You can serialize it into JSON. The Sudoku sample demonstrates doing that: http://wave-samples-gallery.appspot.com/about_app?app_id=3
There are several related gadgets: http://wave-samples-gallery.appspot.com/about_app?app_id=34038 http://wave-samples-gallery.appspot.com/about_app?app_id=64007 - pamela On Wed, Dec 9, 2009 at 5:36 AM, Jiang, Guoqian, Ph.D. <jiang.guoq...@mayo.edu> wrote: > Hello, > > I am new to Google Wave API and would like to ask a question about Google > Wave persistence layer, > > My use case is that I want to reprensent a tree structure in a google wave > gadget and a group will work collaboratively on curating the tree structure > e.g. editing a node, adding a sub node or deleting a node. > > Assuming the tree structure is based on a json object, my question is > whether there is a persistence layer API to store and restore a json object, > > From the tutorial, I can see a submitDelta() which is used to save a > key-value pair representing an update. Is it possible that the value be a > json object? > >>Updates the state object with delta, which is a map of key-value pairs >> representing an update. For example, >wave.getState().submitDelta({'count': >> 5}) sets the value of the count key to 5. > > By the way, do you know whether there is a wave gadget already developed for > this use case? > > Thanks, > > -Guoqian > > -- > > You received this message because you are subscribed to the Google Groups > "Google Wave API" group. > To post to this group, send email to google-wave-...@googlegroups.com. > To unsubscribe from this group, send email to > google-wave-api+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/google-wave-api?hl=en. > -- You received this message because you are subscribed to the Google Groups "Google Wave API" group. To post to this group, send email to google-wave-...@googlegroups.com. To unsubscribe from this group, send email to google-wave-api+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-wave-api?hl=en.