JPA Container - Filter problem

I have a JPA container, and I am trying to add a couple of filters to it (not necessarily at the same time). In both cases, the filter is a text string, and the code to add the filters looks like this:

jc_RRD_Record.addNestedContainerProperty("trafficReport.desc");  
...
...
        private void applyDescFilter(){
		String fString = txt_Desc_Filter.getValue() + "%";
		Filter f = Filters.like("trafficReport.desc", fString, false);
		jc_RRD_Record.addFilter(f);
	}
	
	private void applyRRDFilter(){
		String fString = txt_RRD_Filter.getValue() + "%";
		Filter f = Filters.like("rPath", fString, false);
		jc_RRD_Record.addFilter(f);
	}

A call to the second filter (on rPath) works. The first one fails with this error:

SEVERE: Terminal error:
com.vaadin.event.ListenerMethod$MethodException
Cause: java.lang.IllegalArgumentException: Invalid filter
	at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:532)
	at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:164)
	at com.vaadin.ui.AbstractComponent.fireEvent(AbstractComponent.java:1219)
	at com.vaadin.ui.AbstractField.fireValueChange(AbstractField.java:922)
	at com.vaadin.ui.AbstractField.setValue(AbstractField.java:559)
	at com.vaadin.ui.AbstractTextField.changeVariables(AbstractTextField.java:242)
	at com.vaadin.terminal.gwt.server.AbstractCommunicationManager.changeVariables(AbstractCommunicationManager.java:1445)
	at com.vaadin.terminal.gwt.server.AbstractCommunicationManager.handleVariableBurst(AbstractCommunicationManager.java:1393)
	at com.vaadin.terminal.gwt.server.AbstractCommunicationManager.handleVariables(AbstractCommunicationManager.java:1312)
	at com.vaadin.terminal.gwt.server.AbstractCommunicationManager.doHandleUidlRequest(AbstractCommunicationManager.java:763)
	at com.vaadin.terminal.gwt.server.CommunicationManager.handleUidlRequest(CommunicationManager.java:296)
	at com.vaadin.terminal.gwt.server.AbstractApplicationServlet.service(AbstractApplicationServlet.java:501)
	at org.vaadin.artur.icepush.ICEPushServlet.service(ICEPushServlet.java:72)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)
	at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.IllegalArgumentException: Invalid filter
	at com.vaadin.addon.jpacontainer.filter.util.AdvancedFilterableSupport.addFilter(AdvancedFilterableSupport.java:182)
	at com.vaadin.addon.jpacontainer.JPAContainer.addFilter(JPAContainer.java:746)
	at com.verisign.jart.window.Win_AddGraphs.applyDescFilter(Win_AddGraphs.java:354)
	at com.verisign.jart.window.Win_AddGraphs.access$12(Win_AddGraphs.java:351)
	at com.verisign.jart.window.Win_AddGraphs$4.valueChange(Win_AddGraphs.java:214)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:512)
	... 25 more

The only difference I can see is that the rPath field comes directly from the table associated with the JPAContainer. The description column is a generated column (a foreign key field). Can someone tell me what I need to do to get the first filter to work properly?

At one time, I think I had this working - but I don't remember changing anything in this area of the code... I'm guessing I've done something really dumb...

thanks very much,

nbc

After much digging, I found the correct way to create a one-to-one mapping, and that seems to have solved this issue. I had a many-to-one mapping of the TrafficReport object and it should be one-to-one. Fixing this seems to have made the problem go away.

For the record, the code looks like this:

In the RRDRecord class:

@OneToOne(mappedBy="rrdRecord",fetch=FetchType.EAGER)
private TrafficReport trafficReport;

and in the TrafficReport object:

@OneToOne
@PrimaryKeyJoinColumn
private RrdRecord rrdRecord;

This, along with the appropriate getters and setters seems to work.

nbc