Event for cache invalidation

Hi,
I'm new to TopLink (10.1.3) and I'm a bit puzzled as to how I'll solve my problem. We are currently loadind resources from the database into memory, about the same way as a ResourceBundle. However, I've set a DailyInvalidationPolicy for the cache and I'm trying to find a way to track an event upon expiry. Is there an Event I can use for a Listener implementation that would reload all my objects into memory from the BD? I've seen events like postRefresh and other events in DescriptorEventAdapter and SessionEventAdapter, but nothing seems to be appropriate. Thanks a lot in advance for any reply...

Hello,
The DailyInvalidationPolicy mechanism does not actively invalidate objects. Instead when an object is requested TopLink checks the read date and determines if the object is invalid and requires refreshing. As such the only event available to mark this operation would be a “postRefresh” event.
--Gordon                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       

Similar Messages

  • UnitOfWork.refreshObject();    don't fire event for Cache Synchronization

    My WebApp use JMS for cache synchronization.
    and I need to refresh session Cache by using method unitOfWork.refreshObject() but it don't publish any message to JMSserver.
    sinse My JMS cache synchronization work well when I do UnitOfWok transaction(insert,update,delete)
    How to force cache synchronization ?
    thank you,
    Kowit Laison

    TopLink cache synchronization only synchronizes changes made through a unit of work, it does not synchronize reads or refreshes.
    You will need to perform the refresh on each server, or make your own JMS message to notify your other server's to refresh.
    You may also wish to investigate the TopLink 10.1.3 Preview release that adds support for Cache Invalidation and Cache Invalidation Synchronization. You may be able to broadcast an invalidation command for the refresh.

  • Deployment: Metadata Cache Invalidation for Adaptive RFC Models

    Dear SDN Member,
    I have deployed the new "Cache Invalidation" Tool at our portal NW04s SPS12.
    We have deployed the tool by using the sdm.
    https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/10465350-b4f5-2910-61ba-a58282b3b6df
    The entrypoint is not visible in the webdynpro console navigation.
    What have I done wrong?
    Best regards,
    Olaf Reiss

    Hello,
    we also deployed it to our NW04s SPS12 Portal (since it was NOT included in SPS12)
    We deplyoed the correct version. For us it is also not visible in the NWA.
    However, it can be called from the Webdynpro console. Then you see it has this direct link.
    http://<server>:<port>/webdynpro/dispatcher/local/InvalidationTool/Invalidation
    However, the thing still has bugs.
    Clicking the button "Get JCO destinations" just crashes with a 500 error (see below). Our developer said
    <i>The initial exception that caused the request to fail, was:
       java.lang.NoSuchFieldError: flush_cache
        at com.sap.invalidation.InvalidationView.onActionGetSLDJCOs(InvalidationView.java:215)
        at com.sap.invalidation.wdp.InternalInvalidationView.wdInvokeEventHandler(InternalInvalidationView.java:236)
        at com.sap.tc.webdynpro.progmodel.generation.DelegatingView.invokeEventHandler(DelegatingView.java:87)
        at com.sap.tc.webdynpro.progmodel.controller.Action.fire(Action.java:67)
        at com.sap.tc.webdynpro.clientserver.window.WindowPhaseModel.doHandleActionEvent(WindowPhaseModel.java:420)
        ... 26 more</i>
    Using the lower part and option 2.
    ("Dictionaries Cache Invalidation" and "Enter Dictionary") is said to be working, if you exactly know the naming.
    But how can we invalidate the RFC caches used by  Visual Composer?
    In Visual Admin/services/Connector Container/../SapFactory/Managed conenction factory/ConnectionDefintion I have already set the Connectionlifetime to 60 and ticked "expiraation" ?
    Best regards
    Ulf

  • Metadata Cache Invalidation for Adaptive RFC Models

    Hi,
    I’m trying the tutorial of the document: Metadata Cache Invalidation for Adaptive RFC Models.
    I’ve downloaded and deployed the EAR for NW7.0 on my server, but when I try to list the JCO destinations I have the following error:
       java.lang.NoSuchFieldError: flush_cache
        at com.sap.invalidation.InvalidationView.onActionGetSLDJCOs(InvalidationView.java:215)
    When I try to invalidate a dictionary, I have the message:
    Cache for Dictionary com.unilog.product.search.model.types.SearchProductModel invalidated
    But the tooltip value is not updated in my application...
    Can anyone give me some tips to use this component?
    Thanks in advance.
    Regards,
    Claire

    hi friends
    u see  this weblogs&pdf,this is helpful for u
    /people/bertram.ganz/blog/2007/01/08/the-top-12-hottest-sap-notes-every-web-dynpro-java-developer-must-know
    https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/f3f93ee7-0c01-0010-2593-d7c28b5377c2
    Regards'
    vino

  • Database Change Notification and TopLink Cache Invalidation

    Has someone succeeed in implementing the How-to Database Change Notification and TopLink Cache Invalidation.
    I have corrected some document errata about the pl/sql content and I manage to have messages in the 'notify_queue'.
    I obtain the Topic in Java from this queue.
    But the TopicSuscriber instances do not receive any message. Is there something to have in mind to make it work ?
    Regards.

