Question on Passivation / Activation in the Dev Guide example

Similar Questions

• The unnecessary use of synchronize in code example in the Dev Guide

  I ask this question with some trepidation, I'm sure someone out there will be able to explain it and then I'll feel really stupid asking.  But that's...

  Using a HTTP connection code sample in the developer's Guide (I checked 4.3 and 4.5, and it's the same in these two levels), use synchronized in two places that I don't understand.

  (1) getUrl() - Code follows

  /**
  * Retrieve the URL. The synchronized keyword ensures that one
  * thread at a time can call this method on a ConnectionThread object.
  */
  public synchronized String getUrl() {}
  Return _theUrl;
  }

  I understand the comment, and it is sometimes useful force methods you want to synchronize.  But not this method in vessel closed.  If anything, there are more cases of use of this mechanism for the recovery method in this code.

  (2) around of the fetch block - following Code:

  / * Make sure that pull requests are not missed
  * While the received data is processed.
  */
  {Synchronized (this)}
  Open the connection

  When I see a synchronization block like that, I guess it's a little shared code that can be executed by multiple threads, which this clearly isn't.  So why is it synchronized?

  In fact, I think that 'design' is a testament to this example may be imperfect.  I think it would be better to have a new Thread for each connection, or have a queue (synchronized) URL addressing.

  As evidenced by another thread on this forum, the developers make these samples as Gospel and try to use them.  So if this is wrong, perhaps we could fix.  But maybe it just me being a lumberjack full.  Wouldn't be the first time...  And won't be the last!

  It seems that this example has been designed with a base defense to the following (if no synchronization) scenario:

  Event thread request _start = true.

  Threaded starts the connection.

  Event thread again pray _start = true.

  Threaded end connection, defines _start = false.

  Net result: the second event thread request is not met.

  That being said, the guys are right: this design is mediocre at best.  In the scenario above, the second request of event thread is blocked while the thread of the connection ends... and as everyone knows at this point, blocking the event thread usually leads to a world of pain.  There are certainly better approaches that can be used here, and probably the easiest way to this problem is just to have the best control flow, such as not allowing not a new connection request while one is already underway.  Certainly the synchronization adds excessive complexity to this problem and distracts from what the sample is trying to demonstrate: a simple HTTP connection.

  For this example, and the extraction, I will recommend to the authors that both be reviewed and be a structure such that these samples are as simple as possible.  Thanks to Peter marchywka for their suggestions.  Comments like yours, it's how we identify areas for improvement.

• Code sample NFC in the development guide does not

  Hello.

  I just wrote a quick Hello world app for reading and writing NDEF records, based on the code provided in the development Guide.

  I use the MiFare Ultralight tags. However, it does not work.

  I could write NDEF only once during the tests, but after that I was unable to write the tags again or delete them using my application. However, the application of NFC demo included with the BB is able to write.

  Thinking that the tag doesn't have enough space to store the nested NDEF message of the dev guide, I changed the code (reader and writer) use only a title and url records, without success.

  I also tried to change the parameter listener of NDEFRecord.TNF_WELL_KNOW to NDEFRecord.TNF_ANY, so read the labels already written with the demo included in the BB application, but it has no effect. I have read that sporadically with the two types, but most of the time the BB does not detect everything just the tag.

  Now, I know that:

  • The tag is readable and writable, because I read and written in the plain format ISO-14443-3 and the BB demo readings and Scripture in NDEF.
  • The tag is unlocked and able NDEF (inspected a target using DetectionListener object)
  • A few times I was able to write an NDEF tag, but then it is not readable by my application nor by BB demo group.
  • I have read several times, but most of the time it fails.
  • Tried to erase the label before writing, but does not work.

  I use exactly the same code that appears in the development guide and a BB 9360.

  Finally, I solved the problem. It turns out that my tags (Mifare Ultralight) have only 64 bytes of total storage, so the example NDEFMessage in the development Guide (root NDEF Sp record with two folders nested inside) is too big to be stored when the text exceeds a few words.

  With regard to the NDEFTagConnection class, I found that the erase method throws exceptions, and that the append method is problematic. The only method that worked for me was the write method (who wrote the entire tag).

• AM question of Passivation on the creation of master / details (composition)

  Hi all

  I recently discovered some problems at our request on the passivation of the AOS.

