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• Nibernate, DynamicProxy, and Spring AOP

  - by jeff

  We have an Spring IOC managed application that uses NHibernate in its persistence layer. We have use the Spring AOP and understand its terminology and capabilities. We have some investment in Spring proxies. Now, we want to add a PropertyChangedMixin and a ValidatorInterceptor (not nhibernate validator, but based on Spring validation) onto our NHibernate managed objects. I've looked at the hooks for NHiberate IInterceptor and EventListeners and that gives me a place to apply the desired proxies. If I use the Spring proxies is it going to play nice with the existing nhibernate proxies. We don't lazy load. From the simple nhibernate stuff the benefits of DynamicProxy look appealing. I can go either way, but I'd like to hear suggestions. Thanks, jeff

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• Gson module not found Blackberry Java application

  - by Curro

  Hi. I'm developing a simple application for Blackberry and i'm using Google's gson to retrieve some data from a server. The UI was working fine but when I added the gson part it started failing, it wont run. When I run the application in the simulator it show this error: "Uncaught: RuntimeException" on that annoying white screen of death and after holding the click button I can see that there is an alert dialog that says "Module 'gson-1.4' not found". However I did added "gson-1.4.jar" in the Project's Properties - Java Build Path - Add External JARs... also, the Gson objects are recognized at my code, no syntax errors at my code. BTW, I'm using Eclipse and the most recent Blackberry SDK Please help

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• Django: Admin with multiple sites & languages

  - by lazerscience

  Hi everybody! I'm supposed to build some Django apps, that allow you to administer multiple sites through one backend. The contrib.sites framework is quite perfect for my purposes. I can run multiple instances of manage.py with different settings for each site; but how should django's admin deal with different settings for different sites, eg. if they have different sets of languages, a different (default) language? So there are some problem s to face if you have to work on objects coming from different sites in one admin... I think settings.ADMIN_FOR is supposed to be quite helpful for cases like this, but theres hardly any documentation about it and I think it's not really used in the actual Django version (?). So any ideas/solutions are welcome and much appreciated! Thanks a lot...

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• Addressing a memory leak stops my UI from showing iphone

  - by dubbeat

  Hi I've being getting a memory leak warning with a UITabbarcontroller. If I release the tabbarcontroller the warning goes away but the tabbar will not show any content. If I debug the app with the warning still in it the app runs but will crash after a couple of minutes UITabBarController *tabBarController = [[UITabBarController alloc] init]; tabBarController.view.frame = CGRectMake(0, 0, 320, 460); tabBarController.viewControllers=localControllersArray; // Clean up objects we don't need anymore [promoTabOptionHome release]; [promoTabOptionInfo release]; [promoTabOptionEvents release]; [promoTabOptionBuy release]; [localControllersArray release]; // Finally, add the tab controller view to the parent view [self.view addSubview:tabBarController.view]; //[tabBarController release]; commenting out this line removes the warning but results in no content being shown

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• What is the correct way to unit test areas around exceptions

  - by Codek

  Hi, Looking at our code coverage of our unit tests we're quite high. But the last few % is tricky because a lot of them are catching things like database exceptions - which in normal circumstances just dont happen. For example the code prevents fields being too long etc, so the only possible database exceptions are if the DB is broken/down, or if the schema is changed under our feet. So is the only way to Mock the objects such that the exception can be thrown? That seems a little bit pointless. Perhaps it's better to just accept not getting 100% code coverage? Thanks, Dan

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• Can this be done with the ORM? - Django

  - by RadiantHex

  Hi folks, I have a few item listed in a database, ordered through Reddit's algorithm. This is it: def reddit_ranking(post): t = time.mktime(post.created_on.timetuple()) - 1134000000 x = post.score if x>0: y=1 elif x==0: y=-0 else: y=-1 if x<0: z=1 else: z=x return (log(z) + y * t/45000) I'm wondering if there is any clever way of using Django's ORM, in order to UPDATE the models in bulk. Without doing this: items = Item.objects.filter(created_on__gte=datetime.now()-timedelta(days=7)) for item in items: item.reddit_rank = reddit_rank(item) item.save() I know about the F() object, but I can't figure out if this function can be performed inside the ORM. Any ideas? Help would be very much appreciated!