    Reviving this thread again...
    I am using DCN feature to build a middle-tier cache. I know oracle has problem sending physical rowid in case of 'Index Organized Table', however, in normal table also its not able to send proper rowid.
    e.g, I have 2 records in Table A with rowid AAARIUAAGAAAV/uABw and AAARIUAAGAAAV/pAAX.
    I have updated both the records. Strangely for the first record, oracle is sending INVALID rowid, although for the second record its sending the valid one.
    Following is the output:
    Row 1:  (Wrong rowid being sent, AAARIUAAGAAAV/uABw is replaced with AAARIUAAGAAAXDCAAr)
    Connection information  : local=localhost.localdomain/127.0.0.1:47633, remote=localhost.localdomain/127.0.0.1:2278
    Registration ID         : 2102
    Notification version    : 1
    Event type              : OBJCHANGE
    Database name           : <sid>
    Table Change Description (length=1)
        operation=[UPDATE], tableName=<table_name>, objectNumber=70164
        Row Change Description (length=1):
          ROW:  operation=UPDATE, ROWID=AAARIUAAGAAAXDCAAr
    Row 2:  (Right rowid being sent, AAARIUAAGAAAV/pAAX)
    Connection information  : local=localhost.localdomain/127.0.0.1:47633, remote=localhost.localdomain/127.0.0.1:2278
    Registration ID         : 2102
    Notification version    : 1
    Event type              : OBJCHANGE
    Database name           : <sid>
    Table Change Description (length=1)
        operation=[UPDATE], tableName=<table_name>, objectNumber=70164
        Row Change Description (length=1):
          ROW:  operation=UPDATE, ROWID=AAARIUAAGAAAV/pAAX
    Any idea ?

  • WD Java RFC metadata cache invalidation without recycle JAVA

    Since we are in a high availability production system, we cannot recycle or CE instance. There are times were the RFC metdata invalidation does not work and the only things that forces it is a recycle of the CE system.
    This is contrary to what SAP has publicized, so is there a process in NWA or a single process (and NOT the server0 process) that we can refresh without stopping and starting the java engine.
    Much like Visual Administration is there a single service we can stop and start to ensure the engine stays up and running and available?
    Thanks
    Weyland Yutani

    Hi Weyland ,
    did you check the guide ?
    Metadata Cache Invalidation for Adaptive RFC Models
    http://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/10465350-b4f5-2910-61ba-a58282b3b6df
    There's a solution in this guide which explains how to proceed to avoid engine restart in case of ARFC.
    (I don't know your engine release, but if it is >= 711, then you may welcome this guide as well:
    Using an Adaptive RFC 2 Model in Web Dynpro Java
    http://www.sdn.sap.com/irj/scn/index?rid=/library/uuid/50f7192d-2808-2d10-189b-df3fa5f71abf )
    I hope this helps.
    Best Regards,
    Ervin

  • How to install the metadata cache invalidation tool

    Hi,
    I have  a problem in using JCO destinations for Adaptive RFC models.
    I went through the below pdf and they mentioned metadata cahce invalidation tool and it is not installed in the portal
    https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/10465350-b4f5-2910-61ba-a58282b3b6df
    please let me know how to install metadata cache invalidation tool
    points will be rewarded for sure for the helpful answers

    I installed the Meta data cache invalidation tool using SDM and when i am trying to run that application from Content administrator it is throwing an exception
    The currently executed application, or one of the components it depends on, has been compiled against class file versions that are different from the ones that are available at runtime.
    If the exception message indicates, that the modified class is part of the Web Dynpro Runtime (package com.sap.tc.webdynpro.) then the running Web Dynpro Runtime is of a version that is not compatible with the Web Dynpro Designtime (Developer Studio or Component Build Server) which has been used to build + compile the application.*
    Note: the above hints are only a guess. They are automatically derived from the exception that occurred and therefore can't be guaranteed to address the original problem in all cases.
    please let me know how to resolve this issue
    Points will be awarded for sure
    Bala

  • How to install metadata cache invalidation tool

    Hi,
    I have  a problem in using JCO destinations for Adaptive RFC models.
    I went through the below pdf and they mentioned metadata cahce invalidation tool and it is not installed in the portal
    https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/10465350-b4f5-2910-61ba-a58282b3b6df
    please let me know how to install metadata cache invalidation tool
    points will be rewarded for sure for the helpful answers

