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  • NHibernate - is property lazy loading possible?

    - by Ben
    I've got some binary data that I store and was going to separate this out into a separate table so it could be lazy loaded. However, i then came across this post by Ayende (http://ayende.com/Blog/archive/2010/01/27/nhibernate-new-feature-lazy-properties.aspx) which suggests that property lazy loading is now possible. I have added the lazy="true" attribute to my property mapping but the field is still loaded from the database (I am using a simple text field to test). My query: return _session.CreateQuery("from Product") .SetMaxResults(1) .UniqueResult<Product>(); Mapping: <property name="Description" type="string" column="FullDescription" lazy="true"/> Has anyone been able to get this working? Personally I prefer this approach than having to add another table to my database.

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  • What's the standard algorithm for syncing two lists of objects?

    - by Oliver Giesen
    I'm pretty sure this must be in some kind of text book (or more likely in all of them) but I seem to be using the wrong keywords to search for it... :( A common task I'm facing while programming is that I am dealing with lists of objects from different sources which I need to keep in sync somehow. Typically there's some sort of "master list" e.g. returned by some external API and then a list of objects I create myself each of which corresponds to an object in the master list. Sometimes the nature of the external API will not allow me to do a live sync: For instance the external list might not implement notifications about items being added or removed or it might notify me but not give me a reference to the actual item that was added or removed. Furthermore, refreshing the external list might return a completely new set of instances even though they still represent the same information so simply storing references to the external objects might also not always be feasible. Another characteristic of the problem is that both lists cannot be sorted in any meaningful way. You should also assume that initializing new objects in the "slave list" is expensive, i.e. simply clearing and rebuilding it from scratch is not an option. So how would I typically tackle this? What's the name of the algorithm I should google for? In the past I have implemented this in various ways (see below for an example) but it always felt like there should be a cleaner and more efficient way. Here's an example approach: Iterate over the master list Look up each item in the "slave list" Add items that do not yet exist Somehow keep track of items that already exist in both lists (e.g. by tagging them or keeping yet another list) When done iterate once more over the slave list Remove all objects that have not been tagged (see 4.) Update Thanks for all your responses so far! I will need some time to look at the links. Maybe one more thing worthy of note: In many of the situations where I needed this the implementation of the "master list" is completely hidden from me. In the most extreme cases the only access I might have to the master list might be a COM-interface that exposes nothing but GetFirst-, GetNext-style methods. I'm mentioning this because of the suggestions to either sort the list or to subclass it both of which is unfortunately not practical in these cases unless I copy the elements into a list of my own and I don't think that would be very efficient. I also might not have made it clear enough that the elements in the two lists are of different types, i.e. not assignment-compatible: Especially, the elements in the master list might be available as interface references only.

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  • How can I set controls for a web page ??

    - by Rami Jarrar
    I have this login page with https, and i reach to this approach:: import ClientForm import urllib2 request = urllib2.Request("http://ritaj.birzeit.edu") response = urllib2.urlopen(request) forms = ClientForms.ParseResponseEx(response) response.close() f = forms[0] username = str(raw_input("Username: ")) password = str(raw_input("Password: ")) ## Here What To Do request2 = form.click() i get the controls of that page >>> f = forms[0] >>> [c.name for c in f.controls] ['q', 'sitesearch', 'sa', 'domains', 'form:mode', 'form:id', '__confirmed_p', '__refreshing_p', 'return_url', 'time', 'token_id', 'hash', 'username', 'password', 'persistent_p', 'formbutton:ok'] so how can i set the username and password controls of the "non-form form" f ??? and i have another problem,, how to know if its the right username and password ??

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  • Shell script query

    - by WENzER
    Hi, I am having database. for that i want to get the script of all Store procedure. I have used dba_source table for getting script of Store procedure. Now I want to write a shell script which will give me all the scripts of store procedure in the seperate files. The approach i have applied that first I have written a query which will give the name of all store procedures and I am storing these names in seperate file. Now I am running a loop for getting sript of store procedures by using the names stored in file. All this i am able to do seperatly but not in shell script since I am new to it Please help me Thanks

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  • Using GLOrtho to view Side, Front, Top perspectives of a 3D scene

    - by talldan
    Dear all, I'm building a game level editing app as part of a university project. In my application I have multiple viewports, a Perspective viewport and three orthographic views all setup to view the same scene. I've successfuly setup the orthographic views and can translate and scale them to mimic scrolling and zooming. Unfortunately, I'm having one problem - my scene still contains 3 dimensions, so objects viewed in orthographic mode of certain depths are clipped when they fall outside of my clipping volume. Most 3D authoring tools or level editors allow you to view all objects in orthographic mode regardless of depth. I guess what I need to do is scale my scene in the appropriate dimension so that all values lie between 1 and -1, is there a straightforward way of going about this? Or is there a different better approach. Thanks very much for your help, Dan

