public function __construct($variableNameA, $variableNameB, ezcWorkflowCondition $condition) { if (!$condition instanceof ezcWorkflowConditionComparison) { throw new ezcBaseValueException('condition', $condition, 'ezcWorkflowConditionComparison'); } $this->variableNameA = $variableNameA; $this->variableNameB = $variableNameB; $this->condition = $condition; }