Tips and advice from Expert in the APEX

Similar Questions

• [ADF, JDev12.1.3] Java webservice class methods mapping: which are the best practices? I seek advice from experts...

  Hallo,

  in my application (let's call it "MyADFApp"), I created a Java class (let's call it 'Services') which maps simply a C++ application methods (let's call it "Différendsapp") similar to a Web service.

  "Différendsapp" works on the same machine where the "MyADFApp" (works on Glassfish).

  I need to use the 'Services' methos both in the model layer and ViewController so:

  • I imported 'Services' in the AppModuleImpl
  • I created in the AppModuleImpl method for each method of 'Services '.
  • I exposed these new methods of AppModuleImpl for the ViewController
  • I configured class 'Services' to call "Différendsapp" on localhost since it runs on the same computer in 'MyADFApp '.

  In AppModuleImpl, I can call 'Services' methods directly while controlled beans think I call these methods to help

      BindingContext bctx = BindingContext.getCurrent();
      BindingContainer bindings = bctx.getCurrentBindingsEntry();
      OperationBinding operationBinding = bindings.getOperationBinding("ServicesMethodToCall");
      operationBinding.getParamsMap().put("param1", param1value);
      operationBinding.getParamsMap().put("param1", param2value);
      operationBinding.execute();
  
  

  I am a beginner and I would like to know by experts if the instinctive approach I follewed is good or not and if JDev/ADF offers me a better way to use my class of 'Services '.

  For example, I tried to convert my class of 'Services' in a DataControl and I wonder if will work it after you have configured the class to use localhost or not.

  I wonder if after you have configured the class to use localhost will work in the case I have to import/use also the class directly in managed bean (which I did in AppModuleImpl).

  I would be happy if you could answer my questions and give me some explanation.

  Thank you

  Federico

  Refer

  https://groups.Google.com/Forum/#! subject/adf-methodology/9NPM6J64f0E

  http://www.Oracle.com/technetwork/developer-tools/ADF/learnmore/92-cache-WS-queries-523136.PDF

• VMware infrastructure management - time necessary to do the job? Tips and advice needed please.

  guys / girls - some notice on the amount of work required to maintain and develop a VMware Infrastructure setup as follows:

  9 blades (BL 465 & 685) HP connected to an EVA 8000 (double fabric connected)

  Set up 2 separate HA /DRS Clusters running ESX 3.5 Update 3

  130 virtual machines, mainly under windows 2003 (backup VCB full every night)

  How many hours per week would you say, in your experience, should maintain, troubleshoot and develop (stay up to date with patches, etc.), critical infrastructure of this size in an enterprise environment with 2,500 users (IE if something goes wrong then there will be serious questions asked). The job would mean ensuring full availability etc. and a capacity of DR.

  Be as conservative as you like, duties include looking after the equipment, and (with HP support relevant contracts), could understand you short if possible reasoning. The turnover of virtual machines is about 2 per week.

  Hello

  last part of the puzzle is man how many hours per week would you must employ a person to perform the infrastructure once implemented. (ie. verification of backups, torubleshooting of performance issues, the provisioning maybe some new virtual machines per week, now patch levels and take care of the equipment, etc..)

  For this size environment, I would have a virtualization full-time administrator who works closely with your storage, network, server and application teams to solve problems. Almost everything from the beginning will be considered a problem of virtualization. You need a good plan on how to handle this. You will need a team made up of members of other teams to manage all possible problems.

  Again be as conservative as you want. I'll assign the points after this bit.

  I probably aim for at least 2 people for full redundancy. The work does not stop when you're on vacation.

  3-9 guests can be easily managed by a single person, but we're going to do a bit of math...

  150 VMS to start...

  Let's say you need to VMotion all 150 VMs... Say 30 seconds per VM, if 150 * 30 = 1.25 hours = average 2.5 hours of interruption, etc..

  Let's say you need to SVMotion all 150 VMs... 1 GB/s with an average 24 GB per VM so 3 working day in SVMotion tell everything... Closer to 1 week. Its a drive problem.

  Now add both to:

  Debugging problems of enforcement...

  Debugging problems of storage...

  Debugging network problems...

  Guest operating system problems debugging...

  Debugging problems ESX...

  Debugging performance issues...

  And the time to add:

  Reports required by management...

  Duration of training...

  New implementation time VM...

  Nerw material planning...

  DR testing and planning...

  etc etc.

  It is at least 1 person complete if not 2.

