How does the synchronization, the persistent store

I have number of persistent store for the storage of data, etc.

When I handle a store (addition, deletion or update), should I need to block the manipulation on another store?

as there is no reviews for the class being thread-safe, I suggest that you synchronize access yourself.

Tags: BlackBerry Developers

Similar Questions

  • Editing an object that I stored in the persistent store

    I store a custom object in the store persistent and would like to add a new Member.  Someone knows how can I do this?  I'd rather not delete it and store an object in its place because what happens if I need to add more members in the future.  This would encourage me to juggle all versions of my object.  Is there a kind of model for version control that I can apply to my objects stored persistently?

    I don't think it will work.  The link that you say talk us too much serialization, but the persistent object is not serialized as part of persistence.  If you want to serialize her, you should do it yourself.

    I'm guessing that you did not design your class being "expandable". And I'm guessing that you do not want your users to have to recreate these data.

    So I investigate an approach to migration.  In the code that gets the persistent store, got it get the object persistent, then check that it is indeed a picture of your old items.  If it is, convert it to an object type, store it in a collection (vector or Hashtable as suggested, for example) and keep the result, by replacing your old array of persistent storage object.  So your new application includes the old class of objects, exactly as it was, which means that you can install it on top of your existing application.  But once your request is used at the same time, the old persistent object is no longer used.

    Does make sense?

  • IT detect policy "allow third party applications to use the persistent store" by program

    Our application uses the persistent store widely, and we try to find a way to fail gracefully, with a coherent, when the it policy error "allow third-party Apps to use persistent store" is disabled.

    Ideally, we would detect this setting programmatically and displays an error to the user to inform them that this is the condition that prevents us from running.  It seems that the ITPolicy class in net.rim.device.api.itpolicy would allow us to do, but I can't understand what I asked for to verify this IT strategy value - I can't find documentation on most of the system properties how to query their status and try the guess of getBoolean ("AllowThirdPartyUsePersistentStore", true) does not appear to return the correct value.

    Or, if there is a better way to detect this State, that would work too.

    Thank you.

    Hello

    The settings to use in the class plan ITPolicy to the ITPolicyTemplate2 of the BlackBerry Enterprise Server BESMgmt database table.

    for the "allow third-party Apps to use store persistent' policy, which is a 24 tag and subtag of 17. However, please pay special attention to the it policy Description:

    This rule is obsolete. || Specify if third-party applications on the BlackBerry smartphone can use the RIM store persistent application programming interface (API). || Computers handhelds with OS version 3.x and below must use policy AllowThirdPartyUsePersistentStore IT. | The 4.0 and later versions must use application control policy. || If you do not set this rule, a default value of True will be used. || This rule applies only to the BlackBerry Java-based instruments version 3.6.0 by 4.0.0.

    A complete list of policies COMPUTER located in the reference of policy here: http://www.blackberry.com/btsc/search.do?cmd=displayKC&docType=kc&externalId=6199802&sliceId=&dialog...

    Tariq

  • increase the size of an array stored in the persistent store

    Hello

    I have a question.  I use the persistent store to store the data.

    When there is a new medium, I need to add it in this table.

    The problem is the size of the table is fixed, how do I re - set the size of the array? and save the persistent store return?

    Thank you

    Yes, vector will be better because you can't copy items.

    If you use the simple table of data types would be more effective, I think, you can take a look at Arrays.fill, then.

    No referenced objects are captured by garbage collection.

