diff --git a/lib/Doctrine/ORM/Query/QueryExpressionVisitor.php b/lib/Doctrine/ORM/Query/QueryExpressionVisitor.php
new file mode 100644
index 000000000..6f16a3515
--- /dev/null
+++ b/lib/Doctrine/ORM/Query/QueryExpressionVisitor.php
@@ -0,0 +1,168 @@
+<?php
+/*
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * This software consists of voluntary contributions made by many individuals
+ * and is licensed under the MIT license. For more information, see
+ * <http://www.doctrine-project.org>.
+ */
+
+namespace Doctrine\ORM\Query;
+
+use Doctrine\Common\Collections\ArrayCollection;
+
+use Doctrine\Common\Collections\Expr\ExpressionVisitor;
+use Doctrine\Common\Collections\Expr\Comparison;
+use Doctrine\Common\Collections\Expr\CompositeExpression;
+use Doctrine\Common\Collections\Expr\Value;
+
+use Doctrine\ORM\QueryBuilder;
+use Doctrine\ORM\Query\Parameter;
+
+/**
+ * Convert Collection expressions to Query expressions
+ *
+ * @author Kirill chEbba Chebunin <iam@chebba.org>
+ * @since 2.4
+ */
+class QueryExpressionVisitor extends ExpressionVisitor
+{
+    private static $operatorMap = array(
+        Comparison::GT => Expr\Comparison::GT,
+        Comparison::GTE => Expr\Comparison::GTE,
+        Comparison::LT  => Expr\Comparison::LT,
+        Comparison::LTE => Expr\Comparison::LTE
+    );
+
+    private $expr;
+    private $parameters = array();
+
+    /**
+     * Constructor with internal initialization
+     */
+    public function __construct()
+    {
+        $this->expr = new Expr();
+    }
+
+    /**
+     * Get bound parameters.
+     * Filled after {@link dispach()}.
+     *
+     * @return \Doctrine\Common\Collections\Collection
+     */
+    public function getParameters()
+    {
+        return new ArrayCollection($this->parameters);
+    }
+
+    /**
+     * Clear parameters
+     */
+    public function clearParameters()
+    {
+        $this->parameters = array();
+    }
+
+    /**
+     * Convert Criteria expression to Query one based on static map.
+     *
+     * @param string $criteriaOperator
+     *
+     * @return string|null
+     */
+    private static function convertComparisonOperator($criteriaOperator)
+    {
+        return isset(self::$operatorMap[$criteriaOperator]) ? self::$operatorMap[$criteriaOperator] : null;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function walkCompositeExpression(CompositeExpression $expr)
+    {
+        $expressionList = array();
+
+        foreach ($expr->getExpressionList() as $child) {
+            $expressionList[] = $this->dispatch($child);
+        }
+
+        switch($expr->getType()) {
+            case CompositeExpression::TYPE_AND:
+                return new Expr\Andx($expressionList);
+
+            case CompositeExpression::TYPE_OR:
+                return new Expr\Orx($expressionList);
+
+            default:
+                throw new \RuntimeException("Unknown composite " . $expr->getType());
+        }
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function walkComparison(Comparison $comparison)
+    {
+        $parameterName = str_replace('.', '_', $comparison->getField());
+        $parameter = new Parameter($parameterName, $this->walkValue($comparison->getValue()));
+        $placeholder = ':' . $parameterName;
+
+        switch ($comparison->getOperator()) {
+            case Comparison::IN:
+                $this->parameters[] = $parameter;
+                return $this->expr->in($comparison->getField(), $placeholder);
+
+            case Comparison::NIN:
+                $this->parameters[] = $parameter;
+                return $this->expr->notIn($comparison->getField(), $placeholder);
+
+            case Comparison::EQ:
+            case Comparison::IS:
+                if ($this->walkValue($comparison->getValue()) === null) {
+                    return $this->expr->isNull($comparison->getField());
+                }
+                $this->parameters[] = $parameter;
+                return $this->expr->eq($comparison->getField(), $placeholder);
+
+            case Comparison::NEQ:
+                if ($this->walkValue($comparison->getValue()) === null) {
+                    return $this->expr->isNotNull($comparison->getField());
+                }
+                $this->parameters[] = $parameter;
+                return $this->expr->neq($comparison->getField(), $placeholder);
+
+            default:
+                $operator = self::convertComparisonOperator($comparison->getOperator());
+                if ($operator) {
+                    $this->parameters[] = $parameter;
+                    return new Expr\Comparison(
+                        $comparison->getField(),
+                        $operator,
+                        $placeholder
+                    );
+                }
+
+                throw new \RuntimeException("Unknown comparison operator: " . $comparison->getOperator());
+        }
+
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function walkValue(Value $value)
+    {
+        return $value->getValue();
+    }
+}
diff --git a/lib/Doctrine/ORM/QueryBuilder.php b/lib/Doctrine/ORM/QueryBuilder.php
index 51ef27706..f29b7ced4 100644
--- a/lib/Doctrine/ORM/QueryBuilder.php
+++ b/lib/Doctrine/ORM/QueryBuilder.php
@@ -20,8 +20,10 @@
 namespace Doctrine\ORM;
 
 use Doctrine\Common\Collections\ArrayCollection;
+use Doctrine\Common\Collections\Criteria;
 
 use Doctrine\ORM\Query\Expr;
+use Doctrine\ORM\Query\QueryExpressionVisitor;
 
