java - How to set validation context with annotations -

imagine i've action myaction, field user getters , setters.

then have 2 exposed public methods want use visitor validation object user 2 different contexts, user validated in 2 different ways, depending on method has been called.

i want annotations only, no validation.xml.

see example

public class myaction extends actionsupport {     private user user;     public user getuser() {         return this.user;     }     public void setuser(user user) {         this.user=user;     }      public string execute() {         //some code here ...         return success;     }      @validations(         visitorfields = {@visitorfieldvalidator(context="mycontext1", fieldname="user", key="error.message", message="a default error message", shortcircuit=true)}          )     public string save() {         //some code here ...         return success;     }      @validations(         visitorfields = {@visitorfieldvalidator(context="mycontext2", fieldname="user", key="error.message", message="a default error message", shortcircuit=true)}          )     public string update() {         //some code here ...         return success;     }      //... } 

now i'd specify context (mycontext1 , mycontext2) annotations inside user object, validators fire when save() method called on myaction while others fire when update() called.

i imagine this:

public class user implements serializable {     private integer id;     private string name;      @requiredfieldvalidator(context="mycontext2", message = "you must enter value data.")     public void setid(integer id) {         this.id=id;     }      @requiredfieldvalidator(context="mycontext1", message = "you must enter value data.")     public void setname(string name) {         this.name = name;     }      //some code... getters, etc... } 

i'd that, example, during creation operation (method save()) name required while during update operation (method update() ) id required. unfortunately seems me requiredfieldvalidator, other validator annotation in struts2, not support "context" field.

i know can use user-mycontext1-validation.xml, , user-mycontext2-validation.xml file (i've not tried think i've understood can done) i'd use annotations only.

do know how can annotations?