I am building a project where I have a datamodel as shown below.
//there are few more params, just showing the basic structure
String title;Set<B> child;
//set of keys is storedSet<D> d;Set<Long> count;
String name;String country;
As I am using Spring-Roo for generating my entites it automatically only store only keys/ primary id's of the referencing entities.
All entities are rendered using custom widgets. I am using Editor frramework to edit the entities.
On my parent View (which displays Entity A), I have a save button, on click I persists all the children (B, C) and the parent Currently I make individual calls to persist each entity set in the datastore.
I have two challenges
1. Can I combine the request to persist all of these entities into a single call using entitygroups? Can this be achieved using RequestContext & RequestFactory framework. Any advice/ suggestions would be much appreciated
2. If I go with my current approach of saving all entities separately, even though it works well, the implementation becomes messy when I have to re-edit the Objects. for example, I had to display details of Object A in my home page, so I fetched A from datastore, while doing so I used the with clause as below
now if I pass this retrieved proxy to the editor framework, it not only sets the object A to edit mode, it also sets the Object B to edit. Without entity groups, I cannot persist any changes to B along with A. The only way for me to save B (using my current approach to save entities separately) is to use AutoBeanUtils and freeze the entity B, dis-associate the requestContext reference and re-edit it using a different requestContext.
This approach works, but i feel its messy and there should be a better and cleaner approach to achieve data persistance.
Appreciate all your advice/ suggestions.
You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group.
To post to this group, send email to firstname.lastname@example.org.
To unsubscribe from this group, send email to email@example.com.
For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.