 /**
  * This class is responsible for building DQL query strings via an object oriented
@@ -1018,6 +1020,43 @@ class QueryBuilder
         return $this->add('orderBy', new Expr\OrderBy($sort, $order), true);
     }
 
+    /**
+     * Add criteria to query.
+     * Add where expressions with AND operator.
+     * Add orderings.
+     * Override firstResult and maxResults if they set.
+     *
+     * @param Criteria $criteria
+     * @return QueryBuilder
+     */
+    public function addCriteria(Criteria $criteria)
+    {
+        $visitor = new QueryExpressionVisitor();
+
+        if ($whereExpression = $criteria->getWhereExpression()) {
+            $this->andWhere($visitor->dispatch($whereExpression));
+            foreach ($visitor->getParameters() as $parameter) {
+                $this->parameters->add($parameter);
+            }
+        }
+
+        if ($criteria->getOrderings()) {
+            foreach ($criteria->getOrderings() as $sort => $order) {
+                $this->addOrderBy($sort, $order);
+            }
+        }
+
+        // Overwrite limits only if they was set in criteria
+        if (($firstResult = $criteria->getFirstResult()) !== null) {
+            $this->setFirstResult($firstResult);
+        }
+        if (($maxResults = $criteria->getMaxResults()) !== null) {
+            $this->setMaxResults($maxResults);
+        }
+
+        return $this;
+    }
+
     /**
      * Get a query part by its name.
      *
diff --git a/tests/Doctrine/Tests/ORM/Query/QueryExpressionVisitorTest.php b/tests/Doctrine/Tests/ORM/Query/QueryExpressionVisitorTest.php
new file mode 100644
index 000000000..5eaeb7646
--- /dev/null
+++ b/tests/Doctrine/Tests/ORM/Query/QueryExpressionVisitorTest.php
@@ -0,0 +1,134 @@
+<?php
+/*
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * This software consists of voluntary contributions made by many individuals
+ * and is licensed under the MIT license. For more information, see
+ * <http://www.doctrine-project.org>.
+ */
+
+namespace Doctrine\Tests\ORM\Query;
+
+use Doctrine\Common\Collections\ArrayCollection;
+
+use Doctrine\Common\Collections\Expr\Value;
+use Doctrine\Common\Collections\Expr\Comparison as CriteriaComparison;
+use Doctrine\ORM\Query\Expr\Comparison as QueryComparison;
+use Doctrine\Common\Collections\ExpressionBuilder as CriteriaBuilder;
+use Doctrine\ORM\Query\Expr as QueryBuilder;
+
+use Doctrine\ORM\Query\Parameter;
+use Doctrine\ORM\Query\QueryExpressionVisitor;
+
+/**
+ * Test for QueryExpressionVisitor
+ *
+ * @author Kirill chEbba Chebunin <iam@chebba.org>
+ */
+class QueryExpressionVisitorTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @var QueryExpressionVisitor
+     */
+    private $visitor;
+
+    /**
+     * {@inheritDoc}
+     */
+    protected function setUp()
+    {
+        $this->visitor = new QueryExpressionVisitor();
+    }
+
+    /**
+     * @param CriteriaComparison     $criteriaExpr
+     * @param QueryComparison|string $queryExpr
+     * @param Parameter              $parameter
+     *
+     * @dataProvider comparisonData
+     */
+    public function testWalkComparison(CriteriaComparison $criteriaExpr, $queryExpr, Parameter $parameter = null)
+    {
+        $this->assertEquals($queryExpr, $this->visitor->walkComparison($criteriaExpr));
+        if ($parameter) {
+            $this->assertEquals(new ArrayCollection(array($parameter)), $this->visitor->getParameters());
+        }
+    }
+
+    public function comparisonData()
+    {
+        $cb = new CriteriaBuilder();
+        $qb = new QueryBuilder();
+
+        return array(
+            array($cb->eq('field', 'value'), $qb->eq('field', ':field'), new Parameter('field', 'value')),
+            array($cb->neq('field', 'value'), $qb->neq('field', ':field'), new Parameter('field', 'value')),
+            array($cb->eq('field', null), $qb->isNull('field')),
+            array($cb->neq('field', null), $qb->isNotNull('field')),
+            array($cb->isNull('field'), $qb->isNull('field')),
+
+            array($cb->gt('field', 'value'), $qb->gt('field', ':field'), new Parameter('field', 'value')),
+            array($cb->gte('field', 'value'), $qb->gte('field', ':field'), new Parameter('field', 'value')),
+            array($cb->lt('field', 'value'), $qb->lt('field', ':field'), new Parameter('field', 'value')),
+            array($cb->lte('field', 'value'), $qb->lte('field', ':field'), new Parameter('field', 'value')),
+
+            array($cb->in('field', array('value')), $qb->in('field', ':field'), new Parameter('field', array('value'))),
+            array($cb->notIn('field', array('value')), $qb->notIn('field', ':field'), new Parameter('field', array('value'))),
+
+            // Test parameter conversion
+            array($cb->eq('object.field', 'value'), $qb->eq('object.field', ':object_field'), new Parameter('object_field', 'value')),
+        );
+    }
+
+    public function testWalkAndCompositeExpression()
+    {
+        $cb = new CriteriaBuilder();
+        $expr = $this->visitor->walkCompositeExpression(
+            $cb->andX(
+                $cb->eq("foo", 1),
+                $cb->eq("bar", 1)
+            )
+        );
+
+        $this->assertInstanceOf('Doctrine\ORM\Query\Expr\Andx', $expr);
+        $this->assertCount(2, $expr->getParts());
+    }
+
+    public function testWalkOrCompositeExpression()
+    {
+        $cb = new CriteriaBuilder();
+        $expr = $this->visitor->walkCompositeExpression(
+            $cb->orX(
+                $cb->eq("foo", 1),
+                $cb->eq("bar", 1)
+            )
+        );
+
+        $this->assertInstanceOf('Doctrine\ORM\Query\Expr\Orx', $expr);
+        $this->assertCount(2, $expr->getParts());
+    }
+
+    public function testWalkValue()
+    {
+        $this->assertEquals('value', $this->visitor->walkValue(new Value('value')));
+    }
+
+    public function testClearParameters()
+    {
+        $this->visitor->getParameters()->add(new Parameter('field', 'value'));
+
+        $this->visitor->clearParameters();
+
+        $this->assertCount(0, $this->visitor->getParameters());
+    }
+}
diff --git a/tests/Doctrine/Tests/ORM/QueryBuilderTest.php b/tests/Doctrine/Tests/ORM/QueryBuilderTest.php
index 82ee08ba4..8f52fb8bf 100644
--- a/tests/Doctrine/Tests/ORM/QueryBuilderTest.php
+++ b/tests/Doctrine/Tests/ORM/QueryBuilderTest.php
@@ -19,7 +19,8 @@
 
