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  • Bitbucket and a small development house

    - by Marlon
    I am in the process of finally rolling Mercurial as our version control system at work. This is a huge deal for everyone as, shockingly, they have never used a VCS. After months of putting the bug in management's ears, they finally saw the light and now realise how much better it is than working with a network of shared folders! In the process of rolling this out, I am thinking of different strategies to manage our stuff and I am leaning towards using Bitbucket as our "central" repository. The projects in Bitbucket will solely be private projects and everyone will push and pull from there. I am open to different suggestions, but has anyone got a similar setup? If so, what caveats have you encountered?

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  • data maintenance/migrations in image based sytems

    - by User
    Web applications usually have a database. The code and the database work hand in hand together. Therefore Frameworks like Ruby on Rails and Django create migration files Sure there are also servers written in Self or Smalltalk or other image-based systems that face the same problem: Code is not written on the server but in a separate image of the programmer. How do these systems deal with a changing schema, changing classes/prototypes. Which way do the migrations go? Example: What is the process of a new attribute going from programmer's idea to the server code and all objects? I found the Gemstone/S manual chapter 8 but it does not really talk about the process of shipping code to the server.

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  • Improve efficiency of web building setup and processes - Wordpress on Mac

    - by Rob
    Can anyone see any ways in which I can improve my speed and efficiency with the following setup? Or if there are any obvious holes in my building process? This is for building Wordpress websites on Mac: 1) I have a standard Wordpress setup that I work from which includes various plugins that I tend to use across all setups - thus cutting out the step of having to download them all the time! 2) My standard WP files are copied into a Dropbox folder - thus creating backups of the files. 3) I then open up MAMP and setup a local version. 4) I open up Coda and setup the FTP details so files can be uploaded to the live domain by using the publish button. If anyone has any advice on how to improve this process then please let me know!

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  • How can I create a temporary sandbox to compile from source?

    - by zoopp
    I want to follow the steps found here in order to run League of Legends under Ubuntu. According to the guide, I have to compile wine from source because it needs some patches. Compiling from source involves downloading quite a few dependency packages which I don't want to get mixed with the system and thus I'm wondering if there's a way to somehow isolate the whole "download dependencies packages and compile" process as I am only interested in the final wine binary. By isolating the compile process I can just copy the resulting binary and do a simple delete on the sandbox whereas doing it the naive way would require a more complex cleanup.

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  • How should I pitch moving to an agile/iterative development cycle with mandated 3-week deployments?

    - by Wayne M
    I'm part of a small team of four, and I'm the unofficial team lead (I'm lead in all but title, basically). We've largely been a "cowboy" environment, with no architecture or structure and everyone doing their own thing. Previously, our production deployments would be every few months without being on a set schedule, as things were added/removed to the task list of each developer. Recently, our CIO (semi-technical but not really a programmer) decided we will do deployments every three weeks; because of this I instantly thought that adopting an iterative development process (not necessarily full-blown Agile/XP, which would be a huge thing to convince everyone else to do) would go a long way towards helping manage expectations properly so there isn't this far-fetched idea that any new feature will be done in three weeks. IMO the biggest hurdle is that we don't have ANY kind of development approach in place right now (among other things like no CI or automated tests whatsoever). We don't even use Waterfall, we use "Tell Developer X to do a task, expect him to do everything and get it done". Are there any pointers that would help me start to ease us towards an iterative approach and A) Get the other developers on board with it and B) Get management to understand how iterative works? So far my idea involves trying to set up a CI server and get our build process automated (it takes about 10-20 minutes right now to simply build the application to put it on our development server), since pushing tests and/or TDD will be met with a LOT of resistance at this point, and constantly force us to break larger projects into smaller chunks that could be done iteratively in a three-week cycle; my only concern is that, unless I'm misunderstanding, an agile/iterative process may or may not release the software (depending on the project scope you might have "working" software after three weeks, but there isn't enough of it that works to let users make use of it), while I think the expectation here from management is that there will always be something "ready to go" in three weeks, and that disconnect could cause problems. On that note, is there any literature or references that explains the agile/iterative approach from a business standpoint? Everything I've seen only focuses on the developers, how to do it, but nothing seems to describe it from the perspective of actually getting the buy-in from the businesspeople.

