Package com.vaadin.ui

Examples of com.vaadin.ui.TextField.addValidator()

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                if (!"".equals("" + value)) {
                    throw new InvalidValueException("Value is not empty string");
                }
            }
        });
        tx.addValidator(v2);

        final String[] visibleProps = { "required", "invalidAllowed",
                "readOnly", "readThrough", "invalidCommitted",
                "validationVisible" };
        for (int i = 0; i < visibleProps.length; i++) {
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                w.showNotification("TextField is " + (tf.isValid() ? "" : "in")
                        + "valid, with error: " + tf.getErrorMessage(),
                        Notification.TYPE_WARNING_MESSAGE);
            }
        });
        tf.addValidator(new Validator() {

            @Override
            public void validate(Object value) throws InvalidValueException {
                if (value == null || value.toString().length() <= 3) {
                    throw new InvalidValueException(
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public class TestReadOnlyValidation {

    @Test
    public void testIntegerValidation() {
        TextField field = new TextField();
        field.addValidator(new IntegerValidator("Enter a Valid Number"));
        field.setValue(String.valueOf(10));
        field.validate();
    }
}
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                + ". {0} is not.";
        IntegerRangeValidator validator = new IntegerRangeValidator(
                errorMessage, min, max);
        fieldWithError.setValue("142");

        fieldWithError.addValidator(validator);
        fieldWithError.setConverter(Integer.class);
        fieldWithError.setImmediate(true);

        TextField fieldWithoutError = new TextField();
        fieldWithoutError.addValidator(validator);
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        fieldWithError.addValidator(validator);
        fieldWithError.setConverter(Integer.class);
        fieldWithError.setImmediate(true);

        TextField fieldWithoutError = new TextField();
        fieldWithoutError.addValidator(validator);
        fieldWithoutError.setConverter(Integer.class);
        fieldWithoutError.setValue("42");
        addComponent(fieldWithError);
        addComponent(fieldWithoutError);
    }
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        form.setValidationVisible(true);
        form.setCaption("This is a form");
        form.setDescription("How do you do?");
        final TextField field1 = new TextField("Write here");
        field1.setImmediate(true);
        field1.addValidator(new Validator() {

            @Override
            public void validate(Object value) throws InvalidValueException {
                if (!isValid(value)) {
                    throw new InvalidValueException("FAIL!");
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        listOfAllFields.add(tf2);

        TextField tf3 = new TextField(
                "Text field with required=true and strlen >= 3");
        tf3.setRequired(true);
        tf3.addValidator(strLenValidator);
        listOfAllFields.add(tf3);

        TextField tf4 = new TextField(
                "Text field with required=false (default) and strlen >= 3");
        tf4.addValidator(strLenValidator);
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        tf3.addValidator(strLenValidator);
        listOfAllFields.add(tf3);

        TextField tf4 = new TextField(
                "Text field with required=false (default) and strlen >= 3");
        tf4.addValidator(strLenValidator);
        listOfAllFields.add(tf4);

        for (Iterator<TextField> i = listOfAllFields.iterator(); i.hasNext();) {
            TextField tf = i.next();
            main.addComponent(tf);
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            @Override
            protected boolean isValidValue(String value) {
                return value.matches("[1-9][0-9]{4}");
            }
        };
        tf.addValidator(postalCodeValidator);
        tf.setValue("12345");
        form.addField("k", tf);

        Button b = new Button("Commit", new ClickListener() {
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        final Form form = new Form(new VerticalLayout());

        // simple validators

        TextField tf = new TextField("A field, must contain 1-2 chars");
        tf.addValidator(new StringLengthValidator("Invalid length", 1, 2, false));
        tf.setRequired(true);
        tf.setValue("ab");
        form.addField("a", tf);

        tf = new TextField("A field, must contain an integer");
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