Comparison

class Comparison implements Expression

Comparison of a field with a value by the given operator.

Constants

Methods

Details

Source code

<?php
/*
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 * 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);
    }
}