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  • Oracle Certification Survey - Becoming Oracle Certified

    - by Paul Sorensen
    At Oracle University, we're interested to know what kinds of challenges you face as you approach your task of getting certified. We know that getting Oracle certified is not an easy process, and we would like your input on which factors tend to be more or less of an issue to you personally. Our hope is that the results of this survey will help not only further improve the Oracle Certification Program but make it more accessible as well.If you are certified, in the process of getting certified, or have ever considered certification - please take a moment to respond to our eight-question survey. It should only take you 3-5 minutes to complete.TAKE THE SURVEY NOW: "BECOMING ORACLE CERTIFIED"(8 questions)Thank you in advance for your participation.

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  • I can't get Ubuntu installation to start

    - by tyler
    I have a computer with the following configuration: AZUS Sabertooth Motherboard Intel I5 2500 CPU Windows 7 installed I'm trying to install linux. I first attempted to install pin guy. I burned the ISO, booted from it, got the initial menu; attempting to either run the live version from DVD, or install to system. However the process stops at a blank screen with the blinking cursor in left corner. So I downloaded Ubuntu and got the same results. Then I tried wubi and ended up in the same position. EDIT: UEFI might be part of the problem? Based on the link below I have determined that the process will be too time consuming and or risky so I'm giving up. https://help.ubuntu.com/community/UEFIBooting

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  • Ubuntu Software Center does not proceed from applying changes

    - by aneal
    I have a problem with Ubuntu software center. It is "Searching" and "applying changes" for long period of time. I tired to cancel by clicking cross(X) mark. However, it is now stuck at "cancelling". It won't let me download any new application even from terminal i guess. neal@neal-G50VT:~$ sudo apt-get install gnome-tweak-tool E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable) E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it? neal@neal-G50VT:~$ sudo dpkg --configure -a dpkg: error: dpkg status database is locked by another process There are similar question here, but with no answers: Software Center stuck for Dropbox Software Center freezes during “applying changes

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  • Web Hosting Backup/Disaster Recovery Plan - Which Company?

    - by Harry Muscle
    I've been asked to look after consolidating all of our various company websites onto one host and also provide a disaster recover plan in case the chosen host goes down/out of business/etc. We're most likely going to go with HostGator as our chosen host, however, I'm not sure who to pick for our backup host. HostGator uses cPanel and has the functionality to provide regular full (ie: including configuration) backups of all the sites we host. Ideally I'm looking for a solution where we can provide these backups to another company and within a short period of time they restore all the sites onto their servers and we're back up and running. The whole disaster recover process has to be fairly straight forward from the point of view of what we need to do in case I am unavailable to assist in the disaster recovery process and no one else overly technical is available to assist (ie: take these backup files, send them to this company, and ask them to do this). Any suggestions on which company would be a good choice for this backup solution would be highly appreciated. Thanks, Harry

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  • chromium-browser --proxy-server debugging

    - by user3678068
    Many places online have pointed out to configure chromium proxy via command can be achieve with the following line chromium-browser --proxy-server=[username]:[password]@[host]:[port] but I got this result on every request. Here's the output in the command line right after executing the previous command. (They do not appear to be relevant. There are no new command line output when I try to visit a page) libGL error: failed to authenticate magic 30 libGL error: failed to load driver: vboxvideo ATTENTION: default value of option force_s3tc_enable overridden by environment. [29551:29551:0606/160459:ERROR:sandbox_linux.cc(268)] InitializeSandbox() called with multiple threads in process gpu-process I have double checked that the proxy credential works with the foxyproxy chrome plugin. What else can I try to figure this out? [Edit] Going to chrome://net-internals/#proxy and reading "Effective proxy settings" if I do chromium-browser with no flags, I get Use DIRECT connections. Source: GSETTINGS if chromium-browser --proxy-server=[host]:[port], I get a message box requesting to login, and under "Effective proxy settings": Proxy server: [host]:[port] if chromium-browser --proxy-server=[user]:[pass]@[host]:[port], "Effective proxy settings" shows: Use DIRECT connections

