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+Expression Builder
+==================
+
+The Expression Builder is a convenient fluent interface for
+building expressions to be used with the ``Doctrine\Common\Collections\Criteria``
+class:
+
+.. code-block:: php
+    $expressionBuilder = Criteria::expr();
+
+    $criteria = new Criteria();
+    $criteria->where($expressionBuilder->eq('name', 'jwage'));
+    $criteria->orWhere($expressionBuilder->eq('name', 'romanb'));
+
+    $collection->matching($criteria);
+
+The ``ExpressionBuilder`` has the following API:
+
+andX
+----
+
+.. code-block:: php
+    $expressionBuilder = Criteria::expr();
+
+    $expression = $expressionBuilder->andX(
+        $expressionBuilder->eq('foo', 1),
+        $expressionBuilder->eq('bar', 1)
+    );
+
+    $collection->matching(new Criteria($expression));
+
+orX
+---
+
+.. code-block:: php
+    $expressionBuilder = Criteria::expr();
+
+    $expression = $expressionBuilder->orX(
+        $expressionBuilder->eq('foo', 1),
+        $expressionBuilder->eq('bar', 1)
+    );
+
+    $collection->matching(new Criteria($expression));
+
+eq
+---
+
+.. code-block:: php
+    $expressionBuilder = Criteria::expr();
+
+    $expression = $expressionBuilder->eq('foo', 1);
+
+    $collection->matching(new Criteria($expression));
+
+gt
+---
+
+.. code-block:: php
+    $expressionBuilder = Criteria::expr();
+
+    $expression = $expressionBuilder->gt('foo', 1);
+
+    $collection->matching(new Criteria($expression));
+
+lt
+---
+
+.. code-block:: php
+    $expressionBuilder = Criteria::expr();
+
+    $expression = $expressionBuilder->lt('foo', 1);
+
+    $collection->matching(new Criteria($expression));
+
+gte
+---
+
+.. code-block:: php
+    $expressionBuilder = Criteria::expr();
+
+    $expression = $expressionBuilder->gte('foo', 1);
+
+    $collection->matching(new Criteria($expression));
+
+lte
+---
+
+.. code-block:: php
+    $expressionBuilder = Criteria::expr();
+
+    $expression = $expressionBuilder->lte('foo', 1);
+
+    $collection->matching(new Criteria($expression));
+
+neq
+---
+
+.. code-block:: php
+    $expressionBuilder = Criteria::expr();
+
+    $expression = $expressionBuilder->neq('foo', 1);
+
+    $collection->matching(new Criteria($expression));
+
+isNull
+------
+
+.. code-block:: php
+    $expressionBuilder = Criteria::expr();
+
+    $expression = $expressionBuilder->isNull('foo');
+
+    $collection->matching(new Criteria($expression));
+
+in
+---
+
+.. code-block:: php
+    $expressionBuilder = Criteria::expr();
+
+    $expression = $expressionBuilder->in('foo', ['value1', 'value2']);
+
+    $collection->matching(new Criteria($expression));
+
+notIn
+-----
+
+.. code-block:: php
+    $expressionBuilder = Criteria::expr();
+
+    $expression = $expressionBuilder->notIn('foo', ['value1', 'value2']);
+
+    $collection->matching(new Criteria($expression));
+
+contains
+--------
+
+.. code-block:: php
+    $expressionBuilder = Criteria::expr();
+
+    $expression = $expressionBuilder->contains('foo', 'value1');
+
+    $collection->matching(new Criteria($expression));
+
+memberOf
+--------
+
+.. code-block:: php
+    $expressionBuilder = Criteria::expr();
+
+    $expression = $expressionBuilder->memberOf('foo', ['value1', 'value2']);
+
+    $collection->matching(new Criteria($expression));
+
+startsWith
+----------
+
+.. code-block:: php
+    $expressionBuilder = Criteria::expr();
+
+    $expression = $expressionBuilder->startsWith('foo', 'hello');
+
+    $collection->matching(new Criteria($expression));
+
+endsWith
+--------
+
+.. code-block:: php
+    $expressionBuilder = Criteria::expr();
+
+    $expression = $expressionBuilder->endsWith('foo', 'world');
+
+    $collection->matching(new Criteria($expression));