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  • Why doesn't Gradle include transitive dependencies in compile / runtime classpath?

    - by Francis Toth
    I'm learning how Gradle works, and I can't understand how it resolves a project transitive dependencies. For now, I have two projects : projectA : which has a couple of dependencies on external libraries projectB : which has only one dependency on projectA No matter how I try, when I build projectB, gradle doesn't include any projectA dependencies (X and Y) in projectB's compile or runtime classpath. I've only managed to make it work by including projectA's dependencies in projectB's build script, which, in my opinion does not make any sense. These dependencies should be automatically attached to projectB. I'm pretty sure I'm missing something but I can't figure out what. I've read about "lib dependencies", but it seems to apply only to local projects like described here, not on external dependencies. Here is the build.gradle I use in the root project (the one that contains both projectA and projectB) : buildscript { repositories { mavenCentral() } dependencies { classpath 'com.android.tools.build:gradle:0.3' } } subprojects { apply plugin: 'java' apply plugin: 'idea' group = 'com.company' repositories { mavenCentral() add(new org.apache.ivy.plugins.resolver.SshResolver()) { name = 'customRepo' addIvyPattern "ssh://.../repository/[organization]/[module]/[revision]/[module].xml" addArtifactPattern "ssh://.../[organization]/[module]/[revision]/[module](-[classifier]).[ext]" } } sourceSets { main { java { srcDir 'src/' } } } idea.module { downloadSources = true } // task that create sources jar task sourceJar(type: Jar) { from sourceSets.main.java classifier 'sources' } // Publishing configuration uploadArchives { repositories { add project.repositories.customRepo } } artifacts { archives(sourceJar) { name "$name-sources" type 'source' builtBy sourceJar } } } This one concerns projectA only : version = '1.0' dependencies { compile 'com.company:X:1.0' compile 'com.company:B:1.0' } And this is the one used by projectB : version = '1.0' dependencies { compile ('com.company:projectA:1.0') { transitive = true } } Thank you in advance for any help, and please, apologize me for my bad English.

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  • Which web algorithms book to get ?

    - by fjxx
    I am currently undecided between which of the following web algorithms book to buy: 1) Algorithms of the Intelligent web by Marmanis 2) Collective Intelligence by Alag Both feature code in Java; Marmanis' book delves deeper into the core algorithms while Alag's book discusses more APIs including WEKA. I have already read Programming Collective Intelligence by Segaran and enjoyed it. Any comments on these books or any other recommendations are welcome.

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  • Coding in large chunks ... Code verification skills

    - by Andrew
    As a follow up to my prev question: What is the best aproach for coding in a slow compilation environment To recap: I am stuck with a large software system with which a TDD ideology of "test often" does not work. And to make it even worse the features like pre-compiled headers/multi-threaded compilation/incremental linking, etc is not available to me - hence I think that the best way out would be to add the extensive logging into the system and to start "coding in large chunks", which I understand as code for a two-three hours first (as opposed to 15-20 mins in TDD) - thoroughly eyeball the code for a 15 minutes and only after all that do the compilation and run the tests. As I have been doing TDD for a quite a while, my code eyeballing / code verification skills got rusty (you don't really need this that much if you can quickly verify what you've done in 5 seconds by running a test or two) - so I am after a recommendations on how to learn these source code verification/error spotting skills again. I know I was able to do that easily some 5-10 years ago when I din't have much support from the compiler/unit testing tools I had until recently, thus there should be a way to get back to the basics.

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  • What would a start-to-finish development procedure would look like?

    - by Tom Busby
    I have a problem that my developer friends share. We recently left university and find ourselves either end up working for a firm which already has good procedures (TDD, automated testing, proper agile development, etc) or working for a firm which doesn't. I want to learn some of these vital skills and get a grip on what a complete start-to-finish development procedure would look like. What differences would be between a smaller project, and a long term project with many team members.

