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• NHibernate and objects with value-semantics

  - by Groo

  Problem: If I pass a class with value semantics (Equals method overridden) to NHibernate, NHibernate tries to save it to db even though it just saved an entity equal by value (but not by reference) to the database. What am I doing wrong? Here is a simplified example model for my problem: Let's say I have a Person entity and a City entity. One…

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• Microsoft and jQuery

  - by Rick Strahl

  The jQuery JavaScript library has been steadily getting more popular and with recent developments from Microsoft, jQuery is also getting ever more exposure on the ASP.NET platform including now directly from Microsoft. jQuery is a light weight, open source DOM manipulation library for JavaScript that has changed how many developers think about…

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• Quick guide to Oracle IRM 11g: Classification design

  - by Simon Thorpe

  Quick guide to Oracle IRM 11g indexThis is the final article in the quick guide to Oracle IRM. If you've followed everything prior you will now have a fully functional and tested Information Rights Management service. It doesn't matter if you've been following the 10g or 11g guide as this next article is common to both. ContentsWhy this is…

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• Nepotism In The SQL Family

  - by Rob Farley

  There’s a bunch of sayings about nepotism. It’s unpopular, unless you’re the family member who is getting the opportunity. But of course, so much in life (and career) is about who you know. From the perspective of the person who doesn’t get promoted (when the family member is), nepotism is simply unfair; even more so when the promoted…

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• “Query cost (relative to the batch)” <> Query cost relative to batch

  - by Dave Ballantyne

  OK, so that is quite a contradictory title, but unfortunately it is true that a common misconception is that the query with the highest percentage relative to batch is the worst performing.  Simply put, it is a lie, or more accurately we dont understand what these figures mean. Consider the two below simple queries: SELECT * FROM…

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• SQL SERVER – Simple Demo of New Cardinality Estimation Features of SQL Server 2014

  - by Pinal Dave

  SQL Server 2014 has new cardinality estimation logic/algorithm. The cardinality estimation logic is responsible for quality of query plans and majorly responsible for improving performance for any query. This logic was not updated for quite a while, but in the latest version of SQL Server 2104 this logic is re-designed. The new logic…

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• Who Makes a Good Product Owner

  - by Robert May

  In general, the best product owners are those that care passionately about the customer of the product.  Note that I didn’t say about the product itself.  Actually, people that only care about the product, generally do not make good product owners.  Products only matter in relationship to their customers.  If a…

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• When is your interview?

  - by Rob Farley

  Sometimes it’s tough to evaluate someone – to figure out if you think they’d be worth hiring. These days, since starting LobsterPot Solutions, I have my share of interviews, on both sides of the desk. Sometimes I’m checking out potential staff members; sometimes I’m persuading someone else to get us on board for a project.…

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• fail2ban custom action to permanent ban IPs from China

  - by John Magnolia

  When a IP address gets banned how can I check if the banned IP address is from China. If yes, then add it to the permanent ban list. I have found this nice guide which write the banned IP to file. Reason: I am getting a lot of brute force attacks from China daily, thankfully fail2ban is helping restrict this although…

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• What Counts For a DBA: Replaceable

  - by Louis Davidson

  Replaceable is what every employee in every company instinctively strives not to be. Yet, if you’re an irreplaceable DBA, meaning that the company couldn’t find someone else who could do what you do, then you’re not doing a great job. A good DBA is replaceable. I imagine some of you are already reaching for the lighter…

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• Incentivizing Work with Development Teams

  - by MarkPearl

  Recently I saw someone on twitter asking about incentives and if anyone had past experience with incentivizing work. I promised to respond with some of the experiences I have had in the past so here goes... **Disclaimer** - these are my experiences with incentives, generally in software development - in some other…

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• Class design issue

  - by user2865206

  I'm new to OOP and a lot of times I become stumped in situations similar to this example: Task: Generate an XML document that contains information about a person. Assume the information is readily available in a database. Here is an example of the structure: <Person> <Name>John Doe</Name> …

