Hello, I'm trying figure out how to use the annotation @Persist with
@PageActivationContext.
When purchaseRequest is null, I need to have the ability to create a new one
and persist it so that I can continue to set purchaseRequest with other ajax
components such as add row. I also need to be able to retrieve existing data
and once again persist the object for ajax interactions.
This is my code.
@PageActivationContext
@Persist
@Property
private PurchaseRequest purchaseRequest;
void pageReset() {
purchaseRequest = null
}
void onPrepare() {
if(purchaseRequest== null) {
purchaseRequest = new purchaseRequest();
}
}
Funding onAddRow() {
Funding newFunding = new Funding();
purchaseRequest.getFundings().add(newFunding);
newFunding.setPurchaseRequest(purchaseRequest);
return newFunding;
}
I'm getting the following error
java.lang.IllegalStateException
Entity com.mycompany.rolemanager.entities.PurchaseRequest@4a4890 has an id
property of null; this probably means that it has not been persisted yet.
#
org.apache.tapestry5.internal.hibernate.HibernateEntityValueEncoder.toClient(HibernateEntityValueEncoder.java:66)
#
org.apache.tapestry5.internal.services.ContextValueEncoderImpl.toClient(ContextValueEncoderImpl.java:37)
#
$ContextValueEncoder_130d6aa53f5.toClient($ContextValueEncoder_130d6aa53f5.java)
#
org.apache.tapestry5.internal.services.ContextPathEncoderImpl.encodeValue(ContextPathEncoderImpl.java:48)
#
org.apache.tapestry5.internal.services.ContextPathEncoderImpl.encodeIntoPath(ContextPathEncoderImpl.java:72)
#
$ContextPathEncoder_130d6aa53ea.encodeIntoPath($ContextPathEncoder_130d6aa53ea.java)
#
org.apache.tapestry5.internal.services.ComponentEventLinkEncoderImpl.appendContext(ComponentEventLinkEncoderImpl.java:339)
#
org.apache.tapestry5.internal.services.ComponentEventLinkEncoderImpl.createComponentEventLink(ComponentEventLinkEncoderImpl.java:198)
#
org.apache.tapestry5.internal.services.linktransform.LinkTransformerInterceptor.createComponentEventLink(LinkTransformerInterceptor.java:44)
Any help would be greatly appreciated.
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