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• Python pattern search in a string

  - by Hulk

  In python if a string contains the following, print valid_str The output of this is Record is positive in tone: It emphasizes "what a child can do and his or her achievements, as opposed to what he or she cannot do," explains the It is useful for progress and achievements during office conferences How to search for the pattern It is useful in the above string and if not found return something. Thanks..

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• Is the provider pattern an implementation of IOC?

  - by blahblah

  Is the provider pattern an implementation of IOC? If not, why not? (reading through martin fowlers article on ioc)

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• Activator.CreateInstance vs Factory Pattern

  - by Heka

  What is the difference between Activator.CreateInstance and factory? Can they be used interchangeably? Or stil do we need a factory pattern?

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• javascript regex pattern concatenate with variable

  - by chazzuka

  How to create regex pattern which is concatenate with variable, something like this: var test ="52"; var re = new RegExp("/\b"+test+"\b/"); alert('51,52,53'.match(re)); Thanks

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• ASP.net Intergation Pattern - examples

  - by nettguy

  Recently lot of interviewers are asking "What are the integration patterns are you familiar with?". I know design patterns,what is integration pattern then?

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• Getting pattern string from java SimpleDateFormat

  - by D Lawson

  I have a SimpleDateFormat object that I retrieve from some internationalization utilities. Parsing dates is all fine and good, but I would like to be able show a formatting hint to my users like "MM/dd/yyyy". Is there a way to get the formatting pattern from a SimpleDateFormat object?

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• How to implement MVP pattern for a tabcontrol?

  - by John_Sheares

  I have an application that has a tabcontrol with 5 tabpages of information that user interacts with. Also, there are contextual menus and toolbars for editing and formatting the information. Do I create a different view & presenter for each tab page or the tabcontrol iteself? How do I apply the pattern to the toolbars and menus that can interact with any of the tabs?

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• Is it good, that every PHP class implements a Singleton pattern

  - by Sbioko

  Hello, is it good, that every PHP class implements a Singleton pattern? I think, it will be less memory usage because of it. Is it right opinion? Thanks!

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• DI and Singleton Pattern in one implementation

  - by Tony

  I want to refactor some code using the Windsor IOC/DI framework, but my issue is that I have some Singleton classes and Factory pattern classes and I am not sure that one can implement a Singleton or Factory using DI. Has anyone any ideas if that is possible and how?

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• Name the pattern - Create, Set, Execute, Destroy?

  - by Seb Nilsson

  I somewhere heard that the .NET Framework was built around specific pattern, which they tried to uphold as much as possible. var rsa = new RSACryptoServiceProvider(); // Create rsa.ImportParameters(GetParameters()); // Set byte[] encrypted = rsa.Encrypt(data, true); // Execute // Destroyed by garbage-collector Are there any variants of this? What are the general pros and cons?

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• pattern to transfer search model to dao

  - by zeroed

  We have a dao as a project (jar file). Clients use its interfaces and factories to operate with database. Using standard CRUD operations, dao allows you to search an entity by some search criteria. What is the best way to represent this criteria? Is transfer object appropriate pattern in this situation? How should client create SearchModel instance? Please, share. Regards.

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• Decorator Design Pattern - Not Possible

  - by Lennie

  Hi, This is more a design question... You can't do a decorate design pattern if: 1) The object is marked "sealed" meaning you can't extend from it. 2) or you want to override a method but its not virtual. What can you do then? Taken that you can't change the class source code if you don't have the source code (like a 3rd party library).

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• Design pattern to separate messages from actual process.

  - by Manish Gupta

  I am having a C# application to sync data between PC and palm devices. There are codes written like below: showMessage("synchronizing Table1"); Sync(destTable1,sourceTable1); Sync(destTable2,sourceTable2); showMessage("synchronizing Table2"); // more code How do I separate the actual process of synchronizing from displaying message? Which design pattern to follow? Thanks in advance...