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  • clear explanation sought: throw() and stack unwinding

    - by Jerry Gagelman
    I'm not a programmer but have learned a lot watching others. I am writing wrapper classes to simplify things with a really technical API that I'm working with. Its routines return error codes, and I have a function that converts those to strings: static const char* LibErrString(int errno); For uniformity I decided to have member of my classes throw an exception when an error is encountered. I created a class: struct MyExcept : public std::exception { const char* errstr_; const char* what() const throw() {return errstr_;} MyExcept(const char* errstr) : errstr_(errstr) {} }; Then, in one of my classes: class Foo { public: void bar() { int err = SomeAPIRoutine(...); if (err != SUCCESS) throw MyExcept(LibErrString(err)); // otherwise... } }; The whole thing works perfectly: if SomeAPIRoutine returns an error, a try-catch block around the call to Foo::bar catches a standard exception with the correct error string in what(). Then I wanted the member to give more information: void Foo::bar() { char adieu[128]; int err = SomeAPIRoutine(...); if (err != SUCCESS) { std::strcpy(adieu,"In Foo::bar... "); std::strcat(adieu,LibErrString(err)); throw MyExcept((const char*)adieu); } // otherwise... } However, when SomeAPIRoutine returns an error, the what() string returned by the exception contains only garbage. It occurred to me that the problem could be due to adieu going out of scope once the throw is called. I changed the code by moving adieu out of the member definition and making it an attribute of the class Foo. After this, the whole thing worked perfectly: a try-call block around a call to Foo::bar that catches an exception has the correct (expanded) string in what(). Finally, my question: what exactly is popped off the stack (in sequence) when the exception is thrown in the if-block when the stack "unwinds?" As I mentioned above, I'm a mathematician, not a programmer. I could use a really lucid explanation of what goes onto the stack (in sequence) when this C++ gets converted into running machine code.

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  • Haskell vs Erlang for web services

    - by Zachary K
    I am looking to start an experimental project using a functional language and am trying to decide beween Erlang and Haskell, and both have some points that I really like. I like Haskell's strong type system and purity. I have a feeling it will make it easier to write really reliable code. And I think that the power of haskell will make some of what I want to do much easier. On the minus side I get the feeling that some of the Frameworks for doing web stuff on Haskell such as Yesod are not as advanced as their Erlang counter parts. I rather like the Erlang approach to threads and to fault tollerence. I have a feeling that the scalability of Erlang could be a major plus. Which leeds to to my question, what has people's exerience been in implementing web application backends in both Haskell and Erlang. Are there packages for Haskell to provide some of the lightweight threads and actors that one has in Erlang?

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  • Quality Assurance & Quality Control = verification & validation?

    - by user970696
    According to a book (page below), reviewing e.g. design (verification activity) is quality assurance. I would not agree, I would say its quality control because we are checking the conformance to specification, plans and detecting deviations (defects) as we do in quality control. But what would be an example of QA then? Could you give me a clear example that proves/disproves what is this book saying? Software Testing: Srinisvasan Desikan, Gopalaswamy Ramesh

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  • What rules of etiquette should be followed at software conferences?

    - by shemnon
    Whether as an attendee, a speaker, or a vendor I wanted to know what the unspoken rules of etiquette are at software conferences. Other than the blindingly obvious ones (like don't assault the winner of the iPad raffle because you didn't win). What are some of the rules that should be followed, even if you feel they don't need to be said? i.e. what t-shirts are acceptable (like from competing technologies or conferences), playing Wii at vendor booths at Microsoft sponsored conferences, cancelling sessions due to low (one hand) attendance, showering, 'Attendees of Size' spilling over into your seat, talking and eating during sessions or keynotes, etc. Please, one rule per answer, with the summary in bold leading the answer. Post multiple answers if you have multiple rules.

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  • Visualize flowchart diagram with multiple end symbols

    - by platzhirsch
    I am looking for a standardize way to visualize the following hierarchical logic: The state of the thread is represented by the answers to the hierarchical set of question You can read this listing like a flowchart, you iterate over the questions decide, go one step deeper and so on. Therefore I thought the best way to visualize it, using a flowchart. The problem is, in this hierarchical set it is possible to end in more than one state and its totally valid. I have never seen a flowchart where you can enter more than one state. Is it still possible and I am missing the right symbol to present this logic or are flowchart not fitting anyway? What other graphical representation could I use, is there something fitting in UML? A non-deterministic state machine seems not to be intuitive enough, transfering it into a deterministic state machine would result in to many states, and so on.

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  • Relationship between TDD and Software Architecture/Design

    - by Christopher Francisco
    I'm new to TDD and have been reading the theory since applying it is more complicated than it sounds when you're learning by yourself. As far as I know, the objective is to write test cases for each requirement and run the test so it fails (to prevent a false positive). Afterward, you should write the minimum amount of code that can pass the test and move to the next one. That being said, is it true that you get a fast development, but what about the code itself? this theory makes me think you are not considering things like abstraction, delegation of responsibilities, design patterns, architecture and others since you're just writing "the minimum amount of code that can pass the test". I know I'm probably wrong because if this were true, we'd have a lot of crappy developers with poor software architecture and documentation so I'm asking for a guide here, what's the relationship between TDD and Software Architecture/Design?