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  • Faster jquery selector for finding a number of TD elements

    - by Bernard Chen
    I have a table where each row has 13 TD elements. I want to show and hide the first 10 of them when I toggle a link. These 10 TD elements all have an IDs with the prefix "foo" and a two digit number for its position (e.g., "foo01"). What's the fastest way to select them across the entire table? $("td:nth-child(-n+10)") or $("td[id^=foo]") or is it worth concatenating all of the ids? $("#foo01, #foo02, #foo03, #foo04, #foo05, #foo06, #foo07, #foo08, #foo09, #foo10") Is there another approach I should be considering as well?

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  • Data logged to a file; how do I rotate logs and how do I parse the data to not have 'gaps' in the da

    - by phidah
    I've got a web application that, for performance reasons, throws any data sent into a logfile. I've got two concerns with this approach: How do I best rotate logs, in order to not lose data? For each user session multiple requests are logged. Each request has a unique id so there is an easy way for me to tie the requests to the session. The problem is, however, that if I rotate the logs I risk ending up with one request in one log and another request in another log. How do I arrange my parsing in a way that allows me to parse all requests from a given session? I am willing to define a session timelimit, for example that the requests must, at maximum be 30 minutes apart. If I had a hourly log rotation at 00 minutes: What if the user made one request at 13:59 and one at 14:01 - The user would end up having requests in two different logs.

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  • How to Use .NET Assembly from Legacy SQL Server 2000 DTS

    - by shyneman
    Hi All, I have a .NET assembly that needs to be called from a DTS package. There are two options I am considering to get this to work: 1) write a COM-callable wrapper for the .NET assembly and have the VBScript create the COM object to use 2) write a .NET command-line exe that uses that .NET assembly and have the VBScript execute that exe Can anybody comment on the pros/cons of either approach and which is the better way of doing this? If there are other solutions, I'd love to hear them too. Thanks a lot for any input.

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  • Mercurial - revert back to old version and continue from there

    - by Paolo
    I'm using mercurial locally for a project (it's the only repo there's no pushing/pulling to/from anywhere else). To date it's got a linear history. However, the current thing I'm working on I've now realised is a terrible approach and I want to go back to the version before I started it and implement it a different way. I'm a bit confused with the branch / revert / update -C commands in Mercurial. Basically I want to revert to version 38 (currently on 45) and have my next commits have 38 as a parent and carry on from there. I don't care if revisions 39-45 are lost for ever or end up in a dead-end branch of their own. Which command / set of commands do I need?

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  • How to handle packages provided Java using Eclipse P2

    - by ctron
    I got some OSGi bundles in binary form that declare dependencies to bundles like "org.ietf.jgss" which are provided by Java itself. P2 detects these dependencies and when I try to install the product later using the P2 director application the installation fails since no bundle provides these packages. But if I use the P2 product build I get a complete installed product that I can use. My problem is that I don't want to create product files and build for each variation of the application. So tried the approach to copy all P2 repositories in order to install the product on the target system using the P2 director. So how do I handle dependencies to packages provided by Java and how to I "convince" P2 to ignore these packages if they are provided by Java itself. Thanks for helping.

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  • flash with recaptcha or any other captcha solution

    - by Katsuke
    Hello there, I have been looking over the internet for a while about this, but it doesn't seem like there is any information available specifically related to captcah and flash. My purpose is to create an image up-loader on flash, and implement "recaptcha" on it, so the upload is controlled. I know that some people will say, "well you can't automatize flash input so you don't need captcha in this situation" even though this is somewhat true, there is still screen macro programs that could potentially make the computer upload hundreds of pictures if there is not something in place to avoid it. I thought of implementing my own captcha but that seems to me like i would be reinventing the wheel, can anyone point me on the right track for this? or suggest another approach to avoid abuse on my image up-loader flash?

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  • Translating external api results in Drupal

    - by Chuck Vose
    We're building a multi-language Drupal stack and one of the concerns we have is that our payment processor is going to have to send back some information to us. We've been able to narrow this down so that the strings they're sending back look like <country code>-<number of months> so we can easily translate that into any number of languages, except English. t('FR-12') is all well and good if we want to translate that into a french description, but because there's not an English language a similar string like t('EN-12') is not translatable. Similarly for the generic string: #API_Connection_Error This sort of generic string approach seemed really compelling to me at first but it seems to not work in Drupal. Do you have any suggestions about how to translate generic strings like this into both English and other languages? Thank you, I've been looking through Google all morning.

