java - Jaxb XML Attribute -

i doing marshalling of java object xml using jaxb . had requirement create thing

<link rel="self" href="test" />

how can done? annotations should use.

any appriciated

java class

public class item {      private string title;     private int price;      private string productlink;     private string rel;      public string gettitle() {     return title;     }      public void settitle(string title) {     this.title = title;     }      public int getprice() {     return price;     }      public void setprice(int price) {     this.price = price;     }      @xmlpath("link/@href")     public string getproductlink() {     return productlink;     }      public void setproductlink(string productlink) {     this.productlink = productlink;     } 

you can create link class annotated @xmlrootelement properties (rel , href) annotated @xmlattribute.

the following tutorial acquainted jaxb (jsr-222):

• http://wiki.eclipse.org/eclipselink/examples/moxy/gettingstarted

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option #1 - using eclipselink jaxb (moxy) jaxb provider

using @xmlpath extension in eclipselink jaxb (moxy) following:

@xmlpath("link[@rel='self']/@href") public string getproductlink() {     return productlink; } 

for more information

• http://blog.bdoughan.com/2011/03/map-to-element-based-on-attribute-value.html

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option #2 - using jaxb provider

you use xmladapter

@xmlelement(name="link") @xmljavatypeadapter(linkadapter.class) public string getproductlink() {     return productlink; } 

linkadapter

import javax.xml.bind.annotation.*; import javax.xml.bind.annotation.adapters.xmladapter;  public class linkadapter extends xmladapter<linkadapter.link, string>{      public static class link {          @xmlattribute         public string rel = "self";          @xmlattribute         public string href;     }      @override     public string unmarshal(link v) throws exception {         return v.href;     }      @override     public link marshal(string v) throws exception {         link link = new link();         link.href = v;         return link;     }  }