Re: [appengine-java] Unable to deploy app to GAE
I'm always go the same error when I try to upload app via google eclipse plugin. I have to reinstall jre. It will temporarily fix this issue. But, it will be came in future -- 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] OpenID Development server
Hello, I'm testing OpenID (SDK 1.3.7). My env is: Eclipse + GAE Plugin. Question: is OpenID supported by local development server? I have a protected area. I force users to login with: security-constraint web-resource-collection url-pattern/protected/*/url-pattern /web-resource-collection auth-constraint role-name*/role-name /auth-constraint /security-constraint When I try to access the protected area from production I get correctly redirect to: http://MYAPP.appspot.com/_ah/login_required?continue=http://MYAPP.appspot.com/protected/ But on local development server I get:http://localhost:/_ah/login?continue=http://localhost:/protected/ Why? fabrizio -- 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] Remove properties from existing data
Hello, I've been looking for a way to remove unused properties from existing data for a while but could not find the right information yet. Everyone is talking about what should not be done, but no one is giving any ideas how to remove. So I can't set NULL, since it's a value as well and gets stored. So how to get rid of unused properties then? On python there is delattr to remove a property completely. On Java there is ... ? Thanks -- 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] Re: Web Hook - Asynchronous - Where is my response?
Sorry I don't quite understand your answer, what do you mean by DataStore Operation? -- 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] Re: Many to many relation ship
Hi Hadf, This is how I did it. Basically in RDBMS, it has a running thread that does the cascaded update/delete and so there is an option for you to tell the RDBMS to do that automatically for you or not. In GDataStore, it doesn't have such automation. Instead, you have to retrieve the associated Key, and delete the associated object. You may think this is manual process by yourself but it is considerably very quick since Key is all cached in Google, and if you try to find the Key (even at root Entity Group), it will return you the associated Object in lightning short period of time, and then you can perform Update or Delete yourself. Having such cascade update/delete automation is good except that you don't have much control where manual gives you full power to control the flow such as retrieving external information from web services just right before you do the cascade update. Syntax wise, you can use the following if you are using Java: Employee e = pm.getObjectById(Employee.class, k); k is the Key object. Assuming you put this key onto web, make sure you use keyToString and stringToKey methods to encode/decode the key before you store/retrieve the Key. hope this helps, Andy -- 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] Re: Web Hook - Asynchronous - Where is my response?
There is no public API for checking the status of tasks. A task is really nothing more than a normal http request which is monitored by GAE to retry it if it fails. The real brains is in the task queue which is simply a queue of URL's that app engine will fire off at a given rate and retry failed requests. The only public method to check tasks (http requests) in this queue is the console webpage. Its up to you to monitor your tasks yourself by storing some kind of status data in memcache or the datastore. On 7 Oct 2010, at 20:13, Andy wrote: Sorry I don't quite understand your answer, what do you mean by DataStore Operation? -- 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 . -- 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] Re: Web Hook - Asynchronous - Where is my response?
gotcha, thank you. On Thu, Oct 7, 2010 at 10:37 AM, John Patterson jdpatter...@gmail.comwrote: There is no public API for checking the status of tasks. A task is really nothing more than a normal http request which is monitored by GAE to retry it if it fails. The real brains is in the task queue which is simply a queue of URL's that app engine will fire off at a given rate and retry failed requests. The only public method to check tasks (http requests) in this queue is the console webpage. Its up to you to monitor your tasks yourself by storing some kind of status data in memcache or the datastore. On 7 Oct 2010, at 20:13, Andy wrote: Sorry I don't quite understand your answer, what do you mean by DataStore Operation? -- 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.comgoogle-appengine-java%2bunsubscr...@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.comgoogle-appengine-java%2bunsubscr...@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] Re: Spring MVC on GAE: Slow Load Time
Vladimir, I am using the cron job solutions... i know that it´s not the best solutions but it´s working perfectly. I don´t recommend you to use spring in GAE. The spring´s load time is not acceptable in GAE. I am using VRaptor + Objectify and the startup time is not a problem for me. Sorry about some english mistakes. Marcelo Madeira Brazil On Oct 6, 4:44 pm, Vladimir odess...@gmail.com wrote: Hello All! I recently deployed a Spring MVC application to google app engine, and the intial load time is about 7sec. Once the application is loaded, the app is quite responsive. But, if the app is idle for more than 1 minute (there isn't ANY traffic to it) the app needs to be again reloaded by GAE, which, takes about 7sec as well. For a PRD-level application this is unacceptable. (The app is empty -- I'm not even using JPA, Sitemesh, Spring Security, etc yet. It just loads a jsp page with some text.) The only best practice to fix the 'load time' I've seen so far is to set up a cron job that hits the url every minute, therefore keeping the app 'loaded'. Obviously this is a terrible solution. So here are the questions: Are there any best practices for Spring on GAE in terms of responsiveness? Since google and spring are working on developing better integration between the two of them, has there been any news/progress on this problem? I can't find anything concrete, that's why I'm asking it here Thanks! Vladimir -- 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] Font Rendering possible..? Maybe via Batik?
