diff --git a/.gitignore b/.gitignore
index 1bfef2a..3d17b4f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 vendor
 node_modules
 bin
+phpunit.xml
\ No newline at end of file
diff --git a/README.md b/README.md
index 01229e5..e44b5e4 100644
--- a/README.md
+++ b/README.md
@@ -7,6 +7,12 @@ Patch Manager
 
 A php library to manage PATCH requests in a standardized (and elegant) way
 
+### Be careful!!!
+
+*From version 0.3 namespace will change from PatchManager\\... to Cypress\\PatchManager\\...*
+
+## Install
+
 Install with composer
 
 ``` json
diff --git a/composer.json b/composer.json
index 5b8f56f..b834682 100644
--- a/composer.json
+++ b/composer.json
@@ -22,8 +22,8 @@
     },
     "autoload": {
         "psr-4": {
-            "PatchManager\\": "src/PatchManager/",
-            "PatchManager\\Tests\\": "tests/PatchManager/"
+            "Cypress\\PatchManager\\": "src/PatchManager/",
+            "Cypress\\PatchManager\\Tests\\": "tests/PatchManager/"
         }
     },
     "license": "LGPL-3.0+",
diff --git a/examples/data_handler.php b/examples/data_handler.php
index 56ac2c8..8c2eba4 100644
--- a/examples/data_handler.php
+++ b/examples/data_handler.php
@@ -2,12 +2,12 @@
 
 require_once __DIR__.'/../vendor/autoload.php';
 
-use PatchManager\Request\Operations;
-use PatchManager\OperationMatcher;
-use PatchManager\Handler\DataHandler;
-use PatchManager\PatchManager;
+use Cypress\PatchManager\Request\Operations;
+use Cypress\PatchManager\OperationMatcher;
+use Cypress\PatchManager\Handler\DataHandler;
+use Cypress\PatchManager\PatchManager;
 
-class Subject implements \PatchManager\Patchable
+class Subject implements \Cypress\PatchManager\Patchable
 {
     private $a = 1;
 
diff --git a/src/PatchManager/Bundle/DependencyInjection/Configuration.php b/src/PatchManager/Bundle/DependencyInjection/Configuration.php
index 5bed766..6a1eb04 100644
--- a/src/PatchManager/Bundle/DependencyInjection/Configuration.php
+++ b/src/PatchManager/Bundle/DependencyInjection/Configuration.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace PatchManager\Bundle\DependencyInjection;
+namespace Cypress\PatchManager\Bundle\DependencyInjection;
 
 use Symfony\Component\Config\Definition\Builder\TreeBuilder;
 use Symfony\Component\Config\Definition\ConfigurationInterface;
diff --git a/src/PatchManager/Bundle/DependencyInjection/PatchManagerCompilerPass.php b/src/PatchManager/Bundle/DependencyInjection/PatchManagerCompilerPass.php
index 24f3e1a..48a71bb 100644
--- a/src/PatchManager/Bundle/DependencyInjection/PatchManagerCompilerPass.php
+++ b/src/PatchManager/Bundle/DependencyInjection/PatchManagerCompilerPass.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace PatchManager\Bundle\DependencyInjection;
+namespace Cypress\PatchManager\Bundle\DependencyInjection;
 
 use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
diff --git a/src/PatchManager/Bundle/DependencyInjection/PatchManagerExtension.php b/src/PatchManager/Bundle/DependencyInjection/PatchManagerExtension.php
index a4e07e1..eb5dd20 100644
--- a/src/PatchManager/Bundle/DependencyInjection/PatchManagerExtension.php
+++ b/src/PatchManager/Bundle/DependencyInjection/PatchManagerExtension.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace PatchManager\Bundle\DependencyInjection;
+namespace Cypress\PatchManager\Bundle\DependencyInjection;
 
 use Symfony\Component\Config\FileLocator;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
diff --git a/src/PatchManager/Bundle/PatchManagerBundle.php b/src/PatchManager/Bundle/PatchManagerBundle.php
index 3b4166f..a2e2588 100644
--- a/src/PatchManager/Bundle/PatchManagerBundle.php
+++ b/src/PatchManager/Bundle/PatchManagerBundle.php
@@ -1,8 +1,8 @@
 <?php
 
-namespace PatchManager\Bundle;
+namespace Cypress\PatchManager\Bundle;
 
-use PatchManager\Bundle\DependencyInjection\PatchManagerCompilerPass;
+use Cypress\PatchManager\Bundle\DependencyInjection\PatchManagerCompilerPass;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
 use Symfony\Component\HttpKernel\Bundle\Bundle;
 
diff --git a/src/PatchManager/Bundle/RequestAdapter/RequestStackAdapter.php b/src/PatchManager/Bundle/RequestAdapter/RequestStackAdapter.php
index fee18f7..50ddcb2 100644
--- a/src/PatchManager/Bundle/RequestAdapter/RequestStackAdapter.php
+++ b/src/PatchManager/Bundle/RequestAdapter/RequestStackAdapter.php
@@ -1,9 +1,9 @@
 <?php
 
-namespace PatchManager\Bundle\RequestAdapter;
+namespace Cypress\PatchManager\Bundle\RequestAdapter;
 
-use PatchManager\Request\Adapter;
-use PatchManager\Request\Operations;
+use Cypress\PatchManager\Request\Adapter;
+use Cypress\PatchManager\Request\Operations;
 use Symfony\Component\HttpFoundation\RequestStack;
 
 class RequestStackAdapter implements Adapter
diff --git a/src/PatchManager/Bundle/Resources/config/handlers/data.xml b/src/PatchManager/Bundle/Resources/config/handlers/data.xml
index 5c1789d..2727059 100644
--- a/src/PatchManager/Bundle/Resources/config/handlers/data.xml
+++ b/src/PatchManager/Bundle/Resources/config/handlers/data.xml
@@ -5,6 +5,6 @@
