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<?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\Common\Collections\Expr;
/**
* Comparison of a field with a value by the given operator.
*
* @author Benjamin Eberlei <kontakt@beberlei.de>
* @since 2.3
*/
class Comparison implements Expression
{
const EQ = '=';
const NEQ = '<>';
const LT = '<';
const LTE = '<=';
const GT = '>';
const GTE = '>=';
const IS = '='; // no difference with EQ
const IN = 'IN';
const NIN = 'NIN';
const CONTAINS = 'CONTAINS';
/**
* @var string
*/
private $field;
/**
* @var string
*/
private $op;
/**
* @var Value
*/
private $value;
/**
* @param string $field
* @param string $operator
* @param mixed $value
*/
public function __construct($field, $operator, $value)
{
if ( ! ($value instanceof Value)) {
$value = new Value($value);
}
$this->field = $field;
$this->op = $operator;
$this->value = $value;
}
/**
* @return string
*/
public function getField()
{
return $this->field;
}
/**
* @return Value
*/
public function getValue()
{
return $this->value;
}
/**
* @return string
*/
public function getOperator()
{
return $this->op;
}
/**
* {@inheritDoc}
*/
public function visit(ExpressionVisitor $visitor)
{
return $visitor->walkComparison($this);
}
}
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