public void setTemplateMajorVersion(String templateMajorVersion) {
        this.templateMajorVersion = templateMajorVersion;
    }
<p>
The major version of the service template to update.
</p>

@param templateMajorVersion
       The major version of the service template to update.
aws-java-sdk-proton/src/main/java/com/amazonaws/services/proton/model/UpdateServiceInstanceRequest.java