I'm trying out the data management service. I've developed a very
simple example but I'm having a problem with the data types. When I
change the data, my updateItem method is being called but I cannot
cast them to their proper data types. I get the following error:
[RPC Fault faultString="Could not invoke sync method on data adapter
for destination 'wishlist' due to the following error: class
java.lang.ClassCastException:flex.messaging.io.amf.ASObject."
faultCode="Server.Processing" faultDetail="null"]
at
mx.data::ConcreteDataService/http://www.adobe.com/2006/flex/mx/internal::dispatchFaultEvent()[C:\dev\enterprise_gmc\frameworks\mx\data\ConcreteDataService.as:1602]
at
mx.data::CommitResponder/fault()[C:\dev\enterprise_gmc\frameworks\mx\data\CommitResponder.as:167]
at
mx.rpc::AsyncRequest/fault()[C:\dev\enterprise_gmc\frameworks\mx\rpc\AsyncRequest.as:107]
at
NetConnectionChannel.as$37::NetConnectionMessageResponder/NetConnectionChannel.as$37:NetConnectionMessageResponder::statusHandler()[C:\dev\enterprise_gmc\frameworks\mx\messaging\channels\NetConnectionChannel.as:458]
at
mx.messaging::MessageResponder/status()[C:\dev\enterprise_gmc\frameworks\mx\messaging\MessageResponder.as:225]
Perhaps I've missed a step or I have cocnfiguration problems. I'll
post some code below. Please let me know if you can spot any problems.
data-management-config.xml:
===========================================================
<?xml version="1.0" encoding="UTF-8"?>
<service id = "data-service"
class = "flex.data.DataService"
messageTypes = "flex.data.messages.DataMessage">
<adapters>
<adapter-definition id = "actionscript" class =
"flex.data.adapters.ASObjectAdapter" default = "true" />
<adapter-definition id = "java-dao" class =
"flex.data.adapters.JavaAdapter" />
</adapters>
<default-channels>
<channel ref = "my-rtmp" />
</default-channels>
<destination id = "wishlist">
<adapter ref = "java-dao" />
<properties>
<source>com.test.flex.assemblers.WishListAssembler</source>
<scope>application</scope>
<cache-items>true</cache-items>
<metadata>
<identity property = "id" />
</metadata>
<network>
<session-timeout>20</session-timeout>
<paging enabled = "true" pageSize = "10" />
<throttle-inbound policy = "ERROR" max-frequency = "500" />
<throttle-outbound policy = "REPLACE" max-frequency = "500" />
</network>
</properties>
</destination>
</service>
Assembler:
===========================================================
package com.test.flex.assemblers;
import com.test.flex.util.SpringUtils;
import com.test.wishlist.data.model.Item;
import com.test.wishlist.data.service.ItemService;
import com.test.wishlist.ws.StoreIndex;
import flex.data.assemblers.AbstractAssembler;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import java.util.List;
public class WishListAssembler extends AbstractAssembler {
private static Log log = LogFactory.getLog(WishListAssembler.class);
ItemService itemService
public WishListAssembler() {
super();
this.itemService = (ItemService) SpringUtils.getBean("itemService");
}
@Override
public List<Item> fill(List list) {
List<Item> results = itemService.findByKeywordsAndStore("j2ee",
StoreIndex.BOOKS);
return results;
}
@Override
public void updateItem(Object currentObject, Object previousObject,
List changes) {
Item current = (Item)currentObject;
Item previous = (Item)previousObject;
if (log.isDebugEnabled()) {
log.debug("new object: " + current);
log.debug("previous object: " + previous);
log.debug("changes: " + changes);
}
}
}
AS model object:
===========================================================
package com.test.wishlist.model {
import com.test.common.model.GenericEntity;
[Managed]
[RemoteClass(alias="com.test.wishlist.data.model.Item")]
public class Item extends GenericEntity {
public var price:Number;
public var name:String;
public var url:String;
}
}
MXML init method:
===========================================================
[Bindable]
public var items:ArrayCollection;
public function initApp():void {
items = new ArrayCollection();
wishListDs = new DataService("wishlist");
wishListDs.fill(items);
}
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