Revision: 9223
Author: [email protected]
Date: Mon Nov 15 09:22:36 2010
Log: Edited wiki page RequestFactory_2_1_1 through web user interface.
http://code.google.com/p/google-web-toolkit/source/detail?r=9223
Modified:
/wiki/RequestFactory_2_1_1.wiki
=======================================
--- /wiki/RequestFactory_2_1_1.wiki Mon Nov 8 10:58:24 2010
+++ /wiki/RequestFactory_2_1_1.wiki Mon Nov 15 09:22:36 2010
@@ -19,13 +19,12 @@
Stuff not yet published:
* (Issue 5522, issue 5357) Value types / Embedded objects
* A user-defined value object must extend the empty ValueProxy
interface and declare a @ProxyFor annotation.
- * This intentionally prevents the VP from being passed into
RequestContext.edit():
* ValueProxy instances are never sparse and will implement equals()
and hashCode() based on the values in the proxy.
* The VP will include the ids for any referenced EntityProxy fields,
but will not force data for the referenced EP's to be returned unless
there's a with() clause in play.
* A ValueProxy returned from an immutable EntityProxy is immutable.
The EntityProxy must be placed into an editable mode via the usual
RequestContext.edit() before you can make a call like
entityProxy.getValue().setFoo("bar").
- * A VP returned from a service method invocation is mutable, since
mutating it wouldn't be expected to alter the state of any EntityProxy.
- * The sometimes-mutable nature of a VP is slightly confusing, but it
can be resolved by asking: Did I get the ValueProxy from a getter or an
onSuccess()?
- * A new "Proxy" interface will be added as a superclass of ValueProxy
and EntityProxy to allow `RequestFactory.create` to operate on both value
and entity types.
+ * A VP returned from a service method invocation is immutable.
+ * A new RequestContext.edit() overload will be added to support
`valueObject.getEntityProxy().setFoo(42)`. If it were possible to place a
`ValueProxy` into an editable mode without a reference to a
`RequestContext`, it would be impossible for the mutable `ValueProxy` to
guarantee that its `EntityProxy` getters could return mutable objects.
+ * A new "BaseProxy" interface will be added as a superclass of
ValueProxy and EntityProxy to allow `RequestFactory.create` to operate on
both value and entity types.
* Because ValueProxy doesn't have a stableId() method, there's no way
to use a VP with a call to find() or with any other service method that has
an EntityProxyId argument.
* If you think about a Date object, there's no real meaning in
giving a Date an id.
* If an EntityProxy has a value property, all of the properties of the
VP are checked for mutations and sent to the server.
--
http://groups.google.com/group/Google-Web-Toolkit-Contributors