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  • Upgrading Code from 2007 to 2010

    - by MOSSLover
    So I’ve been doing some upgrades just to see if things will work from 2007 to 2010.  So far most of the stuff I want works, but obviously there are some things that break.  Did you guys know that in 2007 you could add a webpart to the view pages for lists and libraries without losing the toolbar?  In 2010 the ribbon disappears every time you add a webpart.  So if you are using Scot Hillier’s Codeplex project to hide buttons it will not work the same way, because the ribbon is going to disappear altogether. I have also learned another reason why standalone installations are the bane of my existence.  Nine times out of ten the installation is done using Network Service as the application pool account.  You are wondering why is this bad?  Well, let’s just say the site collection administrator with local admin rights wants to attach the IIS Worker process and debug say a webpart.  Visual Studio 2010 will throw a nasty error that tells you that you are not an administrator.  You will say, but I am an administrator?  I have all the correct group permissions on the server and on SQL and in SharePoint.  Then you will go in and decide let’s add my own admin account just to see if I can attach the debugger and you will notice that works properly.  So the morale of the story is create a separate account on your development environment to run all the SharePoint Services and such.  You don’t need to go all out and create the best practices amount of accounts if it’s just your dev environment.  I would at least create one single account to run all your SharePoint process (Services, SQL, and App Pool).  Also, don’t run a standalone install unless you want to kill kittens (this is a quote from Todd Klindt).  We love kittens they are cute and awesome.  Besides you learn more if you click Complete and just skip standalone.  You will learn how to setup SQL Server 2008 and you will learn how to configure your environment.  It will help you in the long run.  So I have ranted enough for today I figure these are enough tidbits for you this time around.  The two of you who read my blog and I know some of you are friends who don’t understand SharePoint.  I might as well have just done “wahwahwahwah” in Charlie Brown adult speak.  Thanks for reading as usual.  I’ll catch you all when I complain more about the upgrade process and share more tidbits, which will inevitably become a presentation at a conference or two. Technorati Tags: Upgrade Code SharePoint 2007 to 2010,Visuaul Studio 2010,SharePoint 2010

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  • Client Side Form Validation vs. Server Side Form Validation

    In my opinion, it is mandatory to validate data using client side and server side validation as a fail over process. The client side validation allows users to correct any error before they are sent to the web server for processing, and this allows for an immediate response back to the user regarding data that is not correct or in the proper format that is desired. In addition, this prevents unnecessary interaction between the user and the web server and will free up the server over time compared to doing only server side validation. Server validation is the last line of defense when it comes to validation because you can check to ensure the user’s data is correct before it is used in a business process or stored to a database. Honestly, I cannot foresee a scenario where I would only want to use one form of validation over another especially with the current cost of creating and maintaining data. In my opinion, the redundant validation is well worth the overhead.

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  • How do you do ASP.Net performance testing?

    - by John
    Our team is in need of a performance testing process. We use ASP.Net (both web forms and MVC) and performance testing is not currently built into our projects. We occasionally do some ad-hoc analysis, such as checking the load on the server or SQL Server Profiler, but we don't have a true beginning to end, built into the project performance testing methodology. Where is a good place to start? I'm interested in both: Process - General knowledge, including best practices. Essential list of tools. I'm aware of a few tools, such as what's built into the pricier versions of VS 2010 and JetBrains products, though I haven't used them.

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  • One more chance to get your JDeveloper/ADF session into OOW

    - by shay.shmeltzer
    Did you miss the deadline for submitting sessions to OOW/Oracle Develop? Did you submit a session that didn't get in? Here is one more chance to get a session in - the "suggest a session" process on Oracle Mix is now open to session submissions by users. Then there will be a voting period open to the public - and the most popular sessions will be added to the OOW/Oracle Develop schedule. This is probably your last chance to get a session in this year, and get a free speaker pass to the event. So don't miss it - share your knowledge. https://mix.oracle.com/oow10/proposals More info on the process here.

