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• There's A Virtual Developer Day in Your Future

  - by OTN ArchBeat

  What are Virtual Developer Days? You really should know this by now. OTN Virtual Developer Days are online events created specifically for developers and architects, with a focus on no-fluff technical presentations, hands-on labs, and expert Q&A to sharpen your technical skills and bring you up to speed on the latest information on Oracle products and practical best practices for their use. The best part about OTN Virtual Developer Days is that you don't have to pack a suitcase or stand in line at an airport waiting for someone pat you down. Instead, you stay where you are, flip open your laptop, and prepare your brain for a massive skills injection. In the next few weeks you'll have two such chances to ramp up your skills. On Tuesday November 5, 2013 Harnessing the Power of Oracle WebLogic and Oracle Coherence will guide you through tooling updates and best practices for developing applications with WebLogic and Coherence as target platforms. This two-track event covers app design and development (Track 1) and building, deploying, and managing applications (Track 2). Each track includes three presentations plus a hands-on lab. [9am-1pm PT / 12pm-4pm ET / 1pm-5pm BRT] Register now This event will also be available in EMEA on December 3, 2013 {9am-1pm GMT / 1pm-5pm GST / 2:30pm-6:30 PM IST] On Tuesday November 19, 2103 Oracle ADF Development: Web, Mobile, and Beyond offers four tracks covering everything from the basics to advance skills for for application development using Oracle ADF and Oracle ADF Mobile. There are three sessions in each track, followed by hands-on labs in which try out what you've learned. [9am-1pm PT / 12pm-4pm ET/ 1pm-5pm BRT] Register now This event will also be available in APAC on Thursday November 21, 2013 [10am-1:30pm IST (India) / 12:30pm-4pm SGT (Singapore) / 3:30pm-7pm AESDT] and in EMEA on Tuesday November 26, 2013 [9am-1pm GMT / 1pm-5pm GST/ 2:30pm-6:30pm IST] Registration for both events is absolutely free. So what are you waiting for?

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• Restful Java based web services in json + html5 and javascript no templates (jsp/jsf/freemarker) aka fat/thick client

  - by Ismail Marmoush

  I have this idea of building a website which service JSON data through restful services framework. And will not use any template engines like jsp/jsf/freemarker. Just pure html5 and Javascript libs. What do you think of the pros and cons of such design ? Just for elaboration and brain storming a friend of mine argued with the following concerns: sounds like gwt this way you won't have any control over you service api for example say you wanna charge the user per request how will you handle it? how will you control your design and themes? what about the 1st request the browser make? not easy with this all of the user's requests will come with "Accept" header "application/json" how will you separate browser from abuser? this way all of your public apis will be used by third party apps abusively and you won't be able to lock it since you won't be able to block the normal user browser We won't use compiled html anyway but may be something like freemarker and in that case you won't expose any of your json resources to the unauthorized user but you will expose all the html since any browser can access them all the well known 1st class services do this can you send me links to what you've read? keep in mind the DOM based XSS it will be a nightmare ofc, if what you say is applicable.

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• ArchBeat Link-o-Rama Top 10 for November 2, 2012

  - by Bob Rhubart

  ADF Mobile - Login Functionality | Andrejus Baranovskis "The new ADF Mobile approach with native deployment is cool when you want to access phone functionality (camera, email, sms and etc.), also when you want to build mobile applications with advanced UI, " reports Oracle ACE Director Andrejus Baranovskis. Big Data: Running out of Metric System | Andrew McAfee Do very large numbers make your brain hurt? Better stock up on aspirin. According to Andrew McAfee: "It seems safe to say that before the current decade is out we’ll need to convene a 20th conference to come up with some more prefixes for extraordinarily large quantities not to describe intergalactic distances or the amount of energy released by nuclear reactions, but to capture the amount of digital data in the world." Cloud computing will save us from the zombie apocalypse | Cloud Computing - InfoWorld "It's just a matter of time before we migrate our existing IT assets to public cloud systems," says InfoWorld cloud blogger David Linthicum. "Additionally, it's a short window until the dead rise from the grave and attempt to eat our brains." Is is Halloween or something? Thought for the Day "A computer lets you make more mistakes faster than any invention in human history—with the possible exceptions of hand guns and tequila." — Mitch Ratcliffe

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• How to prevent multiple playing sounds from destroying your hearing?

