Two Component Click differentaite

Hi All,
I have a login form. It has a commandButton to submit the userId and password to loginbacking object.
It also has a commandLink called "ChangePassword" that also submit to the loginbacking object. Objects are as follows.
private CoreCommandButton commandButton;
private CoreCommandLink forgotpassword;
Now, problem is :----------
In the loginbacking object, I really want to differentiate between "Whether the user clicked the commandButton OR commandLink. In my case, user clicks any of these two and I think both the components are sending values to loginbacking object (Meaning you click either of them and I guess both are getting submitted at a time). This is not good bcaz in that case, there is no way I could know in the loginbacking object "Which component really got clicked by the user "
any idea ? how to differentiate OR better how to prevent both components submitting at a time ???????? is this bug ??
I tried using forgotpassword.getId() avlue in loginbacking object in order to differentiate between two component clicks. But in vain.
Even if user clicks commandButton (and not the commandLink), I still keep getting the ID value of commandLink in backing object. So unable to differentiate.
Any full proof way ??/
thanks,
pp

I used the way you specified in both of the commandButtons in my Jsf page and then in the backing object generated two methods to the get the value of "which button got clicked as follows"
    public void setResponse(String response) {
        this.Response = response;
    public String getResponse() {
        return Response;
    }and then determine which button got clicked in backing actionMethod as follows:----
if (getResponse().equalsIgnoreCase("ChangePassword") ){
/// some logic here
and run the page. but it gives me following error : Any Idea ????
500 Internal Server Error
javax.faces.el.PropertyNotFoundException: Error setting property 'inputValue' in bean of type null     at com.sun.faces.el.PropertyResolverImpl.setValue(PropertyResolverImpl.java:153)     at oracle.adfinternal.view.faces.model.FacesPropertyResolver.setValue(FacesPropertyResolver.java:155)     at com.sun.faces.el.impl.ArraySuffix.setValue(ArraySuffix.java:192)     at com.sun.faces.el.impl.ComplexValue.setValue(ComplexValue.java:171)     at com.sun.faces.el.ValueBindingImpl.setValue(ValueBindingImpl.java:234)     at oracle.adfinternal.view.faces.taglib.listener.SetActionListener.processAction(SetActionListener.java:50)     at javax.faces.event.ActionEvent.processListener(ActionEvent.java:57)     at oracle.adf.view.faces.component.UIXComponentBase.broadcast(UIXComponentBase.java:548)     at oracle.adf.view.faces.component.UIXCommand.broadcast(UIXCommand.java:200)     at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:267)     at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:381)     at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:75)     at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:200)     at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:90)     at javax.faces.webapp.FacesServlet.service(FacesServlet.java:197)     at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:65)     at oracle.adfinternal.view.faces.webapp.AdfFacesFilterImpl._invokeDoFilter(AdfFacesFilterImpl.java:367)     at oracle.adfinternal.view.faces.webapp.AdfFacesFilterImpl._doFilterImpl(AdfFacesFilterImpl.java:336)     at oracle.adfinternal.view.faces.webapp.AdfFacesFilterImpl.doFilter(AdfFacesFilterImpl.java:196)     at oracle.adf.view.faces.webapp.AdfFacesFilter.doFilter(AdfFacesFilter.java:87)     at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:16)     at oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:332)     at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:659)     at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:330)     at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:830)     at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.AJPRequestHandler.run(AJPRequestHandler.java:224)     at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.AJPRequestHandler.run(AJPRequestHandler.java:133)     at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:192)     at java.lang.Thread.run(Thread.java:534)

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Two Component Click differentaite

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