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<?php

/**
 * Class TNW_Salesforce_Model_Observer
 */
class TNW_Salesforce_Model_Observer
{
 
    public function syncMappingOrderBefore(Varien_Event_Observer $observer) {
		        /**
		 * Array of Salesforce objects
		 * @var          * Mapping objects
         * @var TNW_Salesforce_Model_Sync_Mapping_Order_Order $_mapping 
         * 
         * Example:
         *     object(TNW_Salesforce_Model_Sync_Mapping_Order_Order)[558]
         *       protected '_type' => string 'Order' (length=5)  // used $_mapping->getType()
         *       protected '_allowedMappingTypes' =>                 // used $_mapping->getAllowedMappingTypes()
         *         array (size=8)
         *           0 => string 'Customer' (length=8)
         *           1 => string 'Billing' (length=7)
         *           2 => string 'Shipping' (length=8)
         *           3 => string 'Custom' (length=6)
         *           4 => string 'Order' (length=5)
         *           5 => string 'Customer Group' (length=14)
         *           6 => string 'Payment' (length=7)
         *           7 => string 'Aitoc' (length=5)
         *       protected '_mappingCollection' => null              // used $_mapping 
		 */
		->getMappingCollection()
         *       protected '_sync' =>                                // used $_mapping->getSync()
         *         object(TNW_Salesforce_Helper_Salesforce_Order)
         *       ...
         */
        $_mapping = $observer->getData('mapping');
 
    		    /**
		 * Array of Salesforce objects
		
         * Entity objects
         * @var stdClassMage_Sales_Model_Order $_entity 
        		 */
		        $_entity = $observer->getData('entity');
 		
        /**
		
         * Array of Salesforce objects
		 Additional entity objects
         * @var stdClassnull $_additional_object 
        		 */
		        $_additional_object = $observer->getData('additionalObject');

		// Your custom code
    }
 
}