[appengine-java] Re: Google App Engine + Struts1 - problem with session
I think you need to implement Serializable interface in your UserBean class. -- 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: mapreduce - passing filters
Hi Vaclav, Thanks for chiming in. I am aware about audao, but did not consider it because I wanted to keep the list of new dependencies as small as possible. Specifically in the case of ANTLR there are backwards-incompatible changes between 2.7 and 3.0, which would force to jarjar them into appengine-mapreduce. This would be a lot of complexity for such a tiny feature, where Fred's approach is simpler. Anyway, I think it would make a great addition into audao, where a Filter implementation based on the GSQL parser should be easy to implement. -- Nacho. On Thu, Nov 25, 2010 at 8:50 AM, Vaclav Bartacek vaclav.barta...@spolecne.cz wrote: Hi, the open-source Java GQL parser (based on ANTLR) you can found here: http://code.google.com/p/audao/wiki/ExtendedGQLParser Vaclav On Nov 24, 7:46 pm, Nacho Coloma icol...@gmail.com wrote: One other thought: instead of adding a GQL interpreter, you might just add a hook for loading a class provided by the user. That class would implement a Filter interface with a method that takes a Configuration and returns a Query object so in your example, mailing and timestamp would get passed in as Configuration parameters and a query object corresponding to the GQL statement you put would be built by a Filter class provided by the user. It would act kind of like a templating language for building queries. Make sense/sound like a good idea? Actually, Filter would be simpler to implement and GQL can be added later as a concrete Filter implementation if someone is still missing it (I doubt it). It also solves the problem of specifying the type of arguments. BTW, arguments should be passed in as request parameters, not configuration attributes (like timestamp greater than or process all comments by user X for example). This means that Filter may need encapsulated access to some methods of AppEngineJobContext.request. It seems that it can be implemented in a couple of hours. I will still wait for 1.4.0, though. On Nov 18, 7:01 am, Nacho Coloma icol...@gmail.com wrote: I'm not entirely sure I understand the scope of the proposed patch. Are you thinking about adding filters at the DatastoreRecordReader level? It's not entirely clear to me that that provides a benefit over just applying the filter at the start of the map() function. Totally willing to believe I'm missing something, though. The map() filter runs against your quota. This is OK for once-only tasks such as schema upgrades, but Mappers can also be used for repetitive tasks such as mailing, data cleanup, etc. For these cases, being able to work on a subset of data is important (process only user accounts with mailing enabled, for example). The biggest problem to resolve is how to specify the filter clause in mapreduce.xml. I am considering implementing a GQL parser as simple as possible, and inject servlet request parameters. Something like: property namemapreduce.mapper.inputformat.datastoreinputformat.query/name valueselect * from users where mailing=:value1 and timestamp=:value2/value /property This implies porting the GQL implementation from python to Java, or implementing an ANTLR-based parser. I feel like I am reinventing the wheel, so any suggestion to use something that exists (or aim to a simpler design) is welcome. On a logistical note, for nontrivial contributions, we require a CLA from either you or your employer (depending on who owns the copyright for your work) before we can accept significant contributions. The relevant forms are at: http://code.google.com/legal/individual-cla-v1.0.html andhttp://code.google.com/legal/corporate-cla-v1.0.html. Feel free to email me privately if this is an issue. No problem with that. Regards, Nacho. -- 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 google-appengine-java%2bunsubscr...@googlegroups.comgoogle-appengine-java%252bunsubscr...@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
[appengine-java] criteria for YAML parser
Hi, recently AppEngine introduced a YAML parser in its code. YamlBeans has been chosen. I tried to find some discussions, blog post, anything about the criteria of the decision, but I could not find any. It would be really helpful to know why YamlBeans and not SnakeYAML or other available java libraries ? Were there any requirements YamlBeans met but others didn't? I will try to summarise the strong points of SnakeYAML comparing to YamlBeans: - SnakeYAML tries to stay as close as possible to PyYAML. At the moment it is guaranteed that any document valid for SnakeYAML is valid for PyYAML and vice versa. It makes very easy to exchange the same document between Java and Python. (even the problems are respected, see: http://sourceforge.net/mailarchive/forum.php?thread_name=4C76B74C.7050009%40rhythm.comforum_name=yaml-core) - Informative error reporting is very important. SnakeYAML shows line and column number in case of invalid YAML document. - SnakeYAML is used by a number of projects like Maven, Cassandra etc (http://code.google.com/p/snakeyaml/wiki/Usage) - SnakeYAML implements the full 1.1 YAML specification. SnakeYAML tries to follow the YAML recommendation in the parser implementation (http://yaml.org/spec/1.1/#id859333) - SnakeYAML has a bigger user community. Activity at Google Code: High. Mailing list is much bigger (number of messages 296 vs 46). A lot of discussion takes place at the issues (97 vs 4). There is some info at the Stackoverflow: http://stackoverflow.com/questions/450399/which-java-yaml-library-should-i-use - SnakeYAML has more commiters and the source is regularly maintained. There is a snapshot version deployed at Sonatype (https://oss.sonatype.org/content/groups/public/org/yaml/snakeyaml/) - SnakeYAML has 96% (!) code coverage (reported by cobertura: http://snakeyamlrepo.appspot.com/releases/1.7/site/cobertura/index.html). It makes the code very stable - SnakeYAML maintains a comprehensive documentation and wiki. (YamlBeans does not have any wiki). Some more comparison can be found here: http://code.google.com/p/snakeyaml/wiki/Comparison - SnakeYAML has many unique features which can be used in future releases of AppEngine The feedback may be very important to further improve other YAML parsers. Knowing strong points of YAML parsers helps the whole user community to come to the proper conclusion. Feel free to ask support from the SnakeYAML community if AppEngine decides to migrate :) - Andrey -- 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] started to transition my Google Apps accounts; GAE account gives Unauthorized