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• How to include simple collections in ConfigurationSection

  - by mikemanne

  Is there a way for me to include a simple array of strings, or List<string> on my custom subclass of ConfigurationSection? (Or an array or generic list of simple data objects, for that matter?) I'm becoming familiar with the new (and VERY verbose) ConfigurationSection, ConfigurationElement, and ConfigurationElementCollection classes, but I'm by no means an expert yet. It seems like ConfigurationSection should handle simple collections/lists on its own, without me having to create a custom ConfigurationElementCollection subclass for each and every one. But I haven't found any reference to this ability online.

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• Why is the servlet request not available in the portlet API

  - by John Smith

  The portlet API deos not provide any reference to the enclosing servlet request and response objects. I know it is not the preferred model of interaction with the user, but it seems draconian to remove all access. I understand that for portlet driven interaction with the user, you want to use portlet URLs, and let the portlet container manage all the complexity. However if you have a number of portlets which are basically showing variants of the same data, it makes sense for them to be able to use the enclosing request to drive the data. We ended up using using a Liferay specific call to get the request, and it all seems to work as we wish. However I do feel the guilt. So my question really is, is there an underlying deep reason for the prohibition, or is it just to enforce the authors view of the API environment?

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• WPF Animate a Matrix using interpolation

  - by Mark

  I'm having a issue with my application that is using touch gestures to scale, translate and rotate my scene. I was using a TransformGroup which contained TranslateTransform, ScaleTransform and a RotateTransform but I could not get the movement correct, it always jumps and skips, so I moved to a MaxtrixTransform which I was able to use much easier to get my scene to be zoomable, rotatable and panable nicely. However, what I later found out was that you cannot animate smoothly (using interpolation) the values of a Matrix, for what reason I have no idea, but its part of the MSDN doco and the properties of the Matrix are not dependency properties anyways... Has anyone had any luck animating a matrix to make it smooth? The only idea(s) I have had is to animate a few different, custom DP which all have callbacks that I update the matrix from OR To convert the matrix to a set of Transform objects that I then animate and then afterwords convert back. Is there a smarter way to do this?

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• LINQ to SQL Translation

  - by Ben

  Hi, Depending on how I map my linq queries to my domain objects, I get the following error The member 'member' has no supported translation to SQL. This code causes the error: public IQueryable<ShippingMethod> ShippingMethods { get { return from sm in _db.ShippingMethods select new ShippingMethod( sm.ShippingMethodID, sm.Carrier, sm.ServiceName, sm.RatePerUnit, sm.EstimatedDelivery, sm.DaysToDeliver, sm.BaseRate, sm.Enabled ); } } This code works fine: public IQueryable<ShippingMethod> ShippingMethods { get { return from sm in _db.ShippingMethods select new ShippingMethod { Id = sm.ShippingMethodID, Carrier = sm.Carrier, ServiceName = sm.ServiceName, EstimatedDelivery = sm.EstimatedDelivery, DaysToDeliver = sm.DaysToDeliver, RatePerUnit = sm.RatePerUnit, IsEnabled = sm.Enabled, BaseRate = sm.BaseRate }; } } This is my testmethod I am testing with: [TestMethod] public void Test_Shipping_Methods() { IOrderRepository orderRepo = new SqlOrderRepository(); var items = orderRepo.ShippingMethods.Where(x => x.IsEnabled); Assert.IsTrue(items.Count() > 0); } How does the way in which I instantiate my object affect the linq to sql translation? Thanks Ben

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• How are java.lang.Object's protected methods protected from subclasses?

  - by Adrian Lang

  The keyword protected grants access to classes in the same package and subclasses (http://java.sun.com/docs/books/tutorial/java/javaOO/accesscontrol.html). Now, every class has java.lang.Object as superclass (http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html). Hence I conclude that every class may access java.lang.Object's methods even if they are protected. Take a look at the following example: public class Testclass { public Object getOne() throws CloneNotSupportedException { return this.clone(); } public Object getTwo() throws CloneNotSupportedException { return ((Object) this).clone(); } } While getOne() compiles fine, getTwo() gives Testclass.java:6: clone() has protected access in java.lang.Object return ((Object) this).clone(); I neither understand why getTwo() doesn't compile nor what's the difference (regarding the access of java.lang.Objects members) with getOne().

