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remote-object.md
001 # Remote Object Proxy
002
003 The remote object implementation is a mechanism that enables an local object to control an other object on an other server.
004 Each call method on the local object will do a network call to get information or execute operations on the remote object.
005
006 ## What is remote object proxy ?
007
008 A remote object is based on an interface. The remote interface defines the API that a consumer can call. This interface
009 must be implemented both by the client and the RPC server.
010
011 ## Adapters
012
013 ZendFramework's RPC components (XmlRpc, JsonRpc & Soap) can be used easily with the remote object.
014 You will need to require the one you need via composer, though:
015
016 ```sh
017 $ php composer.phar require zendframework/zend-xmlrpc:2.*
018 $ php composer.phar require zendframework/zend-json:2.*
019 $ php composer.phar require zendframework/zend-soap:2.*
020 ```
021
022 ProxyManager comes with 3 adapters:
023
024 * `ProxyManager\Factory\RemoteObject\Adapter\XmlRpc`
025 * `ProxyManager\Factory\RemoteObject\Adapter\JsonRpc`
026 * `ProxyManager\Factory\RemoteObject\Adapter\Soap`
027
028 ## Usage examples
029
030 RPC server side code (`xmlrpc.php` in your local webroot):
031
032 ```php
033 interface FooServiceInterface
034 {
035 public function foo();
036 }
037
038 class Foo implements FooServiceInterface
039 {
040 /**
041 * Foo function
042 * @return string
043 */
044 public function foo()
045 {
046 return 'bar remote';
047 }
048 }
049
050 $server = new Zend\XmlRpc\Server();
051 $server->setClass('Foo', 'FooServiceInterface'); // my FooServiceInterface implementation
052 $server->handle();
053 ```
054
055 Client side code (proxy) :
056
057 ```php
058
059 interface FooServiceInterface
060 {
061 public function foo();
062 }
063
064 $factory = new \ProxyManager\Factory\RemoteObjectFactory(
065 new \ProxyManager\Factory\RemoteObject\Adapter\XmlRpc(
066 new \Zend\XmlRpc\Client('https://localhost/xmlrpc.php')
067 )
068 );
069
070 $proxy = $factory->createProxy('FooServiceInterface');
071
072 var_dump($proxy->foo()); // "bar remote"
073 ```
074
075 ## Implementing custom adapters
076
077 Your adapters must implement `ProxyManager\Factory\RemoteObject\AdapterInterface` :
078
079 ```php
080 interface AdapterInterface
081 {
082 /**
083 * Call remote object
084 *
085 * @param string $wrappedClass
086 * @param string $method
087 * @param array $params
088 *
089 * @return mixed
090 */
091 public function call($wrappedClass, $method, array $params = array());
092 }
093 ```
094
095 It is very easy to create your own implementation (for RESTful web services, for example). Simply pass
096 your own adapter instance to your factory at construction time
097
098 ## Tuning performance for production
099
100 See [Tuning ProxyManager for Production](https://github.com/Ocramius/ProxyManager/blob/master/docs/tuning-for-production.md).
101