Merge branch '4.3' into 4.4

* 4.3:
  Replace public and protected field entity by private

Author: javiereguiluz

validation.rst

@@ -36,7 +36,7 @@ your application::
 
     class Author
     {
-        public $name;
+        private $name;
     }
 
 So far, this is just an ordinary class that serves some purpose inside your
@@ -55,6 +55,7 @@ following:
     .. code-block:: php-annotations
 
         // src/Entity/Author.php
+        namespace App\Entity;
 
         // ...
         use Symfony\Component\Validator\Constraints as Assert;
@@ -64,7 +65,7 @@ following:
             /**
              * @Assert\NotBlank
              */
-            public $name;
+            private $name;
         }
 
     .. code-block:: yaml
@@ -94,14 +95,14 @@ following:
     .. code-block:: php
 
         // src/Entity/Author.php
-
+        namespace App\Entity;
         // ...
         use Symfony\Component\Validator\Constraints\NotBlank;
         use Symfony\Component\Validator\Mapping\ClassMetadata;
 
         class Author
         {
-            public $name;
+            private $name;
 
             public static function loadValidatorMetadata(ClassMetadata $metadata)
             {
@@ -111,8 +112,9 @@ following:
 
 .. tip::
 
-    Protected and private properties can also be validated, as well as "getter"
-    methods (see :ref:`validator-constraint-targets`).
+    Symfony's validator uses PHP reflection, as well as *"getter"* methods, to
+    get the value of any property, so they can be public, private or protected
+    (see :ref:`validator-constraint-targets`).
 
 .. index::
    single: Validation; Using the validator
@@ -325,6 +327,7 @@ literature genre mostly associated with the author, which can be set to either
     .. code-block:: php-annotations
 
         // src/Entity/Author.php
+        namespace App\Entity;
 
         // ...
         use Symfony\Component\Validator\Constraints as Assert;
@@ -337,7 +340,7 @@ literature genre mostly associated with the author, which can be set to either
              *     message = "Choose a valid genre."
              * )
              */
-            public $genre;
+            private $genre;
 
             // ...
         }
@@ -378,14 +381,15 @@ literature genre mostly associated with the author, which can be set to either
     .. code-block:: php
 
         // src/Entity/Author.php
+        namespace App\Entity;
 
         // ...
         use Symfony\Component\Validator\Constraints as Assert;
         use Symfony\Component\Validator\Mapping\ClassMetadata;
 
         class Author
         {
-            public $genre;
+            private $genre;
 
             // ...
 
@@ -412,6 +416,7 @@ options can be specified in this way.
     .. code-block:: php-annotations
 
         // src/Entity/Author.php
+        namespace App\Entity;
 
         // ...
         use Symfony\Component\Validator\Constraints as Assert;
@@ -421,7 +426,7 @@ options can be specified in this way.
             /**
              * @Assert\Choice({"fiction", "non-fiction"})
              */
-            protected $genre;
+            private $genre;
 
             // ...
         }
@@ -459,14 +464,15 @@ options can be specified in this way.
     .. code-block:: php
 
         // src/Entity/Author.php
+        namespace App\Entity;
 
         // ...
         use Symfony\Component\Validator\Constraints as Assert;
         use Symfony\Component\Validator\Mapping\ClassMetadata;
 
         class Author
         {
-            protected $genre;
+            private $genre;
 
             public static function loadValidatorMetadata(ClassMetadata $metadata)
             {
@@ -579,6 +585,7 @@ class to have at least 3 characters.
     .. code-block:: php
 
         // src/Entity/Author.php
+        namespace App\Entity;
 
         // ...
         use Symfony\Component\Validator\Constraints as Assert;
@@ -620,6 +627,7 @@ this method must return ``true``:
     .. code-block:: php-annotations
 
         // src/Entity/Author.php
+        namespace App\Entity;
 
         // ...
         use Symfony\Component\Validator\Constraints as Assert;
@@ -664,6 +672,7 @@ this method must return ``true``:
     .. code-block:: php
 
         // src/Entity/Author.php
+        namespace App\Entity;
 
         // ...
         use Symfony\Component\Validator\Constraints as Assert;