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  • Misunderstanding Scope in JavaScript?

    - by Jeff
    I've seen a few other developers talk about binding scope in JavaScript but it has always seemed to me like this is an inaccurate phrase. The Function.prototype.call and Function.prototype.apply don't pass scope around between two methods; they change the caller of the function - two very different things. For example: function outer() { var item = { foo: 'foo' }; var bar = 'bar'; inner.apply(item, null); } function inner() { console.log(this.foo); //foo console.log(bar); //ReferenceError: bar is not defined } If the scope of outer was really passed into inner, I would expect that inner would be able to access bar, but it can't. bar was in scope in outer and it is out of scope in inner. Hence, the scope wasn't passed. Even the Mozilla docs don't mention anything about passing scope: Calls a function with a given this value and arguments provided as an array. Am I misunderstanding scope or specifically scope as it applies to JavaScript? Or is it these other developers that are misunderstanding it?

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  • Micro QR Code Generator with minimal error correction

    - by Florian Peschka
    I am searching a Micro QR Code Generator that fulfills the following requirements: At least 20 characters encoded Minimal error correction (required to get the 20 characters stuffed in) I already searched google, but it seems all micro qr generators automatically use maximum error correction, which is very unhandy for my task, as we need the 20 characters completety. I can't use standard QR because there are certain requirements that need the code to be smaller than a certain dimension when printed... I hope someone can help me. PS: I'm not sure that this is the right board to post this question on, so feel free to redirect me to a better board if you have an idea. PPS: If nothing can be found and I'm forced to write one on my own: Where can I find detailed information on how to write a QR code generator?

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  • Best in-memory cache of DB objects for Silverlight [closed]

    - by Jon
    Hi, I'd like to set up a cache of database objects (i.e. rows in a table) in memory in silverlight, which I'll do using WCF and linq-to-sql. Once I have the objects in memory, I'm planning on using MSMQ to receive new objects whenever they have been modified. It's a somewhat complex approach but the goal is to reduce trips to the database and allow instant data communication between Silverlight applications that are connected to the MSMQ. My Silverlight applications are meant to be long-running and the amount of data to be cached will not be large. I'm planning on saving the in-memory cache using local storage. Anyway, in order to process the updated objects that come in, I'd like to know if the user has changed the existing object. Could I use some event relating to data-binding to set a flag indicating that the object has changes? Maybe there's a better way to do the cache entirely? Thanks!

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  • Writing a job requirement for a web application developer

    - by Raul Agrait
    I'm currently writing a job requirement for a software engineer position for my company, in which we are looking for a developer to work on client-side web application work. How should I title the job title / position? I don't necessarily want to call it a "Web Developer", for fear that it might attract more designer-y types. On the other hand, "Software Engineer" doesn't really give the indication that the work, while application based, will be web-based. Is "Web Application Software Engineer" a valid position title? Also, I'm somewhat torn on what the required skills set should be. I don't necessarily think that the ideal candidate should have x years of experience in say, JavaScript or ActionScript, but rather am just looking for someone who has experience in developing client-side applications, and is willing to learn and develop web applications. My current attempt at this, is that I have a section in which I state: Experience in the following frameworks and technologies are a plus, but not necessarily required for the position:

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  • I have written an SQL query but I want to optimize it [closed]