    This tool is already installed on your system.
    1) navigate to http://<hostname>:<port>/index.html
    2) Click on "Webdynpro"
    3) Click on "Web Dynpro Console"
    3) Login as an Administrator (any user with admin priv's is ok).
    4) Notice the last entry in the list

  • Is ServerSession Cache invalidated when we use raw SQL thru a UnitOfWork()

    Is ServerSession Cache invalidated (for the relevant objects that are mapped to any of the tables used in raw sql) when we use raw update/insert/delete SQL thru executeQuery() on UnitofWork acquired from a clientSession ?
    Or we need to do this ourselves by some procedure ?
    If there is any documentation about this, could you please refer me towards it.
    Thanks,
    Krishna

    Sorry, don't know how that question was missed.
    If you update data with SQL or stored procedures, then it's as if another application has updated the database and you must have a solid locking and refreshing policy in place. TopLink updates the cache after a UOW commit based on how you've manipulated the business model, not any adhoc updating SQL.
    - Don

  • Is there an event for a composite has a new child control?

    I want to know is there an event for a composite has a new child control?
    For example,
    Composite parent = new Composite();
    Label child = new Label(parent, SWT.None);
    I want to know the parent composite is getting a child label when new label
    create then immediately.
    Thanks.
    Frank

    Also, I got this comment (a bit of a warning) from Dimitri:
    <blockquote>I just saw this pattern used by <i>[customer]</i> - they (used to check) if the member was senior, and if it was, it was responsible for some periodic cleanup tasks and whatnot.
    This worked fine in the test application and broke immediately when we added dedicated cache servers, or standalone JMX console etc, i.e. it is perfectly possible for the Console to be senior without any application classes in it's classpath, or for the dedicated cache server to be senior and only application servers have logic in place to run stuff.</blockquote>
    In other words, depending on your deployment, it may not be as simple as just "being senior", you may also want to use a "Role Name" for example (configurable and accessible per member).
    Peace,
    Cameron Purdy
    Oracle Coherence: Data Grid for Java and .NET

  • How to trigger DSP cache invalidation and reload?

    We have a scheduled job to update the database nightly. I used DSP caching to increase performance since the data only changes during the nightly updates.
    Does anyone know how can I trigger the DSP cache invalidation and reload the updated data to DSP cache once the data loading is completed on the database server? (The database is hosted on a different server than DSP.)
    Thanks in advance!
    Nav

    On this page
    http://e-docs.bea.com/aldsp/docs25/appdev/ejbclt.html
    Bypassing the Data Cache When Using the Mediator API
    Data retrieved by data service functions can be cached for quick access. This is known as a data caching. (See Configuring the Query Results Cache, in the DSP Administration Guide for details.) Assuming the data changes infrequently, it's likely that you'll want to use the cache capability.
    You can bypass the data cache by passing the GET_CURRENT_DATA attribute within a function call, as shown in Listing 3-7. GET_CURRENT_DATA returns a Boolean value. As a by-product, the cache is also refreshed.
    Listing 3-7 Cache Bypass Example When Using Mediator API
    dataServices.customermanagement.CustomerProfile customerProfileDS =
    customerDS=dataServices.customermanagement.CustomerProfile.getInstance(ctx,appName);RequestConfig
    config = new
    RequestConfig();attr.enableFeature(RequestConfig.GET_CURRENT_DATA);CustomerProfileDocument
    customerProfileDoc customerPlofileDS.CustomerProfile(params,config);

  • Cache Invalidation using Invalidation Rule -not working

    Hi,
    I am caching a JSP using servlet caching by specifying it in the cachespec.xml. I am setting a dependency id for the cache entry and have also set an invalidation rule saying if the dependency id comes as a parameter for "xyz" then invalidate the cache. The jsp is getting cached, and the value that I specify as dependency id is also appearing. But when i try to invalidate it by passing the parameter say "http://localhost/wps/myportal/dynacache?xyz=1234", the cache doesnt get invalidated.
    Please suggest as what is the issue with this approach? Why is the cache invalidation not happening as per the rule set? Is there any other approach to invalidate it other than TTL? I understand invalidation-generator can only be used for web-service client cache.
    Please reply ASAP..
    This is my cache entry
    <cache>
    <cache-entry>
    <class>servlet</class>
    <name>/_caching/jsp/html/CachingPortletView.jsp</name>
    <cache-id>
    <component id="Cached" type="attribute">
    <required>true</required>
    </component>
    <component id="locale" type="locale">
    <required>false</required>
    </component>
    <component id="" ignore-value="true" type="pathinfo">
    <required>false</required>
    </component>
    </cache-id>
    <dependency-id>test
    <component id="Cached" type="attribute">
    <required>true</required>
    </component>
    </dependency-id>
    <invalidation>test
    <component id="Cached" type="parameter">
    <required>true</required>
    </component>
    </invalidation>
    </cache-entry>
    </cache>
    Regards,
    Sariba

    This sounds like an application server specific configuration, which is off-topic here. Try a forum devoted to your application server.