Hi, the complete rendering pipeline in GAE for Java is on the blacklist, cannot be used. Is there a way to render Fonts and simple Shapes nonetheless? Maybe via a complete non-native implementation? Maybe from Apache Harmony? Is the Apache Batik Project compatible with Google Appengine? Could it be used to do simple rendering (output PNG or SVG)? Did somebody ever try this? Thanks, Richard -- 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] Google App Engine MUD
Hi MLS, Sounds like an interesting project! On Sat, Oct 2, 2010 at 4:02 AM, MLS mlsjunkm...@gmail.com wrote: My friend and I are looking to rewrite an old BBS MUD. The game is a few thousand rooms and purely text based with commands issued by individual players and the game responding and updating players stats based on the results of their commands. I do not have a programming background, and I'm wondering about the best way to approach writing it for GAE. Attempting to translate the game to objects, I have the following layout: World object holds all of the zone objects, zone objects hold rooms, room objects hold players, player objects hold inventory objects, spellbook objects, and attributes. Then write appropriate methods for manipulating the objects appropriately and returning the results. If by 'A holds B', you mean 'B has a reference to A', then yes, this sounds sensible. You only want to use parent/child relationships when you need to be able to update multiple entities in a single transaction. If you need this support, consider reducing the scope - eg, each zone could have an entity group containing all its rooms, and each player can form an entity group holding all their items. I have a few questions though: 1. Is this a technically correct way of approaching the problem? If not, what would be better? (keep in mind, I am not a professional programmer by any means. I can find my way if I have something already written to make changes, but I've never written anything from scratch before). Would I populate all these objects, then write world to the db and retrieve it for each player action? Yes, that's right. You wouldn't generally write the whole world at once, though - just the modified bits! I have no idea how servlets work to store state, or really how they work in general really. App servers are expected to be stateless on App Engine. All your state should be stored in the datastore or memcache. Basically, how would I be storing and retrieving stored player statistics which are constantly changing many times a second as players play the game. This is another reason to limit the size of your transaction (entity) groups. A single entity group can be updated at most a few times a second. 2. A key issue is the ability to push updates to players in real time, and track individuals who are connected. For example, I would like the ability to be able to call something like room[someroomnum].sendtoall(Some message here); to push a message to all players in that room, or player[someplayernum].send(some message here); to send replies to players directly. I understand this is a complex issue with the stateless http protocol, but I have read some about the upcoming channel API which sounds like it may offer this ability but I don't know enough to be certain. Yes, the channels API is exactly what you need for this. Overall I'm looking to avoid devoting countless hours to this project if it is going to be beyond my abilities to complete successfully. Have you considered language? Your mention of servlets implies you're considering using Java. If you're already familiar with Java, by all means use it, but if you're new to both Java and Python, I'd highly recommend starting with Python - you'll find a lot less boilerplate to deal with. Of course, I'm partisan. ;) -Nick Johnson Thanks very much for your time and consideration, MLS -- 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.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- Nick Johnson, Developer Programs Engineer, App Engine Google Ireland Ltd. :: Registered in Dublin, Ireland, Registration Number: 368047 Google Ireland Ltd. :: Registered in Dublin, Ireland, Registration Number: 368047 -- 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] Re: Spring MVC on GAE: Slow Load Time
another non-Spring but fast-loading choice: slim3 -- Roberto On Oct 7, 8:41 am, Marcelo Madeira celodem...@gmail.com wrote: Vladimir, I am using the cron job solutions... i know that it´s not the best solutions but it´s working perfectly. I don´t recommend you to use spring in GAE. The spring´s load time is not acceptable in GAE. I am using VRaptor + Objectify and the startup time is not a problem for me. Sorry about some english mistakes. Marcelo Madeira Brazil On Oct 6, 4:44 pm, Vladimir odess...@gmail.com wrote: Hello All! I recently deployed a Spring MVC application to google app engine, and the intial load time is about 7sec. Once the application is loaded, the app is quite responsive. But, if the app is idle for more than 1 minute (there isn't ANY traffic to it) the app needs to be again reloaded by GAE, which, takes about 7sec as well. For a PRD-level application this is unacceptable. (The app is empty -- I'm not even using JPA, Sitemesh, Spring Security, etc yet. It just loads a jsp page with some text.) The only best practice to fix the 'load time' I've seen so far is to set up a cron job that hits the url every minute, therefore keeping the app 'loaded'. Obviously this is a terrible solution. So here are the questions: Are there any best practices for Spring on GAE in terms of responsiveness? Since google and spring are working on developing better integration between the two of them, has there been any news/progress on this problem? I can't find anything concrete, that's why I'm asking it here Thanks! Vladimir -- 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] Re: Remove properties from existing data