  • Object named 'record' is not found in the persistent store

    When I access portlet, I got the following error on side producer portlet:
    Could someone help what they indicate:

    Thank you
    Root cause of ServletException.
    oracle.portlet.server.container.InvalidRegistrationException: oracle.portlet.server.containerimpl.ContainerObjectNotFoundException: Object named "registration" could not be found in the persistent store.
         at oracle.portlet.server.containerimpl.ConsumerRegistration.<init>(ConsumerRegistration.java:88)
         at oracle.portlet.server.containerimpl.ResourceServlet$ResourceRequestWrapper.<init>(ResourceServlet.java:138)
         at oracle.portlet.server.containerimpl.ResourceServlet.service(ResourceServlet.java:93)
         at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
         at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
         at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
         at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:292)
         at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)
         at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
         at oracle.security.jps.ee.http.JpsAbsFilter$1.run(JpsAbsFilter.java:94)
         at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:313)
         at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:413)
         at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:138)
         at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:70)
         at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
         at oracle.portlet.server.service.ContextFilter.doFilter(ContextFilter.java:101)
         at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
         at com.bea.content.manager.servlets.ContentServletFilter.doFilter(ContentServletFilter.java:178)
         at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
         at oracle.adf.library.webapp.LibraryFilter.doFilter(LibraryFilter.java:159)
         at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
         at oracle.dms.wls.DMSServletFilter.doFilter(DMSServletFilter.java:230)
         at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
         at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)
         at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
         at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3593)
         at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
         at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121)
         at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2203)
         at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2109)
         at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1427)
         at weblogic.work.ExecuteThread.execute(ExecuteThread.java:201)
         at weblogic.work.ExecuteThread.run(ExecuteThread.java:173)
    oracle.portlet.server.containerimpl.ContainerObjectNotFoundException: Object named "registration" could not be found in the persistent store.
         at oracle.portlet.server.containerimpl.persistence.ConsumerPersistentStorage.get(ConsumerPersistentStorage.java:83)
         at oracle.portlet.server.containerimpl.ConsumerRegistration.<init>(ConsumerRegistration.java:69)
         at oracle.portlet.server.containerimpl.ResourceServlet$ResourceRequestWrapper.<init>(ResourceServlet.java:138)
         at oracle.portlet.server.containerimpl.ResourceServlet.service(ResourceServlet.java:93)
         at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
         at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
         at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
         at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:292)
         at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)
         at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
         at oracle.security.jps.ee.http.JpsAbsFilter$1.run(JpsAbsFilter.java:94)
         at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:313)
         at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:413)
         at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:138)
         at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:70)
         at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
         at oracle.portlet.server.service.ContextFilter.doFilter(ContextFilter.java:101)
         at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
         at com.bea.content.manager.servlets.ContentServletFilter.doFilter(ContentServletFilter.java:178)
         at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
         at oracle.adf.library.webapp.LibraryFilter.doFilter(LibraryFilter.java:159)
         at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
         at oracle.dms.wls.DMSServletFilter.doFilter(DMSServletFilter.java:230)
         at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
         at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)
         at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
         at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3593)
         at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
         at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121)
         at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2203)
         at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2109)
         at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1427)
         at weblogic.work.ExecuteThread.execute(ExecuteThread.java:201)
         at weblogic.work.ExecuteThread.run(ExecuteThread.java:173)

    You try to migrate a portlet in JDev 10135 FOR PS1? If so, you can try to do the following:

    -Create a consumer with portlets of the server application embedded in 10.1.3.5
    -Open jdev PS1 and import the settings of the 10.1.3.5 system directory
    -Refresh record producer
    -Run the page again

    I hope this helps.

  • How does the virtual machine BACK to Windows?

    How does the NTVDM?  I run an old DOS program written in Fortran 77, which, with the exception of the database has not changed in 20 years.  It takes about 2 hours to start a business.  My boss told me that I can get a better computer.  Upgrading my computer 3 GB RAM maximum 4 GB will make a difference.  When I use the MEM command, I thought that the memory in use is what I take BACK used, approximately 1 MB.  Am I missing something?  More RAM can help?  Help a different CPU architecture?   The little knowledge by going to various sites, I have gained seems to tell me that dual core or quad processors are unnecessary because BACK is a single processor and use it exclusively.  How about a faster chip.  Is there a limit to the speed that is finished on the BACK.  Then addresses NTVDM maybe all these problems Unlike DOS itself.

    Thanks for your help

    Hello

    Your question better asked during the Forum of Microsoft virtualization, for more specialized assistance on this issue, please repost your request here:

    http://www.Microsoft.com/virtualization/en/us/community.aspx

    Kind regards
    Manasa P - Microsoft Support

     

  • How does the trash?

