--- /dev/null
+<?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\Expr;
+
+/**
+ * Expression class for DQL from
+ *
+ *
+ * @link www.doctrine-project.org
+ * @since 2.0
+ * @author Guilherme Blanco <guilhermeblanco@hotmail.com>
+ * @author Jonathan Wage <jonwage@gmail.com>
+ * @author Roman Borschel <roman@code-factory.org>
+ */
+class Join
+{
+ const INNER_JOIN = 'INNER';
+ const LEFT_JOIN = 'LEFT';
+
+ const ON = 'ON';
+ const WITH = 'WITH';
+
+ /**
+ * @var string
+ */
+ protected $joinType;
+
+ /**
+ * @var string
+ */
+ protected $join;
+
+ /**
+ * @var string
+ */
+ protected $alias;
+
+ /**
+ * @var string
+ */
+ protected $conditionType;
+
+ /**
+ * @var string
+ */
+ protected $condition;
+
+ /**
+ * @var string
+ */
+ protected $indexBy;
+
+ /**
+ * @param string $joinType The condition type constant. Either INNER_JOIN or LEFT_JOIN.
+ * @param string $join The relationship to join
+ * @param string $alias The alias of the join
+ * @param string $conditionType The condition type constant. Either ON or WITH.
+ * @param string $condition The condition for the join
+ * @param string $indexBy The index for the join
+ */
+ public function __construct($joinType, $join, $alias = null, $conditionType = null, $condition = null, $indexBy = null)
+ {
+ $this->joinType = $joinType;
+ $this->join = $join;
+ $this->alias = $alias;
+ $this->conditionType = $conditionType;
+ $this->condition = $condition;
+ $this->indexBy = $indexBy;
+ }
+
+ /**
+ * @return string
+ */
+ public function getJoinType()
+ {
+ return $this->joinType;
+ }
+
+ /**
+ * @return string
+ */
+ public function getJoin()
+ {
+ return $this->join;
+ }
+
+ /**
+ * @return string
+ */
+ public function getAlias()
+ {
+ return $this->alias;
+ }
+
+ /**
+ * @return string
+ */
+ public function getConditionType()
+ {
+ return $this->conditionType;
+ }
+
+ /**
+ * @return string
+ */
+ public function getCondition()
+ {
+ return $this->condition;
+ }
+
+ /**
+ * @return string
+ */
+ public function getIndexBy()
+ {
+ return $this->indexBy;
+ }
+
+
+ /**
+ * @return string
+ */
+ public function __toString()
+ {
+ return strtoupper($this->joinType) . ' JOIN ' . $this->join
+ . ($this->alias ? ' ' . $this->alias : '')
+ . ($this->condition ? ' ' . strtoupper($this->conditionType) . ' ' . $this->condition : '')
+ . ($this->indexBy ? ' INDEX BY ' . $this->indexBy : '');
+ }
+}