  After reading some time on the web, I disabled the AM pooling on our application for testing on my built-in server that our request is 'activation-safe'

  After that, I have the following error when I try to create a new line on a "actually dated VO:

  java.lang.ArrayIndexOutOfBoundsException: 1
  at oracle.jbo.server.ViewObjectImpl.bldEffectiveDateKeys(ViewObjectImpl.java:15914)
  at oracle.jbo.server.ViewObjectImpl.bldKeysForMovingRows(ViewObjectImpl.java:15736)
  at oracle.jbo.server.ViewObjectImpl.moveRows(ViewObjectImpl.java:16096)
  at oracle.jbo.server.ViewObjectImpl.afterRowUpdate(ViewObjectImpl.java:14096)
  at oracle.jbo.server.ViewObjectImpl.sourceChanged(ViewObjectImpl.java:14395)
  at oracle.jbo.server.EntityCache.sendEvent(EntityCache.java:1557)
  at oracle.jbo.server.EntityCache.deliverEntityEvent(EntityCache.java:1573)
  at oracle.jbo.server.EntityCache.notifyColumnAndBlgChange(EntityCache.java:1629)
  at oracle.jbo.server.EntityImpl.notifyAttributesChanged(EntityImpl.java:7668)
  at oracle.jbo.server.EntityImpl.notifyAttributesChanged(EntityImpl.java:7649)
  at oracle.jbo.server.EntityImpl.notifyAttributesAndBlgChanged(EntityImpl.java:7658)
  at oracle.jbo.server.EntityImpl.setAttributeValue(EntityImpl.java:3828)
  at oracle.jbo.server.EntityImpl.handleEffectiveDateRowCreate(EntityImpl.java:11669)
  at oracle.jbo.server.EntityImpl.handleEffectiveDateOperations(EntityImpl.java:11585)
  at oracle.jbo.server.EntityImpl.validate(EntityImpl.java:2652)
  at oracle.jbo.server.EntityImpl.validateChildren(EntityImpl.java:2364)
  at oracle.jbo.server.EntityImpl.validateEntity(EntityImpl.java:2511)
  at oracle.jbo.server.EntityImpl.validate(EntityImpl.java:2666)
  at oracle.jbo.server.DBTransactionImpl.validate(DBTransactionImpl.java:4577)
  at oracle.adf.model.bc4j.DCJboDataControl.validate(DCJboDataControl.java:1620)
  at oracle.adf.model.binding.DCBindingContainer.validateReferredDataControls(DCBindingContainer.java:4411)
  at oracle.adf.model.binding.DCBindingContainer.validateInputValues(DCBindingContainer.java:4327)
  at oracle.adf.model.binding.DCBindingContainer.validate(DCBindingContainer.java:4259)
  at oracle.adf.controller.internal.binding.TaskFlowRegionController.validateRegion(TaskFlowRegionController.java:311)
  at oracle.adf.model.binding.DCBindingContainer.validate(DCBindingContainer.java:4249)
  at oracle.adf.controller.internal.binding.TaskFlowRegionController.validateRegion(TaskFlowRegionController.java:311)
  at oracle.adf.model.binding.DCBindingContainer.validate(DCBindingContainer.java:4249)
  at oracle.adf.controller.v2.lifecycle.PageLifecycleImpl.validateModelUpdates(PageLifecycleImpl.java:303)
  at oracle.adf.controller.faces.lifecycle.FacesPageLifecycle.validateModelUpdates(FacesPageLifecycle.java:71)
  to oracle.adf.controller.v2.lifecycle.Lifecycle$ 6.execute(Lifecycle.java:190)
  at oracle.adfinternal.controller.lifecycle.LifecycleImpl.executePhase(LifecycleImpl.java:197)
  at $200 (ADFPhaseListener.java:34) oracle.adfinternal.controller.faces.lifecycle.ADFPhaseListener.access
  to oracle.adfinternal.controller.faces.lifecycle.ADFPhaseListener$ 3.after(ADFPhaseListener.java:428)
  at oracle.adfinternal.controller.faces.lifecycle.ADFPhaseListener.afterPhase(ADFPhaseListener.java:88)
  at oracle.adfinternal.controller.faces.lifecycle.ADFLifecyclePhaseListener.afterPhase(ADFLifecyclePhaseListener.java:53)
  at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._executePhase(LifecycleImpl.java:520)
  at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:207)
  at javax.faces.webapp.FacesServlet.service(FacesServlet.java:265)
  to weblogic.servlet.internal.StubSecurityHelper$ ServletServiceAction.run (StubSecurityHelper.java:227)