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• Acquisition Design pattern

  - by Tony

  Anybody any idea where I can find details about this pattern? It is used in relation to threading. C++

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• Pattern for creating a database schema using JDBC

  - by Space_C0wb0y

  I have a Java-application that loads data from a legacy file format into an SQLite-Database using JDBC. If the database file specified does not exist, it is supposed to create a new one. Currently the schema for the database is hardcoded in the application. I would much rather have it in a separate file as an SQL-Script, but apparently there is now easy way to execute an SQL-Script though JDBC. Is there any other way or a pattern to achieve something like this?

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• Implementing the factory design pattern using metaclasses in python

  - by noam

  I found a lot of links on metaclasses, and most of them mention that they are useful for implementing factory methods. Can you show me an example of using metaclasses to implement the design pattern?

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• Javascript plugins design pattern like jQuery

  - by Marco Demaio

  Could someone write down a very simple basic example in javascript to conceptualize (and hopefully make me understand) how the jQuery plugin design pattern is done and how it works? I'm not interested in how creating plugin for jQuery (so no jQuery code here at all). I'm interested in a simple explanation (maybe with a bit of Javascript code) to explain how it is done the plugin concept. Plz do not reply me to go and read jQuery code, I tried, but I it's too complex, otherwise I would have not post a question here.

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• why grouping Design pattern in three parts?

  - by Phsika

  Design pattern can separeted 3 important part: "http://www.dofactory.com/Patterns/Patterns.aspx". why three part? Creational Patterns Structural Patterns Behavioral Patterns How can i separete it into three part? According to what?

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• Problem creating a webpage in OOP pattern?

  - by Starx

  I want to develop a website in OOP pattern, but I am stuck in a point whether I need to inherit from multiple classes. For example I have a main class "index" this class has several methods which need to inherited from other classes and I have created seperate classes for it like class "banner", class "content", class "footer" Not only this but class "content" has several methods to be inherited from other classes like class "gallery", class "news", etc I found out that multiple inheritance is not allowed, and using interface I cannot write codes in its methods, so how can i achieve a solution for this problem.

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• Using a regex pattern to find revision numbers from a svn merge

  - by zyzy

  svn diff -rXX:HEAD Will give me a format like this, if there has been a merge between those revisions: Merged /<branch>:rXXX,XXX-XXX or Merged /<branch>:rXXX I'm not very familiar with regex and am trying to put together a pattern which will match all the numbers (merged revision numbers) AFTER matching the "Merged /branch:r" part. So far I have this to match the first part: [Mm]erged.*[a-zA-Z]:r Thanks in adv. for the help :)

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• example for Singleton pattern

  - by JavaUser

  Hi, Please give me a real time example for singleton pattern . Different threads accessing a shared file is singleton or not ? Since each thread access the same instance of the file not individual instances of their own .

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• SQl Server error handling pattern

  - by Patrick Honorez

  Hi all. I am not an expert on SQl Server. Is this a valid pattern for handling errors in a batch of SELECT, INSERT...in SQl SERVER ? (I use v.2008) BEGIN TRANSACTION BEGIN TRY -- statement 1 -- statement 2 -- statement 3 COMMIT TRANSACTION END TRY BEGIN CATCH ROLLBACK TRANSACTION END CATCH Thanks

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• Sed. How change line next to specific pattern

  - by kirill

  My file is: DIVIDER Sometext_string many lines of random text DIVIDER Another_Sometext_string many many lines DIVIDER Third_sometext_string .... How change lines following DIVIDER pattern Result must be: DIVIDER [begin]Sometext_string[end] many lines of random text DIVIDER [begin]Another_Sometext_string[end] many many lines DIVIDER [begin]Third_sometext_string[end] ....

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• Finding all CLASSPATH resources matching a pattern

  - by binil

  I want to read a bunch of text files, by loading them as resources using the context classloader. URL url = Thread.currentThread() .getContextClassloader() .getResource("folder/foo.txt"); Is there some way to get a list of resources whose names match a given pattern? For eg: URL[] matchingUrls = someLibrary.getMatchingResources("folder/*.txt"); Libraries like Spring can scan the classpath to find classes with a given annotation, so I am wondering if there something similar to load a bunch of resources.

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• Is Core Data using the Ghost pattern?

  - by dontWatchMyProfile

  All this fault and faulting stuff appears to look pretty much like the Ghost pattern. Is that the same thing?

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