DFF Issue on OAF page.

I am using DFF on OAF page and able to pupulate default default values in DFF through processRequest() in OAF
When i try to change the Default values after DFF is rendered and click some button on Page, all entered values is getting replaced with old values (default values)
Please suggest

oadescriptiveflexbean.processFlex(oapagecontext);
Enumeration x= null;
x= oadescriptiveflexbean.getChildNames();
while(x.hasMoreElements())
String aParamName = (String)x.nextElement();
OAWebBean dffbeans=(OAWebBean)oadescriptiveflexbean.findChildRecursive(aParamName);
if(dffbeans != null)
if (aParamName.equals("HzAddressStyleFlex1") && oapagecontext.getParameter("lAddress1")!=null)
OAMessageTextInputBean Address1=(OAMessageTextInputBean)oadescriptiveflexbean.findChildRecursive(aParamName);
Address1.setText(oapagecontext.getParameter("Address1").toString());
if (aParamName.equals("HzAddressStyleFlex2") && oapagecontext.getParameter("Address2")!=null)
OAMessageTextInputBean Address2=(OAMessageTextInputBean)oadescriptiveflexbean.findChildRecursive(aParamName);
Address2.setText(oapagecontext.getParameter("Address2").toString());
if (aParamName.equals("HzAddressStyleFlex5") && oapagecontext.getParameter("City")!=null)
OAMessageTextInputBean City=(OAMessageTextInputBean)oadescriptiveflexbean.findChildRecursive(aParamName);
City.setText(oapagecontext.getParameter("City").toString());
if (aParamName.equals("HzAddressStyleFlex6") && oapagecontext.getParameter("County")!=null)
OAMessageTextInputBean County=(OAMessageTextInputBean)oadescriptiveflexbean.findChildRecursive(aParamName);
County.setText(oapagecontext.getParameter("County").toString());
if (aParamName.equals("HzAddressStyleFlex7") && oapagecontext.getParameter("State")!=null)
OAMessageLovInputBean State=(OAMessageLovInputBean)oadescriptiveflexbean.findChildRecursive(aParamName);
State.setText(oapagecontext.getParameter("State").toString());
if (aParamName.equals("HzAddressStyleFlex8") && oapagecontext.getParameter("postaCode")!=null)
OAMessageTextInputBean ZipCode=(OAMessageTextInputBean)oadescriptiveflexbean.findChildRecursive(aParamName);
ZipCode.setText(oapagecontext.getParameter("postaCode").toString());
}

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304
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