public void setRestApiId(String restApiId) {
        this.restApiId = restApiId;
    }
<p>
The string identifier of the associated RestApi.
</p>

@param restApiId
       The string identifier of the associated RestApi.
aws-java-sdk-api-gateway/src/main/java/com/amazonaws/services/apigateway/model/UpdateRequestValidatorRequest.java