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**Isomorphic** · 28 May 2010, 07:32

Can you show this as a standalone test case, including the XML response?

**chodges** · 28 May 2010, 07:37

Yes I should be able to do that. Not sure if it matters but the data is all local so there really is no server-side response to speak of when this exception is being thrown.

But the data originally comes from the server as JSON. But here's the complete code for my data source to see if that sheds some light on things:

Code:

public class ListSource extends RestDataSource {

	private static ListSource instance = null;
	private static RestDataSource cachedInstance = null;
	
	public static ListSource getInstance(){
		if(instance == null){
								
			instance = new ListSource("DBList_DS");							
						
			instance.fetchData(new Criteria(),new DSCallback(){
				
				@Override
				public void execute(DSResponse response, Object rawData,
						DSRequest request) {
					
					cachedInstance = new RestDataSource();
					cachedInstance.setClientOnly(true);
					cachedInstance.setCacheAllData(true);
					cachedInstance.setInheritsFrom(instance);
					cachedInstance.setCacheData(response.getData());
					
				}
				
			});
			
		}
		
		return instance;
	}
	
	public static RestDataSource getCachedInstance(){
		return cachedInstance;
	}
	
	public void reloadCache(){
		
		instance.fetchData(new Criteria(),new DSCallback(){
			
			@Override
			public void execute(DSResponse response, Object rawData,
					DSRequest request) {
						
				cachedInstance.setCacheData(response.getData());
				
			}
			
		});
	}
	
	public ListSource(String id){
		setID(id);		
		setShowPrompt(false);
		setDataFormat(DSDataFormat.JSON);
		setDataProtocol(DSProtocol.POSTPARAMS);
		setClientOnly(false);
		setDataURL(Utils.constants.url());
		
		HashMap<String, String> m = new HashMap<String, String>();
		m.put("app", "lists");
		
		setDefaultParams(m);
		
		setAddDataURL(Utils.constants.url());
			
		DataSourceIntegerField idField = new DataSourceIntegerField("id");
		idField.setHidden(true);
		idField.setPrimaryKey(true);
				
		DataSourceIntegerField attribField = new DataSourceIntegerField("attributeID");
		attribField.setHidden(true);
		
		DataSourceTextField descriptionField = new DataSourceTextField("description","Description");
		
		DataSourceIntegerField parentField = new DataSourceIntegerField("parent");
		parentField.setHidden(true);
		
		DataSourceIntegerField editField = new DataSourceIntegerField("editable");
		editField.setHidden(true);
		
		setFields(idField,attribField,descriptionField,parentField,editField);
	}
}

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