  - by Rookie

  The problem is that when I play 100 sounds almost at same time, all I hear is noise. It's not very attractive to listen it for 30 minutes straight. I tried to fix this by allowing only 1 sound of each sound type to be played at once. But it still sounds really ugly; eventually my brain keeps hearing only the very end of the shot sounds (or the start of it?), and that gets on my nerves really quickly. Eventually I would just decide to turn off the sounds completely. So is there any point of using sounds in a game like this at all? How does our dear reality handle this problem? If there is a war out there, how does it sound when hundred of men shoot almost at the same times? Edit: Here is how the game sounds currently; there isn't even 100 sounds playing at once, maybe 20? http://www.speedyshare.com/VTBDw/headache.mp3 At the beginning it sounds OK, but then it becomes unbearable! In that audio clip there is allowed only 1 sound to be played at once, so it will stop the previous playing sound when new sound is played. Edit2: And here is same headache but 32 simultaneous sounds allowed to be played at same time: http://www.speedyshare.com/TuWAR/headache-worse.mp3 Quite a torture, eh?

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• OUM is Flexible and Scalable

  - by user535886

  Flexible and Scalable Traditionally, projects have been focused on satisfying the contents of a requirements document or rigorously conforming to an existing set of work products. Often, especially where iterative and incremental techniques have not been employed, these requirements may be inaccurate, the previous deliverables may be flawed, or the business needs may have changed since the start of the project. Fitness for business purpose, derived from the Dynamic Systems Development Method (DSDM) framework, refers to the focus of delivering necessary functionality within a required timebox. The solution can be more rigorously engineered later, if such an approach is acceptable. Our collective experience shows that applying fit-for-purpose criteria, rather than tight adherence to requirements specifications, results in an information system that more closely meets the needs of the business. In OUM, this principle is extended to refer to the execution of the method processes themselves. Project managers and practitioners are encouraged to scale OUM to be fit-for-purpose for a given situation. It is rarely appropriate to execute every activity within OUM. OUM provides guidance for determining the core set of activities to be executed, the level of detail targeted in those activities and their associated tasks, and the frequency and type of end user deliverables. The project workplan should be developed from this core. The plan should then be scaled up, rather than tailored down, to the level of discipline appropriate to the identified risks and requirements. Even at the task level, models and work products should be completed only to the level of detail required for them to be fit-for-purpose within the current iteration or, at the project level, to suit the business needs of the enterprise and to meet the contractual obligations that govern the project. OUM provides well defined templates for many of its tasks. Use of these templates is optional as determined by the context of the project. Work products can easily be a model in a repository, a prototype, a checklist, a set of application code, or, in situations where a high degree of agility is warranted, simply the tacit knowledge contained in the brain of an analyst or practitioner. For further reading on agility, see Balancing Agility and Discipline: A guide fro the Perplexed.

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• Lost contact with my NAS after changing its IP

  - by Beles

  I did some brain-dead reconfiguring of my D-Link DNS-323 NAS some days ago. I have a home network where each computer gets a dynamically allocated IP address starting at 192.168.1.100. The irritating point (for me at least) was that the NAS changed IP if the power went down or I turned off the router. I then had to remap a drive-letter to point to the new IP address of the NAS. To remedy that I configured the NAS to have a static IP, 192.168.0.10. I had no good reason to choose that IP, other than I found it in a user manual for the NAS. After I changed the IP and rebooted the NAS it disappeared from the network and was never to be found again. Now I have a black brick standing in my home, looking good, but "dead". Could anyone point me in a direction which helps me solve this problem? I have about 100gb worth of pic of my children on this brick so I really want it back :-) Sincerely,

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• Benefits of Masters of Engineering Professional Practice for the lowly (yet aspiring) programmer