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  • Why are action based web frameworks predominant?

    - by deamon
    Most web frameworks are still using the traditional action based MVC model. A controller recieves the request, calls the model and delegates rendering to a template. That is what Rails, Grails, Struts, Spring MVC ... are doing. The other category, the component based frameworks like Wicket, Tapestry, JSF, or ASP.Net Web Forms have become more popular over the last years, but my perception is that the traditional action based approach is far more popular. And even ASP .Net Web Forms has become a sibling name ASP .Net Web MVC. I think the kind of applications built with both types of frameworks is overlapping very much, so the question is: Why are action based frameworks so predominant?

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  • The Best solution to sending emails to group members in a social network.

    - by praveen
    I'm developing a social network in php. There is a feature to create custom groups by members and i want to enable the owner of the group to send emails in bulk to all group members. And most importantly i want to make sure that most mails are not going to end up in users' SPAM list. I'm using PHPMailer in my website What should be the best and affordable approach? These are the solutions i came up with. Pls include your own if possible. Using my servers' (hostgator.com) given SMTP server to send emails in bulk Using google apps SMTP (i have even setup SPF for this) Using a third-party to handle my outgoing messages (i.e: mailChimp, iContact ? do they provide APIs ? this is just my idea) Thanks in advance

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  • jQuery Validation Plugin - Enable 'Eager' Validation only after and Invalid Submit

    - by Ryan Fitzer
    By default, if a user enters a value in a field, the 'eager' validation kicks in. Is there any way to disable 'eager' validation before submit and then enable it after an invalid submit has happened? I've used $.validator.setDefaults() to initially set the onkeyup and onfocusout properties to false. In the invalidHandler method I rerun the $.validator.setDefaults(), setting onkeyup and onfocusout properties to true. No luck with this approach. Basically, I only want the 'eager' validation to take place after the user tries to submit an invalid form. Thanks for any help.

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  • Mockito verify no more interactions but omit getters

    - by michael lucas
    Mockito api provides method: Mockito.verifyNoMoreInteractions(someMock); but is it possible in Mockito to declare that I don't want more interactions with a given mock with the exceptions of interactions with its getter methods? The simple scenario is the one in which I test that sut changes only certain properties of a given mock and lefts other properties untapped. In example I want to test that UserActivationService changes property Active on an instance of class User but does't do anything to properties like Role, Password, AccountBalance, etc. I'm open to criticism regarding my approach to the problem.

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  • What helpful tactics have you employed to keep your development team on-track?

    - by Ed Altorfer
    I realize that this is a subjective question, so I've marked it as a community wiki. I think that it is pretty specific to programming teams, though, so I've posted it here as opposed to somewhere else. I'm leading a small game development team (four people) as a side project. We are a disjoint team, with everyone in different places, but we do have some of the mainstays of an organized team. Source Control Continuous Integration Bug Tracking Document Workspace Regular Meetings Calendar / Schedule How do you keep your small, disjoint teams on-track? I tend to agree with Joel's opinion about when and how to micromanage and know that my team is motivated, but it can be easy to fall off-course when everyone isn't connected in a physical way and doesn't see what other people on the team are doing. Suggestions, feedback, or criticisms are welcome! Edit: I'm managing the team; I'm not looking for automated tools or anything to do my job for me, just ideas for approach or process that might help everyone feel more "connected" and involved.

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  • Hook for redraw event in Blackberry

    - by Bendlas
    Is there a way to add a redraw callback to a live screen object, i.e. not via inheritance? Reasoning: I want to draw an overlay from an extension for widget sdk (substituting defunct position:absolute), so the screen is created by the bbwp stub. I can get it by Ui.getUiEngine().getActiveScreen() and draw on it quite nicely, but I need a way to redraw when appropriate. Note: I've abandoned the approach to push the overlay as a screen, because i couldn't make it transparent / find a way to pass events through.

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  • Choosing a plotting library for web/browser application

    - by Goro
    Hello, I am looking for a plotting/graphing library (mostly to do line plots) for my application. I have been looking at JavaScript APIs (like Google's) but I found them to be slowing down things at client side (I am plotting a quite large number of points). I also found that with client-side libraries, the performance was quite varied depending on the user's computer. With moving to a server-side library I would cut down on this variance, and would have more control over data flow (my data is in a MySQL database). I have then looked at some PHP-based plotting libraries, but a lot of them seem to be "forgotten" (no new version for years). I have been eying pChart, but it has not had an update in almost two years. First, what would you recommend: server-side or client-side approach? Second, what library would you recommend. Paid libraries are definitely an option, as I don't mind paying for quality software that would cut down on my development time. Thanks,

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  • How to suppress a group header based on running-count results?