Hello, You have to go down to low-level datastore api to do that: see Entity.removeProperty() See http://code.google.com/appengine/docs/java/javadoc/com/google/appengine/api/datastore/Entity.html didier On Oct 7, 2:06 pm, arny arny...@googlemail.com wrote: Hello, I've been looking for a way to remove unused properties from existing data for a while but could not find the right information yet. Everyone is talking about what should not be done, but no one is giving any ideas how to remove. So I can't set NULL, since it's a value as well and gets stored. So how to get rid of unused properties then? On python there is delattr to remove a property completely. On Java there is ... ? Thanks -- 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] Re: Remove properties from existing data
An easy way to iterate over all your entities is with the Mapper API: http://googleappengine.blogspot.com/2010/07/introducing-mapper-api.html -- Ikai Lan Developer Programs Engineer, Google App Engine Blogger: http://googleappengine.blogspot.com Reddit: http://www.reddit.com/r/appengine Twitter: http://twitter.com/app_engine On Thu, Oct 7, 2010 at 10:11 AM, Didier Durand durand.did...@gmail.comwrote: Hello, You have to go down to low-level datastore api to do that: see Entity.removeProperty() See http://code.google.com/appengine/docs/java/javadoc/com/google/appengine/api/datastore/Entity.html didier On Oct 7, 2:06 pm, arny arny...@googlemail.com wrote: Hello, I've been looking for a way to remove unused properties from existing data for a while but could not find the right information yet. Everyone is talking about what should not be done, but no one is giving any ideas how to remove. So I can't set NULL, since it's a value as well and gets stored. So how to get rid of unused properties then? On python there is delattr to remove a property completely. On Java there is ... ? Thanks -- 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.comgoogle-appengine-java%2bunsubscr...@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.
Re: [appengine-java] Font Rendering possible..? Maybe via Batik?
Have you looked into the Google Font API? http://code.google.com/apis/webfonts/ This solution is more inline with HTML5. -- Ikai Lan Developer Programs Engineer, Google App Engine Blogger: http://googleappengine.blogspot.com Reddit: http://www.reddit.com/r/appengine Twitter: http://twitter.com/app_engine On Thu, Oct 7, 2010 at 9:09 AM, Richard richardcur...@googlemail.comwrote: Hi, the complete rendering pipeline in GAE for Java is on the blacklist, cannot be used. Is there a way to render Fonts and simple Shapes nonetheless? Maybe via a complete non-native implementation? Maybe from Apache Harmony? Is the Apache Batik Project compatible with Google Appengine? Could it be used to do simple rendering (output PNG or SVG)? Did somebody ever try this? Thanks, Richard -- 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.comgoogle-appengine-java%2bunsubscr...@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] Re: Font Rendering possible..? Maybe via Batik?
Hi, It is possible using TinyLine 2.4 SDK at http://tinyline.com Read more about TinyLine for Google App Engine (PDF) http://tinyline.com/tinylineforgae.pdf See the Basic Demos online http://tinylinegae.appspot.com/ Thanks, Dov On Oct 7, 6:09 pm, Richard richardcur...@googlemail.com wrote: Hi, the complete rendering pipeline in GAE for Java is on the blacklist, cannot be used. Is there a way to render Fonts and simple Shapes nonetheless? Maybe via a complete non-native implementation? Maybe from Apache Harmony? Is the Apache Batik Project compatible with Google Appengine? Could it be used to do simple rendering (output PNG or SVG)? Did somebody ever try this? Thanks, Richard -- 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] failure in simple JDO query
Hi,
I was trying to do some simple JDO queries in order to find my way in
java google app engine.
I have an persistent object where I store information about users,
called UserData
I also have made a class DAO where I have methods for creating new
users for checking if a user exist and to show data for users.
I created 2 records successfully but I can't read them.
The error that I get is
HTTP ERROR 500
Problem accessing /. Reason:
com.awt.oat.dao.UserDao.showUserData()V
Caused by:
java.lang.NoSuchMethodError: com.awt.oat.dao.UserDao.showUserData()V
at org.apache.jsp.auction_jsp._jspService(auction_jsp.java:89)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
and a lot more
I'm sure that I 'm doing something really stupid. Please someone to
help me...