  
  at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
  at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:300)
  at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)
  at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
  at oracle.webcenter.framework.events.dispatcher.EventDispatcherFilter.doFilter(EventDispatcherFilter.java:44)
  at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
  at oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:205)
  at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
  at oracle.adfinternal.view.faces.webapp.rich.RegistrationFilter.doFilter(RegistrationFilter.java:128)
  to org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$ FilterListChain.doFilter (TrinidadFilterImpl.java:446)
  at oracle.adfinternal.view.faces.activedata.AdsFilter.doFilter(AdsFilter.java:60)
  to org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$ FilterListChain.doFilter (TrinidadFilterImpl.java:446)
  at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl._doFilterImpl(TrinidadFilterImpl.java:271)
  at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.doFilter(TrinidadFilterImpl.java:177)
  at org.apache.myfaces.trinidad.webapp.TrinidadFilter.doFilter(TrinidadFilter.java:92)
  at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
  at oracle.wcps.client.PersonalizationFilter.doFilter(PersonalizationFilter.java:74)
  at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
  at oracle.webcenter.content.integration.servlets.ContentServletFilter.doFilter(ContentServletFilter.java:168)
  at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
  at oracle.adf.library.webapp.LibraryFilter.doFilter(LibraryFilter.java:180)
  at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
  to oracle.security.jps.ee.http.JpsAbsFilter$ 1.run(JpsAbsFilter.java:119)
  at java.security.AccessController.doPrivileged (Native Method)
  at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:324)
  at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:460)
  at oracle.security.jps.ee.http.JpsAbsFilter.runJaasMode(JpsAbsFilter.java:103)
  at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:171)
  at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:71)
  at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
  at oracle.dms.servlet.DMSServletFilter.doFilter(DMSServletFilter.java:163)
  at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
  at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)
  at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
  to weblogic.servlet.internal.WebAppServletContext$ ServletInvocationAction.wrapRun (WebAppServletContext.java:3715)
  to weblogic.servlet.internal.WebAppServletContext$ ServletInvocationAction.run (WebAppServletContext.java:3681)
  at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
  at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
  at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2277)
  at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2183)
  at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1454)
  at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
  at weblogic.work.ExecuteThread.run(ExecuteThread.java:178)
  
  

  If the AM pooling is enabled, no errors...

  No idea what means this exception?

  I use JDev 11.1.1.7, let me know if you need additional information on the VO, entity or something else...

  Many thanks for the suggestions,

  So what solved my problem was simply uncheck the "cascade update key attributes" relative to the association (composition). I still don't understand why that would be a problem to check if...

  No restrictions on Association (composition) with the option "Cascade update key attributes" checked when passivation/activation takes place on a newly created on two line master-detail VO?

• Legacy of the entity and Passivation/Activation

  Hi all
  
  I use:
  
  11.1.1.56.60 ADF business components
  Java (TM) Platform 1.6.0_18
  Oracle IDE 11.1.1.3.37.56.60
  PMD JDeveloper Extension 4.2.5.3.0
  Support versioning 11.1.1.3.37.56.60
  
  
  It seems I have a problem with the legacy Etity and Passivation/Activation of States.
  
  I unchecked the AM pooling and behavior is very very strange.
  The strange thing is that I tried to follow the Documentation of the ADF for this and still have a problem.
  It seems that activation does not work properly
  
  
  I created a sample application and more details on my case here:
  
  http://dstas.blogspot.com/2010/11/entity-inheritance-and-passivation.html
  
  
  Please tell what I'm doing wrong.
  
  Thank you in advance.

  Hi Dimitris

  Followed to the poster of 'anonymous' on your blog, I tried your demo on 11.1.1.2.0 and I see the same problem. I suggest you submit your test Oracle Support to work through detailed case.

  CM.

• Active shared review the file GUID

  If a PDF file is enabled shared review and then the original PDF (not the shared review one) is copied and renamed and then shared review, the two will have the same GUID?

  They will have all two same ID MASTER, but not the same INSTANCE ID.

  PDF files have two pieces of identification. The original that was given at the time of creation and the other one which is changed whenever the document is updated.  Activation for shared review will change this last (instance ID).

• Protégé M200: Question about Vista TPM and the Bitlocker

  You want to know if I have a TPM chip to launch bitblocker on the M200 using Vista. Just call Toshiba Technical Support - the guy was totally distraught!

