73 lines
2.3 KiB
PHP
73 lines
2.3 KiB
PHP
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<?php
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namespace Doctrine\ORM\Query\AST;
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/**
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* AST node for the following path expressions:
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*
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* AssociationPathExpression ::= CollectionValuedPathExpression | SingleValuedAssociationPathExpression
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*
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* SingleValuedPathExpression ::= StateFieldPathExpression | SingleValuedAssociationPathExpression
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*
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* StateFieldPathExpression ::= SimpleStateFieldPathExpression | SimpleStateFieldAssociationPathExpression
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*
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* SingleValuedAssociationPathExpression ::= IdentificationVariable "." {SingleValuedAssociationField "."}* SingleValuedAssociationField
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*
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* CollectionValuedPathExpression ::= IdentificationVariable "." {SingleValuedAssociationField "."}* CollectionValuedAssociationField
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*
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* StateField ::= {EmbeddedClassStateField "."}* SimpleStateField
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*
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* SimpleStateFieldPathExpression ::= IdentificationVariable "." StateField
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*
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* SimpleStateFieldAssociationPathExpression ::= SingleValuedAssociationPathExpression "." StateField
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*
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* @author Roman Borschel <roman@code-factory.org>
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* @since 2.0
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*/
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class PathExpression extends Node
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{
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const TYPE_COLLECTION_VALUED_ASSOCIATION = 1;
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const TYPE_SINGLE_VALUED_ASSOCIATION = 2;
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const TYPE_STATE_FIELD = 4;
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private $_type;
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private $_identificationVariable;
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private $_parts;
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public function __construct($type, $identificationVariable, array $parts)
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{
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$this->_type = $type;
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$this->_identificationVariable = $identificationVariable;
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$this->_parts = $parts;
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}
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public function getIdentificationVariable()
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{
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return $this->_identificationVariable;
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}
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public function getParts()
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{
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return $this->_parts;
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}
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public function getType()
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{
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return $this->_type;
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}
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public function dispatch($walker)
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{
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switch ($this->_type) {
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case self::TYPE_STATE_FIELD:
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return $walker->walkStateFieldPathExpression($this);
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case self::TYPE_SINGLE_VALUED_ASSOCIATION:
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return $walker->walkSingleValuedAssociationPathExpression($this);
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case self::TYPE_COLLECTION_VALUED_ASSOCIATION:
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return $walker->walkCollectionValuedAssociationPathExpression($this);
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default:
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throw new \Exception("Unexhaustive match.");
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}
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}
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}
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