public void setEwsProvider(EwsAvailabilityProvider ewsProvider) {
        this.ewsProvider = ewsProvider;
    }
<p>
The EWS availability provider definition. The request must contain exactly one provider definition, either
<code>EwsProvider</code> or <code>LambdaProvider</code>. The previously stored provider will be overridden by the
one provided.
</p>

@param ewsProvider
       The EWS availability provider definition. The request must contain exactly one provider definition, either
       <code>EwsProvider</code> or <code>LambdaProvider</code>. The previously stored provider will be overridden
       by the one provided.
aws-java-sdk-workmail/src/main/java/com/amazonaws/services/workmail/model/UpdateAvailabilityConfigurationRequest.java