    OT: Trash.

    How does the trash?

    It seems to be a "sandbox", but a reference to the storage space on each disk.

    I can't find a real situation for the trash

    If I delete a file from the c: drive or the drive e: is the deleted file stored in a different location or the renamed file right on the disc it came? (don't forget the BACK a deleted.doc file was just renamed $eleted.doc)

    Thank you

    In Windows 7, the trash is a named hidden system folder $Recycle.Bin.  There is a file with that name in the root of each of your partitions (e.g., C:\$Recycle.bin, D:\$Recycle.bin, etc.).  Within each of these folders are folders for each user in use on the machine account (there may be additional folders).

    When you double-click on the icon to the trash that is displayed on your desktop that opens is a composite of all files $Recycle.bin for the user account that is active.  In other words, you see the files you deleted all partitions of disk, but you will not see the deleted files of another user of your computer.

    If you right-click on the Recycle Bin icon, you can configure the space used for the $Recycle.Bin records on each partition.  The default size appears in about 10 percent of the first 40 GB on the size of the partition more than 5% of the balance.  As a general rule, you should leave the default size.

    See http://www.csee.umbc.edu/courses/undergraduate/FYS102D/Recycle.Bin.Forensics.for.Windows7.and.Windows.Vista.pdf for more details than you probably want to

  • Update the persistent store

    Hi all

    I am a soft developer for BB. I need a little clarification. Is it possible to update the data stored in the persistent store? Pls answer...

    Thank you in advance...

    Welcome on the support forums.

    If you commit something to the store, you replace the existing value. of course, you can read the existing value and change it before you engage again, or commit any other thing.

  • How does the "CHOOOSE DETAILS"?

    How does the "CHOOSE DETAILS"?

    In the box of dlog OPEN line; (top); You can add to your choicequestions relavant;

    You open the box of selctn 'CHOOSE DETAILS';

    If your choice is LOW, in the alphabet; by using the tab "MOUNT", IS TEDIOUS, one step at a time.

    Is there a way bettter?

    To the extent of moving upwards or downwards,

    You can also drag the list once they are in the display of the page.

  • How does the online Flash Player Settings Manager?

    That's one thing, I've always been curious to know: How does the Flash Player Settings Manager ?

    It's a UI SWF running in a regular reader of Flash, but there obviously access to all kinds of Flash Player settings low level, a typical SWF is not.

    My first guess is that the user interface is in fact built into Flash Player, but then why would you go to visit a website to see? The SWF file is actually be served by the site Web and Flash Player's trust to the Web site to access a low level player not made public API?

    As a Flash developer for many years I've just been curious about this for a long time. Now that the Manager is obsolete by the construction in the settings (which is a lot less mysterious) Manager, I thought I would ask before it is completely forgotten.

    -Aaron

    Yes, the SWF is imbued with special powers, which are linked to the domain that sovereign wealth funds are served from.  The settings are basically just special LSO.

  • How does the task before action?

    VSM 9.1.4

    MSSQL

    Hi guys! How does the special action forward in rules CBT works?

    In this scenario, where the dependent task will go if it is enabled by the CBT?

    1. Task Implementatation is initially assigned to GroupX
    2. CBT rules:
      • If the request Type TypeA, proceed to task, set state of StatusA demand and send the task to the GroupA
      • If the request Type is TypeB, go to the task of technical approval, the Request Status StatusB value and prior approval of the Group b

    test.PNG

    When I tried to simulate this, the task of implementation was not sent to GroupA when the request Type TypeA. Instead, he was sent to the assigned group GroupX. Checked the CBT story and it seems that the rules that has task until the action was never carried out.

    Yes, that's all. I think now I know why it works the way you expect.

    I think that if TCC happens to any rule that meet its criteria of condition, it does not check any other rules in addition.

    So you specify different rules for different conditions, but not for different actions.

