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diff --git a/lib/pq/Mapper/Mapper.php b/lib/pq/Mapper/Mapper.php
new file mode 100644
index 0000000..725a50c
--- /dev/null
+++ b/lib/pq/Mapper/Mapper.php
@@ -0,0 +1,83 @@
+<?php
+
+namespace pq\Mapper;
+
+use UnexpectedValueException;
+
+class Mapper
+{
+	private $maps;
+	private $refp;
+
+	/**
+	 * @param \pq\Mapper\MapInterface $map
+	 * @return \pq\Mapper\Mapper
+	 */
+	function register(MapInterface $map) {
+		$this->maps[$map->getClass()] = $map;
+		return $this;
+	}
+
+	function getReflector($class, $prop) {
+		if (is_object($class)) {
+			$class = get_class($class);
+		}
+		$hash = "$class::$prop";
+		if (!isset($this->refp[$hash])) {
+			$this->refp[$hash] = new \ReflectionProperty($class, $prop);
+			$this->refp[$hash]->setAccessible(true);
+		}
+		return $this->refp[$hash];
+	}
+
+	/**
+	 * @param string $class
+	 * @return \pq\Mapper\MapInterface
+	 * @throws UnexpectedValueException
+	 */
+	function mapOf($class) {
+		if (is_object($class)) {
+			$class = get_class($class);
+		}
+		if (!isset($this->maps[$class])) {
+			if (!is_callable([$class, "mapAs"])) {
+				throw new UnexpectedValueException("Not a mapped class: '$class'");
+			}
+			$this->register($class::mapAs($this));
+		}
+		return $this->maps[$class];
+	}
+
+	/**
+	 * @param string $class
+	 * @return \pq\Mapper\Storage
+	 */
+	function createStorage($class) {
+		return new Storage($this, $class);
+	}
+
+	/**
+	 * @param string $property
+	 * @param string $field
+	 * @return \pq\Mapper\Property\Field
+	 */
+	function mapField($property, $field = null) {
+		return new Property\Field($this, $property, $field);
+	}
+
+	/**
+	 * @param string $property
+	 * @return \pq\Mapper\Property\All
+	 */
+	function mapAll($property) {
+		return new Property\All($this, $property);
+	}
+
+	/**
+	 * @param string $property
+	 * @return \pq\Mapper\Property\Ref
+	 */
+	function mapRef($property) {
+		return new Property\Ref($this, $property);
+	}
+}