Duration using Java.Time in Java8--itemPropertyChanged(Unknown Source) -

Support
#1

I am trying to use the Java 8 time functionalities and have a problem.

First needed the Util date converted into Instance followed by using the Duration API.

Here is my code in controller:


   if("startDate".equals(e.getProperty()) || "endDate".equals(e.getProperty())){
                LocalDate fDate = productionPlanResourceDs.getItem().getStartDate().toInstant().atZone(ZoneId.systemDefault()).toLocalDate();
                LocalDate tDate = productionPlanResourceDs.getItem().getEndDate().toInstant().atZone(ZoneId.systemDefault()).toLocalDate();
                long days = Duration.between(fDate, tDate).toDays();
                productionPlanResourceDs.getItem().setDuration(days);
                productionPlanResourceDs.refresh();
            }

I am getting the following error in the line …“LocalDate fDate = …”


java.lang.UnsupportedOperationException
	at java.sql.Date.toInstant(Date.java:304)
	at com.company.gms.gui.productionplan.ProductionPlanEdit.lambda$init$1(ProductionPlanEdit.java:91)
	at com.company.gms.gui.productionplan.ProductionPlanEdit$$Lambda$103/110614814.itemPropertyChanged(Unknown Source)
	at com.haulmont.cuba.gui.data.impl.AbstractDatasource$ItemListener.propertyChanged(AbstractDatasource.java:333)
	at com.haulmont.chile.core.model.impl.AbstractInstance.propertyChanged(AbstractInstance.java:46)
	at com.company.gms.entity.ProductionPlanResource.setStartDate(ProductionPlanResource.java:99)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at com.haulmont.chile.core.model.utils.MethodsCache.invokeSetter(MethodsCache.java:58)
	at com.haulmont.chile.core.model.impl.AbstractInstance.setValue(AbstractInstance.java:126)
	at com.haulmont.cuba.core.entity.BaseGenericIdEntity.setValue(BaseGenericIdEntity.java:228)
	at com.haulmont.chile.core.model.impl.AbstractInstance.setValue(AbstractInstance.java:112)
	at com.haulmont.chile.core.model.utils.InstanceUtils.setValueEx(InstanceUtils.java:178)
	at com.haulmont.cuba.web.gui.components.WebDateField.updateInstance(WebDateField.java:284)
	at com.haulmont.cuba.web.gui.components.WebDateField.lambda$createDateValueChangeListener$50693cdd$1(WebDateField.java:101)
	at com.haulmont.cuba.web.gui.components.WebDateField$$Lambda$89/836028012.valueChange(Unknown Source)
	at sun.reflect.GeneratedMethodAccessor101.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:508)
	at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:198)
	at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:161)
	at com.vaadin.server.AbstractClientConnector.fireEvent(AbstractClientConnector.java:1008)
	at com.vaadin.ui.AbstractField.fireValueChange(AbstractField.java:1169)
	at com.vaadin.ui.DateField.fireValueChange(DateField.java:643)
	at com.vaadin.ui.AbstractField.setValue(AbstractField.java:577)
	at com.vaadin.ui.AbstractField.setValue(AbstractField.java:473)
	at com.vaadin.ui.DateField.setValue(DateField.java:719)
	at com.haulmont.cuba.web.toolkit.ui.CubaDateField.setValue(CubaDateField.java:66)
	at com.vaadin.ui.DateField.changeVariables(DateField.java:618)
	at com.haulmont.cuba.web.toolkit.ui.CubaDateField.changeVariables(CubaDateField.java:74)
	at com.vaadin.server.communication.ServerRpcHandler.changeVariables(ServerRpcHandler.java:609)
	at com.vaadin.server.communication.ServerRpcHandler.handleInvocations(ServerRpcHandler.java:428)
	at com.vaadin.server.communication.ServerRpcHandler.handleRpc(ServerRpcHandler.java:274)
	at com.vaadin.server.communication.UidlRequestHandler.synchronizedHandleRequest(UidlRequestHandler.java:79)
	at com.haulmont.cuba.web.sys.CubaVaadinServletService$CubaUidlRequestHandler.lambda$synchronizedHandleRequest$82(CubaVaadinServletService.java:306)
	at com.haulmont.cuba.web.sys.CubaVaadinServletService$CubaUidlRequestHandler$$Lambda$27/391421285.call(Unknown Source)
	at com.haulmont.cuba.web.sys.CubaVaadinServletService.withUserSession(CubaVaadinServletService.java:187)
	at com.haulmont.cuba.web.sys.CubaVaadinServletService$CubaUidlRequestHandler.synchronizedHandleRequest(CubaVaadinServletService.java:306)
	at com.vaadin.server.SynchronizedRequestHandler.handleRequest(SynchronizedRequestHandler.java:41)
	at com.vaadin.server.VaadinService.handleRequest(VaadinService.java:1409)
	at com.vaadin.server.VaadinServlet.service(VaadinServlet.java:369)
	at com.haulmont.cuba.web.sys.CubaApplicationServlet.serviceAppRequest(CubaApplicationServlet.java:242)
	at com.haulmont.cuba.web.sys.CubaApplicationServlet.service(CubaApplicationServlet.java:165)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
#2

Hi,
The described exception always occurs when the java.sql.Date.toInstant() method is called.
Use java.util.Date for the ‘StartDate’ - attribute of your entity and the code should work.

#3

Hi
I didn’t use java.sql.Date.

Used java.util.Date and java.time


  java.util.Date d1=productionPlanResourceDs.getItem().getStartDate();
                java.util.Date d2=productionPlanResourceDs.getItem().getEndDate();
                long days = Duration.between(d1, d2).toDays();

The last line above throughs exception – Temporal in Duration can’t be applied to java.util.Date

Do you have any code that worked to get the duration?

#4

Hi
I checked it again with documentations and found the codes that I have used is correct but it’s throughing unsupportedOpetaionException


java.lang.UnsupportedOperationException
	at java.sql.Date.toInstant(Date.java:304)
	at com.company.gms.gui.productionplan.ProductionPlanEdit.lambda$init$61(ProductionPlanEdit.java:99)
	at com.company.gms.gui.productionplan.ProductionPlanEdit$$Lambda$87/1215564899.itemPropertyChanged(Unknown Source)
	at com.haulmont.cuba.gui.data.impl.AbstractDatasource$ItemListener.propertyChanged(AbstractDatasource.java:333)
	at com.haulmont.chile.core.model.impl.AbstractInstance.propertyChanged(AbstractInstance.java:46)
	at com.company.gms.entity.ProductionPlanResource.setStartDate(ProductionPlanResource.java:114)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

When I compile, no error is found though.

Is this something not supported in CUBA or there is an alternative way of coding?

#5

Hi
Can anyone tell me what’s not right in my code? Thanks in advance.

#6

Looks like the new version of the Studio is now updated to work with java.sql.time and Date! Will have to give a fresh try…


Version 2.2.2

Improvements, including:

Support for java.sql.Time and java.sql.Date entity attribute types.
#7

Hi Mortoza,
These are not new Java 8 types, but old JDBC ones. The platform supports them to specify date-only and time-only values instead of using @Temporal annotation. And now Studio understands them too, but this is just for compatibility with manually created entities.