private boolean mustSendItemsetUpdate(
PropertyContext propertyContext, XFormsSelect1Control otherSelect1Control) {
if (getSelectionControl().hasStaticItemset()) {
// There is no need to send an update:
//
// 1. Items are static...
// 2. ...and they have been outputted statically in the HTML page, directly or in repeat
// template
return false;
} else if (isStaticReadonly()) {
// There is no need to send an update for static readonly controls
return false;
} else {
// There is a possible change
if (XFormsSingleNodeControl.isRelevant(otherSelect1Control) != isRelevant()) {
// Relevance changed
// Here we decide to send an update only if we become relevant, as the client will know that
// the
// new state of the control is non-relevant and can handle the itemset on the client as it
// wants.
return isRelevant();
} else if (!XFormsSingleNodeControl.isRelevant(this)) {
// We were and are non-relevant, no update
return false;
} else {
// If the itemsets changed, then we need to send an update
// NOTE: This also covers the case where the control was and is non-relevant
return !Itemset.compareItemsets(
otherSelect1Control.getItemset(propertyContext), getItemset(propertyContext));
}
}
}