     xsi:schemaLocation="http://symfony.com/schema/dic/services http://symfony.com/schema/dic/services/services-1.0.xsd">
 
     <services>
-        <service id="patch_manager.handler.data" public="false" class="PatchManager\Handler\DataHandler" />
+        <service id="patch_manager.handler.data" public="false" class="Cypress\PatchManager\Handler\DataHandler" />
     </services>
 </container>
diff --git a/src/PatchManager/Bundle/Resources/config/handlers/data_doctrine.xml b/src/PatchManager/Bundle/Resources/config/handlers/data_doctrine.xml
index 8c06e9e..4555068 100644
--- a/src/PatchManager/Bundle/Resources/config/handlers/data_doctrine.xml
+++ b/src/PatchManager/Bundle/Resources/config/handlers/data_doctrine.xml
@@ -5,6 +5,6 @@
     xsi:schemaLocation="http://symfony.com/schema/dic/services http://symfony.com/schema/dic/services/services-1.0.xsd">
 
     <services>
-        <service id="patch_manager.handler.data" public="false" class="PatchManager\Handler\DataDoctrineHandler" />
+        <service id="patch_manager.handler.data" public="false" class="Cypress\PatchManager\Handler\DataDoctrineHandler" />
     </services>
 </container>
diff --git a/src/PatchManager/Bundle/Resources/config/handlers/state_machine.xml b/src/PatchManager/Bundle/Resources/config/handlers/state_machine.xml
index 43b9b43..3bb96df 100644
--- a/src/PatchManager/Bundle/Resources/config/handlers/state_machine.xml
+++ b/src/PatchManager/Bundle/Resources/config/handlers/state_machine.xml
@@ -5,7 +5,7 @@
     xsi:schemaLocation="http://symfony.com/schema/dic/services http://symfony.com/schema/dic/services/services-1.0.xsd">
 
     <services>
-        <service id="patch_manager.handler.state_machine" public="false" class="PatchManager\Handler\FiniteHandler">
+        <service id="patch_manager.handler.state_machine" public="false" class="Cypress\PatchManager\Handler\FiniteHandler">
             <argument type="service" id="finite.factory" />
         </service>
     </services>
diff --git a/src/PatchManager/Bundle/Resources/config/services.xml b/src/PatchManager/Bundle/Resources/config/services.xml
index 4ebdc80..c43aa27 100644
--- a/src/PatchManager/Bundle/Resources/config/services.xml
+++ b/src/PatchManager/Bundle/Resources/config/services.xml
@@ -5,16 +5,16 @@
     xsi:schemaLocation="http://symfony.com/schema/dic/services http://symfony.com/schema/dic/services/services-1.0.xsd">
 
     <services>
-        <service id="patch_manager.request_adapter" class="PatchManager\Bundle\RequestAdapter\RequestStackAdapter">
+        <service id="patch_manager.request_adapter" class="Cypress\PatchManager\Bundle\RequestAdapter\RequestStackAdapter">
             <argument type="service" id="request_stack" />
         </service>
-        <service id="patch_manager.operations" public="false" class="PatchManager\Request\Operations">
+        <service id="patch_manager.operations" public="false" class="Cypress\PatchManager\Request\Operations">
             <configurator service="patch_manager.request_adapter" method="setRequestBody" />
         </service>
-        <service id="patch_manager.operation_matcher" public="false" class="PatchManager\OperationMatcher">
+        <service id="patch_manager.operation_matcher" public="false" class="Cypress\PatchManager\OperationMatcher">
             <argument type="service" id="patch_manager.operations" />
         </service>
-        <service id="patch_manager" public="true" class="PatchManager\PatchManager">
+        <service id="patch_manager" public="true" class="Cypress\PatchManager\PatchManager">
             <argument type="service" id="patch_manager.operation_matcher" />
             <argument>%patch_manager.strict_mode%</argument>
         </service>
diff --git a/src/PatchManager/Event/PatchManagerEvent.php b/src/PatchManager/Event/PatchManagerEvent.php
index 962af56..48c16d6 100644
--- a/src/PatchManager/Event/PatchManagerEvent.php
+++ b/src/PatchManager/Event/PatchManagerEvent.php
@@ -1,9 +1,9 @@
 <?php
 
-namespace PatchManager\Event;
+namespace Cypress\PatchManager\Event;
 
-use PatchManager\MatchedPatchOperation;
-use PatchManager\Patchable;
+use Cypress\PatchManager\MatchedPatchOperation;
+use Cypress\PatchManager\Patchable;
 use Symfony\Component\EventDispatcher\Event;
 
 class PatchManagerEvent extends Event
diff --git a/src/PatchManager/Event/PatchManagerEvents.php b/src/PatchManager/Event/PatchManagerEvents.php
index ab68b48..aca98e2 100644
--- a/src/PatchManager/Event/PatchManagerEvents.php
+++ b/src/PatchManager/Event/PatchManagerEvents.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace PatchManager\Event;
+namespace Cypress\PatchManager\Event;
 
 final class PatchManagerEvents
 {
diff --git a/src/PatchManager/Exception/HandlerNotFoundException.php b/src/PatchManager/Exception/HandlerNotFoundException.php
index ca0eff7..bc07248 100644
--- a/src/PatchManager/Exception/HandlerNotFoundException.php
+++ b/src/PatchManager/Exception/HandlerNotFoundException.php
@@ -1,7 +1,7 @@
 <?php
 
 
-namespace PatchManager\Exception;
+namespace Cypress\PatchManager\Exception;
 
 
 use Exception;
diff --git a/src/PatchManager/Exception/InvalidJsonRequestContent.php b/src/PatchManager/Exception/InvalidJsonRequestContent.php
