/com/amazonaws/services/auditmanager/model/ControlMappingSource.java