  • How to interprete P* value of v$session in 10g??( event=library cache lock)

    Hi, all.
    The database is 2 node RAC (10.2.0.2.0) on 32-bit windows 2003 EE SP1.
    One session on Node 2 is waiting for "library cache lock" to be released
    for "178874" seconds.
    The detail for the session is as follows:
    SID : 444
    TYPE : USER
    PROGRAM : ORACLE.EXE(J001)
    MODULE : EM_PING
    EVENT : library cache lock ▲
    WAIT_CLASS : Concurrency
    P1TEXT : handle address ▲
    P1 : 1206060532 ▲
    P1RAW : 47E305F4 ▲
    P2TEXT : lock address ▲
    P2 : 1108075084 ▲
    P2RAW : 420BE24C ▲
    P3TEXT : 100*mode+namespace ▲
    P3 : 301 ▲
    P3RAW : 0000012D ▲
    WAIT_IN_SECONDS : 178874
    BLOCKING_SESSION : <-- NONE
    There is no blocking session in v$lock.
    Could you teach me how to interprete P* value of v$session in case of "library cache lock"??
    Thanks and Regards.

    Dear user449027.
    Thanks for your reply.
    column wevent format a20
    column bevent format a20
    select
    waiter.sid waiter,
    waiter.p1raw wlockp1,
    waiter.event wevent,
    blocker_event.sid blocker,
    blocker_event.event bevent
    from
    x$kglpn p,
    gv$session blocker_session,
    gv$session_wait waiter,
    gv$session_wait blocker_event
    where
    p.kglpnuse=blocker_session.saddr and
    p.kglpnhdl=waiter.p1raw and
    (waiter.event like 'library cache lock' ) and
    blocker_event.sid=blocker_session.sid
    order by
    waiter.p1raw,waiter.sid
    returns NO rows.
    The database is 2 Node RAC db.
    Do both instances share "x$kglpn"??
    On Node2, sid=444 session is waiting for library cache lock.
    I issued the following script.
    select kglnaobj, kgllkreq
    from x$kgllk x , v$session s
    where s.saddr = x.kgllkses
    and x.kgllkhdl=s.p1raw
    and s.sid = 444;
    KGLNAOBJ KGLLKREQ
    MGMT_JOB_EXEC_SUMMARY 2
    The owner of MGMT_JOB_EXEC_SUMMARY is sysman.
    And MGMT_JOB_EXEC_SUMMARY is valid.
    I issued "DESC MGMT_JOB_EXEC_SUMMARY".
    "DESC MGMT_JOB_EXEC_SUMMARY" hangs.
    The sid=444 session is waiting for almost 2 days.
    I stopped dbconsole and emagent.
    Thanks and Regards.

  • How can I register a Event for TAB???

    Hi,
    my problem is, that i search for an solution to register an Event for Tabulator (Tab Key).
    If i klick to tab, than it must be trigger the event!!
    I have found in forum following:
    http://webcache.googleusercontent.com/search?q=cache:fk2pfn0bhiwj:www.sdn.sap.com/irj/scn/thread%3fmessageid%3d1078796eventtabulatoralvgrid&cd=50&hl=de&ct=clnk&gl=de
    How must I register my TAB Event ????
    Please give an example!
    Thanks in forwards.
    Ersin

    Thanks for Help:-)

  • When previewing images by clicking on the thumbnail in an Event for example, I've been finding that many images preview in a 'zoomed in' way so only a small part of the photos is previewed in a highly magnified view.

    When previewing images by clicking on the thumbnail in an Event for example, I've been finding that many images preview in a 'zoomed in' way so only a small part of the photos is previewed in a highly magnified view.
    Initially I could find no cause. Then I tried right click - Edit and on the affected images, always get this warning:
    "Image Cannot Be Edited - This photo was previously edited with another application or with an early version of Iphoto. Duplicate this photo to edit it." and a "Duplicate To Edit" Button is displayed. 
    The external Editor defined for iPhoto is Adobe Photoshop Elements.
    Now, I reckon the MUST be others out there affected by this same apparent Preview bug, yet my searches have not revealed any answers.  Also seems impossible to find a contact number for adobe???
    Thanks

    Start '''[https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode Firefox in Safe Mode]''' {web Link} by holding down the '''<Shift ''(Mac Options)'' >''' key, and then starting Firefox. Is the problem still there?

Maybe you are looking for