index b0bc5cf..fd6df25 100644
--- a/src/PatchManager/Exception/InvalidJsonRequestContent.php
+++ b/src/PatchManager/Exception/InvalidJsonRequestContent.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace PatchManager\Exception;
+namespace Cypress\PatchManager\Exception;
 
 class InvalidJsonRequestContent extends PatchManagerException
 {
diff --git a/src/PatchManager/Exception/MissingOperationNameRequest.php b/src/PatchManager/Exception/MissingOperationNameRequest.php
index 72954bc..4f8857d 100644
--- a/src/PatchManager/Exception/MissingOperationNameRequest.php
+++ b/src/PatchManager/Exception/MissingOperationNameRequest.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace PatchManager\Exception;
+namespace Cypress\PatchManager\Exception;
 
 use Exception;
 
diff --git a/src/PatchManager/Exception/MissingOperationRequest.php b/src/PatchManager/Exception/MissingOperationRequest.php
index dbdaf30..61d5a7b 100644
--- a/src/PatchManager/Exception/MissingOperationRequest.php
+++ b/src/PatchManager/Exception/MissingOperationRequest.php
@@ -1,7 +1,7 @@
 <?php
 
 
-namespace PatchManager\Exception;
+namespace Cypress\PatchManager\Exception;
 
 
 class MissingOperationRequest extends PatchManagerException
diff --git a/src/PatchManager/Exception/NonExistentOperationException.php b/src/PatchManager/Exception/NonExistentOperationException.php
index eb01215..a76dd0d 100644
--- a/src/PatchManager/Exception/NonExistentOperationException.php
+++ b/src/PatchManager/Exception/NonExistentOperationException.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace PatchManager\Exception;
+namespace Cypress\PatchManager\Exception;
 
 class NonExistentOperationException extends PatchManagerException
 {
diff --git a/src/PatchManager/Exception/PatchManagerException.php b/src/PatchManager/Exception/PatchManagerException.php
index 0af4284..9941c2b 100644
--- a/src/PatchManager/Exception/PatchManagerException.php
+++ b/src/PatchManager/Exception/PatchManagerException.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace PatchManager\Exception;
+namespace Cypress\PatchManager\Exception;
 
 class PatchManagerException extends \Exception
 {
diff --git a/src/PatchManager/Handler/DataDoctrineHandler.php b/src/PatchManager/Handler/DataDoctrineHandler.php
index d8ba0dc..3a1991f 100644
--- a/src/PatchManager/Handler/DataDoctrineHandler.php
+++ b/src/PatchManager/Handler/DataDoctrineHandler.php
@@ -1,9 +1,9 @@
 <?php
 
-namespace PatchManager\Handler;
+namespace Cypress\PatchManager\Handler;
 
 use Doctrine\ORM\EntityManagerInterface;
-use PatchManager\OperationData;
+use Cypress\PatchManager\OperationData;
 use Symfony\Component\PropertyAccess\PropertyAccessor;
 use Doctrine\Common\Persistence\Proxy;
 
diff --git a/src/PatchManager/Handler/DataHandler.php b/src/PatchManager/Handler/DataHandler.php
index fe71daa..cabd143 100644
--- a/src/PatchManager/Handler/DataHandler.php
+++ b/src/PatchManager/Handler/DataHandler.php
@@ -1,9 +1,9 @@
 <?php
 
-namespace PatchManager\Handler;
+namespace Cypress\PatchManager\Handler;
 
-use PatchManager\OperationData;
-use PatchManager\PatchOperationHandler;
+use Cypress\PatchManager\OperationData;
+use Cypress\PatchManager\PatchOperationHandler;
 use Symfony\Component\OptionsResolver\OptionsResolver;
 use Symfony\Component\PropertyAccess\PropertyAccessor;
 
@@ -54,4 +54,15 @@ public function configureOptions(OptionsResolver $optionsResolver)
     {
         $optionsResolver->setRequired(array('property', 'value'));
     }
+
+    /**
+     * wether the handler is able to handle the given subject
+     *
+     * @param $subject
+     * @return bool
+     */
+    public function canHandle($subject)
+    {
+        return true;
+    }
 }
diff --git a/src/PatchManager/Handler/FiniteHandler.php b/src/PatchManager/Handler/FiniteHandler.php
index 2fcb0e1..2e7e342 100644
--- a/src/PatchManager/Handler/FiniteHandler.php
+++ b/src/PatchManager/Handler/FiniteHandler.php
@@ -1,10 +1,10 @@
 <?php
 
-namespace PatchManager\Handler;
+namespace Cypress\PatchManager\Handler;
 
 use Finite\Factory\FactoryInterface;
-use PatchManager\OperationData;
-use PatchManager\PatchOperationHandler;
+use Cypress\PatchManager\OperationData;
+use Cypress\PatchManager\PatchOperationHandler;
 use Symfony\Component\OptionsResolver\OptionsResolver;
 
 class FiniteHandler implements PatchOperationHandler
@@ -60,4 +60,15 @@ public function configureOptions(OptionsResolver $optionsResolver)
             ->setDefined(array('check'))
             ->setDefaults(array('check' => false));
     }
+
+    /**
+     * wether the handler is able to handle the given subject
+     *
+     * @param $subject
+     * @return bool
+     */
+    public function canHandle($subject)
+    {
+        return true;
+    }
 }
diff --git a/src/PatchManager/MatchedPatchOperation.php b/src/PatchManager/MatchedPatchOperation.php
index e040eb3..2d183bd 100644
--- a/src/PatchManager/MatchedPatchOperation.php
+++ b/src/PatchManager/MatchedPatchOperation.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace PatchManager;
+namespace Cypress\PatchManager;
 