    - by Sarah
    Hi I'm trying to suppress a group header when there are no detailed results in another following group. I have added a manual running count total which is showing correct numbers (such as 0 when no records show on the report). I've taken this approach since I have various items suppressed within the detailed section and don't want them as part of the count. I'm trying to say in the header not to shown the header if there are no corresponding records showing in the detailed section. But, it's not working. When I say suppress if the display count is 0, it suppresses all of the headers instead of just the ones that need to be displayed. HOW CAN I FIX THIS? THANKS... Sarah

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  • Efficiency of while(true) ServerSocket Listen

    - by Submerged
    I am wondering if a typical while(true) ServerSocket listen loop takes an entire core to wait and accept a client connection (Even when implementing runnable and using Thread .start()) I am implementing a type of distributed computing cluster and each computer needs every core it has for computation. A Master node needs to communicate with these computers (invoking static methods that modify the algorithm's functioning). The reason I need to use sockets is due to the cross platform / cross language capabilities. In some cases, PHP will be invoking these java static methods. I used a java profiler (YourKit) and I can see my running ServerSocket listen thread and it never sleeps and it's always running. Is there a better approach to do what I want? Or, will the performance hit be negligible? Please, feel free to offer any suggestion if you can think of a better way (I've tried RMI, but it isn't supported cross-language. Thanks everyone

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  • sproutcore or cappucino for web app development?

    - by swami
    I recently found out about the sproutcore and capuccino frameworks for web app development as proper MVC approach to creating Desktop-like applications. As far as I could understand, the main difference between the two frameworks is that Cappucino abstracts away the HTML+CSS+Javascript to Objective-J - a new programming language developed be the creators of Capuccino that adds OO capabilities to Javascript, whereas Sproutcore uses HTML5,CSS,Javascript. After lots of pondering, I thought it's probably best to go with technologies we know, so I downloaded the Sproutcore tools and did the tutorials, and I have to say I was very impressed. Just the kind of thing I was looking for, for organizing a complex web app. However, I just stumbled across the following link: http://charlesjolley.sys-con.com/node/1341228 in which Charles Jolley (the creator of Sproutcore) syas that he's tired of waiting for the HTML5 and ECMAScript5 specs to get finalized, and announces that from version 1.1 onwards they will be switching to Objective-J ! So now the question is - what will actually differentiate Sproutcore and Capuccino - and which one should I choose now? Kind Regards Swami

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  • Issue in exec method

    - by mukul sharma
    Hi all, I am a having two python files file1.py and file2.py. I am using exec() to get the method/Variables defined in the file2.py. file1.py have a class as given below class one: def init(self): self.HOOK = None exec(file2.py) self.HOOK = Generate ### call the hook method #### self.HOOK() file2.py looks like as (There is no class define in file2.py) def Generate() do 1 do 2 Hello() def hello() print "hello" Now the problem is as When i run script it is giving a error global name Hello not found. If i remove Hello() from Generate method in file2.py then its work fine. I cant use import file2.py in file1.py,because in file2.py the only one method name (Generate) is fix (its taken as requirement). So apart from Genarate method user can define any method and can call this in generate method, because this approach is not working so i have to write whole code into generate method only and code is also repetitive. Any help is really appreciable...

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  • Integrating JSF with Spring

    - by Abel Morelos
    I haven't implemented any code, I'm still working the overall architecture for a new application and this going to be the first time I use JSF+Spring. I need to put web services in front of the Spring service beans (business logic tier) since these beans could be accessed by other applications besides the presentation tier. While defining the different layers or tiers for the application, I feel unsure about how to integrate JSF (the presentation tier) with Spring (the business tier in this application). I'm considering to define some sort of common tier or service tier in order to provide the glue code for JSF and Spring, but before that I want to hear from others what have they done or if they have used other frameworks to help with the glue code for this scenario (I already checked Spring MVC/Spring Faces, but I'm not sure if that's what I need since I'm thinking of this application more like JSF-centric than Spring-centric, but maybe you could help me about considering another approach). Thanks in advance.

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  • Graphical database monitoring tool for debugging

    - by salle55
    I would love a tool that in real-time showed changes in a set of predefined tables in a graphical way, for example different colors on fields that has changed value, added records, deleted records etc. I don't want a list of all transactions (like SQL Server Profiler), instead a clever visualized more graphical approach where you can get a great overview if you are just monitoring a few tables. I realize the visualization would be hard if there is a lot of transactions against the database, but with monitoring on a few tables and a single session during debugging it would be possible. Does something like this exist? I think it would be great for debugging! Preferably for SQL Server and/or MySQL.

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