    - by ankit gupta
    is there any way to do this using minimum no of joins and select? 2 tables are involved in this operation transaction_pci_details and transaction SELECT t6.transaction_pci_details_id, t6.terminal_id, t6.transaction_no, t6.transaction_id, t6.transaction_type, t6.reversal_flag, t6.transmission_date_time, t6.retrivel_ref_no, t6.card_no,t6.card_type, t6.expires_on, t6.transaction_amount, t6.currency_code, t6.response_code, t6.action_code, t6.message_reason_code, t6.merchant_id, t6.auth_code, t6.actual_trans_amnt, t6.bal_card_amnt, t5.sales_person_id FROM TRANSACTION AS t5 INNER JOIN ( SELECT t4.transaction_pci_details_id, t4.terminal_id, t4.transaction_no, t4.transaction_id, t4.transaction_type, t4.reversal_flag, t4.transmission_date_time, t4.retrivel_ref_no, t4.card_no, t4.card_type, t4.expires_on, t4.transaction_amount, t4.currency_code, t4.response_code, t4.action_code, t3.message_reason_code, t4.merchant_id, t4.auth_code, t4.actual_trans_amnt, t4.bal_card_amnt FROM ( SELECT* FROM transaction_pci_details WHERE message_reason_code LIKE '%OUT%'|| message_reason_code LIKE '%FAILED%' /*we can add date here*/ UNION ALL SELECT t2.transaction_pci_details_id, t2.terminal_id, t2.transaction_no, t2.transaction_id, t2.transaction_type, t2.reversal_flag, t2.transmission_date_time, t2.retrivel_ref_no, t2.card_no, t2.card_type, t2.expires_on, t2.transaction_amount, t2.currency_code, t2.response_code, t2.action_code, t2.message_reason_code, t2.merchant_id, t2.auth_code, t2.actual_trans_amnt, t2.bal_card_amnt FROM ( SELECT transaction_id FROM TRANSACTION WHERE transaction_type_id = 8 ) AS t1 INNER JOIN ( SELECT * FROM transaction_pci_details WHERE message_reason_code LIKE '%appro%' /*we can add date here*/ ) AS t2 ON t1.transaction_id = t2.transaction_id ) AS t3 INNER JOIN ( SELECT* FROM transaction_pci_details WHERE action_code LIKE '%REQ%' /*we can add date here*/ ) AS t4 ON t3.transaction_pci_details_id - t4.transaction_pci_details_id = 1 ) AS t6 ON t5.transaction_id = t6.transaction_id

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  • Is INT_MIN-1 an underflow or overflow?

    - by Johannes Schaub - litb
    I seem to remember that I was reading that underflow means you have a too small magnitude that cannot be presented anymore in a type overflow means you have a too large magnitude that cannot be presented anymore in a type However, in practice I perceive that the terms are used such that underflow means you have a too small value that cannot be presented anymore in a type overflow means you have a too large value that cannot be presented anymore in a type What is the correct meaning to use here? Are the terms defined differently for integer and floating point types?

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  • Online Advertising And Marketing Your Services?

    - by Zenph
    I have been working on freelance sites for a good 4 or 5 years, bending over backwards to build a decent portfolio and generate great ratings. I take huge pride in my work (web applications). I'm completely lost because when I think what would happen if I suddenly lost my freelance account it isn't a pretty picture. I have literally no idea where else I could advertise my services apart from google paid advertising. Any suggestions? I'd of course be more than willing to pay for marketing and such. I've been searching google for ages and can't find much advice on where to advertise to secure good clients for web development work. I say good clients because I mean actual business owners, not somebody else who is outsourcing to me (where do they find clients?). I'd appreciate any help.

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  • How to deal with static utility classes when designing for testability

    - by Benedikt
    We are trying to design our system to be testable and in most parts developed using TDD. Currently we are trying to solve the following problem: In various places it is necessary for us to use static helper methods like ImageIO and URLEncoder (both standard Java API) and various other libraries that consist mostly of static methods (like the Apache Commons libraries). But it is extremely difficult to test those methods that use such static helper classes. I have several ideas for solving this problem: Use a mock framework that can mock static classes (like PowerMock). This may be the simplest solution but somehow feels like giving up. Create instantiable wrapper classes around all those static utilities so they can be injected into the classes that use them. This sounds like a relatively clean solution but I fear we'll end up creating an awful lot of those wrapper classes. Extract every call to these static helper classes into a function that can be overridden and test a subclass of the class I actually want to test. But I keep thinking that this just has to be a problem that many people have to face when doing TDD - so there must already be solutions for this problem. What is the best strategy to keep classes that use these static helpers testable?

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  • How do you deal with translating theory into practice?

    - by Mr. Shickadance
    Hello all! Being a computer scientist in a research field I am often tasked with working alongside professionals outside of the software domain (think math people, electrical engineer etc), and then translating their theories and ideas into real-world implementations. I often find it difficult when they present a theoretical problem which appears to be somewhat disconnected from reality. I am not saying that the theory is bogus, only that it is difficult to translate into real-world situations. For example, recently I have been working with software defined radios. We are exploring many different areas, but often the math specialists in my group would present a problem which is heavily grounded in theory (signal processing, physics, whatever). I often struggle at times where it is hard to draw direct parallels between the theory and the real-world implementation that I need to develop. Say we are working on an energy detector, the theory person in my group would say "you need to measure the noise variance with no signal present." This leads me to think "how the hell do I isolate noise from a signal in reality?" There are many examples, but I hope you see where I am going. So, my question is how does one deal with implementation of theoretical concepts when the theory seems detached from reality? Or at least when the connections are not so clear. Or perhaps, the person with the 'theory' may be ignorant of real restrictions? Note: I found this to be a hard question to ask - hopefully you are following me. If you have suggestions on how I could improve it, by all means let me know! Thanks for looking! EDIT: To be a bit more clear, I understand in situations like this that I must learn that specific domain myself to an extent (i.e. signal processing), but I am more concerned with when those theoretical concepts do not appear to be as grounded in practice as one would like.

