Re: [xml-dev] Problem using JAXB (from Sun)

[Mukul Gandhi <mukul_gandhi@yahoo.com>]

Hello,
   Sorry that this is third mail from me on this
subject. Also sorry that my description so far was a
bit vague. I'll try to explain the problem in more
detail below.

I am using Sun's Java Web Services Developer Pack 1.6
(within that JAXB 2.0 Implementation). Everything
seems to be working fine. 

First I used xjc compiler to generate type definitions
from a XML Schema. 

Then I created a Java application to populate a Java
object(which mirros the XML Schema) with some data. 

I am trying to marshal this Java object to a XML file.


But when I run the Java application, I get XML output
as
<?xml version="1.0" encoding="UTF-8"
standalone="yes"?>

(the error is, that there comes no data from the Java
object to this XML)

My XML Schema seems to be all right (I can post it
along with other files, if someone wishes to debug
this application). It should be in fact correct I
feel, because xjc compiler worked fine on the XML
Schema. All the generated type definitions compiled
fine along with my main Java application. 

The mail application is running fine, except it is
generating blank XML..

I'll appreciate any help.. (I have to finish this
application fast).

Regards,
Mukul

--- Mukul Gandhi <mukul_gandhi@yahoo.com> wrote:

> Instead of implementing java.io.Serializable, I had
> to
> implement XMLSerializable by the CatalogueEntry
> class
> (or for any class for that matter).
> 
> Now I am not getting error, but the XML output
> coming
> is blank i.e just this,
> 
> <?xml version="1.0" encoding="UTF-8"
> standalone="yes"?>
> 
> Can someone please tell what could be the problem?
> 
> Regards,
> Mukul
> 
> --- Mukul Gandhi <mukul_gandhi@yahoo.com> wrote:
> 
> > I have got a Java object, which I want to marshal
> to
> > XML file finally.
> > 
> > Below is the JAXB code I have written so far -
> > 
> > import javax.xml.bind.JAXBException;
> > import javax.xml.bind.Marshaller;
> > 
> > public class CatalogueMain {
> >   public static void main(String[] args)
> >   {
> >      CatalogueCategory catalogue_category =
> >                        new CatalogueCategory(
> >                        1,
> >                        "Computer Products",
> >                        "Computer Product
> Category",
> >                        -1
> > 					   );
> > 
> >      CatalogueEntry catalogue_entry =
> >                     new CatalogueEntry(
> >                     1,
> >                     1,
> >                     "Hard Disk",
> >                     "Computer Hard Disk",
> >                     "Technical vetting",
> >                     "Business authorization",
> >                     55,
> >                     "GBP",
> >                     1,
> >                     "dummy_image_url",
> >                     new Date(2005,5,8),
> >                     "procure"
> > 					);
> > 
> >      //create a Marshaller and marshal to standard
> > output
> >      try
> >      {
> >         JAXBContext jc =
> > JAXBContext.newInstance("generated");
> > 
> >         Marshaller m = jc.createMarshaller();
> > 	   
> m.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT,
> > Boolean.TRUE);
> >         m.marshal(catalogue_entry, System.out);
> >      }
> >      catch(Exception ex)
> >      {
> >         ex.printStackTrace();
> >      }
> >   }
> > }
> > 
> > When I run this program, I am getting following
> > exception -
> > 
> > javax.xml.bind.MarshalException: the object
> > parameter
> > to marshal() is not marsha
> > llable
> >         at
> >
>
generated.impl.runtime.MarshallerImpl.marshal(MarshallerImpl.java:88)
> > 
> >         at
> >
>
