Added some methods in the HandlerInterface and some typehints

src/Monolog/Handler/HandlerInterface.php

@@ -11,6 +11,8 @@
 
 namespace Monolog\Handler;
 
+use Monolog\Formatter\FormatterInterface;
+
 /**
  * Interface that all Monolog Handlers must implement
  *
@@ -18,7 +20,46 @@ namespace Monolog\Handler;
  */
 interface HandlerInterface
 {
-    public function isHandling($record);
+    /**
+     * Checks whether the handler handles the record.
+     *
+     * @return Boolean
+     */
+    public function isHandling(array $record);
 
-    public function handle($record);
+    /**
+     * Handles a record.
+     *
+     * @param array $record The record to handle
+     * @return Boolean Whether the handler stops the propagation in the stack or not.
+     */
+    public function handle(array $record);
+
+    /**
+     * Adds a processor in the stack.
+     *
+     * @param callable $callback
+     */
+    function pushProcessor($callback);
+
+    /**
+     * Removes the processor on top of the stack and returns it.
+     *
+     * @return callable
+     */
+    function popProcessor();
+
+    /**
+     * Sets the formatter.
+     *
+     * @param FormatterInterface $formatter
+     */
+    function setFormatter(FormatterInterface $formatter);
+
+    /**
+     * Gets the formatter.
+     *
+     * @return FormatterInterface
+     */
+    function getFormatter();
 }