  If I don't have a TPM chip, then I can install it?

  Hello

  It is a good question. To my knowledge the Portege M200 does not support TPM but the Portege M400, R400 module and the R200

  But the Bitlocker, which is only available on the Vista Enterprise and ultimate can also be used without the TPM chip but then some functions are not available; for example, the SecureBoot.
  Without TPM only the OS volume encryption is available.
  In this case you can encrypts the entire Windows volume including both data and file system user, the file of hibernation, the page file and the temporary files.

  Using volume of BONE (HDD) encryption an encryption key will be generated. This key will be written to the USB and then the USB is required!

  AFAIK the Bitlocker requires 2 partitions. A partition must be created as needs at least 50 MB primary partition. I recommend a? about 1.5 GB
  The second big partition Vista can be installed.

  After the installation of Vista the Bitlocker must be enabled in Group Policy (units without secure TPM). This can be done using the command 'gpedit '.
  And then under models of administration-> windows components-> Bitlocker bitlocker function can be activated!

  Anyway, there is much information Bitlocker and I think you should also consult the Microsoft Web site for more information:
  BitLocker Windows Drive Encryption step-by-step guide

  I hope I could help a little

• Why can I not see my rings of friends activity in the application of the activity

  MY girlfriend and I have updated our watches to OS3 and our phones to ios 10.  I want to be able to share our business segments while I travel.  We set up the sharing in the application of the activity on our two phones properly, she can see my activity sounds, as well as its own however on my phone I can only see my rings.  Her rings all show 0...  She shares his activity with a colleague and she could see her too but he did not see his.

  The strange only that we noticed, it was a trait on his 'me' page in the shared activity section which said "you can also share your activity from another device signed your iCloud account. I say strange because it shows a single associated with his account and it is the only watch shown in the list of devices.

  So far I have puzzled friends Apple local Store, and I thought I would do it because both operatlong systems are so new, but to try here and e s if everyone had seen this problem.

  Thanks for reading,

  S

  Hi funkypickl,

  The application of activity is a great way to share your progress with friends and family! There are a few reasons why you are unable to see the activity and progress of your friend. It may be quite possible that activity can be deliberately hidden from your view. Or you can get an invitation that you have not agreed to your girlfriend to view activity pending. Finally, with an internet connection or stable data is required for updates and progress of the activity. Please take a look at the link below for some tips that should solve your problem.

  Share your activity with your Apple Watch

  Special attention to what follows below is in the article above
  
  

  To check waiting for calls,

  Open the application of activity, tap the sharing tab, and then click Sharing. Once your friends accept the invitation, they will appear in the section sharing of enforcement activity on your iPhone.

  Stop sharing or hide your progress

  To stop sharing of activity:
  Open the application of activity on your iPhone.
  Tap sharing, your friend.
  Press to delete a friend. If you do that, they can't see your activity, and you can't see their activity. To begin sharing again, send your friend a new invitation.
  To hide your activity:
  Open the application of activity on your iPhone.
  Tap sharing, tap the friend you want to hide your activity.
  Tap hide my activity. You can still see your friends ' activity, but they do not see your activity.
  To start sharing again, click Show my activity.

  Get help with sharing activity

  Activity sharing requires iOS 10 and watch OS 3. If more than one Apple Watch associated with your iPhone, the sharing tab appear not in the activity until you update all your watches to watch OS 3.
  If you are unable to add a friend, make sure you have a Apple Watch and that you have not added the maximum number of friends. You can add up to 25 friends.
  If your iPhone can connect to the Internet and you are connected to iCloud, you can get the updates relating to the activities of your friends every day. If your iPhone can not connect for several days, or you disconnect from iCloud, you may see missing days.

  Please use the Apple Support communities to post your question. This information should have you look at progress of the activity of your friend in no time!

  Take care.

• Since the update to vn 7.0, my cursor is not active on the top of the page several lines of a Web page. Microsoft quotes compaibility trouble, help please

  For example, at the top of this page, the cursor is not active during the disconnection, inbox etc on the top line. Even on web pages

  The top of the Firefox window is unresponsive, inadmissible toolbars - see also the problematic extensions

  • caused by the toolbar Yahoo- https://support.mozilla.com/questions/890908
  • caused by Babylon Toolbar - https://support.mozilla.com/questions/890670

• iPad cannot be activated because the activation server is temporarily unavailable

  I've updated my ipad with recent IOS.  Now my ipad cannot be activated because the activation server is temporarily unavailable.  Any suggestions?

  have you contacted apple support team, question do you have to solve the problem seen yet, remember the question, waiting for the support team! hope it's a simple solution to solve

• On closure of my MacBook Pro always get question "continue application"? with the boxes option to cancel or continue the request.