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• MVVM Light Toolkit - RelayCommands, DelegateCommands, and ObservableObjects

  - by DanM

  I just started experimenting with Laurent Bugnion's MVVM Light Toolkit. I think I'm going to really like it, but I have a couple questions. Before I get to them, I need to explain where I'm coming from. I currently use a combination of Josh Smith's MVVM Foundation and another project on Codeplex called MVVM…

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• Use DataSource in DataFormWebPart

  - by Bryan Shen

  I'm writing a custom web part that extends DataFormWebPart. public class MyCustomWebPart : DataFormWebPart{ // other methods public override void DataBind() { XmlDataSource source = new XmlDataSource() { Data = @" …

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• How to Use DataSource Property in DataFormWebPart

  - by Bryan Shen

  I'm writing a custom web part that extends DataFormWebPart. public class MyCustomWebPart : DataFormWebPart{ // other methods public override void DataBind() { XmlDataSource source = new XmlDataSource() { Data = @" …

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• Using Hibernate's ScrollableResults to slowly read 90 million records

  - by at

  I simply need to read each row in a table in my MySQL database using Hibernate and write a file based on it. But there are 90 million rows and they are pretty big. So it seemed like the following would be appropriate: ScrollableResults results = session.createQuery("SELECT person FROM Person…

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• How to generating comments in hbm2java created POJO?

  - by jschoen

  My current setup using hibernate uses the hibernate.reveng.xml file to generate the various hbm.xml files. Which are then turned into POJOs using hbm2java. We spent some time while designing our schema, to place some pretty decent descriptions on the Tables and there columns. I am able to pull…

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• Entity Framework lazy loading doesn't work from other thread

  - by Thomas Levesque

  Hi, I just found out that lazy loading in Entity Framework only works from the thread that created the ObjectContext. To illustrate the problem, I did a simple test, with a simple model containing just 2 entities : Person and Address. Here's the code : private static void…

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• Validation Summary for Collections

  - by Myster

  Hi All, EDIT: upgraded this question to MVC 2.0 With asp.net MVC 2.0 is there an existing method of creating Validation Summary that makes sense for models containing collections? If not I can create my own validation summary Example Model: public class GroupDetailsViewModel…

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• Rails - How can I display nicely indented JSON?

  - by sa125

  Hi - I have a controller action that returns JSON data for api purposes, and plenty of it. I want to be able to inspect it in the browser, and have it nicely indented for the viewer. For example, if my data is data = { :person => { :id => 1, :name => "john doe",…

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• RESTful idempotence

  - by DutrowLLC

  I'm designing a RESTful web service utilizing ROA(Resource oriented architecture). I'm trying to work out an efficient way to guarantee idempotence for PUT requests that create new resources in cases that the server designates the resource key. From my understanding, the…

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• C# COM objects with VB6/asp error

  - by Ken

  I'm trying to expose a C# class library via COM so that I can use it in a classic asp web site. I've used sn - k, regasm and gacutil. About all I can do now though is echo back strings. Methods which take Class variables as input are not working for me. ie my test…

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• How to generate comments in hbm2java created POJO?

  - by jschoen

  My current setup using hibernate uses the hibernate.reveng.xml file to generate the various hbm.xml files. Which are then turned into POJOs using hbm2java. We spent some time while designing our schema, to place some pretty decent descriptions on the Tables and there…

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• XmlSerializer equivalent of IExtensibleDataObject

  - by demoncodemonkey

  With DataContracts you can derive from IExtensibleDataObject to allow round-tripping to work without losing any unknown additional data from your XML file. I can't use DataContract because I need to control the formatting of the output XML. But I also need to be…

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• Using Apache Camel how do I unmarshal my deserialized object that comes in through a CXF Endpoint?

  - by ScArcher2

  I have a very simple camel route. It starts with a CXF Endpoint exposed as a web service. I then want to convert it to xml and call a method on a bean. Currently i'm getting a CXF specific object after the web service call. How do I take my serialized object out…

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