Example usage for com.google.gwt.view.client AsyncDataProvider AsyncDataProvider

Introduction

In this page you can find the example usage for com.google.gwt.view.client AsyncDataProvider AsyncDataProvider.

Prototype

protected AsyncDataProvider(ProvidesKey<T> keyProvider) 

Source Link

Document

Constructs an AsyncDataProvider with the given key provider.

Usage

From source file:com.google.gwt.sample.expenses.client.MobileExpenseList.java

License:Apache License

public MobileExpenseList(final Listener listener, final ExpensesRequestFactory requestFactory) {
    this.listener = listener;
    this.requestFactory = requestFactory;
    expenseDataProvider = new AsyncDataProvider<ExpenseProxy>(new EntityProxyKeyProvider<ExpenseProxy>()) {
        @Override/*from  w w  w.j a v a 2s.c  o m*/
        protected void onRangeChanged(HasData<ExpenseProxy> view) {
            requestExpenses();
        }
    };

    expenseList = new CellList<ExpenseProxy>(new ExpenseCell());
    expenseList.setKeyboardSelectionPolicy(KeyboardSelectionPolicy.DISABLED);

    expenseSelection = new NoSelectionModel<ExpenseProxy>();
    expenseList.setSelectionModel(expenseSelection);
    expenseSelection.addSelectionChangeHandler(new SelectionChangeEvent.Handler() {
        public void onSelectionChange(SelectionChangeEvent event) {
            listener.onExpenseSelected(expenseSelection.getLastSelectedObject());
        }
    });

    expenseDataProvider.addDataDisplay(expenseList);
    initWidget(expenseList);
}

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From source file:com.google.gwt.sample.expenses.client.MobileReportList.java

License:Apache License

public MobileReportList(final Listener listener, final ExpensesRequestFactory requestFactory,
        EmployeeProxy employee) {/*from  w ww .  j a  va 2  s  . c  o m*/
    this.listener = listener;
    this.requestFactory = requestFactory;
    this.employee = employee;

    EntityProxyKeyProvider<ReportProxy> keyProvider = new EntityProxyKeyProvider<ReportProxy>();

    reportDataProvider = new AsyncDataProvider<ReportProxy>(keyProvider) {
        @Override
        protected void onRangeChanged(HasData<ReportProxy> view) {
            requestReports();
        }
    };

    reportList = new CellList<ReportProxy>(new AbstractCell<ReportProxy>() {
        @Override
        public void render(Context context, ReportProxy value, SafeHtmlBuilder sb) {
            sb.appendHtmlConstant("<div class='item'>");
            sb.appendEscaped(value.getPurpose());
            sb.appendHtmlConstant("</div>");
        }
    });
    reportList.setKeyboardSelectionPolicy(KeyboardSelectionPolicy.DISABLED);

    reportSelection = new NoSelectionModel<ReportProxy>(keyProvider);
    reportSelection.addSelectionChangeHandler(new SelectionChangeEvent.Handler() {
        public void onSelectionChange(SelectionChangeEvent event) {
            listener.onReportSelected(reportSelection.getLastSelectedObject());
        }
    });

    reportList.setSelectionModel(reportSelection);
    reportDataProvider.addDataDisplay(reportList);

    initWidget(reportList);
    onRefresh(false);
}

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