  Best regards

  Edward L. Haletky VMware communities user moderator, VMware vExpert 2009, url = http://www.virtualizationpractice.comvirtualization practical analyst [url]
  "Now available: url = http://www.astroarch.com/wiki/index.php/VMware_Virtual_Infrastructure_Security' VMware vSphere (TM) and Virtual Infrastructure Security: securing the virtual environment ' [url]
  Also available url = http://www.astroarch.com/wiki/index.php/VMWare_ESX_Server_in_the_Enterprise"VMWare ESX Server in the enterprise" [url]
  [url =http://www.astroarch.com/wiki/index.php/Blog_Roll] SearchVMware Pro [url] | URL = http://www.astroarch.com/blog Blue Gears [url] | URL = http://www.astroarch.com/wiki/index.php/Top_Virtualization_Security_Links Top security virtualization [url] links | URL = http://www.astroarch.com/wiki/index.php/Virtualization_Security_Round_Table_Podcast Virtualization Security Table round Podcast [url]

• HP Pavilion Media Center m8200n Desktop PC upgrades tips and advice help.

  Hello everyone I have a HP Pavilion Media Center m8200n desktop PC that I'm looking to upgrade. Can someone please advice me on the following topics:

  Memory: What is the best possible that my system can contain that currently, I am running windows 7 ultimate 32 bit

  Video card: I'm looking to install a decent video with hdmi support card that my system can contain I am aware that I can not use certain cause of my ability video cards, the upgrade of the power may be an option. Can someone advice me please on these subjects, it will be very appreciated thanks everyone I'll be sure to rep and appreciate all help thanks.

  Without replacing the power supply, the EVGA NVIDIA GT 240 1 GB GDDR5 should work. This card is spec'd for a PSU with 18 amps of bus + 12 volts. This card can stretch your PSU, but give it a try.  I have this card in my system of m9200t.  This card will give the treatment a real helping hand from your video.

  Review the specifications of performance ATI and NVIDIA . Look at the specifications of strip memory bandwidth and level of DirectX support.

  How to replace a video card.

  Your PC will not work with memory dual channel and the processor will dictate the speed of transfer.  Wait for the upgrade of the processor until you see how the system works.

• Slow opening Excel file with MACRO and links from network on the Desktop view file server compare to physical PC

  Hi guys,.

  It's a weird thing.

  I just encountered a very strange problem when you open one of the excel files located on a Linux Samba Shared running file server.

  My laptop physics has a Dual Core 2 Duo 2.27 GHz, 4 GB of RAM and Windows 7 Pro 32-bit.

  My Desktop view has 2 vCPU (UC from host to 2.99 GHz/Core with base 16), 4 GB of RAM and Windows 7 Enterprise 64-bit.

  Note: The Desktop view is located on the FusionIO card locally on the server, so it is lightning fast.

  When I open excel file from my physical office, need you 3 seconds to open and 5 seconds to enable the content (because it is a big xls file with a bunch of MACRO and LINKS to a different worksheet)

  When I opened that same excel view Desktop file, it takes you 18 seconds to open and 1 minute to activate the content.

  Anyone happened to have the same problem with their environment to experience?

  Do you mind sharing some tips to solve this?

  Finally, be able to locate the problem.

  It was Sophos EndPoint AV for vShield that I deployed for assessment.

  Once I turned off politics, everything is back to normal.

  Couldn't believe that via vShield endpoint was causing all this because I tried Symantec and BitDefender for vShield before and no problem at all.

  Well.

  I hope that Sophos or VMware vShield team has a solution for me.

  Nice day!

• State protection of session and browsing to URLs outside the apex

  Hello
  I'm working an application, in which basis on a unique key for each customer, and I show you her address on map (google.api) I used the apex util to prepare the url and activate checksumprotection on that element for success.
  I have another page that is the customer also details on this unique base, which works great as its peak in only
  what I notice is that, when I browse to url (maps.google.com) external session is different from what I had originally, posing problem when I want to navigate from card (java script Info window) to access details by using the same unique key of the client.
  I read that it was a bug in 4.1, but I use 4.1.1 assuming that the bug has been fixed.
  
  DB 11G
  Oc4j
  Linux
  
  Kindly help

  Hello Red Bull,

  Following article will help you to google maps api integration through web services:

  [url http://www.oracle.com/technetwork/developer-tools/apex/application-express/integration-086636.html#GOOGLE] Request Express integration with Google Maps

  OR

  You can try just of plugins available on http://apex-plugin.com.
  One of them which can be your help is:

  [url http://apex-plugin.com/oracle-apex-plugins/item-plugin/location-map-image_97.html] View the location on a Google map

  by @Peter Raganitsch including the blog post is:

  http://www.Oracle-and-apex.com/plugin-location-map-image/

  I hope that helps!
  Kind regards
  Kiran

• I can't copy and paste from Word to the Internet (Firefox or Chrome), but I can copy and paste from the Internet to Word

  I can't suddenly to copy and paste text from Word to the internet (Firefox or Chrome, other Web sites or e-mail), but I can do the opposite. Any ideas? Copy paste works between Word documents and it works between websites (for example, e-mail web page), but not the word to the internet. Help, please. I need to copy and paste my CV to apply for jobs online.

