--- /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\AST;
+
+/**
+ * AssociationPathExpression ::= CollectionValuedPathExpression | SingleValuedAssociationPathExpression
+ * SingleValuedPathExpression ::= StateFieldPathExpression | SingleValuedAssociationPathExpression
+ * StateFieldPathExpression ::= SimpleStateFieldPathExpression | SimpleStateFieldAssociationPathExpression
+ * SingleValuedAssociationPathExpression ::= IdentificationVariable "." SingleValuedAssociationField
+ * CollectionValuedPathExpression ::= IdentificationVariable "." CollectionValuedAssociationField
+ * StateField ::= {EmbeddedClassStateField "."}* SimpleStateField
+ * SimpleStateFieldPathExpression ::= IdentificationVariable "." StateField
+ *
+ * @since 2.0
+ * @author Guilherme Blanco <guilhermeblanco@hotmail.com>
+ * @author Jonathan Wage <jonwage@gmail.com>
+ * @author Roman Borschel <roman@code-factory.org>
+ */
+class PathExpression extends Node
+{
+ const TYPE_COLLECTION_VALUED_ASSOCIATION = 2;
+ const TYPE_SINGLE_VALUED_ASSOCIATION = 4;
+ const TYPE_STATE_FIELD = 8;
+
+ public $type;
+ public $expectedType;
+ public $identificationVariable;
+ public $field;
+
+ public function __construct($expectedType, $identificationVariable, $field = null)
+ {
+ $this->expectedType = $expectedType;
+ $this->identificationVariable = $identificationVariable;
+ $this->field = $field;
+ }
+
+ public function dispatch($walker)
+ {
+ return $walker->walkPathExpression($this);
+ }
+}