  - by Peter Turner

  I've been looking into in state online degree programs 'to fit my busy lifestyle' (i.e. three children, wife and hour and a half commute). One interesting one I've found is that Master of Engineering in Professional Practice. It looks more useful and practical than a MBA in project management. I'll contact the admission dept there about the specifics. But here I'm just asking in general. Do the courses in this degree apply to software engineering/development in even an abstract sense. The university I'm looking at does not have a Software Engineering major in the school of engineering. I'm not interested in architecture astronomy, but I am interested in helping my company succeed and being able to communicate technical information at a high and effective level as well as being able to lead my co-programmers toward a more robust end product. So my multipart question is: What might be the real benefit to me and my brain and How do I convince my boss (the owner of the company, who does do some tuition reimbursement) that just because it doesn't say anything about software that it might still do us some good? Oh, and how do I get past the fact that a masters degree would make me more qualified to be the project manager than... the project manager? (who is my supervisor)

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• BizTalk 2009 - Scoped Record Counting in Maps

  - by StuartBrierley

  Within BizTalk there is a functoid called Record Count that will return the number of instances of a repeated record or repeated element that occur in a message instance. The input to this functoid is the record or element to be counted. As an example take the following Source schema, where the Source message has a repeated record called Box and each Box has a repeated element called Item: An instance of this Source schema may look as follows; 2 box records - one with 2 items and one with only 1 item. Our destination schema has a number of elements and a repeated box record.  The top level elements contain totals for the number of boxes and the overall number of items.  Each box record contains a single element representing the number of items in that box. Using the Record Count functoid it is easy to map the top level elements, producing the expected totals of 2 boxes and 3 items: We now need to map the total number of items per box, but how will we do this?  We have already seen that the record count functoid returns the total number of instances for the entire message, and unfortunately it does not allow you to specify a scoping parameter.  In order to acheive Scoped Record Counting we will need to make use of a combination of functoids. As you can see above, by linking to a Logical Existence functoid from the record/element to be counted we can then feed the output into a Value Mapping functoid.  Set the other Value Mapping parameter to "1" and link the output to a Cumulative Sum functoid. Set the other Cumulative Sum functoid parameter to "1" to limit the scope of the Cumulative Sum. This gives us the expected results of Items per Box of 2 and 1 respectively. I ran into this issue with a larger schema on a more complex map, but the eventual solution is still the same.  Hopefully this simplified example will act as a good reminder to me and save someone out there a few minutes of brain scratching.

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• links for 2011-03-16

  - by Bob Rhubart

  InfoQ: Randy Shoup on Evolvable Systems Randy Shoup discusses evolvable systems: how to run different versions of a system in parallel during migrations, decoupling a system with events, schemas at eBay and much more. (tags: ping.fm) InfoQ: Heresy & Heretical Open Source: A Heretic's Perspective Douglas Crockford presents a debate existing around XML and JSON, and the negative effect of the Intellectual Property laws on open source software. (tags: ping.fm) Oracle Technology Network Architect Day: Toronto Registration is now open for this day-long event, to be held at the Sheraton Centre Toronto on April 21. Registration is free, but seating is limited.  (tags: oracle otn enterprisearchitecture cloudcomputing) Harry Foxwell: The Cloud is STILL too slow! "Considering the exponentially growing expectations of what the Web, that is, "the Cloud", is supposed to provide, today's Web/Cloud services are still way too slow." - Harry Foxwell (tags: oracle otn cloud) Architecture Standards - BPMN vs. BPEL for Business Process Management (Enterprise Architecture at Oracle) Path Shepherd gives props to Mark Nelson. (tags: entarch oracle otn) ORCLville: Oracle Fusion Applications: If I Were An AppsTech Oracle ACE Director Floyd Teter says:" If I were an Oracle AppsTech with an eye on Fusion Applications, there are three tools/technologies I'd want... (tags: oracle otn oracleace fusionapplications) Events OverviewYour brain on #entarch - OTN Architect Day - Denver - March 23 This free event includes sessions on Cloud Computing, Application Portfolio Rationalization, System Optimization, Event-Driven Architecture, plus food, beverages, an lots of peer networking. Seating is limited. (tags: oracle entarch otn)