Hey all, As you may know, Google is migrating Google Apps domains to a new infrastructure and as of a few days, they're offering admins to transition their user base to this new infrastructure on their own request. I already migrated my own account (domain admin), to start testing (Web Albums using Picasa is a requested feature f.e.). Except for using two Gmail accounts concurrently, a regular Gmail, and a custom domain, things are working smoothly. However, logging into my GAE account on appspot isn't working anymore. Now, I get a page with a title saying Unauthorized (401), which tells me: Unauthorized You are not authorized to access this application. Return to Applications screen » Note: I know I need to access my custom GAE page using the custom login page @ https://appengine.google.com/a/YOURDOMAIN.COM/, which is what I'm doing. It seems that the new infrastructure is breaking things here and there... Anyone also running into this? of maybe, any Googlers (or G- men, if you will) watching... Cheers, Thijs -- 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] Launch Default Email Client
Hi, I am semi-new to software development and to GAE, so please take it easy on me!! I have what is hopefully a simple question. I have developed an app that currently stores a list of customers in the datastore and one of the values of each customer is an email address. I am displaying the list of customers to the user and was wondering if it was possible to have it where clicking on the email address would launch the default email client of the users desktop and populate the TO field with the email address. Can someone point me towards a library that might work? Thanks in advance for the 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.
[appengine-java] Re: Install plugin failed. Missing Requirement. Eclipse Helios SR1.
You'll need to get the Web Tools Platform (WTP). The easiest way of getting this is to Download the Eclipse IDE for Java EE developers edition here: http://www.eclipse.org/downloads/packages/eclipse-ide-java-ee-developers/heliossr1 Don't forget to download a JDK to avoid problems down the line. On Nov 16, 12:50 pm, KevinLippiatt kevin.lippi...@googlemail.com wrote: I am unable to install the Google Plugin for Eclipse. I have Eclipse Helios SR1. Cannot complete the install because one or more required items could not be found. Software being installed: Google Plugin for Eclipse 3.6 1.4.0.v201010280102 (com.google.gdt.eclipse.suite.e36.feature.feature.group 1.4.0.v201010280102) Missing requirement: Google Plugin for Eclipse 3.6 1.4.0.v201010280102 (com.google.gdt.eclipse.suite.e36.feature.feature.group 1.4.0.v201010280102) requires 'org.eclipse.jst.server.core 0.0.0' but it could not be found -- 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] Using JAIN-SIP
Hello, I like to implement SIP entities that uses JAIN-SIP. Does GAE supports JAIN-SIP at this moment? Salekul -- 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: Google App Engine with MySQL Database.
Why use the JDO/JPA? You don't need to use those. For appengine you need to use BigTable. JDO/JPA is one way to use BigTable. There are others (that are easier to use but may not have the same portability): http://code.google.com/p/objectify-appengine/ http://sites.google.com/site/slim3appengine/slim3-datastore http://code.google.com/p/twig-persist/ Shawn -- 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: Launch Default Email Client
Hi, Just using a mailto url in the html of your page (or inserted via a HTML() widget of GWT) should do it: see http://email.about.com/od/mailtoemaillinks/a/mailto_elements.htm. didier On Nov 26, 8:50 am, Kris ksba...@gmail.com wrote: Hi, I am semi-new to software development and to GAE, so please take it easy on me!! I have what is hopefully a simple question. I have developed an app that currently stores a list of customers in the datastore and one of the values of each customer is an email address. I am displaying the list of customers to the user and was wondering if it was possible to have it where clicking on the email address would launch the default email client of the users desktop and populate the TO field with the email address. Can someone point me towards a library that might work? Thanks in advance for the 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.
[appengine-java] Re: Launch Default Email Client
Thanks! That did the trick. -- Kris Barnes On Saturday, November 27, 2010 at 12:13 AM, Didier Durand wrote: Hi,Just using a mailto url in the html of your page (or inserted via aHTML() widget of GWT) should do it: seehttp://email.about.com/od/mailtoemaillinks/a/mailto_elements.htm.didierOn Nov 26, 8:50 am, Kris ksba...@gmail.com wrote: Hi, I am semi-new to software development and to GAE, so please take it easy on me!! I have what is hopefully a simple question. I have developed an app that currently stores a list of customers in the datastore and one of the values of each customer is an email address. I am displaying the list of customers to the user and was wondering if it was possible to have it where clicking on the email address would launch the default email client of the users desktop and populate the TO field with the email address. Can someone point me towards a library that might work? Thanks in advance for the 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 ema il 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] Re: Using JAIN-SIP
As long as it has no dependencies which are on the white list http://code.google.com/appengine/docs/java/jrewhitelist.html it should work. On Nov 25, 8:44 am, SIPuser sale...@gmail.com wrote: Hello, I like to implement SIP entities that uses JAIN-SIP. Does GAE supports JAIN-SIP at this moment? Salekul -- 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.
