CommandButton action executing while Page Refresh

Hi,
I am developing an Application in ADF. I have a method in Backing Bean. I am associating this method to action Property of CommandButton in jspx Page.
<af:commandButton text="Submit"
action="#{backing_blockingRowWhileLoading.doNotExecuteOnPageRefresh}"
binding="#{backing_blockingRowWhileLoading.commandButton1}"
id="commandButton1"/>
This is the code in the backing bean
public String doNotExecuteOnPageRefresh()
System.out.println("postback loop");
return null;
When i am clicking the command Button the method is being executed and statement is being printed on the console. This is fine.
The problem is when i am pressing F5 or refreshing the browser the method is being executed once again.
Can i write the method in backing bean in such a way that it is executed only when th button is clicked. It shouldn't not be executed when page is refreshed using F5 or Refresh button of the browser.
I have tried with the below statement. It also failed.
if (!AdfFacesContext.getCurrentInstance().isPostback()){}
Can anyone please help me in solving this issue. This is very urgent for me. Thanks in advance.
Thank You,
Ravi kumar.

Hi Sireesha,
Thanks for helping me in solving the problem.
I have placed the below code in faces-config.xml and it solved the issue.
<navigation-rule>
<from-view-id>/blockingPageExecutionDuringPageRefresh.jspx</from-view-id>
<navigation-case>
<from-outcome>success</from-outcome>
<to-view-id>/blockingPageExecutionDuringPageRefresh.jspx</to-view-id>
<redirect/>
</navigation-case>
</navigation-rule>
Thank You,
Ravi kumar.

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Thanks and regards,
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CommandButton action executing while Page Refresh

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