[appengine-java] Re: android app and google app engine
Is there a reason why you don't use the datastore? On Apr 21, 5:56 am, dass wrote: > I have developed an android app which decodes a QR code .I need to > send this decoded information to a sever which has a Mysql database. > Here I need to check in database that the information is present or > not. I dont have a sever whose url I can specify in myapp. Plz help > by suggesting on how do I deploy the Mysql db on google app engine and > use it in my android app. -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to google-appengine-java@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Integration with OpenJPA
Hi, I'm trying to get GAE to integrate with OpenJPA (instead of the built- in DataNucleus) for various reasons. From the Setting Up JPA section on the Using JPA with GAE page [1], it sounded like this might be doable by replacing the DataNucleus binaries with the OpenJPA binaries in the war/WEB-INF/lib directory and doing the necessary enhancement steps (also required by OpenJPA). But, I have not had any luck. The DataNucleus version in GAE seems to be limited to JPA 1.0 functionality, although I found some references to the JPA 2.0 APIs... So, I have removed all 3 jars related to DataNucleus along with the Geronimo spec jars, and inserted the openjpa-all jar. I get a little further, but now I am hitting classloader issues. I'm working with the simple Guestbook sample. I also just noticed that Hibernate is not compatible with GAE either, so at least we're in good company... :-) Are there any plans to open up GAE to alternate JPA providers? Is there anybody interested in the GAE development community to help with this endeavor? I like the GAE development and deployment environment, but I would like to use OpenJPA instead of DataNucleus. (I can provide more details (stack traces, test projects, etc) if I get some indication that there is interest in this exercise.) Thanks for any information, Kevin Apache OpenJPA PMC [1] http://code.google.com/appengine/docs/java/datastore/usingjpa.html#Setting_Up_JPA -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
Re: [appengine-java] URLFetch HTTPRequest.fetch throws NPE
This looks like it might be http://code.google.com/p/googleappengine/issues/detail?id=2412 On Wed, Dec 9, 2009 at 4:03 AM, Satheesh Babu Vattekkat wrote: > Hi, > > I've a code like this to a remote web service (under https) that > expects a form data post. Output is XML. > > URLFetchService f = URLFetchServiceFactory.getURLFetchService(); > HTTPRequest req = new HTTPRequest(url, HTTPMethod.POST); > req.setPayload(data.toString().getBytes()); > HTTPResponse resp = f.fetch(req); > > It fails with an NPE on f.fetch() above. > java.lang.NullPointerException >atcom.google.appengine.api.urlfetch.URLFetchServiceImpl.fetch > (URLFetchServiceImpl.java:31 ) > > Any thoughts on what could be wrong here? > > I access this service regularly through python and it works. > > -- > > You received this message because you are subscribed to the Google Groups > "Google App Engine for Java" group. > To post to this group, send email to > google-appengine-j...@googlegroups.com. > To unsubscribe from this group, send email to > google-appengine-java+unsubscr...@googlegroups.com > . > For more options, visit this group at > http://groups.google.com/group/google-appengine-java?hl=en. > > > -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] remote_api get and put
Dear All,
I'm trying to use remote_api to query and update an entity on
datastore.
I read the following article and successfully query the data.
http://code.google.com/intl/en/appengine/docs/java/tools/remoteapi.html
But the poor thing is, after the query, I would like to update the
entity. But it didn't work without any error message.
Here is part of my code. Would you plz help to check it?? Thanks!!
===
public class RemoteApiExample {
public static void main(String[] args) throws IOException {
String username = System.console().readLine("username: ");
String password =
new String(System.console().readPassword("password: "));
RemoteApiOptions options = new RemoteApiOptions()
.server("9x9tvqa.appspot.com", 443)
.credentials(username, password);
RemoteApiInstaller installer = new RemoteApiInstaller();
installer.install(options);
try {
DatastoreService ds =
DatastoreServiceFactory.getDatastoreService();
//System.out.println("Key of new entity is " +
//ds.put(new Entity("Hello Remote API!")));
// My code is beginning here
Key k0 = KeyFactory.createKey("MsoChannel", 7);
Entity e0;
e0 = ds.get(k0);
String langCode = (String) e0.getProperty("langCode");
System.out.println("Key=7, langCode=" + langCode); // <--
this works, langCode="en"
System.out.println("Now we are going to modify it to be
langCode=\"zh\"...");
e0.setProperty("langCode", "zh");
ds.put(e0);
} catch (EntityNotFoundException e) {
System.out.println("Exception caught!");
}
finally {
installer.uninstall();
}
}
}
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[appengine-java] Problems pointing my GoDaddy domain to App Engine (no other posts have been able to help!)
So I have a domain hosted on GoDaddy.com and I just set up Google App Engine and Google Apps. I registered my new domain with Google Apps so that I can see it in my dashboard and I believe I did what I needed to do to verify I'm the owner of the domain. I added the CNAME entry in GoDaddy for www to point to ghs.google.com and removed all others. I set up the MX records I saw in another post so at least my email is going where I expect it to. But, my new URL is not going to my google app engine application for some reason. Do I need to change the Name Servers from GoDaddy name servers to Google name servers? Do I need A(Host) entries? I'm confused. Please help! -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