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• Wanted: Java Code Brainteasers

  - by Tori Wieldt

  The Jan/Feb Java Magazine will go out next week. It's full of great Java stories, interviews and technical articles. It also includes a Fix This section; the idea of this section is challenging a Java developer's coding skills. It's a multiple-choice brainteaser that includes code and possible answers. The answer is provided in the next issue. For an example, check out Fix This in the Java Magazine premier issue. We are looking for community submissions to Fix This. Do you have a good code brain teaser? Remember, you want tease your fellow devs, not stump them completely! If you have a submission, here's what you do:  1. State the problem, including a short summary of the tool/technique, in about 75 words. 2. Send us the code snippet, with a short set-up so readers know what they are looking at (such as, "Consider the following piece of code to have database access within a Servlet.") 3. Provide four multiple-choice answers to the question, "What's the fix?" 4. Give us the answer, along with a brief explanation of why. 5. Tell us who you are (name, occupation, etc.) 6. Email the above to JAVAMAG_US at ORACLE.COM with "Fix This Submission" in the title. Deadlines for Fix This for next two issues of Java Magazine are Dec. 12th and Jan. 15th. Bring It!

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• new ubuntu server installation - java server not receiving packets

  - by James

  I have developed a Java server which listens for UDP packets which come from mobile devices. At the moment, it works correctly if I run my Server on my windows PC. I can receive and respond to the UDP packets sent from my phone (over 3g, not wifi). However, I am trying to run the Server on a different computer which I found lying around my house. I have basically done a clean install of Ubuntu Server edition, updated it, installed the java run time environment and configured port forwarding to allow connections on the appropriate port. I have also tried to disable the firewall. The problem is, it doesn't appear as if the server is receiving any packets and I've exhausted my brain thinking on how to solve/debug the problem. Can anyone suggest to me what the problem might be? or more likely something I can do to help me find out more information about what is going wrong.

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• Trouble with SAT style vector projection in C#/XNA

  - by ssb

  Simply put I'm having a hard time working out how to work with XNA's Vector2 types while maintaining spatial considerations. I'm working with separating axis theorem and trying to project vectors onto an arbitrary axis to check if those projections overlap, but the severe lack of XNA-specific help online combined with pseudo code everywhere that omits key parts of the algorithm, googling has left me little help. I'm aware of HOW to project a vector, but the way that I know of doing it involves the two vectors starting from the same point. Particularly here: http://www.metanetsoftware.com/technique/tutorialA.html So let's say I have a simple rectangle, and I store each of its corners in a list of Vector2s. How would I go about projecting that onto an arbitrary axis? The crux of my problem is that taking the dot product of say, a vector2 of (1, 0) and a vector2 of (50, 50) won't get me the dot product I'm looking for.. or will it? Because that (50, 50) won't be the vector of the polygon's vertex but from whatever XNA calculates. It's getting the calculation from the right starting point that's throwing me off. I'm sorry if this is unclear, but my brain is fried from trying to think about this. I need a better understanding of how XNA calculates Vector2s as actual vectors and not just as random points.

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• Why is math taught "backwards"? [closed]

  - by Yorirou

  A friend of mine showed me a pretty practical Java example. It was a riddle. I got excited and quickly solved the problem. After it, he showed me the mathematical explanation of my solution (he proved why is it good), and it was completely clear for me. This seems like natural approach for me: solve problems, and generalize. This is very familiar to me, I do it all the time when I am programming: I write a function. When I have to write a similar function, I generalize the problem, grab the generic parts, and refactor them to a function, and solve the original problems as a specialization of the general function. At the university (or at least where I study), things work backwards. The professors shows just the highest possible level of the solutions ("cryptic" mathematical formulas). My problem is that this is too abstract for me. There is no connection of my previous knowledge (== reality in my sense), so even if I can understand it, I can't really learn it properly. Others are learning these formulas word-by-word, and get good grades, since they can write exactly the same to the test, but this is not an option for me. I am a curious person, I can learn interesting things, but I can't learn just text. My brain is for storing toughts, not strings. There are proofs for the theories, but they are also really hard to understand because of this, and in most of the cases they are omitted. What is the reason for this? I don't understand why is it a good idea to show the really high level of abstraction and then leave the practical connections (or some important ideas / practical motivations) out?