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• json encodes aray

  - by Stan Forrest

  Okay I have been struggling with this for hours. What I am doing is creating array of what I call objects that can be moved around on a calendar. Below is my code $year = date('Y'); $month = date('m'); echo json_encode(array( array( 'id' => 111, 'title' => "Event3", 'start' => "$year-$month-10", 'url' => "http://domain.com/" ), array( 'id' => 222, 'title' => "Event2", 'start' => "$year-$month-20", 'end' => "$year-$month-22", 'url' => "http://domain.com/" ) )); Now here is my problem. I need to loop through a mysql database to retrieve the information for each object. For some reason I can't get this to work. Please help Thanks Stan

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• Why does GetClusterShape return null when the cluster specification was retrieved through the GetClu

  - by Markus Olsson

  Suppose I have a virtual earth shape layer called shapeLayer1 (my creative energy is apparently at an alltime low). When i call the GetClusteredShapes method I get an array of VEClusterSpecification objects that represent each and every one of my currently visible clusters; no problem there. But when I call the GetClusterShape() method it returns null... null! Why on earth would it do that? I used firebug to confirm that the private variable of the VEClusterSpecification that's supposed to hold a reference to the shape is indeed null so it's not the method that's causing the problem. Some have suggested that this is actually documented behavior Returns null if a VEClusterSpecification object was returned from the VEShapeLayer.GetClusteredShapes Method But looking at the current MSDN documentation for the VEShape class it says: Returns if a VEClusterSpecification object was returned from the VEShapeLayer.GetClusteredShapes Method Is this a bug or a feature? Is there any known workarounds or (if it is a bug) some plan on when they are going to fix it?

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• moqing static method call to c# library class

  - by Joe

  This seems like an easy enough issue but I can't seem to find the keywords to effect my searches. I'm trying to unit test by mocking out all objects within this method call. I am able to do so to all of my own creations except for this one: public void MyFunc(MyVarClass myVar) { Image picture; ... picture = Image.FromStream(new MemoryStream(myVar.ImageStream)); ... } FromStream is a static call from the Image class (part of c#). So how can I refactor my code to mock this out because I really don't want to provide a image stream to the unit test.

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• What's the simplest way to create a Zend_Form tabular display with each row having a radio button?

  - by RenderIn

  I've seen simple examples of rendering a Zend_Form using decorators, but I'm not sure they are able to handle the issue I'm facing very well. I query the database and get an array of user objects. I want to display these users as a form, with a radio button next to each of them and a submit button at the bottom of the page. Here's roughly what the form will look like: [user id] [email] [full name] ( ) 1 [email protected] Test user 1 (*) 2 [email protected] Test user 2 [SUBMIT] Is this something achievable in a reasonably straightforward way or do I need to use the ViewScript partial?

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• How to see a branch created in master

  - by richard

  Hi, I create a branch in my master repository (192.168.1.2). And in my other computer, I did '$ git pull --rebase ', I see Unpacking objects: 100% (16/16), done. From git+ssh://[email protected]/media/LINUXDATA/mozilla-1.9.1 62d004e..b291703 master -> origin/master * [new branch] improv -> origin/improv But when I do a 'git branch' in my local repository, I see only 1 branch and I did '$ git checkout improv ' $ git branch * master $ git checkout improv error: pathspec 'improv' did not match any file(s) known to git. Did you forget to 'git add'?

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• How do i enable innodb on ubuntu server 10.04

