Prevent binding of JAXB elements when object is created -

i have class follows:

    @xmlrootelement(name="user")     @xmlaccessortype(xmlaccesstype.none)     public class user {      private int id;     private string name;      public user() { }      @xmlattribute     public int getid() {       return id;     }      public void setid() {       this.id = id;     }      @xmlelement     public string getname() {       return first + " " + last;     }      public void setname(string name) {       this.name = name;     }      // other class code      } 

i using class jax-rs service. when client wishes create new user, xml representation of following format must sent.

<user>   <name>john doe</name> </user> 

on receiving such snippet, service creates new user correctly. however, if client includes id attribute user (e.g. <user id="100">...</user>) id value of attribute assigned the user.

as can imagine, wish use id field primary key of user class , not wish user able specify it. however, when return representation of user instance (also in xml), wish able specify id attribute.

how achieve this?

there few ways done:

option #1

you null id field out when create operation done.

@post @consumes(mediatype.application_xml) public void create(user user) {     user.setid(0);     entitymanager.persist(customer); } 

option #2

alternatively have second user class without id field, use parameter of create operation:

@post @consumes(mediatype.application_xml) public void create(userwithoutid userwithoutid) {     user user = new user();     // copy userwithoutid user     entitymanager.persist(customer); } 

option #3

if using property access, option provide getter id property. jaxb include in on write (marshal), not on read (unmarshal).