 use Symfony\Component\OptionsResolver\OptionsResolver;
 
diff --git a/src/PatchManager/OperationData.php b/src/PatchManager/OperationData.php
index 063442e..5659398 100644
--- a/src/PatchManager/OperationData.php
+++ b/src/PatchManager/OperationData.php
@@ -1,9 +1,9 @@
 <?php
 
 
-namespace PatchManager;
+namespace Cypress\PatchManager;
 
-use PatchManager\Request\Operations;
+use Cypress\PatchManager\Request\Operations;
 use PhpCollection\Map;
 use PhpCollection\Sequence;
 
diff --git a/src/PatchManager/OperationMatcher.php b/src/PatchManager/OperationMatcher.php
index 2852c1b..9b74230 100644
--- a/src/PatchManager/OperationMatcher.php
+++ b/src/PatchManager/OperationMatcher.php
@@ -1,9 +1,10 @@
 <?php
 
-namespace PatchManager;
+namespace Cypress\PatchManager;
 
-use PatchManager\Request\Operations;
+use Cypress\PatchManager\Request\Operations;
 use PhpCollection\Sequence;
+use PhpOption\Option;
 
 /**
  * Match the correct handlers based on actual operations
@@ -38,21 +39,31 @@ public function addHandler(PatchOperationHandler $handler)
     }
 
     /**
+     * @param $subject
+     *
      * @return Sequence
+     *
+     * @throws Exception\MissingOperationNameRequest
+     * @throws Exception\MissingOperationRequest
      */
-    public function getMatchedOperations()
+    public function getMatchedOperations($subject)
     {
         $handlers = $this->handlers;
         return $this->operations
             ->all()
             ->foldLeft(
                 new Sequence(),
-                function (Sequence $matchedOperations, array $operationData) use ($handlers) {
+                function (Sequence $matchedOperations, array $operationData) use ($handlers, $subject) {
+                    /** @var Option $handler */
                     $handler = $handlers->find(function (PatchOperationHandler $handler) use ($operationData) {
                         return $operationData[Operations::OP_KEY_NAME] === $handler->getName();
                     });
                     if ($handler->isDefined()) {
-                        $matchedOperations->add(MatchedPatchOperation::create($operationData, $handler->get()));
+                        /** @var PatchOperationHandler $patchOperationHandler */
+                        $patchOperationHandler = $handler->get();
+                        if ($patchOperationHandler->canHandle($subject)) {
+                            $matchedOperations->add(MatchedPatchOperation::create($operationData, $handler->get()));
+                        }
                     }
                     return $matchedOperations;
                 }
@@ -60,13 +71,16 @@ function (Sequence $matchedOperations, array $operationData) use ($handlers) {
     }
 
     /**
+     * @param $subject
+     *
      * @return Sequence
+     *
      * @throws Exception\MissingOperationNameRequest
      * @throws Exception\MissingOperationRequest
      */
-    public function getUnmatchedOperations()
+    public function getUnmatchedOperations($subject)
     {
-        $matchedOperations = $this->getMatchedOperations();
+        $matchedOperations = $this->getMatchedOperations($subject);
         return $this->operations
             ->all()
             ->filter(function (array $operationData) use ($matchedOperations) {
diff --git a/src/PatchManager/PatchManager.php b/src/PatchManager/PatchManager.php
index 80a127b..6cfe0fd 100644
--- a/src/PatchManager/PatchManager.php
+++ b/src/PatchManager/PatchManager.php
@@ -1,10 +1,10 @@
 <?php
 
-namespace PatchManager;
+namespace Cypress\PatchManager;
 
-use PatchManager\Event\PatchManagerEvent;
-use PatchManager\Event\PatchManagerEvents;
-use PatchManager\Exception\HandlerNotFoundException;
+use Cypress\PatchManager\Event\PatchManagerEvent;
+use Cypress\PatchManager\Event\PatchManagerEvents;
+use Cypress\PatchManager\Exception\HandlerNotFoundException;
 use Symfony\Component\EventDispatcher\EventDispatcherInterface;
 
 /**
@@ -52,13 +52,14 @@ public function setEventDispatcherInterface($eventDispatcherInterface)
      */
     public function handle($subject)
     {
-        if ($this->strictMode && $this->operationMatcher->getMatchedOperations()->isEmpty()) {
-            throw new HandlerNotFoundException($this->operationMatcher->getUnmatchedOperations());
+        $matchedOperations = $this->operationMatcher->getMatchedOperations($subject);
+        if ($this->strictMode && $matchedOperations->isEmpty()) {
+            throw new HandlerNotFoundException($this->operationMatcher->getUnmatchedOperations($subject));
         }
         if (is_array($subject) || $subject instanceof \Traversable) {
             $this->handleMany($subject);
         } else {
-            foreach ($this->operationMatcher->getMatchedOperations() as $matchedPatchOperation) {
+            foreach ($matchedOperations as $matchedPatchOperation) {
                 $this->doHandle($matchedPatchOperation, $subject);
             }
         }
@@ -70,8 +71,8 @@ public function handle($subject)
      */
     private function handleMany($subjects)
     {
-        foreach ($this->operationMatcher->getMatchedOperations() as $matchedPatchOperation) {
