How can we create a session variable in OAF

Hi All,
i have a Master and detail page.
In Master Page I am searching based on Deptno.
suppose i enter Deptno 10, i got the 10 th deptno infomation and i click on the Detail Button i went to the detail page and is showed the Details of Deptno.
in detail page i have a Cancel Button to come back to the Master page.Here i need to show the previous data only(Deptno 10) .
for this i gave
Retain AM True.But it was display deptno 10 and 20 also.can you please any one can can help me on this.
if(pageContext.getParameter("Back")!=null)
System.out.println("I am In Cancel ");
pageContext.forwardImmediately("OA.jsp?page=/xxcurnx/oracle/apps/ont/custdtls/webui/XxcustdrilldwnPG",
null,
OAWebBeanConstants.KEEP_MENU_CONTEXT,
null,
null,
true, // release AM
OAWebBeanConstants.ADD_BREAD_CRUMB_NO
The above method not woked properly.
could you please anybody can help on this issue.
Thanks,
Mallik.

HI Pratap,
This is My search Page(Master Page) Controller Code:
public class XxcustdrldwnCO extends OAControllerImpl
public static final String RCS_ID="$Header$";
public static final boolean RCS_ID_RECORDED =
VersionInfo.recordClassVersion(RCS_ID, "%packagename%");
* Layout and page setup logic for a region.
* @param pageContext the current OA page context
* @param webBean the web bean corresponding to the region
public void processRequest(OAPageContext pageContext, OAWebBean webBean) //Process Request Method
super.processRequest(pageContext, webBean);
* Procedure to handle form submissions for form elements in
* a region.
* @param pageContext the current OA page context
* @param webBean the web bean corresponding to the region
public void processFormRequest(OAPageContext pageContext, OAWebBean webBean)
super.processFormRequest(pageContext, webBean);
XxcustdtlsmainAMImpl am=(XxcustdtlsmainAMImpl)pageContext.getApplicationModule(webBean);
if(pageContext.getParameter("Search")!=null)
if(pageContext.getParameter("CustID")!=null && !pageContext.getParameter("CustID").equals(""))
String vCustID = pageContext.getParameter("CustID");
am.srchCustidtlsfordrilldwn(vCustID);
if("update".equals(pageContext.getParameter(EVENT_PARAM)))
pageContext.setForwardURL("OA.jsp?page=/xxcurnx/oracle/apps/ont/custdtls/webui/XxcusttrxnPG",
null,
OAWebBeanConstants.KEEP_MENU_CONTEXT,
null,
null,
false,
OAWebBeanConstants.ADD_BREAD_CRUMB_NO,
OAWebBeanConstants.IGNORE_MESSAGES);
if("updateIndividual".equals(pageContext.getParameter(EVENT_PARAM)))
pageContext.setForwardURL("OA.jsp?page=/xxcurnx/oracle/apps/ont/custdtls/webui/XxcustlinetrnxPG",
null,
OAWebBeanConstants.KEEP_MENU_CONTEXT,
null,
null,
false,
OAWebBeanConstants.ADD_BREAD_CRUMB_NO,
OAWebBeanConstants.IGNORE_MESSAGES);
if(pageContext.getParameter("Cancel")!=null)
pageContext.getApplicationModule(webBean).invokeMethod("rollBack");
pageContext.forwardImmediately("OA.jsp?page=/xxcurnx/oracle/apps/ont/custdtls/webui/XxcustdrilldwnPG",
null,
OAWebBeanConstants.KEEP_MENU_CONTEXT,
null,
null,
false, // release AM
OAWebBeanConstants.ADD_BREAD_CRUMB_NO);
Thnaks,
Mallik

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           SmsFacilityVw.FACILITY,
           SmsFacilityVw.PAR_ID_FAC,
           SmsFacilityVw.NPO_REGISTRATION_NO,
           SmsFacilityVw.ADDRESS,
           SmsFacilityVw.TELNR_WORK,
           SmsFacilityVw.ADDRESSLINE,
           SmsFacilityVw.Town,
           SmsFacilityVw.Suburb,
           SmsFacilityVw.PostalCode,
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           SmsFacilityVw.SERVICE_DELIVERY_AREA,
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    FROM SMS_FACILITY_VW SmsFacilityVw]]></SQLQuery>
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        Name="ParIdOrg"
        IsUpdateable="false"
        IsPersistent="false"
        PrecisionRule="true"
        Precision="38"
        Scale="0"
        Type="java.math.BigInteger"
        ColumnType="NUMBER"
        AliasName="PAR_ID_ORG"