    And several actions (for example the Request Status value and before the task) can be combined into a single action like this:

  • How does the Vswitch?

    Hello

    Suppose we have an Esxi host with 2 physical network card and a virtual machine running on it. without grouping of NETWORK cards NIC is chosen to forward traffic outside the Esxi?

    and I want to know in this scenario, how does the Vswitch? It sends the mac address-based frame? Let's say that the two network adapters is connected to the same switch.

    Thank you.

    If you don't want to use the pool (for some reason any) then creating vSwitches with only a single uplink or create multiple groups of ports on a vSwitch with multiple uplinks and override the order of failover on each port group to set vmnic active, standby and unused.

    André

  • Re: How does the data retention?

    Hello guys

    How does the conservation of data in vC Ops? In the document it says data retention in the company is 900 days. But in the vSphere user interface, we can keep up to 4 years, which is by default and the minimum level. These two does not?

    There are also resolutions different weeks, monthly, quarterly, and annual. Suppose for example that if we maintain weekly resolution as 12 weeks and months 10, all the quarters 9 and annual 5 years as shown in the picture how it works? I mean after 12 weeks the data will be deleted, but we said 5 years for recall information. How this is achieved.

    Please help me

    Thank you

    VK

    Let me be more specific:

    1. the colelctor collects data interval 20 seconds every 5 min

    2. it is wrapped in a 5 min avg and max value.

    3. these values 5 min is rolled up to hourly, daily, weekly... ect... for two reasons: capacity and analysis of dynamic thresholds which is stored in two databases diffenent calculations.

    It does not compress the stats... it gets stats avg. (Analysis uses avg to get trends used for forcasting ability... ect)

  • How does the BC and calculate shipping UPS?

    How does the BC and calculate shipping UPS? How does he know how many widgets can fit in a box or if a widget is big enough to carry by itself?

    Some of our products are shipping at the right price, and others are far away.

    Are "Product Dimensions" dimensions of the box or widget?

    Thanks for any help.

    Everything is located in one single box no matter how big it is, BC and then calculates a volumetric size of the products, the problem, it's long and thin elements do not get calculated very well and lead to prices being unacceptable for certain types of orders.

    Second question, dimensions of the product should be the size of the box and not the size of the product (for the calculation of delivery somewhat correctly).

    I said that a short time before it can be overcome, but you must calculate your shipment with a 3rd party and then inject in order before ordering, it is out of the box solution, hopefully some new funky BC liquid options come along and fix everything.

  • How does the remote collector?

    I'm not clear on the role of remote collector.

    How does the remote collector? He interviews / transmits data to the internal manifold? What is the flow of data?

    Thank you

    -isayani

    Isayani,

    It was stated earlier in this thread - a case of primary use for the remote collector is to collect metrics to an environment that is separated by a logical or physical network complexity.  For example, a demilitarized zone where you want to just open a minimum of connections internally or to a remote location where you have limited network connectivity and wishes to consolidate the collections to save bandwidth.

    You can also choose to add another collector if your vC Ops server is of limited resources.  However, based on the environment of size that you used in your example, there is no advantage and only an additional complexity of having several collectors.

  • How does the license for CS6?

    Looking to start learning about website coding, and I've heard a lot of Dreamweaver.  I'm not subscribe through CC, I'm looking to buy a license for life CS6 outright.

    But how does the license work?  If I have to reinstall my OS because my hard drive dies, I can reinstall DW using the same product key?  Is it related to my Adobe account, which means that I have to log in to activate it?

    Any help would be appreciated, live chat is down so I thought it would be the next best place.

    If you are unable to disable advance, you can contact Adobe customer for help.  But as I said, you can install up to 2 devices.  I think if you try to install on a 3rd device, your other 2 get automatically turned off.  So even if you need to format C, you will always be able to get up and running quickly.

    Is meant by perpetual license "to use for as long as your operating system can run it."   CS6 is almost 3 years old and is no longer updated.  It is what it is.  Currently, 4 versions of the currently available version of creative cloud.

    Nancy O.

Maybe you are looking for