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  • Can someone explain the "use-cases" for the default munin graphs?

    - by exhuma
    When installing munin, it activates a default set of plugins (at least on ubuntu). Alternatively, you can simply run munin-node-configure to figure out which plugins are supported on your system. Most of these plugins plot straight-forward data. My question is not to explain the nature of the data (well... maybe for some) but what is it that you look for in these graphs? It is easy to install munin and see fancy graphs. But having the graphs and not being able to "read" them renders them totally useless. I am going to list standard plugins which are enabled by default on my system. So it's going to be a long list. For completeness, I am also going to list plugins which I think to understand and give a short explanation as to what I think it's used for. Pleas correct if I am wrong with any of them. So let me split this questions in three parts: Plugins where I don't even understand the data Plugins where I understand the data but don't know what I should look out for Plugins which I think to understand Plugins where I don't even understand the data These may contain questions that are not necessarily aimed at munin alone. Not understanding the data usually mean a gap in fundamental knowledge on operating systems/hardware.... ;) Feel free to respond with a "giyf" answer. These are plugins where I can only guess what's going on... I hardly want to look at these "guessing"... Disk IOs per device (IOs/second)What's an IO. I know it stands for input/output. But that's as far as it goes. Disk latency per device (Average IO wait)Not a clue what an "IO wait" is... IO Service TimeThis one is a huge mess, and it's near impossible to see something in the graph at all. Plugins where I understand the data but don't know what I should look out for IOStat (blocks/second read/written)I assume, the thing to look out for in here are spikes? Which would mean that the device is in heavy use? Available entropy (bytes)I assume that this is important for random number generation? Why would I graph this? So far the value has always been near constant. VMStat (running/I/O sleep processes)What's the difference between this one and the "processes" graph? Both show running/sleeping processes, whereas the "Processes" graph seems to have more details. Disk throughput per device (bytes/second read/written) What's thedifference between this one and the "IOStat" graph? inode table usageWhat should I look for in this graph? Plugins which I think to understand I'll be guessing some things here... correct me if I am wrong. Disk usage in percent (percent)How much disk space is used/remaining. As this is approaching 100%, you should consider cleaning up or extend the partition. This is extremely important for the root partition. Firewall Throughput (packets/second)The number of packets passing through the firewall. If this is spiking for a longer period of time, it could be a sign of a DOS attack (or we are simply recieving a large file). It can also give you an idea about your firewall performance. If it's levelling out and you need more "power" you should consider load balancing. If it's levelling out and see a correlation with your CPU load, it could also mean that your hardware is not fast enough. Correlations with disk usage could point to excessive LOG targets in you FW config. eth0 errors (packets in/out)Network errors. If this value is increasing, it could be a sign of faulty hardware. eth0 traffic (bits/second in/out)Raw network traffic. This should correlate with Firewall throughput. number of threadsAn ever-increasing value might point to a process not properly closing threads. Investigate! processesBreakdown of active processes (including sleeping). A quick spike in here might point to a fork-bomb. A slowly, but ever-increasing value might point to an application spawning sub-processes but not properly closing them. Investigate using ps faux. process priorityThis shows the distribution of process priorities. Having only high-priority processes is not of much use. Consider de-prioritizing some. cpu usageFairly straight-forward. If this is spiking, you may have an attack going on, or a process is hogging the CPU. Idf it's slowly increasing and approaching max in normal operations, you should consider upgrading your hardware (or load-balancing). file table usageNumber of actively open files. If this is reaching max, you may have a process opening, but not properly releasing files. load averageShows an summarized value for the system load. Should correlate with CPU usage. Increasing values can come from a number of sources. Look for correlations with other graphs. memory usageA graphical representation of you memory. As long as you have a lot of unused+cache+buffers you are fine. swap in/outShows the activity on your swap partition. This should always be 0. If you see activity on this, you should add more memory to your machine!