        Expression="PAR_ID_ORG"
        SQLType="NUMERIC"/>
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        IsUpdateable="false"
        IsPersistent="false"
        PrecisionRule="true"
        Precision="100"
        Type="java.lang.String"
        ColumnType="VARCHAR2"
        AliasName="ORGANISATION"
        Expression="ORGANISATION"
        SQLType="VARCHAR">
        <DesignTime>
          <Attr Name="_DisplaySize" Value="100"/>
        </DesignTime>
      </ViewAttribute>
      <ViewAttribute
        Name="OrgKey"
        IsUpdateable="false"
        IsPersistent="false"
        PrecisionRule="true"
        Precision="10"
        Type="java.lang.String"
        ColumnType="VARCHAR2"
        AliasName="ORG_KEY"
        Expression="ORG_KEY"
        SQLType="VARCHAR">
        <DesignTime>
          <Attr Name="_DisplaySize" Value="10"/>
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      </ViewAttribute>
      <ViewAttribute
        Name="CCode"
        IsUpdateable="false"
        IsPersistent="false"
        PrecisionRule="true"
        Precision="30"
        Type="java.lang.String"
        ColumnType="VARCHAR2"
        AliasName="C_CODE"
        Expression="C_CODE"
        SQLType="VARCHAR">
        <DesignTime>
          <Attr Name="_DisplaySize" Value="30"/>
        </DesignTime>
      </ViewAttribute>
      <ViewAttribute
        Name="Facility"
        IsUpdateable="false"
        IsPersistent="false"
        PrecisionRule="true"
        Precision="100"
        Type="java.lang.String"
        ColumnType="VARCHAR2"
        AliasName="FACILITY"
        Expression="FACILITY"
        SQLType="VARCHAR">
        <DesignTime>
          <Attr Name="_DisplaySize" Value="100"/>
        </DesignTime>
      </ViewAttribute>
      <ViewAttribute
        Name="ParIdFac"
        IsUpdateable="false"
        IsPersistent="false"
        PrecisionRule="true"
        Precision="38"
        Scale="0"
        Type="java.math.BigInteger"
        ColumnType="NUMBER"
        AliasName="PAR_ID_FAC"
        Expression="PAR_ID_FAC"
        SQLType="NUMERIC"/>
      <ViewAttribute
        Name="NpoRegistrationNo"
        IsUpdateable="false"
        IsPersistent="false"
        PrecisionRule="true"
        Precision="30"
        Type="java.lang.String"
        ColumnType="VARCHAR2"
        AliasName="NPO_REGISTRATION_NO"
        Expression="NPO_REGISTRATION_NO"
        SQLType="VARCHAR">
        <DesignTime>
          <Attr Name="_DisplaySize" Value="30"/>
        </DesignTime>
      </ViewAttribute>
      <ViewAttribute
        Name="Address"
        IsUpdateable="false"
        IsPersistent="false"
        PrecisionRule="true"
        Precision="227"
        Type="java.lang.String"
        ColumnType="VARCHAR2"
        AliasName="ADDRESS"
        Expression="ADDRESS"
        SQLType="VARCHAR">
        <DesignTime>
          <Attr Name="_DisplaySize" Value="227"/>
        </DesignTime>
      </ViewAttribute>
      <ViewAttribute
        Name="TelnrWork"
        IsUpdateable="false"
        IsPersistent="false"
        PrecisionRule="true"
        Precision="150"
        Type="java.lang.String"
        ColumnType="VARCHAR2"
        AliasName="TELNR_WORK"
        Expression="TELNR_WORK"
        SQLType="VARCHAR">
        <DesignTime>
          <Attr Name="_DisplaySize" Value="150"/>
        </DesignTime>
      </ViewAttribute>
      <ViewAttribute
        Name="Addressline"
        IsPersistent="false"
        PrecisionRule="true"
        Precision="120"
        Type="java.lang.String"
        ColumnType="VARCHAR2"
        AliasName="ADDRESSLINE"
        Expression="ADDRESSLINE"
        SQLType="VARCHAR"
        IsUpdateable="false">
        <DesignTime>
          <Attr Name="_DisplaySize" Value="120"/>
        </DesignTime>
      </ViewAttribute>
      <ViewAttribute
        Name="Town"
        IsPersistent="false"
        PrecisionRule="true"
        Precision="60"
        Type="java.lang.String"