  - by Matt

  Here is my entire my.cnf [client] port = 3306 socket = /var/run/mysqld/mysqld.sock # Here is entries for some specific programs # The following values assume you have at least 32M ram # This was formally known as [safe_mysqld]. Both versions are currently parsed. [mysqld_safe] socket = /var/run/mysqld/mysqld.sock nice = 0 [mysqld] key_buffer = 224M sort_buffer_size = 4M read_buffer_size = 4M read_rnd_buffer_size = 4M myisam_sort_buffer_size = 12M query_cache_size = 44M # # * Basic Settings # # # * IMPORTANT # If you make changes to these settings and your system uses apparmor, you may # also need to also adjust /etc/apparmor.d/usr.sbin.mysqld. # user = mysql socket = /var/run/mysqld/mysqld.sock port = 3306 basedir = /usr datadir = /var/lib/mysql tmpdir = /tmp skip-external-locking # # Instead of skip-networking the default is now to listen only on # localhost which is more compatible and is not less secure. bind-address = 127.0.0.1 # # * Fine Tuning # #key_buffer = 16M max_allowed_packet = 16M thread_stack = 192K thread_cache_size = 8 # This replaces the startup script and checks MyISAM tables if needed # the first time they are touched myisam-recover = BACKUP #max_connections = 100 #table_cache = 64 #thread_concurrency = 10 # # * Query Cache Configuration # query_cache_limit = 1M #query_cache_size = 16M # # * Logging and Replication # # Both location gets rotated by the cronjob. # Be aware that this log type is a performance killer. # As of 5.1 you can enable the log at runtime! #general_log_file = /var/log/mysql/mysql.log #general_log = 1 log_error = /var/log/mysql/error.log # Here you can see queries with especially long duration #log_slow_queries = /var/log/mysql/mysql-slow.log #long_query_time = 2 #log-queries-not-using-indexes # # The following can be used as easy to replay backup logs or for replication. # note: if you are setting up a replication slave, see README.Debian about # other settings you may need to change. #server-id = 1 #log_bin = /var/log/mysql/mysql-bin.log expire_logs_days = 10 max_binlog_size = 100M #binlog_do_db = include_database_name #binlog_ignore_db = include_database_name # # * InnoDB # # InnoDB is enabled by default with a 10MB datafile in /var/lib/mysql/. # Read the manual for more InnoDB related options. There are many! # # * Security Features # # Read the manual, too, if you want chroot! # chroot = /var/lib/mysql/ # # For generating SSL certificates I recommend the OpenSSL GUI "tinyca". # # ssl-ca=/etc/mysql/cacert.pem # ssl-cert=/etc/mysql/server-cert.pem # ssl-key=/etc/mysql/server-key.pem [mysqldump] quick quote-names max_allowed_packet = 16M [mysql] #no-auto-rehash # faster start of mysql but no tab completition [isamchk] key_buffer = 16M # # * IMPORTANT: Additional settings that can override those from this file! # The files must end with '.cnf', otherwise they'll be ignored. # !includedir /etc/mysql/conf.d/ And here is my show engines call....i have no idea what i need to do to enable innodb show engines; +------------+---------+----------------------------------------------------------------+--------------+------+------------+ | Engine | Support | Comment | Transactions | XA | Savepoints | +------------+---------+----------------------------------------------------------------+--------------+------+------------+ | MyISAM | DEFAULT | Default engine as of MySQL 3.23 with great performance | NO | NO | NO | | MRG_MYISAM | YES | Collection of identical MyISAM tables | NO | NO | NO | | BLACKHOLE | YES | /dev/null storage engine (anything you write to it disappears) | NO | NO | NO | | CSV | YES | CSV storage engine | NO | NO | NO | | MEMORY | YES | Hash based, stored in memory, useful for temporary tables | NO | NO | NO | | FEDERATED | NO | Federated MySQL storage engine | NULL | NULL | NULL | | ARCHIVE | YES | Archive storage engine | NO | NO | NO | +------------+---------+----------------------------------------------------------------+--------------+------+------------+ 7 rows in set (0.00 sec)

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• Get #part in URL with PHP/Symfony

  - by fesja

  Hi, I'm working with Symfony 1.2. I've a view with a list of objects. I can order them, filter them by category, or moving to the next page (there is pagination). Everything is done with AJAX, so I don't have to load all the page again. What I want to achieve is to have http://urltopage#page=1&order=title&cats=1,2 for example; so the new page is saved in the browser history, and he can paste it to another web. I haven't found a way to get the #part. I know that's only for the browser but I can't believe I can't get through PHP. I'm sure there is a simple solution I'm missing... thanks a lot!

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• Removing a result from Queryset

  - by Enrico

  Is there a simple way to discard/remove the last result in a queryset without affecting the db? I am trying to paginate results in Django, but don't know the total number of objects for a given query. I was planning on using next/previous or older/newer links, so I only need to know if this is the first and/or last page. First is easy to check. To check for the last page I can compare the number of results with the pagesize or make a second query. The first method fails to detect the last page when the number of results in the last set equals the pagesize (ie 100 records get broken into 10 pages with the last page containing exactly 10 results) and I would like to avoid making a second query. My current thought is that I should fetch pagesize + 1 results from the db. If the queryset length equals 11, I know this is not the last page and I want to discard the last result in the queryset before passing the queryset to the template.