-            foreach ($subjects as $subject) {
+        foreach ($subjects as $subject) {
+            foreach ($this->operationMatcher->getMatchedOperations($subject) as $matchedPatchOperation) {
                 $this->doHandle($matchedPatchOperation, $subject);
             }
         }
diff --git a/src/PatchManager/PatchOperationHandler.php b/src/PatchManager/PatchOperationHandler.php
index aac59f0..e1447c4 100644
--- a/src/PatchManager/PatchOperationHandler.php
+++ b/src/PatchManager/PatchOperationHandler.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace PatchManager;
+namespace Cypress\PatchManager;
 
 use Symfony\Component\OptionsResolver\OptionsResolver;
 
@@ -31,4 +31,12 @@ public function getName();
      * @return void
      */
     public function configureOptions(OptionsResolver $optionsResolver);
+
+    /**
+     * whether the handler is able to handle the given subject
+     *
+     * @param $subject
+     * @return bool
+     */
+    public function canHandle($subject);
 }
diff --git a/src/PatchManager/Patchable.php b/src/PatchManager/Patchable.php
index 94f8092..1b29d48 100644
--- a/src/PatchManager/Patchable.php
+++ b/src/PatchManager/Patchable.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace PatchManager;
+namespace Cypress\PatchManager;
 
 interface Patchable
 {
diff --git a/src/PatchManager/Request/Adapter.php b/src/PatchManager/Request/Adapter.php
index 0e8166b..b4b75ef 100644
--- a/src/PatchManager/Request/Adapter.php
+++ b/src/PatchManager/Request/Adapter.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace PatchManager\Request;
+namespace Cypress\PatchManager\Request;
 
 /**
  * Interface Adapter
diff --git a/src/PatchManager/Request/Operations.php b/src/PatchManager/Request/Operations.php
index 432b8c8..8216357 100644
--- a/src/PatchManager/Request/Operations.php
+++ b/src/PatchManager/Request/Operations.php
@@ -1,10 +1,10 @@
 <?php
 
-namespace PatchManager\Request;
+namespace Cypress\PatchManager\Request;
 
-use PatchManager\Exception\InvalidJsonRequestContent;
-use PatchManager\Exception\MissingOperationNameRequest;
-use PatchManager\Exception\MissingOperationRequest;
+use Cypress\PatchManager\Exception\InvalidJsonRequestContent;
+use Cypress\PatchManager\Exception\MissingOperationNameRequest;
+use Cypress\PatchManager\Exception\MissingOperationRequest;
 use PhpCollection\Sequence;
 
 class Operations
diff --git a/tests/PatchManager/Bundle/DependencyInjection/PatchManagerCompilerPassTest.php b/tests/PatchManager/Bundle/DependencyInjection/PatchManagerCompilerPassTest.php
index 6b547bd..0c94972 100644
--- a/tests/PatchManager/Bundle/DependencyInjection/PatchManagerCompilerPassTest.php
+++ b/tests/PatchManager/Bundle/DependencyInjection/PatchManagerCompilerPassTest.php
@@ -1,8 +1,9 @@
 <?php
 
-namespace PatchManager\Bundle\DependencyInjection;
+namespace Cypress\PatchManager\Tests\Bundle\DependencyInjection;
 
-use PatchManager\Tests\PatchManagerTestCase;
+use Cypress\PatchManager\Bundle\DependencyInjection\PatchManagerCompilerPass;
+use Cypress\PatchManager\Tests\PatchManagerTestCase;
 use Mockery as m;
 use Symfony\Component\DependencyInjection\Reference;
 
diff --git a/tests/PatchManager/Bundle/PatchManagerBundleTest.php b/tests/PatchManager/Bundle/PatchManagerBundleTest.php
index e06778a..50cbb3c 100644
--- a/tests/PatchManager/Bundle/PatchManagerBundleTest.php
+++ b/tests/PatchManager/Bundle/PatchManagerBundleTest.php
@@ -1,9 +1,9 @@
 <?php
 
-namespace PatchManager\Bundle;
+namespace Cypress\PatchManager\Bundle;
 
-use PatchManager\Bundle\DependencyInjection\PatchManagerCompilerPass;
-use PatchManager\Tests\PatchManagerTestCase;
+use Cypress\PatchManager\Bundle\DependencyInjection\PatchManagerCompilerPass;
+use Cypress\PatchManager\Tests\PatchManagerTestCase;
 
 class PatchManagerBundleTest extends PatchManagerTestCase
 {
diff --git a/tests/PatchManager/Bundle/RequestAdapter/RequestStackAdapterTest.php b/tests/PatchManager/Bundle/RequestAdapter/RequestStackAdapterTest.php
index 44920fc..a1a30a3 100644
--- a/tests/PatchManager/Bundle/RequestAdapter/RequestStackAdapterTest.php
+++ b/tests/PatchManager/Bundle/RequestAdapter/RequestStackAdapterTest.php
@@ -1,9 +1,9 @@
 <?php
 
-namespace PatchManager\Bundle\RequestAdapter;
+namespace Cypress\PatchManager\Bundle\RequestAdapter;
 
-use PatchManager\Request\Operations;
-use PatchManager\Tests\PatchManagerTestCase;
+use Cypress\PatchManager\Request\Operations;
+use Cypress\PatchManager\Tests\PatchManagerTestCase;
 use Mockery as m;
 
 class RequestStackAdapterTest extends PatchManagerTestCase
diff --git a/tests/PatchManager/Handler/DataDoctrineHandlerTest.php b/tests/PatchManager/Handler/DataDoctrineHandlerTest.php
index 4ace301..93860d0 100644
--- a/tests/PatchManager/Handler/DataDoctrineHandlerTest.php
+++ b/tests/PatchManager/Handler/DataDoctrineHandlerTest.php
@@ -1,10 +1,10 @@
 <?php
 
-namespace PatchManager\Handler;
+namespace Cypress\PatchManager\Handler;
 
-use PatchManager\OperationData;
-use PatchManager\Patchable;
-use PatchManager\Tests\PatchManagerTestCase;
