Ajax Framework Observer / Event

<div class="card">
    <h:form>
        <h:outputLabel for="name" value="Name" styleClass="mr-2" />
        <p:inputText id="name" value="#{observerView.text}">
            <p:ajax process="@this" update="@none" ignoreAutoUpdate="true"/>
        </p:inputText>

        <div class="my-3">
            <p:commandButton value="Update global" icon="pi pi-check" styleClass="mr-2" />
            <p:commandButton value="Update event1" update="@obs(event1)" icon="pi pi-check" styleClass="mr-2"/>
            <p:commandButton value="Update event2" update="@obs(event2)" icon="pi pi-check"/>
        </div>

        <h:outputText id="displayGlobal" value="Global: #{observerView.text}" styleClass="block mb-3">
            <p:autoUpdate/>
        </h:outputText>

        <h:outputText id="displayEvent1" value="Event1: #{observerView.text}" styleClass="block mb-3">
            <p:autoUpdate on="event1"/>
        </h:outputText>

        <h:outputText id="displayEvent2" value="Event2: #{observerView.text}" styleClass="block mb-3">
            <p:autoUpdate on="event2"/>
        </h:outputText>
    </h:form>
</div>