public boolean isTouchable() {
        if (touchable == null) {
            touchable = evalBooleanExpression(Constants.ContextParams.TOUCHABLE, true);
        }

        return touchable;
    }
Overrides eventually set ignoreAutoUpdate from client.
May be used e.g. combined with server-side update via <code>PrimeFaces.current().ajax().update("xxx")</code>
@param ignoreAutoUpdate
primefaces/src/main/java/org/primefaces/context/PrimeRequestContext.java