+use Cypress\PatchManager\OperationData;
+use Cypress\PatchManager\Patchable;
+use Cypress\PatchManager\Tests\PatchManagerTestCase;
 use Mockery as m;
 
 class DataDoctrineHandlerTest extends PatchManagerTestCase
@@ -34,7 +34,7 @@ public function setUp()
         $this->metadata->shouldReceive('getAssociationTargetClass')->andReturn('TestClass');
         $this->metadata->shouldReceive('getTypeOfField')->andReturnNull()->byDefault();
         $this->em->shouldReceive('getMetadataFactory->getMetadataFor')
-            ->with('PatchManager\Handler\DataDoctrineSubject')
+            ->with('Cypress\PatchManager\Handler\DataDoctrineSubject')
             ->andReturn($this->metadata);
         $this->handler = new DataDoctrineHandler($this->em);
     }
diff --git a/tests/PatchManager/Handler/DataHandlerTest.php b/tests/PatchManager/Handler/DataHandlerTest.php
index 97791ed..5016b77 100644
--- a/tests/PatchManager/Handler/DataHandlerTest.php
+++ b/tests/PatchManager/Handler/DataHandlerTest.php
@@ -1,11 +1,11 @@
 <?php
 
 
-namespace PatchManager\Handler;
+namespace Cypress\PatchManager\Handler;
 
-use PatchManager\OperationData;
-use PatchManager\Patchable;
-use PatchManager\Tests\PatchManagerTestCase;
+use Cypress\PatchManager\OperationData;
+use Cypress\PatchManager\Patchable;
+use Cypress\PatchManager\Tests\PatchManagerTestCase;
 
 class DataHandlerTest extends PatchManagerTestCase
 {
diff --git a/tests/PatchManager/Handler/FiniteHandlerTest.php b/tests/PatchManager/Handler/FiniteHandlerTest.php
index f565d35..d13c86e 100644
--- a/tests/PatchManager/Handler/FiniteHandlerTest.php
+++ b/tests/PatchManager/Handler/FiniteHandlerTest.php
@@ -1,14 +1,14 @@
 <?php
 
-namespace PatchManager\Handler;
+namespace Cypress\PatchManager\Handler;
 
 use Finite\State\State;
 use Finite\State\StateInterface;
 use Finite\StatefulInterface;
 use Finite\StateMachine\StateMachine;
-use PatchManager\OperationData;
-use PatchManager\Patchable;
-use PatchManager\Tests\PatchManagerTestCase;
+use Cypress\PatchManager\OperationData;
+use Cypress\PatchManager\Patchable;
+use Cypress\PatchManager\Tests\PatchManagerTestCase;
 use Mockery as m;
 use Symfony\Component\OptionsResolver\OptionsResolver;
 
diff --git a/tests/PatchManager/MatchedPatchOperationTest.php b/tests/PatchManager/MatchedPatchOperationTest.php
index d6965e2..9a5bdba 100644
--- a/tests/PatchManager/MatchedPatchOperationTest.php
+++ b/tests/PatchManager/MatchedPatchOperationTest.php
@@ -1,9 +1,9 @@
 <?php
 
-namespace PatchManager\Tests;
+namespace Cypress\PatchManager\Tests;
 
-use PatchManager\MatchedPatchOperation;
-use PatchManager\OperationData;
+use Cypress\PatchManager\MatchedPatchOperation;
+use Cypress\PatchManager\OperationData;
 
 class MatchedPatchOperationTest extends PatchManagerTestCase
 {
@@ -23,7 +23,7 @@ public function test_process()
     }
 }
 
-class Patchable implements \PatchManager\Patchable
+class Patchable implements \Cypress\PatchManager\Patchable
 {
     private $a = 1;
 }
\ No newline at end of file
diff --git a/tests/PatchManager/OperationDataTest.php b/tests/PatchManager/OperationDataTest.php
index d0e4f50..ff7229e 100644
--- a/tests/PatchManager/OperationDataTest.php
+++ b/tests/PatchManager/OperationDataTest.php
@@ -1,8 +1,8 @@
 <?php
 
-namespace PatchManager\Tests;
+namespace Cypress\PatchManager\Tests;
 
-use PatchManager\OperationData;
+use Cypress\PatchManager\OperationData;
 use PhpCollection\Sequence;
 
 class OperationDataTest extends PatchManagerTestCase
diff --git a/tests/PatchManager/OperationMatcherTest.php b/tests/PatchManager/OperationMatcherTest.php
index 4a99348..a69569e 100644
--- a/tests/PatchManager/OperationMatcherTest.php
+++ b/tests/PatchManager/OperationMatcherTest.php
@@ -1,10 +1,10 @@
 <?php
 
-namespace PatchManager\Tests;
+namespace Cypress\PatchManager\Tests;
 
-use PatchManager\MatchedPatchOperation;
-use PatchManager\OperationData;
-use PatchManager\OperationMatcher;
+use Cypress\PatchManager\MatchedPatchOperation;
+use Cypress\PatchManager\OperationData;
+use Cypress\PatchManager\OperationMatcher;
 use Mockery as m;
 use PhpCollection\Sequence;
 
@@ -23,7 +23,7 @@ class OperationMatcherTest extends PatchManagerTestCase
     public function setUp()
     {
         parent::setUp();
-        $operations = m::mock('PatchManager\Request\Operations');
+        $operations = m::mock('Cypress\PatchManager\Request\Operations');
         $this->ops = new Sequence();
         $this->ops->add(array('op' => 'data'));
         $operations->shouldReceive('all')->andReturn($this->ops)->byDefault();
@@ -32,24 +32,24 @@ public function setUp()
 
     public function test_getMatchedOperations_without_handlers()
     {
-        $this->assertEquals(new Sequence(), $this->matcher->getMatchedOperations());
+        $this->assertEquals(new Sequence(), $this->matcher->getMatchedOperations('test'));
     }
 
     public function test_getMatchedOperations_with_handler_not_matching()
     {
         $this->matcher->addHandler($this->mockHandler('method'));
-        $this->assertInstanceOf('PhpCollection\Sequence', $this->matcher->getMatchedOperations());
