@JsonTypeInfo(use=JsonTypeInfo.Id.MINIMAL_CLASS, include=JsonTypeInfo.As.PROPERTY, property="type")

[Benson Margulies]

I'm a bit bewildered.

I have the subject annotation on an abstract class.

I'm trying to read a YAML file that has a type property, but no polymorphic processing seems to be happening.

I've explicitly declared 'type' as a property of the abstract class; it's a constructor arg with

@JsonProperty("type").

I get...

Caused by: com.fasterxml.jackson.databind.JsonMappingException: Could not find creator property with name 'type' (in class com.basistech.wsbus.config.Reporting)

 at [Source: java.io.BufferedInputStream@4b7689bc; line: 5, column: 1]

at com.fasterxml.jackson.databind.JsonMappingException.from(JsonMappingException.java:164)

at com.fasterxml.jackson.databind.DeserializationContext.mappingException(DeserializationContext.java:757)

at com.fasterxml.jackson.databind.deser.BeanDeserializerFactory.addBeanProps(BeanDeserializerFactory.java:579)

at com.fasterxml.jackson.databind.deser.BeanDeserializerFactory.buildBeanDeserializer(BeanDeserializerFactory.java:270)

at com.fasterxml.jackson.databind.deser.BeanDeserializerFactory.createBeanDeserializer(BeanDeserializerFactory.java:168)

at com.fasterxml.jackson.databind.deser.DeserializerCache._createDeserializer2(DeserializerCache.java:399)

[Tatu Saloranta]

It'd be necessary to see the whole bean. Exception message as is does not right a bell. Or, stand-alone unit test would be the best option of course, if it's possible to isolate.

-+ Tatu +-

--
You received this message because you are subscribed to the Google Groups "jackson-user" group.
To unsubscribe from this group and stop receiving emails from it, send an email to jackson-user...@googlegroups.com.
To post to this group, send email to jackso...@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

[Benson Margulies]

I was trying to use a constructor with a jsoncreator annotation. When I switched to fields all was well.

[Tatu Saloranta]

Ok. Let me know if problem re-surfaces, sounds like some kind of discrepancy that should not exist. But glad that you were able to work around it.

-+ Tatu +-

[Benson Margulies]

On Tue, Aug 19, 2014 at 9:16 PM, Tatu Saloranta <tsalo...@gmail.com> wrote:

Ok. Let me know if problem re-surfaces, sounds like some kind of discrepancy that should not exist. But glad that you were able to work around it.

Somewhere on one of your pages I found advice not to try to combine polymorphism and @JsonCreator :-) 

[Tatu Saloranta]

Correct, that combination has proven challenging due to multiple reasons.

-+ Tatu +-