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  • Zend - unable to catch exception [closed]

    - by coder3
    This still throw an uncaught exception.. Any insight why this isn't working? protected function login() { $cart = $this->getHelper('GetCurrentCart'); $returnValue = false; if ($this->view->form->isValid($this->_getAllParams())) { $values = $this->view->form->getValues(); try { $this->goreg = $this->goregFactory->create($this->config->goreg->service_url); if ($this->goreg->login($values['username'], $values['password']) && $this->goregSession->isLoggedIn()) { $returnValue = true; } else { echo 'success 1'; } } catch (Exception $e) { echo 'error 1'; } catch (Zend_Exception $e) { echo 'error 2'; } catch (Zend_Http_Client_Exception $e) { echo 'error 3'; } } return $returnValue; }

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  • Structured work-environment in comparison to an unstructured one [closed]

    - by Phoenix
    I was asked in an interview whether the environment I work in is structured or unstructured. I believe at their end it is unstructured. How will my answer hurt or help my chances at the company ? And what is it intent of this question ? The place where I work it is structured in terms of the technologies we use but all of us work pretty independently on the individual problem. Is this a sufficient explanation. What individual areas I can highlight to support my answer ?

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  • Are CQRS/DDD/Event Sourcing and REST compatible?

    - by Robin Green
    REST seems to promote the idea of a canonical URL for a resource, and PUTing/POSTing back a modified representation of that resource in order to change it. However, with CQRS - Command Query Responsibility Segregation - one can theoretically have a completely different "API" for reading and for writing, which seems to conflict with the REST ideal of one URL for a resource, and no RPC-style "verbs inside the request body". DDD and Event Sourcing sometimes go together with CQRS, which is why I mention them in this question. So, can CQRS be used together with REST? Or is it against the REST way of doing things? What about DDD? And Event Sourcing? Can they be used with REST?

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  • Selecting the (right?) technology and environment

    - by Tor
    We are two developers on the edge of starting new web product development. We are both fans of lean start-up approach and would like to practice continuous deployment. Here comes the dilemma - we are both coming from a C# / Windows background and we need to decide between: Stick to .NET and Windows, we will not waste time on learning new technologies and put all our effort in the development. Switch to Ruby on Rails and Linux which has a good reputation of fast ramp up and vast open source support. The negative side is that we will need to put a lot of effort in learning Ruby, Rails and Linux... What would you do? What other considerations should we take?

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  • What should a freelancer's business card have?

    - by Sergio
    For example, when I first started out freelancing a year ago, my business card had my name, email and website - and up top a list of the technologies I'm comfortable with. In retrospect I don't feel this was a wise decision. Why would a potential client know what Python or Ruby is? How could he know what .NET was? I still have a couple of the old batch left, but I'm going to send out for some new cards. What do you recommend we developers have to show on our business cards? Am I correct in thinking listing technologies is meaningless to potential clients?

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  • /planes and /clubs or /wiki/planes and /wiki/clubs

    - by Jelmer
    I am currently working on a nice application about which I can't share all the details, but it will have some sort of a wiki part. In this wiki, you will be able to change the planes as well as the clubs, maybe in the future it will be possible to change the countries and manufacturers as well. But I have to think about this and I have to check how good this is. But, you will understand that it has to be expendable! That is really important. Use the planes controller with a edit page and the same for the clubs Route the planes and clubs controller to the wiki controller, so we have 1 nice "path" to edit this stuff. I want to have it called wiki that is for sure. Because that is what it is, but I am storing the planes and clubs data in its down table in my database. I think that is kinda obvious since it has to be maintainable. Right now you could edit a plane via the url: example.com/wiki/planes/edit/Duo_Discus.html Do you think that is better than example.com/planes/edit/Duo_Discus.html since it is easy to understand for the user, that he is working in the wiki instead of in the planes ? Or do you think this will break the user experience?

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