code: public void setDomainNames(java.util.Collection<String> domainNames) {
          if (domainNames == null) {
              this.domainNames = null;
              return;
          }
  
          this.domainNames = new com.amazonaws.internal.SdkInternalList<String>(domainNames);
      }
docs: A list of domain names that match the expression.
  
  @param domainNames
  A list of domain names that match the expression.