 namespace Doctrine\Tests\ORM;
 
-use Doctrine\Common\Collections\ArrayCollection;
+use Doctrine\Common\Collections\ArrayCollection,
+    Doctrine\Common\Collections\Criteria;
 
 use Doctrine\ORM\QueryBuilder,
     Doctrine\ORM\Query\Expr,
@@ -38,6 +39,9 @@ require_once __DIR__ . '/../TestInit.php';
  */
 class QueryBuilderTest extends \Doctrine\Tests\OrmTestCase
 {
+    /**
+     * @var \Doctrine\ORM\EntityManager
+     */
     private $_em;
 
     protected function setUp()
@@ -371,6 +375,55 @@ class QueryBuilderTest extends \Doctrine\Tests\OrmTestCase
         $this->assertValidQueryBuilder($qb, 'SELECT u FROM Doctrine\Tests\Models\CMS\CmsUser u ORDER BY u.username ASC, u.username DESC');
     }
 
+    public function testAddCriteriaWhere()
+    {
+        $qb = $this->_em->createQueryBuilder();
+        $criteria = new Criteria();
+        $criteria->where($criteria->expr()->eq('field', 'value'));
+
+        $qb->addCriteria($criteria);
+
+        $this->assertEquals('field = :field', (string) $qb->getDQLPart('where'));
+        $this->assertNotNull($qb->getParameter('field'));
+    }
+
+    public function testAddCriteriaOrder()
+    {
+        $qb = $this->_em->createQueryBuilder();
+        $criteria = new Criteria();
+        $criteria->orderBy(array('field' => Criteria::DESC));
+
+        $qb->addCriteria($criteria);
+
+        $this->assertCount(1, $orderBy = $qb->getDQLPart('orderBy'));
+        $this->assertEquals('field DESC', (string) $orderBy[0]);
+    }
+
+    public function testAddCriteriaLimit()
+    {
+        $qb = $this->_em->createQueryBuilder();
+        $criteria = new Criteria();
+        $criteria->setFirstResult(2);
+        $criteria->setMaxResults(10);
+
+        $qb->addCriteria($criteria);
+
+        $this->assertEquals(2, $qb->getFirstResult());
+        $this->assertEquals(10, $qb->getMaxResults());
+    }
+
+    public function testAddCriteriaUndefinedLimit()
+    {
+        $qb = $this->_em->createQueryBuilder();
+        $qb->setFirstResult(2)->setMaxResults(10);
+        $criteria = new Criteria();
+
+        $qb->addCriteria($criteria);
+
+        $this->assertEquals(2, $qb->getFirstResult());
+        $this->assertEquals(10, $qb->getMaxResults());
+    }
+
     public function testGetQuery()
     {
         $qb = $this->_em->createQueryBuilder()