Handling of JAXB @XMLElements in Jackson

[Pawan Gandhi]

Hi All,

I am a bit new to Jackson and as of now struggling with deserializing a particular JSON request of the following format

{"SearchCriteria":{"SearchOperationList":[{"Name":"Products","Value": "Adalimumamb","Operator": "="}],"SearchEquation": [{"Name": "Products","Value":"Adalimumamb","Operator":"="}]}}

The SearchCriteria Java Class contains the following JAXB Annotation:

@XmlRootElement(name = "SearchCriteria")

public class SearchCriteriaType {

protected Object[] searchClause;

@XmlElements({@XmlElement(name = "SearchOperationList", type = SearchOperationType.class), @XmlElement(name = "SearchEquation", type = SearchAttributeType.class)})

public Object[] getSearchClause() {

return searchClause;

}

public void setSearchClause(Object[] searchClause) {

this.searchClause = searchClause;

}

}

The target of this implementation is to store both JSON Array Objects coming from "SearchOperationList" and "SearchEquation" into the same Object[] array

I get the following exception while the request is being processed.

Caused by: org.codehaus.jackson.map.exc.UnrecognizedPropertyException: Unrecognized field "SearchEquation" (Class SearchCriteriaType), not marked as ignorable

All this implementation is part of REST-full webservice using Apache CXF framework and JsonProvider being used is 

org.codehaus.jackson.jaxrs.JacksonJaxbJsonProvider

Jackson version is 1.9

Any help on how to achieve this would be appreciated.

TIA

Pawan

[Tatu Saloranta]

I don't think that approach will work: you are trying to do a complex transformation of a structure that does not match objects.

Why not design objects that actual match data here? You can transform data later on, but trying to figure out structural annotations by annotations gets complex very quickly.
If you instead just bound two lists into two distinct properties, it would be straight-forward and work reliably.

Or, use a Map<String, Object> to map any number of variations.

-+ Tatu +-

 

TIA

Pawan

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[Pawan Gandhi]

Thanks Tatu for the confirmation. I will look for alternatives