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• Retrieve the CAKeyframeAnimationKey's key in AnimationDidStop

  - by JacktheSparrow

  I have multiple CAKeyframeAnimation objects, each with a unique key like the following: ..... [myAnimation setValues:images]; [myAnimation setDuration:1]; .... [myLayer addAnimation:myAnimation forKey:@"unique key"]; My question is, if I have multiple animation like this and each with a unique key, how do I retrieve their keys in the method AnimationDidStop? I want to be able to do something like this: -(void)animationDidStop:(CAAnimation*)animation finished:(BOOL)flag{ if(..... ==@"uniquekey1"){ //code to handle this specific animation here: }else if(.... ==@"uiquekey2"){ //code to handle this specific animation here: } }

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• Suggest books/learning path for writing smartphone apps

  - by chibineku

  I have been writing a lot of HTML, CSS, PHP, MySQL and JavaScript lately working on a website, and I would like to move on to 'proper' OOP with an eye to making smartphone apps. I would like to at least cover iPhone and BlackBerry, which means learning Objective C, Cocoa and Java, before learning the specifics of interacting with the devices themselves, such as native bluetooth/GPS/internet API/methods. I would appreciate pointers to books or resources that will get me from a procedural web developer to object oriented app-maker. Most of the reviews of books on Objective C and Java have been mixed. I am about to start working my way through Beginning Java Objects (APress) which I have borrowed from my brother, so even if it's not a good intro at least it was free!

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• how do i see if a big JSON object contains a value?

  - by Haroldo

  I'm using PHP to json encode a massive multi-dimensional array of events, so i get something like this: var ents = {"7":{"event_id":"7","nn":"The Whisky Drifters","nn_url":"the-whisky-drifters","venue":"The Grain Barge","date_num":"2010-06-11","date_txt":"Friday 11th June","gig_club":"1","sd":"A New Acoustic String Band...","ven_id":"44","art":0},"15":{"event_id":"15","nn":"Bass Kitchen","nn_url":"bass-kitchen","venue":"Timbuk2","date_num":"2010-06-11","date_txt":"Friday 11th June","gig_club":"2","sd":"Hexadecimal \/ DJ Derek \/ Id","ven_id":"21","art":1}, the first dimension is the id, see var ents = {"7":{ So its possible to get the ids without examining the nested objects... What's the fastest, most efficent way to check if my JSON contains an id?

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• NHibernate: insert multiple items at once

  - by Gart

  Hello, all! I am learning NHibernate now and I would like to know is it possible to save multiple objects to database in one operation. For example, consider this test code private static void SaveTestBillNamesInSession(ISession session, params string[] names) { var bills = from name in names select new Bill { Name = name, DateRegistered = DateTime.Now, }; foreach (var bill in bills) session.SaveOrUpdate(bill); } This loop here generates many INSERT statements which may be sub-optimal in SQL Server 2008 which allows to include multiple data rows in one INSERT statement. Is it possible to rewrite this code to make use of this functionality - insert all the data in one operation?

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• ASP.NET connection pool question

  - by James Evans

  Does the same connection string used on two different physical servers hosting different web applications that talk to the same database draw connections from the same connection pool? Or are pooled connections confined to at the application level? I ask because I inherited a 7 year old .NET 1.1 web application which is riddled with in-line SQL, unclosed and undisposed sql connection and datareader objects. Recently, I was tasked to write a small web app that is hosted on another server and talks to the same database and therefore used the same database connection string. I created a LINQ object to read and write the one table required by the app. Now the original .NET 1.1 app is throwing exceptions like "Timeout expired. The timeout period elapsed prior to obtaining a connection from the pool. This may have occurred because all pooled connections were in use and max pool size was reached." Maybe these are unreleated, but wanted to get your opinions to make sure I cover all my bases. Thanks!

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• Android: Create TextView that flashes when clicked

  - by Jeremy

  How do I set up a TextView to flash when it is clicked? I essentially want one of the objects that is displayed in a ListActivity, but inside a normal View. I have tried to do this by adding an OnClickListener, but what I really need is something like adding an On(Un)SelectListener. Using the onClickListener, I can change the TextView background, but obviously the background stays that color. I thought of using a new Handler().postDelayed(new Runnable(){ ... }) kind of thing to reset the backround after some small time, but I did not know if this would be overkill for what I'm trying to do. What would you recommend?

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