  Great answer. You just saved my HP to learn to go through walls.

• Advice from professionals for the amateur of the MNA

  Hi everyone I hope you have all had a good Christmas and new year.
  
  So my profession is not software engineering and civil engineering (roads, infrastructure, structures, etc.), but I spent years teaching java in my own time and passed the SCJP return in 2010 (I found it an excellent tool to guide me on what to learn and make me learn things that I might not have otherwise). I find java a very useful tool for the work and studies (including my independent study of the year last for my degree).
  
  Even though I am a self-taught amateur, I am well aware, there is a difference between knowing the fundamentals of Java and know how to establish a solid piece of software, and although I got by ok so far, I would like to take my skills to the next level.
  
  I had in my mind to make the developer Java SE 6 after I went SCJP 6 but of course Oracle bought Sun and brought in training required Oracle as part of the requirements. Although I would be happy to make the training realistic I can't afford or justify the formation of my back but I did not like the noise of the [development Applications with the Java SE 6 platform | http://education.oracle.com/pls/web_prod-plq-dad/db_pages.getpage?page_id=609 & p_org_id = 28 & lang = US & get_params = dc:D61860GC10] [, p_preview: N] training, because not only that looks like it covers tips for Developer certification (incase I decided to do), but it would apply the stuff to improve my skills.
  
  I have looked everywhere for similar resources such as books, but have not been able to find anything too convincing. I know that I can not actually real-world experience to learn some of these skills, so my question is did anyone know books or countries that would help someone like me? Give me advice of best practices for the creation of good quality java software?
  
  Thank you.

  We will here my two cents worth:
  Roughly speaking, there are desktop development and development based on the web (there are others). I think that the market for web-based development work is much bigger and I would recommend this path rather than office development. If I understand correctly, web development is divided into browser-based applications and mobile device applications. I'm a developer of browser and I will only talk about this.

  There are countless frames in use for the development of browser based applications. I suggest stick you with the more commonly used ones and not ones that few have heard of (especially employers). Some technologies you should finally become familiar with is: JSP, JSF, Servlets, JDBC, Hibernate, JPA, Struts, Spring, Ant, Maven, JEE6 stack, XML, Web Services, etc. You can read about what these technologies do before you decide you want to read about in detail.

  Some of these technologies are old (JSP and Struts to name but two), but countless programs have been written in them and you'll probably sooner or later (more probably more sooner) find a job where you have to debug and improve their. Since you seem to have web experience and if you consider taking this route, I suggest that you get a book on JSP/Servlets and read online on JDBC. Create a web application that reads data from a database table, it displays and allows the user to update data using MVC design (many web applications rely on filling out the forms). Add validation. Then refactor the project again and again to get it looking for professionals. When you have that down Pat, I suggest you go on JSF. You can optionally enter the spring (I would avoid Struts), but that's a topic for a later date.

  I have read many books on different technologies, as the years have not met all that will take you step by step on setting up of a professional web application of complete best practices from scratch with just about all the services, you must generally. I guess that nobody does because each new requirement of web application is rather unique so that the authors prefer not to give an example of design while there are countless services and configurations of services. In addition, their example probably wil become obsolete soon enough.

  Finally and above all:
  kith.org/jimmosk/Disclaimer2.html

• Synchronization and backup from iPad to the computer using iTunes

  Since the last update, last week, did someone else with problems of synchronization/backup of their Air iPad with their computer via iTunes?  iPad OS 10.0.2, iMac OS X Lion 10.7.5 Air (updates is no longer available for this computer). I had no problem before this last update.  -Pop-up message on the computer: "iTunes could not connect to the iPad...". my name... because an invalid response was received from the device. ' Pop up message on the iPad at the same time: "trust to this computer?  Your settings and your data will be available from this computer when connected.  "Option click on TRUST or don't trust.   I clicked on the TRUST several times without success.  Please help me if you can.  Thank you.

  There is no alternatives that save to iCloud instead of it, or upgrade your software and/or hardware to run a newer version of iTunes.  iOS 10 requires iTunes 12.5.1 find which demands in turn 10.9.5 OSX or newer.

• Moved to the new server and updated applications upgraded to the APEX, 4.2.6.00.03 and get the random error when using IE 11.