-        $this->assertCount(0, $this->matcher->getMatchedOperations());
+        $this->assertInstanceOf('PhpCollection\Sequence', $this->matcher->getMatchedOperations('test'));
+        $this->assertCount(0, $this->matcher->getMatchedOperations('test'));
     }
 
     public function test_getMatchedOperations_with_matching_handler()
     {
         $this->matcher->addHandler($this->mockHandler('data'));
-        $this->assertInstanceOf('PhpCollection\Sequence', $this->matcher->getMatchedOperations());
-        $this->assertCount(1, $this->matcher->getMatchedOperations());
-        $mpos = $this->matcher->getMatchedOperations();
+        $this->assertInstanceOf('PhpCollection\Sequence', $this->matcher->getMatchedOperations('test'));
+        $this->assertCount(1, $this->matcher->getMatchedOperations('test'));
+        $mpos = $this->matcher->getMatchedOperations('test');
         $this->assertInstanceOf(
-            'PatchManager\MatchedPatchOperation',
+            'Cypress\PatchManager\MatchedPatchOperation',
             $mpos->find($this->handlerNameMatcher('data'))->get()
         );
     }
@@ -58,8 +58,8 @@ public function test_getMatchedOperations_with_multiple_operations_matching()
     {
         $this->ops->add(array('op' => 'data'));
         $this->matcher->addHandler($this->mockHandler('data'));
-        $this->assertInstanceOf('PhpCollection\Sequence', $this->matcher->getMatchedOperations());
-        $mpos = $this->matcher->getMatchedOperations();
+        $this->assertInstanceOf('PhpCollection\Sequence', $this->matcher->getMatchedOperations('test'));
+        $mpos = $this->matcher->getMatchedOperations('test');
         $this->assertCount(2, $mpos->filter($this->handlerNameMatcher('data')));
     }
 
@@ -68,11 +68,11 @@ public function test_getMatchedOperations_with_multiple_operations_matching_mult
         $this->ops->add(array('op' => 'method'));
         $this->matcher->addHandler($this->mockHandler('data'));
         $this->matcher->addHandler($this->mockHandler('method'));
-        $this->assertInstanceOf('PhpCollection\Sequence', $this->matcher->getMatchedOperations());
-        $this->assertCount(2, $this->matcher->getMatchedOperations());
-        $mpos = $this->matcher->getMatchedOperations();
+        $this->assertInstanceOf('PhpCollection\Sequence', $this->matcher->getMatchedOperations('test'));
+        $this->assertCount(2, $this->matcher->getMatchedOperations('test'));
+        $mpos = $this->matcher->getMatchedOperations('test');
         $this->assertInstanceOf(
-            'PatchManager\MatchedPatchOperation',
+            'Cypress\PatchManager\MatchedPatchOperation',
             $mpos->find($this->handlerNameMatcher('data'))->get()
         );
     }
@@ -80,10 +80,21 @@ public function test_getMatchedOperations_with_multiple_operations_matching_mult
     public function test_getUnmatchedOperations_with_handler_not_matching()
     {
         $this->matcher->addHandler($this->mockHandler('method'));
-        $this->assertInstanceOf('PhpCollection\Sequence', $this->matcher->getMatchedOperations());
-        $this->assertCount(1, $this->matcher->getUnmatchedOperations());
-        $this->assertInstanceOf('PhpCollection\Sequence', $this->matcher->getUnmatchedOperations());
-        $this->assertEquals(new Sequence(array('data')), $this->matcher->getUnmatchedOperations());
+        $this->assertInstanceOf('PhpCollection\Sequence', $this->matcher->getMatchedOperations('test'));
+        $this->assertCount(1, $this->matcher->getUnmatchedOperations('test'));
+        $this->assertInstanceOf('PhpCollection\Sequence', $this->matcher->getUnmatchedOperations('test'));
+        $this->assertEquals(new Sequence(array('data')), $this->matcher->getUnmatchedOperations('test'));
+    }
+
+    public function test_handler_that_responds_false_to_canHandle()
+    {
+        $this->matcher->addHandler($this->mockHandler('data', false));
+        $this->assertCount(0, $this->matcher->getMatchedOperations('test'));
+        $this->assertInstanceOf('PhpCollection\Sequence', $this->matcher->getMatchedOperations('test'));
+        $this->assertEquals(new Sequence(), $this->matcher->getMatchedOperations('test'));
+        $this->assertCount(1, $this->matcher->getUnmatchedOperations('test'));
+        $this->assertInstanceOf('PhpCollection\Sequence', $this->matcher->getUnmatchedOperations('test'));
+        $this->assertEquals(new Sequence(array('data')), $this->matcher->getUnmatchedOperations('test'));
     }
 
     private function handlerNameMatcher($name)
diff --git a/tests/PatchManager/PatchManagerTest.php b/tests/PatchManager/PatchManagerTest.php
index b223b55..5082d11 100644
--- a/tests/PatchManager/PatchManagerTest.php
+++ b/tests/PatchManager/PatchManagerTest.php
@@ -1,13 +1,14 @@
 <?php
 
-namespace PatchManager\Tests;
+namespace Cypress\PatchManager\Tests;
 
-use PatchManager\Handler\DataHandler;
-use PatchManager\MatchedPatchOperation;
-use PatchManager\OperationData;
-use PatchManager\OperationMatcher;
-use PatchManager\Patchable as IPatchable;
-use PatchManager\PatchManager;
+use Cypress\PatchManager\Exception\HandlerNotFoundException;