javax.xml.bind.helpers.AbstractMarshallerImpl.marshal(AbstractMarshal
> > lerImpl.java:66)
> >         at
> CatalogueMain.main(CatalogueMain.java:47)
> > 
> > Can somebody please tell where could be the
> problem?
> > 
> > The CatalogueEntry class definition is -
> > public class CatalogueEntry extends
> EntryAttributes
> > implements java.io.Serializable {
> > 
> > 	/**
> > 	 * Constructor for CatalogueEntry
> > 	 */
> > 	public CatalogueEntry() {
> > 	}
> > 
> > 	/**
> > 	Catalogue builds
> > 	 */
> > 	private ArrayList associatedBuilds = null;
> > 
> > 	/**
> > 	Catalogue products
> > 	 */
> > 	private ArrayList associatedProducts = null;
> > 
> > 	/**
> > 	Catalogue roles
> > 	 */
> > 	private ArrayList associatedRoles = null;
> > 
> > 	/**
> > 	Category id
> > 	 */
> > 	private int catalogueCategoryId = 0;
> > 
> > 	/**
> > 	Category name
> > 	 */
> > 	private String catalogueCategoryName = null;
> > 
> > 	/**
> > 	 * Field partNumber
> > 	 */
> > 	private String partNumber = null;
> > 
> > 	/**
> > 	Type of the catalogue entry.
> > 	1= Generic Catalogue entry
> > 	2= Service
> > 	 */
> > 	private int catalogueEntryType = 0;
> > 
> > 	/**
> > 	Constructor used for creating object to be used
> > while
> > inserting record
> > 
> > 
> > 	 * @param catalogueEntryId int
> > 	 * @param catalogueCategoryId int
> > 	 * @param name String
> > 	 * @param description String
> > 	 * @param techvet String
> > 	 * @param businessAuthorization String
> > 	 * @param price double
> > 	 * @param currency String
> > 	 * @param currencyID int
> > 	 * @param imageURL String
> > 	 * @param lastOrderDate Date
> > 	 * @param performAction String
> > 	 */
> > 	public CatalogueEntry(
> > 		int catalogueEntryId,
> > 		int catalogueCategoryId,
> > 		String name,
> > 		String description,
> > 		String techvet,
> > 		String businessAuthorization,
> > 		double price,
> > 		String currency,
> > 		int currencyID,
> > 		String imageURL,
> > 		Date lastOrderDate,
> > 		String performAction) {
> > 		super(
> > 			catalogueEntryId,
> > 			name,
> > 			description,
> > 			techvet,
> > 			businessAuthorization,
> > 			lastOrderDate,
> > 			imageURL,
> > 			price,
> > 			currency,
> > 			currencyID,
> > 			performAction);
> > 		this.catalogueCategoryId = catalogueCategoryId;
> > 
> > 	}
> > 
> > 
> > 	/**
> > 	 * Constructor for CatalogueEntry
> > 	 * @param catalogueEntryId int
> > 	 * @param catalogueCategoryId int
> > 	 * @param catalogueCategoryName String
> > 	 * @param name String
> > 	 * @param description String
> > 	 * @param techvet String
> > 	 * @param businessAuthorization String
> > 	 * @param price double
> > 	 * @param currency String
> > 	 * @param currencyID int
> > 	 * @param catalogueStatus String
> > 	 * @param imageURL String
> > 	 * @param lastOrderDate Date
> > 	 * @param standardStatus String
> > 	 * @param catalogueStatusId String
> > 	 */
> > 	public CatalogueEntry(
> > 		int catalogueEntryId,
> > 		int catalogueCategoryId,
> > 		String catalogueCategoryName,
> > 		String name,
> > 		String description,
> > 		String techvet,
> > 		String businessAuthorization,
> > 		double price,
> > 		String currency,
> > 		int currencyID,
> > 		String catalogueStatus,
> > 		String imageURL,
> > 		Date lastOrderDate,
> > 		String standardStatus,
> > 		int catalogueStatusId) {
> > 
> > 		super(
> > 			catalogueEntryId,
> > 			name,
> > 			description,
> > 			techvet,
> > 			businessAuthorization,
> > 			catalogueStatus,
> > 			catalogueStatusId,
> > 			lastOrderDate,
> > 			imageURL,
> > 			standardStatus,
> > 			price,
> > 			currency,
> > 			currencyID);
> > 		this.catalogueCategoryId = catalogueCategoryId;
> > 		this.catalogueCategoryName =
