remove initialize method from extensions

src/Mapped/Extension.php

@@ -5,14 +5,6 @@
 /**
  * Extension.
  */
-abstract class Extension
+interface Extension
 {
-    /**
-     * This method is called when a new mapping is created.
-     *
-     * @param Mapping $mapping The mapping object
-     */
-    public function initialize(Mapping $mapping)
-    {
-    }
 }

src/Mapped/Extension/Constraints.php

@@ -9,7 +9,7 @@
 /**
  * Enriches mapping objects with validation and transformation methods.
  */
-class Constraints extends Extension
+class Constraints implements Extension
 {
     /**
      * Checks if the value is not empty.

src/Mapped/Extension/Multiple.php

@@ -10,7 +10,7 @@
 /**
  * Multiple extension.
  */
-class Multiple extends Extension
+class Multiple implements Extension
 {
     /**
      * Makes this mapping to a multiple.

src/Mapped/Extension/SymfonyValidation.php

@@ -14,7 +14,7 @@
 /**
  * This extension allows you to use Symfony's validation constraints.
  */
-class SymfonyValidation extends Extension
+class SymfonyValidation implements Extension
 {
     protected $validator;
 

src/Mapped/Extension/Verifying.php

@@ -8,7 +8,7 @@
 /**
  * This extension provides a simpler API to add custom constraints.
  */
-class Verifying extends Extension
+class Verifying implements Extension
 {
     /**
      * Adds a callback constraint to the mapping.

src/Mapped/Mapping.php

@@ -27,9 +27,6 @@ public function __construct(EventDispatcherInterface $dispatcher, array $extensi
     {
         $this->dispatcher = $dispatcher;
         $this->extensions = $extensions;
-        foreach ($extensions as $extension) {
-            $extension->initialize($this);
-        }
     }
 
     /**
@@ -82,10 +79,6 @@ public function getTransformers()
      */
     public function __call($method, $arguments)
     {
-        if ('initialize' === $method) {
-            return;
-        }
-
         foreach ($this->extensions as $extension) {
             if (false === method_exists($extension, $method)) {
                 continue;

tests/Mapped/Tests/Fixtures/FooExtension.php

@@ -5,7 +5,7 @@
 use Mapped\Mapping;
 use Mapped\Extension;
 
-class FooExtension extends Extension
+class FooExtension implements Extension
 {
     public function initialize(Mapping $mapping)
     {

tests/Mapped/Tests/MappingTest.php

@@ -7,25 +7,6 @@
 
 class MappingTest extends MappedTestCase
 {
-    public function testInitialize()
-    {
-        $ext = $this->getMock('Mapped\Extension');
-        $ext->expects($this->once())
-            ->method('initialize');
-
-        $mapping = $this->createMapping([$ext]);
-    }
-
-    public function testInitializeMethodMustNotBeCallable()
-    {
-        $ext = $this->getMock('Mapped\Extension');
-        $ext->expects($this->once())
-            ->method('initialize');
-
-        $mapping = $this->createMapping([$ext]);
-        $mapping->initialize($mapping);
-    }
-
     public function testValidExtensionMethod()
     {
         $mapping = $this->createMapping([