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  • Javascript Implementation Patterns for Server-side MVC Websites

    - by tmo256
    I'm looking for information on common patterns for initializing and executing Javascript page by page in a "traditional" server-side MVC website architecture. A few months ago, my development team began, but abandoned, a major re-architecture of our company's primary web app, including a full front-end redesign. In the process, there was some debate about the architecture of the Javascript in the current version of the site, and whether it fit into a clear, modern design pattern. Now I've returned to the process of overhauling the front end of this and several other MVC websites (Ruby on Rails and MVC.net) to implement a responsive framework (Bootstrap), and in the process will again need to review then revamp and update a lot of Javascript. These web applications are NOT single-page Javascript applications (in fact, we are ripping out a lot of Ajax) or designed to require a Javascript MVC pattern; these apps are basically brochure, catalog and administrative sites that follow a server-side MVC pattern. The vast majority of the Javascript required is behavioral, pre-built plugins (JQuery and Bootstrap, et al) that execute on specific DOM nodes. I'm going to give a very brief (as brief as I can be) run-down of the current architecture only in order to illustrate the scope and type of paradigm I'm talking about. Hopefully, it will help you understand the nature of the patterns I'm looking for, but I'm not looking for commentary on the specifics of this code. What I've done in the past is relatively straight-forward and easy to maintain, but, as mentioned above, some of the other developers don't like the current architecture. Currently, on document ready, I execute whatever global Javascript needs to occur on every page, and then call a page-specific init function to initialize node-specific functionality, retrieving the init method from a JS object. On each page load, something like this will happen: $(document).ready(function(){ $('header').menuAction(); App.pages.executePage('home','show'); //dynamic from framework request object }); And the main App javascript is like App = { usefulGlobalVar: 0, pages: { executePage: function(action, controller) { // if exists, App.pages[action][controller].init() }, home: { show: { init: function() { $('#tabs').tabs(); //et. al }, normalizeName: function() { // dom-specific utility function that // doesn't require a full-blown component/class/module } }, edit: ... }, user_profile: ... } } Any common features and functionality requiring modularization or compotentizing is done as needed with prototyping. For common implementation of plugins, I often extend JQuery, so I can easily initialize a plugin with the same options throughout the site. For example, $('[data-tabs]').myTabs() with this code in a utility javascript file: (function($) { $.fn.myTabs = function() { this.tabs( { //...common options }); }; }) Pointers to articles, books or other discussions would be most welcome. Again, I am looking for a site-wide implementation pattern, NOT a JS MVC framework or general how-tos on creating JS classes or components. Thanks for your help!

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  • What are events SQL profiler eventclass numbers 65527,65528,65533,65534

    - by simonsabin
    I’ve been trying to use RML to process some files and couldn’t figure out why the numbers where all so much smaller than they should be. I then found a line in the RML output “Found [TRACE_STOP] event indicating the end of the trace files” This causes RML to stop processing further data, oh. In my case I had stopped the trace to add some error events because the client was experiencing errors. How do I get RML to process all the other data I wondered. This lead me to the eventclasses in the trace...(read more)

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  • Accessing Exam Results on CertView

    - by Brandye Barrington
    On November 15, Oracle Certification Exam results became available through Oracle's Certification portal CertView. The video above provides a more in depth look at one aspect of this new process. If you need more information this new process, you can view the full announcement on our website. As always, if you need assistance with your CertView account, please contact Oracle Certification Support for additional assistance. YOUR QUESTIONS ANSWERED More Information CertView FAQ: Receiving Exam Scores FAQ: How Do I Log Into CertView? FAQ: How To Get Exam Results FAQ: How Will I Know When My Exam Results Are Available? FAQ: What If I Don't Get An Exam Results Email Alert? FAQ: How To Download and Print Exam Score Reports FAQ: What If I Think My Exam Results Are Wrong In CertView? FAQ: Is Oracle Changing The Way That Exams Are Scored? 

