Lov list from Web Service in ADF pages

Hi We have successfully created web service data control and bind them to the field to get the LOV list.
Now the requirement is that
when the user goes to the next screen we dont want to retive the date again from DB, But i want the same LOV list which i received first time.
In short we want the same LOV list until the process end which has n number of screens. we don't want the fresh list every time the screen comes up.

Hi,
in this case you don't use the WebService Data Control but a WebService proxy client and then a wrapper in front of it. This way the wrapper POJO can cache the data for as long as you need it. The wrapper POJO is then exposed as a JavaBean data control (building the select list is thenthe same as with the WS DC). The wrapper POJO exposes a method that returns a collection (List) of values. On each query for the LOV the wrapper pojo checks if it already contains data - and if so - returns existing data. The wrapper POJO can expose a method or flag for you to indicate that it should re-fetch data from a web service
Frank

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    =======================================================
    package presencedemo;
    import java.net.URI;
    import java.rmi.RemoteException;
    import java.util.Calendar;
    import org.csapi.schema.parlayx.common.v2_0.PolicyException;
    import org.csapi.schema.parlayx.common.v2_0.ServiceException;
    import org.csapi.schema.parlayx.common.v2_0.SimpleReference;
    import org.csapi.schema.parlayx.presence.v2_0.ActivityValue;
    import org.csapi.schema.parlayx.presence.v2_0.AttributeTypeAndValue;
    import org.csapi.schema.parlayx.presence.v2_0.CommunicationMeans;
    import org.csapi.schema.parlayx.presence.v2_0.CommunicationMeansType;
    import org.csapi.schema.parlayx.presence.v2_0.CommunicationValue;
    import org.csapi.schema.parlayx.presence.v2_0.OtherValue;
    import org.csapi.schema.parlayx.presence.v2_0.PlaceValue;
    import org.csapi.schema.parlayx.presence.v2_0.PresenceAttribute;
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    import org.csapi.schema.parlayx.presence.v2_0.PresencePermission;
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    private String PresenceServer;
    private String PresenceUsername;
    private String PresencePassword;
    private String PresenceRealm;
    private String PresencePort;
    URI BuddyList[];
    PresenceAttributeType[] pat1;
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    public PresenceDemoClient(String server, String username, String password,
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    PresenceUsername = username;
    PresencePassword = password;
    PresenceRealm = realm;
    PresencePort = port;
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    AttributeTypeAndValue typeValue = new AttributeTypeAndValue();
    typeValue.setActivity(activity);
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    mean.setContact(new URI("sip:" + PresenceUsername + "@" +
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    mean.setType(CommunicationMeansType.Chat);
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    typeValue.setCommunication(commValue);
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    typeValue.setOther(other);
    typeValue.setPrivacy(PrivacyValue.PrivacyNone);
    typeValue.setPlace(PlaceValue.PlaceNone);
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    PresenceRealm);
    } catch (Exception e) {
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    public void subscribePresence() {
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    PresenceAttributeType[] pat = new PresenceAttributeType[] { pa };
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    pat1 = new PresenceAttributeType[] { pa1 };
    } catch (Exception e) {
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