Example of using JSON serialization to pass complex objects to @future handlers in Apex

AddressFuture

/**
 * Example of using JSON serialization to pass complex objects to @future handlers in Apex
 * $author: qwall@salesforce.com
 */
public with sharing class AddressFuture {
  
	public AddressFuture () {
		
		List<String> addresses = new List<String>();
		AddressHelper ah1 = new AddressHelper('1 here st', 'San Francisco', 'CA', '94105');
		AddressHelper ah2 = new AddressHelper('2 here st', 'San Francisco', 'CA', '94105');
		AddressHelper ah3 = new AddressHelper('3 here st', 'San Francisco', 'CA', '94105');
		
		//serialize my objects
		addresses.add(JSON.serialize(ah3));
		addresses.add(JSON.serialize(ah2));
		addresses.add(JSON.serialize(ah3));
	
		doFutureCall(addresses);
		
	}

	@future
    static void doFutureCall(List<String> addressesSer) {
    
    	AddressHelper currAddress = null;
    	
       for (String ser : addressesSer)
       {
       
       	 currAddress = (AddressHelper) JSON.deserialize(ser, AddressHelper.class);
       	 System.debug('Deserialized in future:'+currAddress.street);
       }
    }
}

AddressHelper

/**
 * Sample encapsulated class
 * $author: qwall@salesforce.com
 */

public with sharing class AddressHelper {
  
	public String street {set; get;}
	public String city {set; get;}
	public String state {set; get;}
	public String zip {set; get;}
    
    
    public AddressHelper(String s, String c, String st, String z) {
    	street = s;
    	city = c;
    	state = st;
    	zip = z;
    	
    }

}