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• Browser not parsing PAC file properly?

  - by mfinni

  I have a long PAC file. The browser(s) (IE and Chrome) are configured to use it and it generally does what it says on the tin. I have a domain that continues to go through the proxy although it should be going direct. // Match specific hosts and IPs entered as hosts if (buncha stuff || shExpMatch(host,"(*.newmarketinc.com)") || shExpMatch(host,"(newmarketinc.com)") || buncha stuff ) return "DIRECT"; Pactester shows that anything in the domain should be direct. h:\pacparser\pactester.exe -p h:\pacfile -u http://daas.newmarketinc.com DIRECT But we continue to pass traffic to hosts in this domain via the proxy. Wireshark and Fiddler both show this. How do i figure out how my browser has gotten brain-damage? Traffic to other sites in this stanza does properly go direct, as confirmed by Fiddler and Wireshark.

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• hp laserjet 4200 madness

  - by C-dizzle

  I have an HP LaserJet 4200 printer that is acting really weird. I can print from internet just fine, no problem... but when I try to print from a document used in microsoft word, for example, I always get "Manual Feed Tray 1". I have racked my brain on this and cannot get it figured out. It's a networked printer and only an administrator account can make changes to it, I have also reset the printer back to factory settings, uninstalled and reinstalled onto the pc's and server it is connected to. Running out of hair since I'm pulling it all out... please help.

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• Building a complete program?

  - by Bob

  Reading books, watching videos, and reviewing tutorials is all very easy. Taking notes and actually learning the material may be slightly harder, but even then, anyone with a decent brain and a fair amount of interest, it's easy enough (not to mention, fun). The thing is, it doesn't really prepare you to write a full program or website. Let's say you're those teens (only in highschool, no true (college level) computer science or programming courses, and no real world experience), and you come out with Groupon. Or even Mark Zuckerburg, sure he was a genius, and he was a very capable programmer... but how? How do you recommend that people who are not necessarily new to programming, but new to programming real applications and real programmers go about developing it? What is the "development process" - especially for single programmers (or maybe 2-3 teens)? Also, as far as web development goes, what is the process? Was something like Facebook or Groupon written with a framework (like CodeIgniter or Zend for PHP)? Or do they develop their own frameworks? I'm not asking how to come up with a great idea, but how to implement great ideas in an effective way? Does anyone have advice? I've read a couple of books on both C and C++ (primarily the C Programming Language and the C++ Programming Language) and taken AP Computer Science (as well as read a few additional books on Java and OOP). I also have read a few tutorials on PHP (and CodeIgniter) and Python. But I'm still in highschool, and I'm technically not even old enough to work at an internship for a few more months.

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• Is there a way to do a Windows 7 repair install when you are unable to start/boot Windows 7?

  - by irrational John

  My understanding is that the only way to perform a "repair install" in Windows 7 is to run the install setup.exe within the Windows 7 installation you want to repair. This seems a little brain dead to me since usually the reason I wanted to perform the repair install was because the existing installation was so broken that I could no longer boot and use it. It seems Microsoft is saying my only option in that case is to do a clean install and then reinstall all my apps. So I'm wondering if anyone knows of a way to perform a Windows 7 repair install ... one that preserves your existing OS settings and application installs ... on a Windows 7 partition that cannot be booted.

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• Cannot SSH into Amazon EC2 instance

  - by edelwater

  I read: Cannot connect to ec2 instance http://stackoverflow.com/questions/5635640/cannot-ssh-into-amazon-ec2-instance Amazon EC2 instance ssh problems etc... But could not fix it: suddenly (after a year of service, no changes on my winscp settings) it gives me "network error connection timed out" (im using ec2-user) (also from the amazon console). Log FILE: http://pastebin.com/vNq6YQvN All Sites that run on it run fine port 22 is allowed (never changed it) (security group) using the correct ec2-user and domain via my winscp / putty i can connect to other hosting (via ssh) update: SOLVED. I spend 2 days without looking at my own IP address .... (since it did not change the past 3 years....). Your comments made the spark in my brain. thank you so much. (and only now i find dozens of discussions from angry users that the static addresses from my provider are changed to dynamic ones: http://gathering.tweakers.net/forum/list_messages/1501005/12 ...)

