Integrated state and rejection handling interfaces

Upgraded version number to v0.2

Author: gplanchat

src/NullState.php

@@ -2,6 +2,8 @@
 
 namespace Kiboko\Contract\Pipeline;
 
+use Kiboko\Contract\Bucket\ResultBucketInterface;
+
 final class NullState implements StateInterface
 {
     public function initialize(int $start = 0): void
@@ -13,4 +15,14 @@ public function increment(int $step = 1): void
     {
         // NOOP
     }
+
+    public function reject(int $step = 1): void
+    {
+        // NOOP
+    }
+
+    public function incrementFromBucket(ResultBucketInterface $bucket): void
+    {
+        // NOOP
+    }
 }

src/StateInterface.php

@@ -2,8 +2,12 @@
 
 namespace Kiboko\Contract\Pipeline;
 
+use Kiboko\Contract\Bucket\ResultBucketInterface;
+
 interface StateInterface
 {
     public function initialize(int $start = 0): void;
     public function increment(int $step = 1): void;
+    public function reject(int $step = 1): void;
+    public function incrementFromBucket(ResultBucketInterface $bucket): void;
 }