Here is my DAO class code:
package com.awt.oat.dao;
import javax.jdo.PersistenceManager;
import com.awt.oat.PMF;
import com.awt.oat.model.UserData;
import com.google.appengine.api.users.User;
import javax.jdo.Query;
import java.util.List;
import java.util.Date;
import javax.jdo.JDOObjectNotFoundException;
public class UserDao {
public void createUser(String uniqueID, String userName, String email)
{
Date date = new Date();
UserData newUser = new UserData(uniqueID, userName, email,
date);
PersistenceManager pm = PMF.get().getPersistenceManager();
try {
pm.makePersistent(newUser);
}finally {
pm.close();
}
}
public void showUserData(){
PersistenceManager pm = PMF.get().getPersistenceManager();
Query query = pm.newQuery(UserData.class);
try{
ListUserData results = (ListUserData)query.execute();
if (results.iterator().hasNext()) {
for(UserData u : results){
System.out.println(table border='1' +
trtdusername/tdtd +
u.getUserName() + /tr
+ trtdemail/tdtd +
u.getEmail() + /td/tr/
table);
}
} else {
System.out.printf(pNo results in the datastore/p);
}
}finally{
query.closeAll();
}
}
}
and here my jsp file
%@ page contentType=text/html;charset=UTF-8 language=java %
%@ page import=java.util.List %
%@ page import=javax.jdo.PersistenceManager %
%@ page import=com.google.appengine.api.users.User %
%@ page import=com.google.appengine.api.users.UserService %
%@ page import=com.google.appengine.api.users.UserServiceFactory %
%@ page import=com.awt.oat.dao.UserDao %
%@ page import=java.io.* %
html
head
link type=text/css rel=stylesheet href=/stylesheets/
main.css /
/head
body
%
UserService userService = UserServiceFactory.getUserService();
User user = userService.getCurrentUser();
if (user != null) {
%
pHello, %= user.getNickname() %! (You can
a href=%= userService.createLogoutURL(request.getRequestURI())
%sign out/a.)/p
%
} else {
%
a href=%= userService.createLoginURL(request.getRequestURI())
%Sign in/a
%
}
UserDao dao = new UserDao();
//dao.createUser(user.getUserId(), user.getNickname(),
user.getEmail()); this one works creates new users in the database
dao.showUserData(); //this gives me error
%
/body
/html
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[appengine-java] Need to include com.google.gdata.client in the deployment for GAE?
Hello All, I am working on a GAE App that will talk using Google Spreadsheet API w/ OAuth. Do I need to include com.google.gdata.client in the deployment package, or is it already available on GAE? Thanks, Saqib -- 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] Re: Spring MVC on GAE: Slow Load Time
I have a Spring app with a pretty full stack currently being developed on gae. I quickly hit the 30 seconds limit at startup, hence the app would no longer even boot. I removed jpa in favor of Objectify, removed all the transaction management as I don't use entity groups, removed some features that were doing classpath scanning and other byte code injection, used as much lazy initializtion as possible. I got my startup time back to 20 seconds. Until I can pay to keep a jvm up, this is unnacceptable. I haven't profile Spring Security yet, which is still the biggest bottleneck. But even with more optimization work, I will be lucky to get a 10 seconds startup. We'll see where this all goes. -- 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] Re: failure in simple JDO query
May be try restarting the development mode server.
On Oct 7, 8:42 pm, x_maras dinost...@gmail.com wrote:
Hi,
I was trying to do some simple JDO queries in order to find my way in
java google app engine.
I have an persistent object where I store information about users,
called UserData
I also have made a class DAO where I have methods for creating new
users for checking if a user exist and to show data for users.
I created 2 records successfully but I can't read them.
The error that I get is
HTTP ERROR 500
Problem accessing /. Reason:
com.awt.oat.dao.UserDao.showUserData()V
Caused by:
java.lang.NoSuchMethodError: com.awt.oat.dao.UserDao.showUserData()V
at org.apache.jsp.auction_jsp._jspService(auction_jsp.java:89)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
and a lot more
I'm sure that I 'm doing something really stupid. Please someone to
help me...