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• Java Magazine: Developer Tools and More

  - by Tori Wieldt

  The May/June issue of Java Magazine explores the tools and techniques that can help you bring your ideas to fruition and make you more productive. In “Seven Open Source Tools for Java Deployment,” Bruno Souza and Edson Yanaga present a set of tools that you can use now to drastically improve the deployment process on projects big or small—enabling you and your team to focus on building better and more-innovative software in a less stressful environment. We explore the future of application development tools at Oracle in our interview with Oracle’s Chris Tonas, who discusses plans for NetBeans IDE 9, Oracle’s support for Eclipse, and key trends in the software development space. For more on NetBeans IDE, don’t miss “Quick and Easy Conversion to Java SE 8 with NetBeans IDE 8” and “Build with NetBeans IDE, Deploy to Oracle Java Cloud Service.” We also give you insight into Scrum, an iterative and incremental agile process, with a tour of a development team’s Scrum sprint. Find out if Scrum will work for your team. Other article topics include mastering binaries in Maven-based projects, creating sophisticated applications with HTML5 and JSF, and learning to program with BlueJ. At the end of the day, tools don’t make great code—you do. What tools are vital to your development process? How are you innovating today? Let us know. Send a tweet to @oraclejavamag. The next big thing is always just around the corner—maybe it’s even an idea that’s percolating in *your* brain. Get started today with this issue of Java Magazine. Java Magazine is a FREE, bi-monthly, online publication. It includes technical articles on the Java language and platform; Java innovations and innovators; JUG and JCP news; Java events; links to online Java communities; and videos and multimedia demos. Subscriptions are free, registration required.

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• Bluetooth Connectivity that an error

  - by eka anggraini

  I have a bluetooth USB, every time I enter the bluetooth, bluetooth is active only a few seconds, after which it can not be used again In 'devices and printer' there is still a bluetooth but if you want to save the settings it can not, there are error message or bluetooth is revoked. I am using windows 7, whereas if use Windows XP smoothly no problems. This not only happens on my computer alone, my friend who has a build-in bluetooth also experienced the same thing with the same OS. Is there a patch / fix / update for its Windows? I've been brain-tweaking drivers for all but still can not.

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• Best Practices in Preventing Locks in File sharing in Windows?

  - by crosenblum

  We have a web development server, that has our source control on it. That we use via mapped drives to open/edit/save/create files on to it. But I have noticed a lot of weird glitches with either the file lock/sharing/etc For example, if i have a file open on my local pc, and try to check out that file via my source control on dev, it error's out. The source control I use is QCVS by Qumasoft. Or If I use cuteftp to download something to dev, via my local pc, it won't download unless I close that file. So my brain sniff's and figures this is either an issue with folder/network/sharing, or an issue of permissions. Has anyone else had similar issues, and what did they do to fix it permanently? Thank you...

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• The idea of functionN in Scala / Functionaljava

  - by Luke Murphy

  From brain driven development It turns out, that every Function you’ll ever define in Scala, will become an instance of an Implementation which will feature a certain Function Trait. There is a whole bunch of that Function Traits, ranging from Function1 up to Function22. Since Functions are Objects in Scala and Scala is a statically typed language, it has to provide an appropriate type for every Function which comes with a different number of arguments. If you define a Function with two arguments, the compiler picks Function2 as the underlying type. Also, from Michael Froh's blog You need to make FunctionN classes for each number of parameters that you want? Yes, but you define the classes once and then you use them forever, or ideally they're already defined in a library (e.g. Functional Java defines classes F, F2, ..., F8, and the Scala standard library defines classes Function1, ..., Function22) So we have a list of function traits (Scala), and a list of interfaces (Functional-java) to enable us to have first class funtions. I am trying to understand exactly why this is the case. I know, in Java for example, when I write a method say, public int add(int a, int b){ return a + b; } That I cannot go ahead and write add(3,4,5); ( error would be something like : method add cannot be applied to give types ) We simply have to define an interface/trait for functions with different parameters, because of static typing?

