From d46ff97367b32ecab01f7dc0f7efda13373cc4c0 Mon Sep 17 00:00:00 2001
From: Marcus Hellberg <marcus@vaadin.com>
Date: Tue, 2 Apr 2024 10:02:00 -0700
Subject: [PATCH] Change form biding to use BeanValidationBinder

---
 .../src/main/java/com/baeldung/spring/EmployeeEditor.java  | 7 ++++---
 .../src/main/java/com/baeldung/spring/EmployeesView.java   | 2 +-
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/vaadin/src/main/java/com/baeldung/spring/EmployeeEditor.java b/vaadin/src/main/java/com/baeldung/spring/EmployeeEditor.java
index 0bc2c61e20..7984ecce05 100644
--- a/vaadin/src/main/java/com/baeldung/spring/EmployeeEditor.java
+++ b/vaadin/src/main/java/com/baeldung/spring/EmployeeEditor.java
@@ -9,6 +9,7 @@ import com.vaadin.flow.component.icon.VaadinIcon;
 import com.vaadin.flow.component.orderedlayout.HorizontalLayout;
 import com.vaadin.flow.component.orderedlayout.VerticalLayout;
 import com.vaadin.flow.component.textfield.TextField;
+import com.vaadin.flow.data.binder.BeanValidationBinder;
 import com.vaadin.flow.data.binder.Binder;
 
 public class EmployeeEditor extends Composite<VerticalLayout> {
@@ -31,7 +32,7 @@ public class EmployeeEditor extends Composite<VerticalLayout> {
     private DeleteListener deleteListener;
     private CancelListener cancelListener;
 
-    private final Binder<Employee> binder = new Binder<>(Employee.class);
+    private final Binder<Employee> binder = new BeanValidationBinder<>(Employee.class);
 
 public EmployeeEditor() {
     var firstName = new TextField("First name");
@@ -41,8 +42,8 @@ public EmployeeEditor() {
     var cancel = new Button("Cancel");
     var delete = new Button("Delete", VaadinIcon.TRASH.create());
 
-    binder.forField(firstName).bind(Employee::getFirstName, Employee::setFirstName);
-    binder.forField(lastName).bind(Employee::getLastName, Employee::setLastName);
+    binder.forField(firstName).bind("firstName");
+    binder.forField(lastName).bind("lastName");
 
     save.addThemeVariants(ButtonVariant.LUMO_PRIMARY);
     save.addClickListener(e -> save());
diff --git a/vaadin/src/main/java/com/baeldung/spring/EmployeesView.java b/vaadin/src/main/java/com/baeldung/spring/EmployeesView.java
index 8b78b1b1c5..edb1f7a75b 100644
--- a/vaadin/src/main/java/com/baeldung/spring/EmployeesView.java
+++ b/vaadin/src/main/java/com/baeldung/spring/EmployeesView.java
@@ -37,7 +37,7 @@ public class EmployeesView extends VerticalLayout {
         addButton.addClickListener(e -> editEmployee(new Employee()));
 
         filter.setPlaceholder("Filter by last name");
-        filter.setValueChangeMode(ValueChangeMode.EAGER);
+        filter.setValueChangeMode(ValueChangeMode.LAZY);
         filter.addValueChangeListener(e -> updateEmployees(e.getValue()));
 
         grid.setHeight("200px");