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<?php |
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namespace POData\UriProcessor\QueryProcessor\ExpressionParser; |
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use POData\Common\ODataConstants; |
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use POData\Common\ODataException; |
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/** |
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* Class ExpressionToken. |
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*/ |
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class ExpressionToken |
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{ |
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/** |
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* @var ExpressionTokenId |
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*/ |
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protected $Id; |
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/** |
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* @var string |
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*/ |
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public $Text; |
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/** |
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* @var int |
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*/ |
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public $Position; |
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/** |
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* Checks whether this token is a comparison operator. |
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* |
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* @return bool True if this token represent a comparison operator |
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* False otherwise |
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*/ |
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public function isComparisonOperator() |
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{ |
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return |
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$this->Id == ExpressionTokenId::IDENTIFIER() && |
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is_string($this->Text) && |
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(strcmp($this->Text, ODataConstants::KEYWORD_EQUAL) == 0 || |
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strcmp($this->Text, ODataConstants::KEYWORD_NOT_EQUAL) == 0 || |
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strcmp($this->Text, ODataConstants::KEYWORD_LESSTHAN) == 0 || |
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strcmp($this->Text, ODataConstants::KEYWORD_GREATERTHAN) == 0 || |
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strcmp($this->Text, ODataConstants::KEYWORD_LESSTHAN_OR_EQUAL) == 0 || |
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strcmp($this->Text, ODataConstants::KEYWORD_GREATERTHAN_OR_EQUAL) == 0); |
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} |
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/** |
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* Checks whether this token is an equality operator. |
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* |
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* @return bool True if this token represent a equality operator |
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* False otherwise |
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*/ |
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public function isEqualityOperator() |
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{ |
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return |
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$this->Id == ExpressionTokenId::IDENTIFIER() && |
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is_string($this->Text) && |
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(strcmp($this->Text, ODataConstants::KEYWORD_EQUAL) === 0 || |
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strcmp($this->Text, ODataConstants::KEYWORD_NOT_EQUAL) === 0); |
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} |
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/** |
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* Checks whether this token is a valid token for a key value. |
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* |
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* @return bool True if this token represent valid key value |
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* False otherwise |
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*/ |
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public function isKeyValueToken() |
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{ |
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return |
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$this->Id == ExpressionTokenId::BINARY_LITERAL() || |
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$this->Id == ExpressionTokenId::BOOLEAN_LITERAL() || |
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$this->Id == ExpressionTokenId::DATETIME_LITERAL() || |
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$this->Id == ExpressionTokenId::GUID_LITERAL() || |
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$this->Id == ExpressionTokenId::STRING_LITERAL() || |
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ExpressionLexer::isNumeric($this->Id); |
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} |
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/** |
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* Gets the current identifier text. |
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* |
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* @throws ODataException |
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* @return string |
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*/ |
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public function getIdentifier() |
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{ |
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if ($this->Id != ExpressionTokenId::IDENTIFIER()) { |
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throw ODataException::createSyntaxError( |
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'Identifier expected at position ' . $this->Position |
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); |
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} |
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return $this->Text; |
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} |
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/** |
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* Checks that this token has the specified identifier. |
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* |
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* @param ExpressionTokenId $id Identifier to check |
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* |
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* @return bool true if this is an identifier with the specified text |
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*/ |
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public function identifierIs($id) |
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{ |
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return $this->Id == ExpressionTokenId::IDENTIFIER() |
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&& strcmp($this->Text, $id) == 0; |
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} |
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/** |
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* @return ExpressionTokenId |
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*/ |
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public function getId() |
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{ |
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return $this->Id; |
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} |
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/** |
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* @param ExpressionTokenId $Id |
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*/ |
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public function setId(ExpressionTokenId $Id) |
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{ |
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$this->Id = $Id; |
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} |
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} |
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Algo-Web /
POData