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• How to switch off? [closed]

  - by Xophmeister

  While I've programmed software for many years, I've only recently started doing so professionally and have noticed a bit of a problematic pattern. I hope this is the best place to pose such a question, as I am interested in others' experiences and solutions... Writing software is, by its nature, a cerebral exercise. When coding for my own sake, I would do so until I was satisfied; even if that meant going all night. Now I'm coding in exchange for goods and services, on projects that are inherently uninteresting to me, I want to 'switch off' when it's time to go home. Maybe you consider that to be a 'bad attitude', but I just don't feel that whatever I'm working on is worth caring about after-hours. Besides, my employer doesn't exactly have the infrastructure required to make out-of-office changes; I can't just clone a repo and even remote login is a PITA. Anyway, the problem I'm experiencing is that, while I'm not particularly overworked or stressed, if I'm faced with a problem, my brain will work on a solution. Generally, it won't give up. Hence I can't switch off and, sometimes, the problem or the solution is significant enough that it disrupts my sleep. While, paradoxically, this doesn't seem to affect my coding ability, it can have a profound impact of the rest of my life. I get increasingly low as I get tired. So far, the best solutions I've found are writing little notes on the matter (and, say, e-mailing them back to my work address) and exercise. Neither of these can switch me off entirely and, as the week progresses, exercise especially becomes untenable due to tiredness. TL;DR How can you stop from being a coding zombie?

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• What's wrong with circular references?

  - by dash-tom-bang

  I was involved in a programming discussion today where I made some statements that basically assumed axiomatically that circular references (between modules, classes, whatever) are generally bad. Once I got through with my pitch, my coworker asked, "what's wrong with circular references?" I've got strong feelings on this, but it's hard for me to verbalize concisely and concretely. Any explanation that I may come up with tends to rely on other items that I too consider axioms ("can't use in isolation, so can't test", "unknown/undefined behavior as state mutates in the participating objects", etc.), but I'd love to hear a concise reason for why circular references are bad that don't take the kinds of leaps of faith that my own brain does, having spent many hours over the years untangling them to understand, fix, and extend various bits of code. Edit: I am not asking about homogenous circular references, like those in a doubly-linked list or pointer-to-parent. This question is really asking about "larger scope" circular references, like libA calling libB which calls back to libA. Substitute 'module' for 'lib' if you like. Thanks for all of the answers so far!

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• When can I publish a software tool written at work?

  - by AlexMA

  I'm working on a software problem at work that is fairly generic, but I can't find a library I like to solve it, so I'm considering writing one myself (at least a bare-bones version). I'll be writing some if not all of the 1.0 version at work, since I need it for the project. If turns out well I might want to bring the work home and polish it up just for fun, and maybe release it as an open-source project. However, I'm concerned that if I wrote the 1.0 version at work I may not be allowed to do this from a legal sense. Obviously I could ask my boss (who probably won't care), but I'm curious how other programmers have dealt with this issue and where the law stands here. My one sentence question is, When is it okay (legally/ethically) to open-source a software tool originally written by you for work at work? What if you have expanded the original source significantly during off-hours? Follow-up: Suppose I write the whole thing at home on my time then simply use it at work, does that change things drastically? Follow-up 2: Note that I'm not trying to rip off my employer (I understand that they're paying me to build products that they own)--I'm just wondering if there's a fair way of doing this for all involved... It would be nice if some nonprofit down the road could use my code and save them some time. Also, there's another issue at stake. If I write the library for a very simple, generic thing (like HTML tables in Javascript), does that mean I can never again do so on my own time without putting myself at legal risk (even if it was a whole new fresh rewrite or a segment of a larger project). Am I surrendering my right to write code for this sort of project for the rest of my life (without this company's permission), since the code at work might still be somewhere in my brain influencing me? This seems related to software patents, as a side-note.

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