CODEWITHSUNDEEP
javaxmlhibernatejaxbmoxy
Prats
Prats

Reputation: 1525

Error while implementing MOXy's

I was getting a cyclic error in my DTO classes, so decided to implement MOXy's to get rid of it. I followed the following steps for implementing MOXy's:

  1. Downloaded EclipseLink from [http://www.eclipse.org/eclipselink/downloads/nightly.php]

  2. Copied all the JARs from /eclipselink/jlib folder to my /WEB-INF/lib

  3. For Specifying EclipseLink MOXy as the JAXB provider created a jaxb.properties file in the folder where all classes are present with following entry in it -

    javax.xml.bind.context.factory=org.eclipse.persistence.jaxb.JAXBContextFactory

I am using @XmlElement and @XmlInverseReference annotations in my dto classes but I am getting following error while I am running my application:

javax.ws.rs.WebApplicationException: com.sun.xml.bind.v2.runtime.IllegalAnnotationsException: 1 counts of IllegalAnnotationExceptions, Class has two properties of the same name "application"
this problem is related to the following location:
    at public thbs.provisioning.dto.ApplicationDTO thbs.provisioning.dto.EnvironmentDTO.getApplication()
    at thbs.provisioning.dto.EnvironmentDTO
    at public java.util.Set thbs.provisioning.dto.ApplicationDTO.getEnvironment()
    at thbs.provisioning.dto.ApplicationDTO
this problem is related to the following location:
    at private thbs.provisioning.dto.ApplicationDTO thbs.provisioning.dto.EnvironmentDTO.application
    at thbs.provisioning.dto.EnvironmentDTO
    at public java.util.Set thbs.provisioning.dto.ApplicationDTO.getEnvironment()
    at thbs.provisioning.dto.ApplicationDTO

Upvotes: 2

Views: 480

Answers (2)

bdoughan
bdoughan

Reputation: 149017

To address your followup question where you are getting the wrong output. The mapping for the environmentproperty on your ApplicationDTO is wrong. You could do one of the following:

Option #1 - @XmlElementRef

If you use the @XmlElementRef annotation the element name for this property will be based on the @XmlRootElement annotation on the target class.

@OneToMany(mappedBy = "application", fetch = FetchType.LAZY, cascade = CascadeType.ALL)
@XmlElementRef
public Set<EnvironmentDTO> getEnvironment() {
    return environment;
}

Option #2 - @XmlElement

Alternatively you can use the @XmlElement annotation to specify the element that should be used for the property.

@OneToMany(mappedBy = "application", fetch = FetchType.LAZY, cascade = CascadeType.ALL)
@XmlElement(name="environmentDTO")
public Set<EnvironmentDTO> getEnvironment() {
    return environment;
}

EDIT:

@GET
@Path("/get")
@Produces({MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML})
public List<ApplicationDTO> getAllApplications(){
    List<ApplicationDTO> allApplication = applicationService.getAllApplication();
    return allApplication;
}

From here flow comes to the following class:

@Override
public List<ApplicationDTO> getAllApplication() {

    List<ApplicationDTO> AppList = genericDAOTxService.findAll(ApplicationDTO.class);   
    return AppList;     
}

Than to the following class:

@Override
@Transactional(rollbackFor = java.lang.Exception.class, noRollbackFor = java.io.FileNotFoundException.class, propagation = Propagation.REQUIRES_NEW)
public <T> List<T> findAll(Class<T> type) {
    List<T> list = genericDAOImpl.findAll(type);
    return list;
}

And, then from database values are getting populated.

Previously i.e. before using MOXy's I used to get following in ApplicationDTO object: 

[ApplicationDTO [applicationId=1, applicationName=name, applicationDescription=desc, owner=5, createTime=2013-05-06 15:29:15.0, environment=[EnvironmentDTO [environmentId=1, environmentName=envname]]], ApplicationDTO [applicationId=2, applicationName=name, applicationDescription=desc, owner=5, createTime=2013-05-28 19:07:10.0, environment=[EnvironmentDTO [environmentId=2, environmentName=envname]]]]

But, now I am getting following in the ApplicationDTO object:

[ApplicationDTO [applicationId=1, applicationName=name, applicationDescription=desc, owner=5, createTime=2013-05-06 15:29:15.0], ApplicationDTO [applicationId=2, applicationName=name, applicationDescription=desc, owner=5, createTime=2013-05-28 19:07:10.0]]

This is the actual flow of my application and object is getting created automatically using JAXB and Jersy libraries. I am not having any other seperate program for marshalling and unmarshalling the object.

Upvotes: 2

Rick Barkhouse
Rick Barkhouse

Reputation: 1206

For some reason, your jaxb.properties file was not picked up -- the "com.sun.xml.bind.v2.runtime" in the error message indicates that Sun JAXB is running, not MOXy.

Make sure that jaxb.properties is on the classpath in the same package as your model classes. If you included jaxb.properties in your source directory, ensure that it was copied to the same directory where your .class files end up. You can read about setting up your jaxb.properties here: http://www.eclipse.org/eclipselink/documentation/2.5/moxy/runtime.htm#sthref8

Hope this helps, Rick

Upvotes: 3

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