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  • Databases and Beer

    - by Johnm
    It is a bit of a no-brainer: Include the word "beer" in a subject line of an e-mail or blog post title and you can be certain that it will be read. While there are times this practice might be a ploy to increase readership, it is not the case for this blog post. There is inspiration that can be drawn from other industries to which we, as database professionals, can apply in our industry. In this post I will highlight one of my favorite participants of the brewing industry. The Boston Beer Company started in the 1970s in Boston, Massachusetts. Others may be more familiar with this company through their Samuel Adams Boston Lager and other various seasonal beers. I am continually inspired by their commitment to mastery of the brewing process to which they evangelize frequently in their commercials. They also are continually in pursuit of pushing the boundaries of beer as we know it while working within traditional constraints. A recent example of this is their collaboration with Weihenstephan Brewery of Munich, Germany to produce the soon to be released Infinium beer. This beer, while brewed as an ale, is touted as something closer to something like Champaign - all while complying with the Reinheitsgebot. The Reinheitsgebot is also known as the "German Beer Purity Law" which was originated in 1516. This law states that beer is to consist of water, barley, hops and yeast. That's it. Quite a limiting constraint indeed. and yet, The Boston Beer Company pushed forward. Much like the process of brewing, the discipline of database design and architecture is one that is continually in process and driven by the pursuit of mastery. While we do not have purity laws to constrain us, we have many other types: best practices, company policies, government regulations, security and budgets. Through our fellow comrades, we discuss the challenges and constraints in which we operate. We boil down the principles and theories that define our profession. We reassemble these into something that is complementary to the business needs that we must fulfill. As a result, it is not uncommon to see something amazingly innovative in a small business who is pushing the boundaries of their database well beyond its intended state. It is equally common to see innovation in the use of features available in the more advanced features of databases that are found in large businesses. The tag line for The Boston Beer Company is: "Take Pride In Your Beer.", I would like to offer an alternative and say "Take Pride In Your Database." So, As you pour your next Boston Lager into a frosted glass, consider those who spend their lives mastering the craft of brewing and strive to interject their spirit into everything that you do as a database professional. Cheers!

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  • Do you develop with localization in mind?

    - by Jimmy C
    When working on a software project or a website, do you develop with localization in mind? By this I mean e.g. Externalizing all strings, including error messages. Not using images that contain text. Designing your UI with text expansion in mind. Using pseudo-translation to test your UI's early in the process. etc. On projects you work on, are these in the 'nice to have' category and let the L10N team worry about the rest, or do you have localization readiness built into your development process? I'm interested to hear how developers view localization in general.

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  • Instance Patching Demo for BPM 11.1.1.7 by Mark Nelson

    - by JuergenKress
    BPM 11.1.1.7 has a new ‘instance patching and migration’ feature that allows you to apply changes to running instances of processes (without changing the revision of the process) and/or to migrate running instances between revisions of a process. There is a short viewlet demonstration posted here, but there is unfortunately no sound. SOA & BPM Partner Community For regular information on Oracle SOA Suite become a member in the SOA & BPM Partner Community for registration please visit www.oracle.com/goto/emea/soa (OPN account required) If you need support with your account please contact the Oracle Partner Business Center. Blog Twitter LinkedIn Facebook Wiki Mix Forum Technorati Tags: Mark Nelson,BPM,SOA Community,Oracle SOA,Oracle BPM,Community,OPN,Jürgen Kress

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  • Managed code and the Shell – Do?

    Back in 2006 I wrote a blog post titled: Managed code and the Shell – Don't!. Please visit that post to see why that advice was given.The crux of the issue has been addressed in the latest CLR via In-Process Side-by-Side Execution. In addition to the MSDN documentation I just linked, there is also an MSDN article on the topic: In-Process Side-by-Side.Now, even though the major technical impediment seems to be removed, I don’t know if Microsoft is now officially supporting managed extensions to the shell. Either way, I noticed a CodePlex project that is marching ahead to enable exactly that: Managed Mini Shell Extension Framework. Not much activity there, but maybe it will grow once .NET 4 is released... Comments about this post welcome at the original blog.

