> PS. Which version of Cayenne are you using?
Cayenne 3.1B1, Tapestry 5.3.6 and tapestry5-cayenne-server 0.5-SNAPSHOT
> PPS. Don't use CayenneService as a DAO for deleting/saving, either.
I don't even know what CayenneService is ;)
For deleting/committing I inject an ObjectContext (with annotation @OCType(...)
or ObjectContextProvider from tapestry5-cayenne-server
> public class TapestryCayenneService
> {
> @Inject @Symbol(value="...") ...
>
> public Foo newFoo(ObjectContext oc)
> {
> Foo foo = oc.newObject(Foo.class);
> // Set values in foo from injected symbols...
> return foo;
> }
I don't actually need the symbol to set database backed values. The setters are
mostly in the classes auto generated by the CayenneModeler.
I need the value in other get methods, to return a value that would be the
symbol concatenated with a property of the object.
For example:
public class Foo extends _Foo {
@Inject @Symbol(value="...")
public String getAbsoluteLocalFilepath(String baseDir) {
return baseDir + "/" + getUserId() + "/" + getFilename();
}
}
My problem ties into another problem: accessing files outside of webapp.
> The other approach would be to use a servlet filter, which is much
> more complex. You'd probably have to register a thread local to bind
> your Tapestry symbol values into and then retrieve them inside your
> CayenneDataObject subclasses (Foo, Bar, etc) using a lifecycle
> callback. I think this approach would be more work and more magic
> (harder to implement and understand/maintain later), but if you would
> like to explore this avenue instead of a Tapestry service, just ask.
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