> > catalogueCategoryName;
> > 
> > 	}
> > 
> > 	/**
> > 	Access method for the associatedBuilds property.
> > 
> > 	@return   the current value of the
> associatedBuilds
> > property
> > 	 */
> > 	public ArrayList getAssociatedBuilds() {
> > 		return associatedBuilds;
> > 	}
> > 
> > 	/**
> > 	Sets the value of the associatedBuilds property.
> > 
> > 	@param aAssociatedBuilds the new value of the
> > associatedBuilds property
> > 	 */
> > 	public void setAssociatedBuilds(ArrayList
> > aAssociatedBuilds) {
> > 		associatedBuilds = aAssociatedBuilds;
> > 	}
> > 
> > 	/**
> > 	Access method for the associatedProducts
> property.
> > 
> > 	@return   the current value of the
> > associatedProducts
> > property
> > 	 */
> > 	public ArrayList getAssociatedProducts() {
> > 		return associatedProducts;
> > 	}
> > 
> > 	/**
> > 	Sets the value of the associatedProducts
> property.
> > 
> > 	@param aAssociatedProducts the new value of the
> > associatedProducts property
> > 	 */
> > 	public void setAssociatedProducts(ArrayList
> > aAssociatedProducts) {
> > 		associatedProducts = aAssociatedProducts;
> > 	}
> > 
> > 	/**
> > 	Access method for the associatedRoles property.
> > 
> > 	@return   the current value of the
> associatedRoles
> > property
> > 	 */
> > 	public ArrayList getAssociatedRoles() {
> > 		return associatedRoles;
> > 	}
> > 
> > 	/**
> > 	Sets the value of the associatedRoles property.
> > 
> > 	@param aAssociatedRoles the new value of the
> > associatedRoles property
> > 	 */
> > 	public void setAssociatedRoles(ArrayList
> > aAssociatedRoles) {
> > 		associatedRoles = aAssociatedRoles;
> > 	}
> > 
> > 	/**
> > 	Access method for the catalogueEntryType
> property.
> > 
> > 	@return   the current value of the
> > catalogueEntryType
> > property
> > 	 */
> > 	public int getCatalogueEntryType() {
> > 		return catalogueEntryType;
> > 	}
> > 
> > 	/**
> > 	Sets the value of the catalogueEntryType
> property.
> > 
> > 	@param aCatalogueEntryType the new value of the
> > catalogueEntryType property
> > 	 */
> > 	public void setCatalogueEntryType(int
> > aCatalogueEntryType) {
> > 		catalogueEntryType = aCatalogueEntryType;
> > 	}
> > 
> > 	/**
> > 	@return String
> > 	Returns string representation of object
> > 
> > 	 */
> > 	public String toString() {
> > 		return null;
> > 	}
> > 
> > 	/**
> > 	 * Method getCatalogueCategoryId
> > 	 * @return int
> > 	 */
> > 	public int getCatalogueCategoryId() {
> > 		return catalogueCategoryId;
> > 	}
> > 
> > 	/**
> > 	 * Method getCatalogueCategoryName
> > 	 * @return String
> > 	 */
> > 	public String getCatalogueCategoryName() {
> > 		return catalogueCategoryName;
> > 	}
> > 
> > 	/**
> > 	 * Method setCatalogueCategoryId
> > 	 * @param i int
> > 	 */
> > 	public void setCatalogueCategoryId(int i) {
> > 		catalogueCategoryId = i;
> > 	}
> > 
> > 	/**
> > 	 * Method setCatalogueCategoryName
> > 	 * @param string String
> > 	 */
> > 	public void setCatalogueCategoryName(String
> string)
> > {
> > 		catalogueCategoryName = string;
> > 	}
> > 
> > 	/**
> > 	 * Method getPartNumber
> > 	 * @return String
> > 	 */
> > 	public String getPartNumber() {
> > 		return partNumber;
> > 	}
> > 
> > 	/**
> > 	 * Method setPartNumber
> > 	 * @param string String
> > 	 */
> > 	public void setPartNumber(String string) {
> > 		partNumber = string;
> > 	}
> > 
> > }
> > 
> > I'll be grateful for any help.
> > 
> > Regards,
> > Mukul
> > 
> > 
> > 
> > 
> > 		
> >
> ____________________________________________________
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> >  
> > 
> >
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> 
> 
> 		
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