Add item level validator support to Binder

An item level validator is run on the item (bean) after field validators
have passed. A failed item level validator will block save operations,
just like field level validators.

Change-Id: I3b918b33371ceef07cdfbd0a8b6d477d4ac26b85

1 files changed, 6 insertions, 0 deletions

diff --git a/server/src/main/java/com/vaadin/data/BeanBinder.java b/server/src/main/java/com/vaadin/data/BeanBinder.java
index 18985bc90c..63ad9ef04f 100644
--- a/server/src/main/java/com/vaadin/data/BeanBinder.java
+++ b/server/src/main/java/com/vaadin/data/BeanBinder.java
@@ -311,6 +311,11 @@ public class BeanBinder<BEAN> extends Binder<BEAN> {
     }
 
     @Override
+    public BeanBinder<BEAN> withValidator(Validator<? super BEAN> validator) {
+        return (BeanBinder<BEAN>) super.withValidator(validator);
+    }
+
+    @Override
     protected <FIELDVALUE, TARGET> BeanBindingImpl<BEAN, FIELDVALUE, TARGET> createBinding(
             HasValue<FIELDVALUE> field, Converter<FIELDVALUE, TARGET> converter,
             StatusChangeHandler handler) {
@@ -318,4 +323,5 @@ public class BeanBinder<BEAN> extends Binder<BEAN> {
         Objects.requireNonNull(converter, "converter cannot be null");
         return new BeanBindingImpl<>(this, field, converter, handler);
     }
+
 }