  On my Mac Book Pro to always stop get question "continue application"? with the boxes option to cancel or continue the request.

  Selection of abandonment does not prevent the following message appears when closing next down.

  Activity monitor shows all the applications that you have

  installed, running in the background? Something can be...

  If you open the force quit, are there topics other than the Finder

  and maybe a browser?

  You repaired the disk from disk utility permissions lately?

  We could also see other boot options on the use in

  Recovery of OS X to use the "OS X Utilities" in there. Be careful.

  Is there more than one user account on your computer? If you

  Start in another user account and have auto login for

  the fact that it is one that rises at the start, a piece

  similar issues or is it just works fine on shut down?

  The question may take some trial and error troubleshooting. This

  may include some basic startup keyboard shortcuts for

  the computer to start in Safe Mode, to do more test, etc.

  If you have access to an official Apple store, you can be

  able to set up an engineering appointment & have someone closer.

  Good luck anyway...

• Windows 7 Media Center will not download the new guide listings

  Hello

  I am really frustrated. WMC will not download the new guide listings and I tried all the patches that are supposed to be that I found in this forum. I also tried the system restore, which did not fix the problem. Obviously the problem is not affected by the restore program.

  I was able to determine that there is some kind of corruption of the WMC files that Windows 7 can not solve (according to the event log).

  I'm a bit exasperated at the tenacity of this problem. Y at - it a reliable fix or I need to reinstall Windows 7?

  Thank you

  Hello Long777,

  You have the update for Windows Media Center installed?

  Click on the article below:
  KB Article ID: 2284742 -October 2010 Cumulative Update for Windows Media Center in Windows 7

  You may be able to force a manual update. Do an update (weekly) to TV Guide through the menu system.

  If this does not help, you might want to ask your specific question to http://.www.thegreenbutton.com \forums

  I hope this helps.

  Thank you

  Marilyn
  Microsoft Answers Support Engineer
  Visit our Microsoft answers feedback Forum and let us know what you think

• I have an error that says"the application-specific permission settings do not permit grant local activation for the application of the COM CLSID/w Server (BA 126ADI-2166-11 D 1-B1D0-0008 (OSFC1270))

  The error indicates that the application-specific permission settings do not grant approval to local activation for the application server COM with the CLSID (BA 126ADI-2166-11 D 1 - BLM - OO8 OSFC127OE) to the user NT Autoritative / network service SID (S-1-5-20).  The error message says it can be changed by using the component services administration tool.  I can't say what to do when I get to the admin tools.  Can you help me..

  Hi mildrednorcross,

  1. when exactly you receive this error message?

  2. is your computer connected to the server or the domain?

  If your computer is on a domain network, your question will be better suited for the IT Pro TechNet public. Please post your question in the forum TechNet for assistance:

  http://social.technet.Microsoft.com/forums/en/itproxpsp/threads

  Hope the helps of information.

• Vista activated on the old hard drive hard disk failed to load to the new disk hard wont let me enable

  Vista activated on the old hard drive, failed loaded hard drive vista Ultimate edition on the new hard drive, but do not let me activate. This is a saved copy and use the product from the back of the disc that contains key

  Hi Tony,.

  I imagine the inconvenience that you have experienced, but don't worry, we are here to help solve the problem and guide you in the right direction.

  You can go through the steps in the link activate Windows Vista by phone activation.

  Hope this information is helpful and let us know if you need more assistance. We will be happy to help you.

• A Wi - Fi and 3G connection active at the same time?

  Maybe this is a stupid question.  I noticed at work today, my WiFi and 3G are both active at the same time.  For all I know, the WiFi is working and not a false indication as I sometimes get at home.  In addition, my 3G indicator shows and seems to be moving a lot of data.

  As I have already noticed, I usually have one or the other, unless he is changing course, or WiFi is falling out or something.

  Any ideas on that?

  Thanks for the help.

  Mark

  It's normal.  3G is not turned off when WiFi is on.  Properly connected WiFi will increase your 3G but not a substitute. -Mark