Examples of com.vaadin.server.SystemError

com.vaadin.server.SystemError
SystemError is an error message for a problem caused by error in system, not the user application code. The system error can contain technical information such as stack trace and exception. SystemError does not support HTML in error messages or stack traces. If HTML messages are required, use {@link UserError} or a custom implementation of{@link ErrorMessage}. @author Vaadin Ltd. @since 3.0

                "Required=true, custom error message, null selection not allowed");
        s.setRequired(true);
        s.setNullSelectionAllowed(false);
        s.setPropertyDataSource(new MethodProperty<String>(new TestPojo(), "id"));
        s.setValue(null);
        s.setComponentError(new SystemError("Test error message"));
        listOfAllFields.add(s);


        for (Iterator<Select> i = listOfAllFields.iterator(); i.hasNext();) {
            s = i.next();
            main.addComponent(s);

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        VerticalLayout errorLayout = new VerticalLayout();
        errorLayout.setMargin(true);
        final Panel errorPanel = new Panel("Demo application error",
                errorLayout);
        errorPanel.setStyleName("strong");
        errorPanel.setComponentError(new SystemError(
                "Cannot provide sample directory"));
        errorLayout.addComponent(new Label(errorMessage, ContentMode.HTML));
        // Remove all components from applications main window
        uI.removeAllComponents();
        // Add error panel

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    private Form getFormPanelExample() {
        Form f = new Form();
        f.setCaption("Test form");
        CheckBox fb2 = new CheckBox("Test button", true);
        fb2.setComponentError(new SystemError("Test error"));
        f.addField("fb2", fb2);
        TextField ft1 = new TextField("With caption");
        ft1.setComponentError(new SystemError("Error"));
        f.addField("ft1", ft1);
        TextField ft2 = new TextField();
        ft2.setComponentError(new SystemError("Error"));
        ft2.setValue("Without caption");
        f.addField("ft2", ft2);
        TextField ft3 = new TextField("With caption and required");
        ft3.setComponentError(new SystemError("Error"));
        ft3.setRequired(true);
        f.addField("ft3", ft3);
        return f;
    }

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        return f;
    }


    private void addFields(ComponentContainer lo) {
        Button button = new Button("Test button");
        button.setComponentError(new SystemError("Test error"));
        lo.addComponent(button);


        CheckBox b2 = new CheckBox("Test button");
        b2.setComponentError(new SystemError("Test error"));
        lo.addComponent(b2);


        TextField t1 = new TextField("With caption");
        t1.setComponentError(new SystemError("Error"));
        lo.addComponent(t1);


        TextField t2 = new TextField("With caption and required");
        t2.setComponentError(new SystemError("Error"));
        t2.setRequired(true);
        lo.addComponent(t2);


        TextField t3 = new TextField();
        t3.setValue("Without caption");
        t3.setComponentError(new SystemError("Error"));
        lo.addComponent(t3);


        lo.addComponent(new TextField("Textfield with no error in it"));


        TextField tt1 = new TextField("100% wide Textfield with no error in it");
        tt1.setWidth("100%");
        lo.addComponent(tt1);


        TextField tt2 = new TextField();
        tt2.setWidth("100%");
        tt2.setValue("100% wide Textfield with no error in it and no caption");
        lo.addComponent(tt2);


        TextField t4 = new TextField();
        t4.setValue("Without caption, With required");
        t4.setComponentError(new SystemError("Error"));
        t4.setRequired(true);
        lo.addComponent(t4);


        TextField t5 = new TextField();
        t5.setValue("Without caption,  WIDE");
        t5.setComponentError(new SystemError("Error"));
        t5.setWidth("100%");
        lo.addComponent(t5);


        TextField t6 = new TextField();
        t6.setValue("Without caption, With required, WIDE");
        t6.setComponentError(new SystemError("Error"));
        t6.setRequired(true);
        t6.setWidth("100%");
        lo.addComponent(t6);


        TextField t7 = new TextField();
        t7.setValue("With icon and required and icon");
        t7.setComponentError(new SystemError("Error"));
        t7.setRequired(true);
        t7.setIcon(new ThemeResource("../runo/icons/16/ok.png"));
        lo.addComponent(t7);


        DateField d1 = new DateField(
                "Datefield with caption and icon, next one without caption");
        d1.setComponentError(new SystemError("Error"));
        d1.setRequired(true);
        d1.setIcon(new ThemeResource("../runo/icons/16/ok.png"));
        lo.addComponent(d1);


        DateField d2 = new DateField();
        d2.setComponentError(new SystemError("Error"));
        d2.setRequired(true);
        lo.addComponent(d2);
    }

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        LegacyWindow main = new LegacyWindow("#1663");
        setMainWindow(main);


        TextField tf = new TextField("First name");
        tf.setDescription("The first name is used for the administration user interfaces only.");
        tf.setComponentError(new SystemError(
                "You must enter only one first name."));


        main.addComponent(tf);
    }

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