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Operator.php
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Operator.php
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<?php
/**
* Zend Framework (http://framework.zend.com/)
*
* @link http://github.com/zendframework/zf2 for the canonical source repository
* @copyright Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @package Zend_Db
*/
namespace Zend\Db\Sql\Predicate;
/**
* @category Zend
* @package Zend_Db
* @subpackage Sql
*/
class Operator implements PredicateInterface
{
const OPERATOR_EQUAL_TO = '=';
const OP_EQ = '=';
const OPERATOR_NOT_EQUAL_TO = '!=';
const OP_NE = '!=';
const OPERATOR_LESS_THAN = '<';
const OP_LT = '<';
const OPERATOR_LESS_THAN_OR_EQUAL_TO = '<=';
const OP_LTE = '<=';
const OPERATOR_GREATER_THAN = '>';
const OP_GT = '>';
const OPERATOR_GREATER_THAN_OR_EQUAL_TO = '>=';
const OP_GTE = '>=';
protected $allowedTypes = array(
self::TYPE_IDENTIFIER,
self::TYPE_VALUE,
);
protected $left = null;
protected $leftType = self::TYPE_IDENTIFIER;
protected $operator = self::OPERATOR_EQUAL_TO;
protected $right = null;
protected $rightType = self::TYPE_VALUE;
/**
* Constructor
*
* @param int|float|bool|string $left
* @param string $operator
* @param int|float|bool|string $right
* @param string $leftType TYPE_IDENTIFIER or TYPE_VALUE by default TYPE_IDENTIFIER {@see allowedTypes}
* @param string $rightType TYPE_IDENTIFIER or TYPE_VALUE by default TYPE_VALUE {@see allowedTypes}
*/
public function __construct($left = null, $operator = self::OPERATOR_EQUAL_TO, $right = null, $leftType = self::TYPE_IDENTIFIER, $rightType = self::TYPE_VALUE)
{
if ($left !== null) {
$this->setLeft($left);
}
if ($operator !== self::OPERATOR_EQUAL_TO) {
$this->setOperator($operator);
}
if ($right !== null) {
$this->setRight($right);
}
if ($leftType !== self::TYPE_IDENTIFIER) {
$this->setLeftType($leftType);
}
if ($rightType !== self::TYPE_VALUE) {
$this->setRightType($rightType);
}
}
/**
* Set left side of operator
*
* @param int|float|bool|string $left
* @return Operator
*/
public function setLeft($left)
{
$this->left = $left;
return $this;
}
/**
* Get left side of operator
*
* @return int|float|bool|string
*/
public function getLeft()
{
return $this->left;
}
/**
* Set parameter type for left side of operator
*
* @param string $type TYPE_IDENTIFIER or TYPE_VALUE {@see allowedTypes}
* @return Operator
*/
public function setLeftType($type)
{
if (!in_array($type, $this->allowedTypes)) {
throw new \InvalidArgumentException(sprintf(
'Invalid type "%s" provided; must be of type "%s" or "%s"',
$type,
__CLASS__ . '::TYPE_IDENTIFIER',
__CLASS__ . '::TYPE_VALUE'
));
}
$this->leftType = $type;
return $this;
}
/**
* Get parameter type on left side of operator
*
* @return string
*/
public function getLeftType()
{
return $this->leftType;
}
/**
* Set operator string
*
* @param string $operator
* @return Operator
*/
public function setOperator($operator)
{
$this->operator = $operator;
return $this;
}
/**
* Get operator string
*
* @return string
*/
public function getOperator()
{
return $this->operator;
}
/**
* Set right side of operator
*
* @param int|float|bool|string $value
* @return Operator
*/
public function setRight($value)
{
$this->right = $value;
return $this;
}
/**
* Get right side of operator
*
* @return int|float|bool|string
*/
public function getRight()
{
return $this->right;
}
/**
* Set parameter type for right side of operator
*
* @param string $type TYPE_IDENTIFIER or TYPE_VALUE {@see allowedTypes}
* @return Operator
*/
public function setRightType($type)
{
if (!in_array($type, $this->allowedTypes)) {
throw new \InvalidArgumentException(sprintf(
'Invalid type "%s" provided; must be of type "%s" or "%s"',
$type,
__CLASS__ . '::TYPE_IDENTIFIER',
__CLASS__ . '::TYPE_VALUE'
));
}
$this->rightType = $type;
return $this;
}
/**
* Get parameter type on right side of operator
*
* @return string
*/
public function getRightType()
{
return $this->rightType;
}
/**
* Get predicate parts for where statement
*
* @return array
*/
public function getExpressionData()
{
return array(array(
'%s ' . $this->operator . ' %s',
array($this->left, $this->right),
array($this->leftType, $this->rightType)
));
}
}