I am trying to pass the login details from the login view to the next view.
I found a tutorial and followed it however I am stuck. I am able to store
the login data on the server side but an unable to retrieve it.
The server side code is:
private ViewData viewData = new ViewData();
public ViewData setViewData(String accountId, String accountLevel, StringymId
) {
System.out.println("accountId = " + accountId);
ViewData viewData = new ViewData();
viewData.setaccountId(accountId);
viewData.setaccountLevel(accountLevel);
viewData.setymId(ymId);
System.out.println("setViewData viewData.getaccountId() = " + viewData.
getaccountId());
return null;
}
public ViewData getViewData(String accountId, String accountLevel, StringymId
) {
//viewData = new ViewData(viewData.getaccountId(),
viewData.getaccountLevel(), viewData.getymId());
viewData = new ViewData();
System.out.println("getViewData viewData.getaccountId() = " + viewData.
getaccountId());
System.out.println("getViewData accountId = " + accountId);
return viewData;
}
public ViewData getViewData() {
return viewData;
}
getViewData is called by:
verticalPanel.addAttachHandler(new Handler() {
public void onAttachOrDetach(AttachEvent event) {
//On load of page get the Account Level and ID.
Window.alert("SelectPersonView vertical panel attached.");
AsyncCallback<ViewData> callback = new ViewDataHandler<ViewData
>(SelectPersonView.this);
rpc.getViewData(null, null, null, callback);
When I call setViewData the two System.out.println display 7 and 7 which is
correct.
When I call getViewData the two System.out.println display null and null is
returned to the calling view.
}
});
class ViewDataHandler<T> implements AsyncCallback<ViewData> {
SelectPersonView view;
public ViewDataHandler(SelectPersonView view) {
this.view = view;
}
public void onFailure(Throwable ex) {
Window.alert("RPC call failed.");
}
public void onSuccess(ViewData result) {
//Store the view data
ViewData viewData = result;
accountId = viewData.getaccountId();
accountLevel = viewData.getaccountLevel();
ymId = viewData.getymId();
Window.alert("accountId = " + accountId + " accountLevel = "
+accountLevel
+ " ymId = " + ymId);
}
}
The asynchronous version of the interface is:
//View data
public void setViewData(String accountId, String accountLevel, String ymId,
AsyncCallback<ViewData> callback);
public void getViewData(String accountId, String accountLevel, String ymId,
AsyncCallback<ViewData> callback);
The class that represent the data model is:
package org.AwardTracker.client;
import java.io.Serializable;
public class ViewData implements Serializable {
private static final long serialVersionUID = 1L;
private String accountId;
private String accountLevel;
private String ymId;
//@SuppressWarnings("unused")
public ViewData() {
//just here because GWT wants it.
}
// public ViewData(String accountId, String accountLevel, String ymId) {
// this.accountId = accountId;
// this.accountLevel = accountLevel;
// this.ymId = ymId;
// }
public String getaccountId() {
return accountId;
}
public void setaccountId(String accountId) {
this.accountId = accountId;
}
public String getaccountLevel() {
return accountLevel;
}
public void setaccountLevel(String accountLevel) {
this.accountLevel = accountLevel;
}
public String getymId() {
return ymId;
}
public void setymId(String ymId) {
this.ymId = ymId;
}
}
As stated above, when I call setViewData the two System.out.println display
7 and 7 which is correct. However, is the code correct (i.e., is the data
actually being stored)?
If not then how should I code to store the data from the Login view to be
retrieved by the next view?
If the code is correct and the data is stored then what changes do I need
to make to retrieve the data using getViewData by the calling view.
I am doing this for my Scout Group and have been working on the project for
over 12 months and this is the final hurdle I need to complete the project.
So your help would be greatly appreciated.
Regards,
Glyn
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