Here is my DAO class code:
package com.awt.oat.dao;
import javax.jdo.PersistenceManager;
import com.awt.oat.PMF;
import com.awt.oat.model.UserData;
import com.google.appengine.api.users.User;
import javax.jdo.Query;
import java.util.List;
import java.util.Date;
import javax.jdo.JDOObjectNotFoundException;
public class UserDao {
public void createUser(String uniqueID, String userName, String email)
{
Date date = new Date();
UserData newUser = new UserData(uniqueID, userName, email,
date);
PersistenceManager pm = PMF.get().getPersistenceManager();
try {
pm.makePersistent(newUser);
}finally {
pm.close();
}
}
public void showUserData(){
PersistenceManager pm = PMF.get().getPersistenceManager();
Query query = pm.newQuery(UserData.class);
try{
ListUserData results = (ListUserData)query.execute();
if (results.iterator().hasNext()) {
for(UserData u : results){
System.out.println(table border='1' +
trtdusername/tdtd +
u.getUserName() + /tr
+ trtdemail/tdtd +
u.getEmail() + /td/tr/
table);
}
} else {
System.out.printf(pNo results in the
datastore/p);
}
}finally{
query.closeAll();
}
}
}
and here my jsp file
%@ page contentType=text/html;charset=UTF-8 language=java %
%@ page import=java.util.List %
%@ page import=javax.jdo.PersistenceManager %
%@ page import=com.google.appengine.api.users.User %
%@ page import=com.google.appengine.api.users.UserService %
%@ page import=com.google.appengine.api.users.UserServiceFactory %
%@ page import=com.awt.oat.dao.UserDao %
%@ page import=java.io.* %
html
head
link type=text/css rel=stylesheet href=/stylesheets/
main.css /
/head
body
%
UserService userService = UserServiceFactory.getUserService();
User user = userService.getCurrentUser();
if (user != null) {
%
pHello, %= user.getNickname() %! (You can
a href=%= userService.createLogoutURL(request.getRequestURI())
%sign out/a.)/p
%
} else {
%
a href=%= userService.createLoginURL(request.getRequestURI())
%Sign in/a
%
}
UserDao dao = new UserDao();
//dao.createUser(user.getUserId(), user.getNickname(),
user.getEmail()); this one works creates new users in the database
dao.showUserData(); //this gives me error
%
/body
/html
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[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.
[appengine-java] SSL for localhost
Is it possible to access my application using https://localhost when I run my web application with google app engine from eclipse. I know that if I upload it to *.appspot.com I would be able to access it through SSL but can I test it on my local server for development? -- 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] Disable Development Console
You should be able to write a servlet filter that catches all incoming URLs. You really shouldn't use the dev app server locally, though. It's not meant to be any kind of production server. For instance: it's single threaded, transactions lock globally (so if something goes wrong a server restart is required). -- Ikai Lan Developer Programs Engineer, Google App Engine Blogger: http://googleappengine.blogspot.com Reddit: http://www.reddit.com/r/appengine Twitter: http://twitter.com/app_engine On Thu, Oct 7, 2010 at 12:25 AM, Mohit Arora mohit.ar...@gmail.com wrote: How to disable Dev console? I am hosting an app on my dev machine want to give out the link to intranet users. Also, don't want them to look into the datastore, which is freely accessible at /_ah/admin for everyone. -- 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.comgoogle-appengine-java%2bunsubscr...@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.
Re: [appengine-java] Need to include com.google.gdata.client in the deployment for GAE?
You have to include it. The gdata client is not available server side. -- Ikai Lan Developer Programs Engineer, Google App Engine Blogger: http://googleappengine.blogspot.com Reddit: http://www.reddit.com/r/appengine Twitter: http://twitter.com/app_engine On Thu, Oct 7, 2010 at 1:42 PM, Saqib Ali docbook@gmail.com wrote: Hello All, I am working on a GAE App that will talk using Google Spreadsheet API w/ OAuth. Do I need to include com.google.gdata.client in the deployment package, or is it already available on GAE? Thanks, Saqib -- 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.comgoogle-appengine-java%2bunsubscr...@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.
Re: [appengine-java] Re: Spring MVC on GAE: Slow Load Time
I would remove Spring entirely. Usually proxies are enough for transaction management. Also instead of Spring MVC you could use jquery or echo2. Cheers, Guillermo. On Thu, 2010-10-07 at 17:32 -0700, Starman wrote: I have a Spring app with a pretty full stack currently being developed on gae. I quickly hit the 30 seconds limit at startup, hence the app would no longer even boot. I removed jpa in favor of Objectify, removed all the transaction management as I don't use entity groups, removed some features that were doing classpath scanning and other byte code injection, used as much lazy initializtion as possible. I got my startup time back to 20 seconds. Until I can pay to keep a jvm up, this is unnacceptable. I haven't profile Spring Security yet, which is still the biggest bottleneck. But even with more optimization work, I will be lucky to get a 10 seconds startup. We'll see where this all goes. -- Simplex Veri Sigillum -- 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.