+use Cypress\PatchManager\Handler\DataHandler;
+use Cypress\PatchManager\MatchedPatchOperation;
+use Cypress\PatchManager\OperationData;
+use Cypress\PatchManager\OperationMatcher;
+use Cypress\PatchManager\Patchable as IPatchable;
+use Cypress\PatchManager\PatchManager;
 use PhpCollection\Sequence;
 use Mockery as m;
 
@@ -31,7 +32,7 @@ class PatchManagerTest extends PatchManagerTestCase
     public function setUp()
     {
         parent::setUp();
-        $this->operationMatcher = m::mock('PatchManager\OperationMatcher');
+        $this->operationMatcher = m::mock('Cypress\PatchManager\OperationMatcher');
         $this->operationMatcher->shouldReceive('getMatchedOperations')
             ->andReturn(new Sequence())->byDefault();
         $this->operationMatcher->shouldReceive('getUnmatchedOperations')
@@ -54,7 +55,7 @@ public function test_handle_without_required_keys()
     }
 
     /**
-     * @expectedException \PatchManager\Exception\HandlerNotFoundException
+     * @expectedException \Cypress\PatchManager\Exception\HandlerNotFoundException
      * @expectedExceptionMessage 'test'
      */
     public function test_strict_mode()
@@ -65,7 +66,7 @@ public function test_strict_mode()
     }
 
     /**
-     * @expectedException \PatchManager\Exception\HandlerNotFoundException
+     * @expectedException \Cypress\PatchManager\Exception\HandlerNotFoundException
      * @expectedExceptionMessage 'test, test2'
      */
     public function test_strict_mode_multiple_ops()
diff --git a/tests/PatchManager/PatchManagerTestCase.php b/tests/PatchManager/PatchManagerTestCase.php
index 2372108..a96156c 100644
--- a/tests/PatchManager/PatchManagerTestCase.php
+++ b/tests/PatchManager/PatchManagerTestCase.php
@@ -1,24 +1,36 @@
 <?php
 
-namespace PatchManager\Tests;
+namespace Cypress\PatchManager\Tests;
 
-use PatchManager\MatchedPatchOperation;
+use Cypress\PatchManager\MatchedPatchOperation;
+use Cypress\PatchManager\PatchOperationHandler;
 use Mockery as m;
 use Prophecy\PhpUnit\ProphecyTestCase;
 
 abstract class PatchManagerTestCase extends ProphecyTestCase
 {
-    protected function mockHandler($name = null)
+    /**
+     * @param null $name
+     * @param bool $canHandle
+     *
+     * @return PatchOperationHandler|m\MockInterface
+     */
+    protected function mockHandler($name = null, $canHandle = true)
     {
-        $handler = m::mock('PatchManager\PatchOperationHandler');
+        $handler = m::mock('Cypress\PatchManager\PatchOperationHandler');
         if (! is_null($name)) {
             $handler->shouldReceive('getName')->andReturn($name)->byDefault();
         }
         $handler->shouldReceive('getRequiredKeys')->andReturn(array())->byDefault();
         $handler->shouldReceive('configureOptions')->andReturn(array())->byDefault();
+        $handler->shouldReceive('canHandle')->andReturn($canHandle);
         return $handler;
     }
 
+    /**
+     * @param null $handlerName
+     * @return MatchedPatchOperation
+     */
     protected function getMatchedPatchOperation($handlerName = null)
     {
         return MatchedPatchOperation::create(array(), $this->mockHandler($handlerName));
diff --git a/tests/PatchManager/Request/OperationsTest.php b/tests/PatchManager/Request/OperationsTest.php
index d6b9d8f..0212416 100644
--- a/tests/PatchManager/Request/OperationsTest.php
+++ b/tests/PatchManager/Request/OperationsTest.php
@@ -1,15 +1,16 @@
 <?php
 
-namespace PatchManager\Tests\Request;
+namespace Cypress\PatchManager\Tests\Request;
 
-use PatchManager\Tests\PatchManagerTestCase;
-use PatchManager\Request\Operations;
+use Cypress\PatchManager\Exception\MissingOperationNameRequest;
+use Cypress\PatchManager\Tests\PatchManagerTestCase;
+use Cypress\PatchManager\Request\Operations;
 use Mockery as m;
 
 class OperationsTest extends PatchManagerTestCase
 {
     /**
-     * @expectedException \PatchManager\Exception\InvalidJsonRequestContent
+     * @expectedException \Cypress\PatchManager\Exception\InvalidJsonRequestContent
      */
     public function test_request_with_invalid_json()
     {
@@ -39,7 +40,7 @@ public function test_correct_operations_number_with_multiple_operation()
     }
 
     /**
-     * @expectedException \PatchManager\Exception\MissingOperationRequest
+     * @expectedException \Cypress\PatchManager\Exception\MissingOperationRequest
      */
     public function test_exeception_with_empty_request()
     {
@@ -49,7 +50,7 @@ public function test_exeception_with_empty_request()
     }
 
     /**
-     * @expectedException \PatchManager\Exception\MissingOperationNameRequest
+     * @expectedException \Cypress\PatchManager\Exception\MissingOperationNameRequest
      */
     public function test_exeception_with_operation_without_op()
     {
@@ -59,7 +60,7 @@ public function test_exeception_with_operation_without_op()
     }
 
     /**
-     * @expectedException \PatchManager\Exception\MissingOperationNameRequest
+     * @expectedException \Cypress\PatchManager\Exception\MissingOperationNameRequest
      */
     public function test_exeception_with_multiple_operation_without_op()
     {