  Hello

  I just moved a set of applications on a new server running Oracle 12 c and APEX 4.2.6.00.03, applications where initially on Oracle 10 G database with APEX 3.2.

  When you access via IE 11 users receive the error message after, when it appears that the only way to clear it is to close IE and reopen the application.

  

  There is an application that uses a database to MYSQL link, but the error when you use applications that do not use the link, so I'm not sure how to solve the problem.

  The error does not appear when you access applications through Chrome, but not all users have installed chrome.

  Thank you

  Ronnie

  Well Ronnie,

  This thread suppose to have a problem like yours and resolved. Please try on your side:

  After the footer I use: dbms_session.close_database_link ('mysql_databaselink_name');

  Please Urgent help on ora_sqlcode :-28500

  It will be useful.

  Thank you

  Sunil Bhatia

• Need advice from configuration to the flash cache multi-node RAC/ASM

  We have a database of CARS to work two nodes. We install a new fusion 640 GB flash card in each node. The is a double card, so that it shows up as two devices: / dev/fioa and/dev/fiob on each node.
  We have created two groups of private drives, one on each node. The Group of disks on node 1 is '+ FLASHCACHE' and the disk on node 2 group is "+ FLASHCACHE2".
  
  We have not found specific examples of how to configure the parameters of the init for flashcache on RAC/ASM. We guess that we must do the following. If anyone would be critical and confirm or suggest something different, we would appreciate it very much!
  
  "prod1.db_flash_cache_file ='+ FLASHCACHE/flash1"
  prod2.dg_flash_cache_file = '+ FLASHCACHE2/flash2'
  * .db_flash_cache_size = 600G
  
  Thanks for any advice.
  
  Jim
  
  Published by: jimbev90 on January 5, 2012 08:18

  Hi Jim,.

  prod1.db_flash_cache_file='+FLASHCACHE/flash1'
  prod2.dg_flash_cache_file='+FLASHCACHE2/flash2'
  *.db_flash_cache_size=600G
  

  Your configuration is correct.

  Smart Flash Cache database is not shared across RAC nodes. It is private to each RAC instance. For this reason, each RAC instance must define its own local cache of flash file path. When the flash cache is managed by ASM, a separate diskgroup is necessary for each instance flash cache.

  You can use ALTER SYSTEM for db_flash_cache_size set to zero to disable the flash cache. Alternatively, you can use ALTER SYSTEM to deliver the flash cache to its original size to reactivate it.

  Read this white paper Oracle database Smart Cache Flash
  http://www.Oracle.com/technetwork/articles/systems-hardware-architecture/Oracle-DB-smart-Flash-cache-175588.PDF

  Kind regards
  Levi Pereira

• data synchronized and merged from all of the added devices?

  Is the first device I sighn in too the device main leader of all computers that will get the data? or they all merge together?
  I mean, I have two computers, a netbook and a laptop.
  The laptop is one that has all the correct addons and preferences and bookmarks, I just need things to sync on the netbook.
  Thank you:
  With regard to:
  Melissa Cox.

  The data of all connected devices will merge on the server and will be distributed to all necessary devices.

• The SD/USB card to lighten adapters really work with the import pictures and videos from cameras to the iPhone now?

  It works and if so it is important the photos in the Photos app on an iPad?

  ?

• How can I make an adf:tree even example 150 tips and tricks from Steve

  Hi all
  can you explain me 150 example
  "A tree showing the parent nodes needed for filter Matches.
  without filter to only show me the tree of the adf
  and how can I do a tree and view in detail criteria
  If by screencasts, it will be much better
  
  Note: I use jdeveloper 11 and scott schema
  Best regards
  Forakora

  For a basic on trees tutorial, see:

  [Objectives and accessors trees | http://www.oracle.com/technology/oramag/oracle/09-jul/o49frame.html]

  This specific example is something a little more complicated to ensure that lines which are parents of rows that meet the filter clause is also included in the query. Unfortunately I have no other documents available on this demo.

• Tips on how to get attached with Nikon D810 and Lightroom - I tried with the uSB cable but Lightroom does not recognize the camera. My memory card has no images on it that I read somewhere that it can slow things down if it has pictures on i

  I tried to use the uSB cable, but Lightroom does not recognize the camera. My memory card has no images on it that I read somewhere that it can slow things down if she has no images on it

  If you use Lightroom CC / 6 on a Mac OSX El Capitan you must update to the latest version of CC 2015.4 / 6.4. Problems with Nikon capture home has been fixed in the latest update, the lis below.

  Lightroom Journal | Tips and advice straight from the Lightroom team.