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  • What are the relative merits for implementing an Erlang-style "Continuation" pattern in C#

    - by JoeGeeky
    What are the relative merits (or demerits) for implementing an Erlang-style "Continuation" pattern in C#. I'm working on a project that has a large number of Lowest priority threads and I'm wondering if my approach may be all wrong. It would seem there is a reasonable upper limit to the number of long-running threads that any one Process 'should' spawn. With that said, I'm not sure what would signal the tipping-point for too many thread or when alternate patterns such as "Continuation" would be more suitable. In this case, many of the threads do a small amount of work and then sleep until woken to go again (Ex. Heartbeat, purge caches, etc...). This continues for the life of the Process.

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  • Detecting Duplicates Using Oracle Business Rules

    - by joeywong-Oracle
    Recently I was involved with a Business Process Management Proof of Concept (BPM PoC) where we wanted to show how customers could use Oracle Business Rules (OBR) to easily define some rules to detect certain conditions, such as duplicate account numbers, duplicate names, high transaction amounts, etc, in a set of transactions. Traditionally you would have to loop through the transactions and compare each transaction with each other to find matching conditions. This is not particularly nice as it relies on more traditional approaches (coding) and is not the most efficient way. OBR is a great place to house these types’ of rules as it allows users/developers to externalise the rules, in a simpler manner, externalising the rules from the message flows and allows users to change them when required. So I went ahead looking for some examples. After quite a bit of time spent Googling, I did not find much out in the blogosphere. In fact the best example was actually from...... wait for it...... Oracle Documentation! (http://docs.oracle.com/cd/E28271_01/user.1111/e10228/rules_start.htm#ASRUG228) However, if you followed the link there was not much explanation provided with the example. So the aim of this article is to provide a little more explanation to the example so that it can be better understood. Note: I won’t be covering the BPM parts in great detail. Use case: Payment instruction file is required to be processed. Before instruction file can be processed it needs to be approved by a business user. Before the approval process, it would be useful to run the payment instruction file through OBR to look for transactions of interest. The output of the OBR can then be used to flag the transactions for the approvers to investigate. Example BPM Process So let’s start defining the Business Rules Dictionary. For the input into our rules, we will be passing in an array of payments which contain some basic information for our demo purposes. Input to Business Rules And for our output we want to have an array of rule output messages. Note that the element I am using for the output is only for one rule message element and not an array. We will configure the Business Rules component later to return an array instead. Output from Business Rules Business Rule – Create Dictionary Fill in all the details and click OK. Open the Business Rules component and select Decision Functions from the side. Modify the Decision Function Configuration Select the decision function and click on the edit button (the pencil), don’t worry that JDeveloper indicates that there is an error with the decision function. Then click the Ouputs tab and make sure the checkbox under the List column is checked, this is to tell the Business Rules component that it should return an array of rule message elements. Updating the Decision Service Next we will define the actual rules. Click on Ruleset1 on the side and then the Create Rule in the IF/THEN Rule section. Creating new rule in ruleset Ok, this is where some detailed explanation is required. Remember that the input to this Business Rules dictionary is a list of payments, each of those payments were of the complex type PaymentType. Each of those payments in the Oracle Business Rules engine is treated as a fact in its working memory. Implemented rule So in the IF/THEN rule, the first task is to grab two PaymentType facts from the working memory and assign them to temporary variable names (payment1 and payment2 in our example). Matching facts Once we have them in the temporary variables, we can then start comparing them to each other. For our demonstration we want to find payments where the account numbers were the same but the account name was different. Suspicious payment instruction And to stop the rule from comparing the same facts to each other, over and over again, we have to include the last test. Stop rule from comparing endlessly And that’s it! No for loops, no need to keep track of what you have or have not compared, OBR handles all that for you because everything is done in its working memory. And once all the tests have been satisfied we need to assert a new fact for the output. Assert the output fact Save your Business Rules. Next step is to complete the data association in the BPM process. Pay extra care to use Copy List instead of the default Copy when doing data association at an array level. Input and output data association Deploy and test. Test data Rule matched Parting words: Ideally you would then use the output of the Business Rules component to then display/flag the transactions which triggered the rule so that the approver can investigate. Link: SOA Project Archive [Download]

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