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Auto-hydrate your objects with ADO.NET

- by Jake Rutherford

Recently while writing the monotonous code for pulling data out of a DataReader to hydrate some objects in an application I suddenly wondered "is this really necessary?" You've probably asked yourself the same question, and many of you have: - Used a code generator - Used a ORM such as Entity Framework - Wrote the code anyway because…

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Using ConcurrentQueue for thread-safe Performance Bookkeeping.

- by Strenium

Just a small tidbit that's sprung up today. I had to book-keep and emit diagnostics for the average thread performance in a highly-threaded code over a period of last X number of calls and no more. Need of the day: a thread-safe, self-managing stats container. Since .NET 4.0 introduced new thread-safe 'Collections.Concurrent' objects and…

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Java JPA Hibernate Spring @EntityListeners throws org.springframework.dao.DataIntegrityViolationException

- by user

I am using Spring 3 with Hibernate 3. I would like to update the last modification date automatically when an entity is updated. Below is the sample code: HibernateConfig: @Configuration public class HibernateConfig { @Bean public DataSource dataSource() throws Exception { DriverManagerDataSource dataSource = new…

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.NET: Serializing object to a file from a 3rd party assembly

- by MacGyver

Below is a link that describes how to serialize an object. But it requires you implement from ISerializable for the object you are serializing. What I'd like to do is serialize an object that I did not define--an object based on a class in a 3rd party assembly (from a project reference) that is not implementing ISerializable. Is…

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With Eclipselink/JPA, can I have a Foreign Composite Key that shares a field with a Primary Composit

- by user107924

My database has two entities; Company and Person. A Company can have many People, but a Person must have only one Company. The table structure looks as follows. COMPANY ---------- owner PK comp_id PK c_name PERSON ---------------- owner PK, FK1 personid PK comp_id FK1 p_fname p_sname It has occurred to me that I could…

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How to write specs with MSpec for code that changes Thread.CurrentPrincipal?

- by Dan Jensen

I've been converting some old specs to MSpec (were using NUnit/SpecUnit). The specs are for a view model, and the view model in question does some custom security checking. We have a helper method in our specs which will setup fake security credentials for the Thread.CurrentPrincipal. This worked fine in the old unit tests,…

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JSTL c:forEach causes @ViewScoped bean to invoke @PostConstruct on every request

- by Nitesh Panchal

Hello, Again i see that the @PostConstruct is firing every time even though no binding attribute is used. See this code :- <?xml version='1.0' encoding='UTF-8' ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html…

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InputText inside Primefaces dataTable is not refreshed

- by robson

I need to have inputTexts inside datatable when form is in editable mode. Everything works properly except form cleaning with immediate="true" (without form validation). Then primefaces datatable behaves unpredictable. After filling in datatable with new data - it still stores old values. Short example:…

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Yet another bug of JSF?

- by Nitesh Panchal

Hello, Again i see that the @PostConstruct is firing every time even though no binding attribute is used. See this code :- <?xml version='1.0' encoding='UTF-8' ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">…

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Delete Stored Proc Deadlock in Sql Server

- by Chris

I am having the following deadlock in SQL Server 2005 with a specific delete stored proc and I can't figure out what I need to do to remedy it. <deadlock-list> <deadlock victim="processf3a868"> <process-list> <process id="processcae718" taskpriority="0" logused="0"…

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Proguard and two projects using the same android library. broadcasting. ClassNotFoundException

- by trololo

The problem:I have got 2 apps. The interact with each other via broadcasting. I have parcelable class in the android library (they send content of class in the library). So after using Proguard I have got ClassNotFondException. How to solve it? 07-03 02:13:51.832: E/AndroidRuntime(6801):…

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Reading serialised object from file

- by nico

Hi everyone. I'm writing a little Java program (it's an ImageJ plugin, but the problem is not specifically ImageJ related) and I have some problem, most probably due to the fact that I never really programmed in Java before... So, I have a Vector of Vectors and I'm trying to save it to a…

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Why does @PostConstruct callback fire every time even though bean is @ViewScoped? JSF

- by Nitesh Panchal

Hello, I am using datatable on page and using binding attribute to bind it to my backing bean. This is my code :- <?xml version='1.0' encoding='UTF-8' ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">…

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Hibernate - strange order of native SQL parameters

- by Xorty

Hello, I am trying to use native MySQL's MD5 crypto func, so I defined custom insert in my mapping file. <hibernate-mapping package="tutorial"> <class name="com.xorty.mailclient.client.domain.User" table="user"> <id name="login" type="string"…

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@OneToMany association joining on the wrong field

- by april26

I have 2 tables, devices which contains a list of devices and dev_tags, which contains a list of asset tags for these devices. The tables join on dev_serial_num, which is the primary key of neither table. The devices are unique on their ip_address field and they…

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Import Data from Excel sheet to DB Table through OAF page

- by PRajkumar

1. Create a New Workspace and Project File > New > General > Workspace Configured for Oracle Applications File Name – PrajkumarImportxlsDemo Automatically a new OA Project will also be created Project Name -- ImportxlsDemo Default…

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Using Oracle Proxy Authentication with JPA (eclipselink-Style)

- by olaf.heimburger

Security is a very intriguing topic. You will find it everywhere and you need to implement it everywhere. Yes, you need. Unfortunately, one can easily forget it while implementing the last mile. The Last Mile In a multi-tier application it is a common practice…

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Update records in OAF Page

- by PRajkumar

1. Create a Search Page to Create a page please go through the following link https://blogs.oracle.com/prajkumar/entry/create_oaf_search_page 2. Implement Update Action in SearchPG Right click on ResultTable in SearchPG > New > Item …

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Calculating the Size (in Bytes and MB) of a Oracle Coherence Cache

- by Ricardo Ferreira

The concept and usage of data grids are becoming very popular in this days since this type of technology are evolving very fast with some cool lead products like Oracle Coherence. Once for a while, developers need an programmatic way to calculate…

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.NET WebAPI Serialization k_BackingField Nastiness

- by Micah

When i serialize the following: [Serializable] public class Error { public string Status { get; set; } public string Message { get; set; } public string ErrorReferenceCode { get; set; } public List<FriendlyError> Errors { get; set;…

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Reuse classes and objects for both WCF and non-WCF

- by joebeazelman

I have several classes such as Order, Customer, etc. These classes serve for holding data and nothing more. I want to be able to reuse these classes in other projects in the future, but for some reason I don't quite understand, WCF forces me to decorate…

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Using System.Security.SecureString in .NET Remoting App?

- by Beaner

I am developing a Remoting application where a client looks up store specific information to login to a web server. It sets the user name and passwords in a class that stores the properties as System.Security.SecureString. I then try to pass the class…

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.net XML serialization: how to specify an array's root element and child element names

- by Jeremy

Consider the following serializable classes: class Item {...} class Items : List<Item> {...} class MyClass { public string Name {get;set;} public Items MyItems {get;set;} } I want the serialized output to look like: <MyClass> …

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What is the most simple implementation of IDynamicMetaObjectProvider?

- by Néstor Sánchez A.

Hi, I have this scenario... 1.- I'm providing a "Dynamic Table" for wich users can define Fields. Each Dynamic Table will have as many rows/records as needed, but the Field definitions are centralized. 2.- My Dynamic Row/Record class was inherited…

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DotNetOpenAuth: Mock ClaimsResponse

- by Pickels

Hello, I was wondering how I can mock the ClaimseReponse class in DotNetOpenAuth? This is the class(remove a few properties): [Serializable] public sealed class ClaimsResponse : ExtensionBase, …

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