        ColumnType="VARCHAR2"
        AliasName="TOWN"
        Expression="TOWN"
        SQLType="VARCHAR"
        IsUpdateable="false">
        <DesignTime>
          <Attr Name="_DisplaySize" Value="60"/>
        </DesignTime>
      </ViewAttribute>
      <ViewAttribute
        Name="Suburb"
        IsPersistent="false"
        PrecisionRule="true"
        Precision="60"
        Type="java.lang.String"
        ColumnType="VARCHAR2"
        AliasName="SUBURB"
        Expression="SUBURB"
        SQLType="VARCHAR"
        IsUpdateable="false">
        <DesignTime>
          <Attr Name="_DisplaySize" Value="60"/>
        </DesignTime>
      </ViewAttribute>
      <ViewAttribute
        Name="Postalcode"
        IsPersistent="false"
        PrecisionRule="true"
        Precision="4"
        Type="java.lang.String"
        ColumnType="VARCHAR2"
        AliasName="POSTALCODE"
        Expression="POSTALCODE"
        SQLType="VARCHAR"
        IsUpdateable="false">
        <DesignTime>
          <Attr Name="_DisplaySize" Value="4"/>
        </DesignTime>
      </ViewAttribute>
      <ViewAttribute
        Name="DsdRegion"
        IsUpdateable="false"
        IsPersistent="false"
        PrecisionRule="true"
        Precision="40"
        Type="java.lang.String"
        ColumnType="VARCHAR2"
        AliasName="DSD_REGION"
        Expression="DSD_REGION"
        SQLType="VARCHAR">
        <DesignTime>
          <Attr Name="_DisplaySize" Value="40"/>
        </DesignTime>
      </ViewAttribute>
      <ViewAttribute
        Name="ServiceDeliveryArea"
        IsUpdateable="false"
        IsPersistent="false"
        PrecisionRule="true"
        Precision="50"
        Type="java.lang.String"
        ColumnType="VARCHAR2"
        AliasName="SERVICE_DELIVERY_AREA"
        Expression="SERVICE_DELIVERY_AREA"
        SQLType="VARCHAR">
        <DesignTime>
          <Attr Name="_DisplaySize" Value="50"/>
        </DesignTime>
      </ViewAttribute>
      <ViewAttribute
        Name="Faxnr"
        IsUpdateable="false"
        IsPersistent="false"
        PrecisionRule="true"
        Precision="50"
        Type="java.lang.String"
        ColumnType="VARCHAR2"
        AliasName="FAXNR"
        Expression="FAXNR"
        SQLType="VARCHAR">
        <DesignTime>
          <Attr Name="_DisplaySize" Value="50"/>
        </DesignTime>
      </ViewAttribute>
      <ViewAttribute
        Name="Email"
        IsUpdateable="false"
        IsPersistent="false"
        PrecisionRule="true"
        Precision="80"
        Type="java.lang.String"
        ColumnType="VARCHAR2"
        AliasName="EMAIL"
        Expression="EMAIL"
        SQLType="VARCHAR">
        <DesignTime>
          <Attr Name="_DisplaySize" Value="80"/>
        </DesignTime>
      </ViewAttribute>
      <ViewAttribute
        Name="ParTypeDef"
        IsUpdateable="false"
        IsPersistent="false"
        PrecisionRule="true"
        Precision="12"
        Type="java.lang.String"
        ColumnType="VARCHAR2"
        AliasName="PAR_TYPE_DEF"
        Expression="PAR_TYPE_DEF"
        SQLType="VARCHAR">
        <DesignTime>
          <Attr Name="_DisplaySize" Value="12"/>
        </DesignTime>
      </ViewAttribute>
      <ViewLinkAccessor
        Name="AGR"
        ViewLink="sms1405.par_facfkViewLink"
        Type="oracle.jbo.RowIterator"
        IsUpdateable="false"/>
      <ViewLinkAccessor
        Name="SmsParAddrVwView"
        ViewLink="sms1405.parLink"
        Type="oracle.jbo.RowIterator"
        IsUpdateable="false"/>
      <ViewLinkAccessor
        Name="DOC"
        ViewLink="sms1405.FAC_DOC"
        Type="oracle.jbo.RowIterator"
        IsUpdateable="false"/>
    </ViewObject>Edited by: ADF007 on 2012/08/23 6:10 PM

    i try this
    public class SMS_AGREEMENTSImpl extends EntityImpl {
    RowSet newContractNoBeforePost = null;
        public static int NUMBER = Types.NUMERIC;
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