| Thanks Chuck and Jesse.
I think I understand the term lazy synchronization and it makes totally sense.
But, how to handle a case like this:
Three entities and their relationships:
User <-----> Address Client <-----> Address
I create a reusable component named EditAddress and use it inside two other components: EditUser and EditClient. I would pass the Address object via a binding.
In the EditAddress I would use WOTextFields connected to the address' parameters: address.country, address.state, etc.
How could I do that with lazy synchronization?
Thanks.
Miguel Torres
Hi Miguel,
On 2012-08-21, at 11:19 AM, WebObjects TORAcom wrote:
Hi List,
I am trying to implement best practices in our applications, we want to take control of component's binding syncrhonization.
First of all I understand that we should override the synchronizesVariablesWithBindings function like this:
public boolean synchronizesVariablesWithBindings() {
return false;
}
But where in the request - response loop should be the better place to synchronize our bindings, a lot of time ago (years) somewhere in the internet I found info that recommends Pull binding's values in the takeValuesFromRequest(WORequest r, WOContext c) method and Push binding's values in the appendToResponse(WOResponse r, WOContext c).
I am not sure about that, so we have been working with the automatic synchronization of our bindings.
I usually do lazy synchronization, and only do what I need. Something like this:
private String exampleValue;
public void awake() {
super.awake();
exampleValue = null;
}
public String exampleValue() {
if (exampleValue == null) {
exampleValue = stringValueForBinding("exampleValue");
}
return exampleValue;
}
public void setExampleValue(String newValue) {
if (ERXExtensions.saveDifferent(exampleValue, newValue) {
setValueForBinding(newValue, "exampleValue");
exampleValue = newValue;
}
}
Chuck
--
Chuck Hill Senior Consultant / VP Development
Practical WebObjects - for developers who want to increase their overall knowledge of WebObjects or who are trying to solve specific problems.
http://www.global-village.net/gvc/practical_webobjects
|