Thanks for the hint Mark - we'll try that as well. Btw we just wanted to let everyone know that we've tried latest trunk code from
http://fisheye.codehaus.org/browse/jackson/ (just pick the binary tarball links in the bottom lefthand corner, install and, go to directory, and do 'ant dist' - then pickup jar from dist directory - we used lgpl version. Then use the code we submitted below. But you will need to patch a few classes in the jackson json code becuase they are referencing classes that don't exist in android - for e.g. XMLGregorianCalendar . Whenever you get a no classdef found error using this framework, go to that line in code, comment it out, do ant clean/ant dist again, remove the library from classpath in eclipse, add it again so that eclipse android plugin will package it again inside your android project - rinse, repeast. You will need to do this in two classes I think, and at 3-4 different places - you won't have to comment out a LOT of code - if this works without any issues, we can try talking to the author so that we can have compatibility with android. So far, we can serialise/deserialise very complex objects to JSON successfully) (http://www.cowtowncoder.com/hatchery/jackson/ - now partof codehaus) For hints on how to use, checkout source, our example below, or http://www.cowtowncoder.com/blog/archives/2008/12/entry_121.html (and related entries) public class Customer implements Serializable{ private int x; private int y; public String s = "Hello"; public List<String> ary = new ArrayList<String>(); public List<String> ary2 = new ArrayList<String>(); public Set<String> set = new HashSet<String>(); public Customer(){ set.add(new String("Yarrr!")); ary.add(new String("Savvy?")); } // not the whole class, add getters and setters } public class User implements java.io.Serializable { private Long userid; private String username; private String password; private String firstname; private String middlename; private String lastname; public String s; private Long chatlistid; private Long latitude; private Long longitude; private Set<Object> events = new HashSet<Object>(0); private Set<Object> addresses = new HashSet<Object>(0); private Set<Object> mails = new HashSet<Object>(0); private Set<Object> groups = new HashSet<Object>(0); private Set<Object> requests = new HashSet<Object>(0); private Set<Object> chatmessages = new HashSet<Object>(0); private Set<Object> broadcasts = new HashSet<Object>(0); private Set<Object> albums = new HashSet<Object>(0); private Set<Object> todos = new HashSet<Object>(0); private Set<Object> subscriptions = new HashSet<Object>(0); private Set<Object> avatars = new HashSet<Object>(0); private Set<Object> notes = new HashSet<Object>(0); private Customer c = new Customer(); // not the whole class, add getters and setters/empty constructor } // some arbitrary place in android - e.g. code executed in response to a DoIT button.... User aTestObj = new User(); ObjectMapper aMapper = new ObjectMapper(); StringWriter aWriter = new StringWriter(); JsonGenerator aGen; try { aGen = new JsonFactory().createJsonGenerator(aWriter); aMapper.writeValue(aGen, aTestObj); aGen.close(); System.out.println(aWriter.toString()); User result = new ObjectMapper().readValue(aWriter.toString(), User.class); System.out.println(result); // doesn't really do anything, just debug this line // to find out if you got back the original object or not - yes I'm lazy } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } On Sat, Jan 10, 2009 at 12:52 PM, Mark Murphy <[email protected]>wrote: > > > > Apache Thrift works on Android, at least in terms of their data > marshalling code. > > http://incubator.apache.org/thrift/ > > -- > Mark Murphy (a Commons Guy) > http://commonsware.com > _The Busy Coder's Guide to Android Development_ Version 2.0 Published! > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
